diff options
Diffstat (limited to 'system')
23 files changed, 534 insertions, 761 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php index d63a1d955..a327f4ad9 100644 --- a/system/database/DB_driver.php +++ b/system/database/DB_driver.php @@ -1118,31 +1118,19 @@ abstract class CI_DB_driver { * Generates a platform-specific update string from the supplied data * * @param string the table name - * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { foreach ($values as $key => $val) { $valstr[] = $key.' = '.$val; } - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - return 'UPDATE '.$table.' SET '.implode(', ', $valstr) - .$where - .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : '') - .($limit ? ' LIMIT '.$limit : ''); + .$this->_compile_wh('qb_where') + .$this->_compile_order_by() + .($this->qb_limit ? ' LIMIT '.$this->qb_limit : ''); } // -------------------------------------------------------------------- @@ -1155,7 +1143,7 @@ abstract class CI_DB_driver { */ protected function _has_operator($str) { - return (bool) preg_match('/(\s|<|>|!|=|IS NULL|IS NOT NULL|BETWEEN)/i', trim($str)); + return (bool) preg_match('/(<|>|!|=|\sIS NULL|\sIS NOT NULL|\sBETWEEN|\sLIKE|\sIN\s*\(|\s)/i', trim($str)); } // -------------------------------------------------------------------- @@ -1168,8 +1156,32 @@ abstract class CI_DB_driver { */ protected function _get_operator($str) { - return preg_match('/(=|!|<|>| IS NULL| IS NOT NULL| BETWEEN)/i', $str, $match) - ? $match[1] : FALSE; + static $_operators = array( + '\s*(?:<|>|!)?=\s*', // =, <=, >=, != + '\s*<>?\s*', // <, <> + '\s*>\s*', // > + '\s+IS NULL', // IS NULL + '\s+IS NOT NULL', // IS NOT NULL + '\s+BETWEEN\s+\S+\s+AND\s+\S+', // BETWEEN value AND value + '\s+IN\s*\([^\)]+\)', // IN(list) + '\s+NOT IN\s*\([^\)]+\)' // NOT IN (list) + ); + + static $_like = array( + '\s+LIKE\s+\S+', // LIKE 'expr' + '\s+NOT LIKE\s+\S+', // NOT LIKE 'expr' + ); + + if ($this->_like_escape_str !== '') + { + $_like[0] .= preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr))); + $_like[1] .= preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr))); + } + + $_operators = array_merge($_operators, $_like); + + return preg_match('/'.implode('|', $_operators).'/i', $str, $match) + ? $match[0] : FALSE; } // -------------------------------------------------------------------- diff --git a/system/database/DB_query_builder.php b/system/database/DB_query_builder.php index 479b7f24a..416132e16 100644 --- a/system/database/DB_query_builder.php +++ b/system/database/DB_query_builder.php @@ -47,7 +47,6 @@ abstract class CI_DB_query_builder extends CI_DB_driver { protected $qb_from = array(); protected $qb_join = array(); protected $qb_where = array(); - protected $qb_like = array(); protected $qb_groupby = array(); protected $qb_having = array(); protected $qb_keys = array(); @@ -55,7 +54,6 @@ abstract class CI_DB_query_builder extends CI_DB_driver { protected $qb_offset = FALSE; protected $qb_orderby = array(); protected $qb_set = array(); - protected $qb_wherein = array(); protected $qb_aliased_tables = array(); protected $qb_store_array = array(); protected $qb_where_group_started = FALSE; @@ -417,7 +415,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { */ public function where($key, $value = NULL, $escape = NULL) { - return $this->_where($key, $value, 'AND ', $escape); + return $this->_wh('qb_where', $key, $value, 'AND ', $escape); } // -------------------------------------------------------------------- @@ -435,24 +433,27 @@ abstract class CI_DB_query_builder extends CI_DB_driver { */ public function or_where($key, $value = NULL, $escape = NULL) { - return $this->_where($key, $value, 'OR ', $escape); + return $this->_wh('qb_where', $key, $value, 'OR ', $escape); } // -------------------------------------------------------------------- /** - * Where + * WHERE, HAVING * - * Called by where() or or_where() + * Called by where(), or_where(), having(), or_having() * + * @param string 'qb_where' or 'qb_having' * @param mixed * @param mixed * @param string - * @param mixed + * @param bool * @return object */ - protected function _where($key, $value = NULL, $type = 'AND ', $escape = NULL) + protected function _wh($qb_key, $key, $value = NULL, $type = 'AND ', $escape = NULL) { + $qb_cache_key = ($qb_key === 'qb_having') ? 'qb_cache_having' : 'qb_cache_where'; + if ( ! is_array($key)) { $key = array($key => $value); @@ -463,17 +464,10 @@ abstract class CI_DB_query_builder extends CI_DB_driver { foreach ($key as $k => $v) { - $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) + $prefix = (count($this->$qb_key) === 0 && count($this->$qb_cache_key) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); - if ($escape === TRUE) - { - $k = (($op = $this->_get_operator($k)) !== FALSE) - ? $this->escape_identifiers(trim(substr($k, 0, strpos($k, $op)))).' '.strstr($k, $op) - : $this->escape_identifiers(trim($k)); - } - if (is_null($v) && ! $this->_has_operator($k)) { // value appears not to have been set, assign the test to IS NULL @@ -484,7 +478,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { { if ($escape === TRUE) { - $v = ' '.$this->escape($v); + $v = ' '.(is_int($v) ? $v : $this->escape($v)); } if ( ! $this->_has_operator($k)) @@ -493,11 +487,11 @@ abstract class CI_DB_query_builder extends CI_DB_driver { } } - $this->qb_where[] = $prefix.$k.$v; + $this->{$qb_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape); if ($this->qb_caching === TRUE) { - $this->qb_cache_where[] = $prefix.$k.$v; - $this->qb_cache_exists[] = 'where'; + $this->{$qb_cache_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape); + $this->qb_cache_exists[] = substr($qb_key, 3); } } @@ -602,27 +596,25 @@ abstract class CI_DB_query_builder extends CI_DB_driver { $not = ($not) ? ' NOT' : ''; + $where_in = array(); foreach ($values as $value) { - $this->qb_wherein[] = $this->escape($value); - } - - if ($escape === TRUE) - { - $key = $this->escape_identifiers(trim($key)); + $wherein[] = $this->escape($value); } $prefix = (count($this->qb_where) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); - $this->qb_where[] = $where_in = $prefix.$key.$not.' IN ('.implode(', ', $this->qb_wherein).') '; + $where_in = array( + 'condition' => $prefix.$key.$not.' IN('.implode(', ', $where_in).')', + 'escape' => $escape + ); + $this->qb_where[] = $where_in; if ($this->qb_caching === TRUE) { $this->qb_cache_where[] = $where_in; $this->qb_cache_exists[] = 'where'; } - // reset the array for multiple calls - $this->qb_wherein = array(); return $this; } @@ -635,12 +627,14 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * multiple calls with AND * * @param mixed - * @param mixed + * @param string + * @param string + * @param bool * @return object */ - public function like($field, $match = '', $side = 'both') + public function like($field, $match = '', $side = 'both', $escape = NULL) { - return $this->_like($field, $match, 'AND ', $side); + return $this->_like($field, $match, 'AND ', $side, '', $escape); } // -------------------------------------------------------------------- @@ -652,12 +646,14 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * multiple calls with AND * * @param mixed - * @param mixed + * @param string + * @param string + * @param bool * @return object */ - public function not_like($field, $match = '', $side = 'both') + public function not_like($field, $match = '', $side = 'both', $escape = NULL) { - return $this->_like($field, $match, 'AND ', $side, 'NOT'); + return $this->_like($field, $match, 'AND ', $side, 'NOT', $escape); } // -------------------------------------------------------------------- @@ -669,12 +665,14 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * multiple calls with OR * * @param mixed - * @param mixed + * @param string + * @param string + * @param bool * @return object */ - public function or_like($field, $match = '', $side = 'both') + public function or_like($field, $match = '', $side = 'both', $escape = NULL) { - return $this->_like($field, $match, 'OR ', $side); + return $this->_like($field, $match, 'OR ', $side, '', $escape); } // -------------------------------------------------------------------- @@ -686,12 +684,14 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * multiple calls with OR * * @param mixed - * @param mixed + * @param string + * @param string + * @param bool * @return object */ - public function or_not_like($field, $match = '', $side = 'both') + public function or_not_like($field, $match = '', $side = 'both', $escape = NULL) { - return $this->_like($field, $match, 'OR ', $side, 'NOT'); + return $this->_like($field, $match, 'OR ', $side, 'NOT', $escape); } // -------------------------------------------------------------------- @@ -699,56 +699,60 @@ abstract class CI_DB_query_builder extends CI_DB_driver { /** * Like * - * Called by like() or orlike() + * Called by like(), or_like(), not_like, or_not_like() * * @param mixed - * @param mixed * @param string + * @param string + * @param string + * @param string + * @param bool * @return object */ - protected function _like($field, $match = '', $type = 'AND ', $side = 'both', $not = '') + protected function _like($field, $match = '', $type = 'AND ', $side = 'both', $not = '', $escape = NULL) { if ( ! is_array($field)) { $field = array($field => $match); } + is_bool($escape) OR $escape = $this->_protect_identifiers; + $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) + ? $this->_group_get_type('') : $this->_group_get_type($type); + foreach ($field as $k => $v) { - $k = $this->protect_identifiers($k); - $prefix = (count($this->qb_like) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); $v = $this->escape_like_str($v); if ($side === 'none') { - $like_statement = "{$prefix} $k $not LIKE '{$v}'"; + $like_statement = "{$prefix} {$k} {$not} LIKE '{$v}'"; } elseif ($side === 'before') { - $like_statement = "{$prefix} $k $not LIKE '%{$v}'"; + $like_statement = "{$prefix} {$k} {$not} LIKE '%{$v}'"; } elseif ($side === 'after') { - $like_statement = "{$prefix} $k $not LIKE '{$v}%'"; + $like_statement = "{$prefix} {$k} {$not} LIKE '{$v}%'"; } else { - $like_statement = "{$prefix} $k $not LIKE '%{$v}%'"; + $like_statement = "{$prefix} {$k} {$not} LIKE '%{$v}%'"; } // some platforms require an escape sequence definition for LIKE wildcards if ($this->_like_escape_str !== '') { - $like_statement = $like_statement.sprintf($this->_like_escape_str, $this->_like_escape_chr); + $like_statement .= sprintf($this->_like_escape_str, $this->_like_escape_chr); } - $this->qb_like[] = $like_statement; + $this->qb_where[] = array('condition' => $like_statement, 'escape' => $escape); if ($this->qb_caching === TRUE) { - $this->qb_cache_like[] = $like_statement; - $this->qb_cache_exists[] = 'like'; + $this->qb_cache_where[] = $like_statement; + $this->qb_cache_exists[] = 'where'; } - } return $this; @@ -769,11 +773,15 @@ abstract class CI_DB_query_builder extends CI_DB_driver { $this->qb_where_group_started = TRUE; $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? '' : $type; - $this->qb_where[] = $value = $prefix.$not.str_repeat(' ', ++$this->qb_where_group_count).' ('; + $where = array( + 'condition' => $prefix.$not.str_repeat(' ', ++$this->qb_where_group_count).' (', + 'escape' => FALSE + ); + $this->qb_where[] = $where; if ($this->qb_caching) { - $this->qb_cache_where[] = $value; + $this->qb_cache_where[] = $where; } return $this; @@ -825,11 +833,15 @@ abstract class CI_DB_query_builder extends CI_DB_driver { public function group_end() { $this->qb_where_group_started = FALSE; - $this->qb_where[] = $value = str_repeat(' ', $this->qb_where_group_count--) . ')'; + $where = array( + 'condition' => str_repeat(' ', $this->qb_where_group_count--).')', + 'escape' => FALSE + ); + $this->qb_where[] = $where; if ($this->qb_caching) { - $this->qb_cache_where[] = $value; + $this->qb_cache_where[] = $where; } return $this; @@ -862,13 +874,18 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * GROUP BY * * @param string + * @param bool * @return object */ - public function group_by($by) + public function group_by($by, $escape = NULL) { + is_bool($escape) OR $escape = $this->_protect_identifiers; + if (is_string($by)) { - $by = explode(',', $by); + $by = ($escape === TRUE) + ? explode(',', $by) + : array($by); } foreach ($by as $val) @@ -877,8 +894,9 @@ abstract class CI_DB_query_builder extends CI_DB_driver { if ($val !== '') { - $this->qb_groupby[] = $val = $this->protect_identifiers($val); + $val = array('field' => $val, 'escape' => $escape); + $this->qb_groupby[] = $val; if ($this->qb_caching === TRUE) { $this->qb_cache_groupby[] = $val; @@ -904,7 +922,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { */ public function having($key, $value = '', $escape = NULL) { - return $this->_having($key, $value, 'AND ', $escape); + return $this->_wh('qb_having', $key, $value, 'AND ', $escape); } // -------------------------------------------------------------------- @@ -921,58 +939,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { */ public function or_having($key, $value = '', $escape = NULL) { - return $this->_having($key, $value, 'OR ', $escape); - } - - // -------------------------------------------------------------------- - - /** - * Sets the HAVING values - * - * Called by having() or or_having() - * - * @param string - * @param string - * @param string - * @param bool - * @return object - */ - protected function _having($key, $value = '', $type = 'AND ', $escape = NULL) - { - if ( ! is_array($key)) - { - $key = array($key => $value); - } - - is_bool($escape) OR $escape = $this->_protect_identifiers; - - foreach ($key as $k => $v) - { - $prefix = (count($this->qb_having) === 0) ? '' : $type; - - $k = $this->_has_operator($k) - ? $this->protect_identifiers(substr($k, 0, strpos(rtrim($k), ' ')), FALSE, $escape).strchr(rtrim($k), ' ') - : $this->protect_identifiers($k, FALSE, $escape); - - if ( ! $this->_has_operator($k)) - { - $k .= ' = '; - } - - if ($v !== '') - { - $v = ' '.$this->escape($v); - } - - $this->qb_having[] = $prefix.$k.$v; - if ($this->qb_caching === TRUE) - { - $this->qb_cache_having[] = $prefix.$k.$v; - $this->qb_cache_exists[] = 'having'; - } - } - - return $this; + return $this->_wh('qb_having', $key, $value, 'OR ', $escape); } // -------------------------------------------------------------------- @@ -981,54 +948,50 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * Sets the ORDER BY value * * @param string - * @param string direction: asc or desc + * @param string direction: ASC or DESC * @param bool enable field name escaping * @return object */ public function order_by($orderby, $direction = '', $escape = NULL) { - if (strtolower($direction) === 'random') + $direction = trim($direction); + + if (strtolower($direction) === 'random' OR $orderby === $this->_random_keyword) { - $orderby = ''; // Random results want or don't need a field name - $direction = $this->_random_keyword; + // Random ordered results don't need a field name + $orderby = $this->_random_keyword; + $direction = ''; } - elseif (trim($direction) !== '') + elseif (empty($orderby)) { - $direction = in_array(strtoupper(trim($direction)), array('ASC', 'DESC'), TRUE) ? ' '.$direction : ' ASC'; + return $this; + } + elseif ($direction !== '') + { + $direction = in_array(strtoupper(trim($direction)), array('ASC', 'DESC'), TRUE) ? ' '.$direction : ''; } is_bool($escape) OR $escape = $this->_protect_identifiers; - if ($escape === TRUE && strpos($orderby, ',') !== FALSE) + if ($escape === FALSE) { - $temp = array(); - foreach (explode(',', $orderby) as $part) - { - $part = trim($part); - if ( ! in_array($part, $this->qb_aliased_tables)) - { - $part = preg_match('/^(.+)\s+(ASC|DESC)$/i', $part, $matches) - ? $this->protect_identifiers(rtrim($matches[1])).' '.$matches[2] - : $this->protect_identifiers($part); - } - - $temp[] = $part; - } - - $orderby = implode(', ', $temp); + $qb_orderby[] = array(array('field' => $orderby, 'direction' => $direction, $escape => FALSE)); } - elseif ($direction !== $this->_random_keyword && $escape === TRUE) + else { - $orderby = preg_match('/^(.+)\s+(ASC|DESC)$/i', $orderby, $matches) - ? $this->protect_identifiers(rtrim($matches[1])).' '.$matches[2] - : $this->protect_identifiers($orderby); + $qb_orderby = array(); + foreach (explode(',', $orderby) as $field) + { + $qb_orderby[] = ($direction === '' && preg_match('/\s+(ASC|DESC)$/i', rtrim($field), $match, PREG_OFFSET_CAPTURE)) + ? array('field' => ltrim(substr($field, 0, $match[0][1])), 'direction' => ' '.$match[1][0], 'escape' => TRUE) + : array('field' => trim($field), 'direction' => $direction, 'escape' => TRUE); + } } - $this->qb_orderby[] = $orderby_statement = $orderby.$direction; - + $this->qb_orderby = array_merge($this->qb_orderby, $qb_orderby); if ($this->qb_caching === TRUE) { - $this->qb_cache_orderby[] = $orderby_statement; + $this->qb_cache_orderby = array_merge($this->qb_cache_orderby, $qb_orderby); $this->qb_cache_exists[] = 'orderby'; } @@ -1044,7 +1007,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * @param int the offset value * @return object */ - public function limit($value, $offset = NULL) + public function limit($value, $offset = FALSE) { is_null($value) OR $this->qb_limit = (int) $value; empty($offset) OR $this->qb_offset = (int) $offset; @@ -1074,13 +1037,11 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - return $sql.' LIMIT '.($offset ? $offset.', ' : '').$limit; + return $sql.' LIMIT '.($this->qb_offset ? $this->qb_offset.', ' : '').$this->qb_limit; } // -------------------------------------------------------------------- @@ -1558,7 +1519,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { return FALSE; } - $sql = $this->_update($this->protect_identifiers($this->qb_from[0], TRUE, NULL, FALSE), $this->qb_set, $this->qb_where, $this->qb_orderby, $this->qb_limit); + $sql = $this->_update($this->protect_identifiers($this->qb_from[0], TRUE, NULL, FALSE), $this->qb_set); if ($reset === TRUE) { @@ -1605,7 +1566,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { $this->limit($limit); } - $sql = $this->_update($this->protect_identifiers($this->qb_from[0], TRUE, NULL, FALSE), $this->qb_set, $this->qb_where, $this->qb_orderby, $this->qb_limit, $this->qb_like); + $sql = $this->_update($this->protect_identifiers($this->qb_from[0], TRUE, NULL, FALSE), $this->qb_set); $this->_reset_write(); return $this->query($sql); @@ -1687,7 +1648,7 @@ abstract class CI_DB_query_builder extends CI_DB_driver { // Batch this baby for ($i = 0, $total = count($this->qb_set); $i < $total; $i += 100) { - $this->query($this->_update_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->qb_set, $i, 100), $this->protect_identifiers($index), $this->qb_where)); + $this->query($this->_update_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->qb_set, $i, 100), $this->protect_identifiers($index))); } $this->_reset_write(); @@ -1893,12 +1854,12 @@ abstract class CI_DB_query_builder extends CI_DB_driver { $this->limit($limit); } - if (count($this->qb_where) === 0 && count($this->qb_wherein) === 0 && count($this->qb_like) === 0) + if (count($this->qb_where) === 0) { return ($this->db_debug) ? $this->display_error('db_del_must_use_where') : FALSE; } - $sql = $this->_delete($table, $this->qb_where, $this->qb_like, $this->qb_limit); + $sql = $this->_delete($table); if ($reset_data) { $this->_reset_write(); @@ -1915,21 +1876,12 @@ abstract class CI_DB_query_builder extends CI_DB_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - return 'DELETE FROM '.$table - .(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : '') - .($limit ? ' LIMIT '.(int) $limit : ''); + return 'DELETE FROM '.$table.$this->_compile_wh('qb_where') + .($this->qb_limit ? ' LIMIT '.$this->qb_limit : ''); } // -------------------------------------------------------------------- @@ -2067,50 +2019,140 @@ abstract class CI_DB_query_builder extends CI_DB_driver { $sql .= "\n".implode("\n", $this->qb_join); } - // Write the "WHERE" portion of the query - if (count($this->qb_where) > 0 OR count($this->qb_like) > 0) + $sql .= $this->_compile_wh('qb_where') + .$this->_compile_group_by() + .$this->_compile_wh('qb_having') + .$this->_compile_order_by(); // ORDER BY + + // LIMIT + if ($this->qb_limit) { - $sql .= "\nWHERE "; + return $this->_limit($sql."\n"); } - $sql .= implode("\n", $this->qb_where); + return $sql; + } - // Write the "LIKE" portion of the query - if (count($this->qb_like) > 0) + // -------------------------------------------------------------------- + + /** + * Compile WHERE, HAVING statements + * + * Escapes identifiers in WHERE and HAVING statements at execution time. + * + * Required so that aliases are tracked properly, regardless of wether + * where(), or_where(), having(), or_having are called prior to from(), + * join() and dbprefix is added only if needed. + * + * @param string 'qb_where' or 'qb_having' + * @return string SQL statement + */ + protected function _compile_wh($qb_key) + { + if (count($this->$qb_key) > 0) { - if (count($this->qb_where) > 0) + $sql = ($qb_key === 'qb_having') ? "\nHAVING " : "\nWHERE "; + + for ($i = 0, $c = count($this->$qb_key); $i < $c; $i++) { - $sql .= "\nAND "; + if ($this->{$qb_key}[$i]['escape'] === FALSE) + { + $this->{$qb_key}[$i] = $this->{$qb_key}[$i]['condition']; + continue; + } + + $op = preg_quote($this->_get_operator($this->{$qb_key}[$i]['condition'])); + if ( ! preg_match('/^(\s*(?:AND|OR)\s+)?(\(?)(.*)('.$op.')(.*(?<!\)))?(\)?)$/i', $this->{$qb_key}[$i]['condition'], $matches)) + { + $this->{$qb_key}[$i] = $this->{$qb_key}[$i]['condition']; + continue; + } + + // $matches = array( + // 0 => 'OR (test <= foo)', /* the whole thing */ + // 1 => 'OR ', /* optional */ + // 2 => '(', /* optional */ + // 3 => 'test', /* the field name */ + // 4 => ' <= ', /* $op */ + // 5 => 'foo', /* optional, if $op is e.g. 'IS NULL' */ + // 6 => ')' /* optional */ + // ); + empty($matches[5]) OR $matches[5] = ' '.$this->protect_identifiers(trim($matches[5])); + $this->{$qb_key}[$i] = $matches[1].$matches[2].$this->protect_identifiers(trim($matches[3])) + .' '.trim($matches[4]).$matches[5].$matches[6]; } - $sql .= implode("\n", $this->qb_like); + return implode("\n", $this->$qb_key); } - // Write the "GROUP BY" portion of the query + return ''; + } + + // -------------------------------------------------------------------- + + /** + * Compile GROUP BY + * + * Escapes identifiers in GROUP BY statements at execution time. + * + * Required so that aliases are tracked properly, regardless of wether + * group_by() is called prior to from(), join() and dbprefix is added + * only if needed. + * + * @return string SQL statement + */ + protected function _compile_group_by() + { if (count($this->qb_groupby) > 0) { - $sql .= "\nGROUP BY ".implode(', ', $this->qb_groupby); - } + $sql = "\nGROUP BY "; - // Write the "HAVING" portion of the query - if (count($this->qb_having) > 0) - { - $sql .= "\nHAVING ".implode("\n", $this->qb_having); + for ($i = 0, $c = count($this->qb_groupby); $i < $c; $i++) + { + $this->qb_groupby[$i] = ($this->qb_groupby[$i]['escape'] === FALSE) + ? $this->qb_groupby[$i]['field'] + : $this->protect_identifiers($qb_groupby[$i]['field']); + } + + $sql .= implode(', ', $this->qb_groupby); } - // Write the "ORDER BY" portion of the query + return ''; + } + + // -------------------------------------------------------------------- + + /** + * Compile ORDER BY + * + * Escapes identifiers in ORDER BY statements at execution time. + * + * Required so that aliases are tracked properly, regardless of wether + * order_by() is called prior to from(), join() and dbprefix is added + * only if needed. + * + * @return string SQL statement + */ + protected function _compile_order_by() + { if (count($this->qb_orderby) > 0) { - $sql .= "\nORDER BY ".implode(', ', $this->qb_orderby); - } + $sql = "\nORDER BY "; - // Write the "LIMIT" portion of the query - if (is_numeric($this->qb_limit)) - { - return $this->_limit($sql."\n", $this->qb_limit, $this->qb_offset); + for ($i = 0, $c = count($this->qb_orderby); $i < $c; $i++) + { + if ($this->qb_orderby[$i]['escape'] !== FALSE) + { + $this->qb_orderby[$i]['field'] = $this->protect_identifiers($field); + } + + $this->qb_orderby[$i] = $this->qb_orderby[$i]['field'].$this->qb_orderby[$i]['direction']; + } + + $sql .= implode(', ', $this->qb_orderby); } - return $sql; + return ''; } // -------------------------------------------------------------------- @@ -2322,11 +2364,9 @@ abstract class CI_DB_query_builder extends CI_DB_driver { 'qb_from' => array(), 'qb_join' => array(), 'qb_where' => array(), - 'qb_like' => array(), 'qb_groupby' => array(), 'qb_having' => array(), 'qb_orderby' => array(), - 'qb_wherein' => array(), 'qb_aliased_tables' => array(), 'qb_no_escape' => array(), 'qb_distinct' => FALSE, @@ -2351,7 +2391,6 @@ abstract class CI_DB_query_builder extends CI_DB_driver { 'qb_set' => array(), 'qb_from' => array(), 'qb_where' => array(), - 'qb_like' => array(), 'qb_orderby' => array(), 'qb_keys' => array(), 'qb_limit' => FALSE diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php index a3d0287f5..e243aae9f 100644 --- a/system/database/drivers/cubrid/cubrid_driver.php +++ b/system/database/drivers/cubrid/cubrid_driver.php @@ -396,10 +396,10 @@ class CI_DB_cubrid_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -423,9 +423,9 @@ class CI_DB_cubrid_driver extends CI_DB { .'ELSE '.$k.' END, '; } - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN ('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/ibase/ibase_driver.php b/system/database/drivers/ibase/ibase_driver.php index c9027670d..7b37b9999 100644 --- a/system/database/drivers/ibase/ibase_driver.php +++ b/system/database/drivers/ibase/ibase_driver.php @@ -285,7 +285,10 @@ class CI_DB_ibase_driver extends CI_DB { */ protected function _field_data($table) { - return $this->_limit('SELECT * FROM '.$this->protect_identifiers($table), 1, NULL); + $this->qb_limit = 1; + $sql = $this->_limit('SELECT * FROM '.$this->protect_identifiers($table)); + $this->qb_limit = 0; + return $sql; } // -------------------------------------------------------------------- @@ -328,29 +331,12 @@ class CI_DB_ibase_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr) - .$where - .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : ''); + $this->qb_limit = FALSE; + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -379,19 +365,12 @@ class CI_DB_ibase_driver extends CI_DB { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -402,22 +381,20 @@ class CI_DB_ibase_driver extends CI_DB { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { // Limit clause depends on if Interbase or Firebird if (stripos($this->version(), 'firebird') !== FALSE) { - $select = 'FIRST '. (int) $limit - .($offset ? ' SKIP '. (int) $offset : ''); + $select = 'FIRST '.$this->qb_limit + .($this->qb_offset ? ' SKIP '.$this->qb_offset : ''); } else { $select = 'ROWS ' - .($offset ? (int) $offset.' TO '.($limit + $offset) : (int) $limit); + .($this->qb_offset ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit); } return preg_replace('`SELECT`i', 'SELECT '.$select, $sql); diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php index 1714704a8..edc6a8480 100644 --- a/system/database/drivers/mssql/mssql_driver.php +++ b/system/database/drivers/mssql/mssql_driver.php @@ -388,27 +388,13 @@ class CI_DB_mssql_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).' WHERE '.$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -437,23 +423,16 @@ class CI_DB_mssql_driver extends CI_DB { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } - return ($limit) - ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' - : 'DELETE FROM '.$table.$conditions; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -464,33 +443,25 @@ class CI_DB_mssql_driver extends CI_DB { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - // As of SQL Server 2012 (11.0.*) OFFSET is supported - if (version_compare($this->version(), '11', '>=')) - { - return $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY'; - } - - $limit = $offset + $limit; + $limit = $this->qb_offset + $this->qb_limit; // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported, // however an ORDER BY clause is required for it to work - if (version_compare($this->version(), '9', '>=') && $offset && ! empty($this->qb_orderby)) + if (version_compare($this->version(), '9', '>=') && $this->qb_offset && ! empty($this->qb_orderby)) { - $orderby = 'ORDER BY '.implode(', ', $this->qb_orderby); + $orderby = $this->_compile_order_by(); // We have to strip the ORDER BY clause - $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby))); + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n" - .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) ."\n) ".$this->escape_identifiers('CI_subquery') - ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit; + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; } return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php index 29db90408..0a15fe447 100644 --- a/system/database/drivers/mysql/mysql_driver.php +++ b/system/database/drivers/mysql/mysql_driver.php @@ -420,10 +420,10 @@ class CI_DB_mysql_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -447,9 +447,9 @@ class CI_DB_mysql_driver extends CI_DB { .'ELSE '.$k.' END, '; } - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php index be61aab20..5f5a31d34 100644 --- a/system/database/drivers/mysqli/mysqli_driver.php +++ b/system/database/drivers/mysqli/mysqli_driver.php @@ -412,10 +412,10 @@ class CI_DB_mysqli_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -439,11 +439,9 @@ class CI_DB_mysqli_driver extends CI_DB { .'ELSE '.$k.' END, '; } - $where = ($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : ''; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN('.implode(',', $ids).')'; + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php index 691247fee..dcc46527c 100644 --- a/system/database/drivers/oci8/oci8_driver.php +++ b/system/database/drivers/oci8/oci8_driver.php @@ -611,20 +611,17 @@ class CI_DB_oci8_driver extends CI_DB { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - empty($limit) OR $conditions[] = 'rownum <= '.$limit; + if ($this->qb_limit) + { + $this->where('rownum <= ',$this->qb_limit, FALSE); + $this->qb_limit = FALSE; + } - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -635,15 +632,13 @@ class CI_DB_oci8_driver extends CI_DB { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { $this->limit_used = TRUE; - return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit + 1).')' - .($offset ? ' WHERE rnum >= '.($offset + 1): ''); + return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')' + .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1): ''); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php index 8f0a474b0..f62400245 100644 --- a/system/database/drivers/odbc/odbc_driver.php +++ b/system/database/drivers/odbc/odbc_driver.php @@ -307,6 +307,24 @@ class CI_DB_odbc_driver extends CI_DB { // -------------------------------------------------------------------- /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string the table name + * @param array the update data + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** * Truncate statement * * Generates a platform-specific truncate string from the supplied data @@ -325,6 +343,22 @@ class CI_DB_odbc_driver extends CI_DB { // -------------------------------------------------------------------- /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string the table name + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** * Close DB Connection * * @return void diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php index 705b16560..ee5af783e 100644 --- a/system/database/drivers/pdo/pdo_driver.php +++ b/system/database/drivers/pdo/pdo_driver.php @@ -360,14 +360,12 @@ class CI_DB_pdo_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); - $where = ($where !== '' && count($where) >=1) ? implode(' ', $where).' AND ' : ''; - foreach ($values as $key => $val) { $ids[] = $val[$index]; @@ -381,9 +379,7 @@ class CI_DB_pdo_driver extends CI_DB { } } - $sql = 'UPDATE '.$table.' SET '; $cases = ''; - foreach ($final as $k => $v) { $cases .= $k.' = CASE '."\n"; @@ -396,10 +392,9 @@ class CI_DB_pdo_driver extends CI_DB { $cases .= 'ELSE '.$k.' END, '; } - $sql .= substr($cases, 0, -2); - $sql .= ' WHERE '.$where.$index.' IN ('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); - return $sql; + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php index e287f5c63..0e6877c28 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php @@ -152,27 +152,13 @@ class CI_DB_pdo_4d_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -183,21 +169,12 @@ class CI_DB_pdo_4d_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; - - return 'DELETE FROM '.$table.$conditions; + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -208,13 +185,11 @@ class CI_DB_pdo_4d_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : ''); + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); } } diff --git a/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php b/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php index 05eeacfe6..741126310 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php @@ -133,10 +133,10 @@ class CI_DB_pdo_cubrid_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -160,9 +160,9 @@ class CI_DB_pdo_cubrid_driver extends CI_DB_pdo_driver { .'ELSE '.$k.' END), '; } - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php index 7060c9eb9..d6465cda2 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php @@ -175,27 +175,13 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -206,23 +192,16 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } - return ($limit) - ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' - : 'DELETE FROM '.$table.$conditions; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -233,27 +212,25 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - $limit = $offset + $limit; + $limit = $this->qb_offset + $this->qb_limit; // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported, // however an ORDER BY clause is required for it to work - if (version_compare($this->version(), '9', '>=') && $offset && ! empty($this->qb_orderby)) + if (version_compare($this->version(), '9', '>=') && $this->qb_offset && ! empty($this->qb_orderby)) { - $orderby = 'ORDER BY '.implode(', ', $this->qb_orderby); + $orderby = $this->_compile_order_by(); // We have to strip the ORDER BY clause - $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby))); + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n" - .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) ."\n) ".$this->escape_identifiers('CI_subquery') - ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit; + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; } return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); @@ -262,4 +239,4 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver { } /* End of file pdo_dblib_driver.php */ -/* Location: ./system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php */
\ No newline at end of file diff --git a/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php b/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php index c074a9a78..5b36342d2 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php @@ -161,29 +161,12 @@ class CI_DB_pdo_firebird_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr) - .$where - .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : ''); + $this->qb_limit = FALSE; + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -212,19 +195,12 @@ class CI_DB_pdo_firebird_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -235,22 +211,20 @@ class CI_DB_pdo_firebird_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { // Limit clause depends on if Interbase or Firebird if (stripos($this->version(), 'firebird') !== FALSE) { - $select = 'FIRST '. (int) $limit - .($offset > 0 ? ' SKIP '. (int) $offset : ''); + $select = 'FIRST '.$this->qb_limit + .($this->qb_offset > 0 ? ' SKIP '.$this->qb_offset : ''); } else { $select = 'ROWS ' - .($offset > 0 ? (int) $offset.' TO '.($limit + $offset) : (int) $limit); + .($this->qb_offset > 0 ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit); } return preg_replace('`SELECT`i', 'SELECT '.$select, $sql); diff --git a/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php b/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php index 832c03c96..7563a42d6 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php @@ -187,27 +187,13 @@ class CI_DB_pdo_ibm_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -218,21 +204,12 @@ class CI_DB_pdo_ibm_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; - - return 'DELETE FROM '.$table.$conditions; + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php b/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php index a3efc63dc..82480498a 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php @@ -181,27 +181,13 @@ class CI_DB_pdo_informix_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -230,21 +216,12 @@ class CI_DB_pdo_informix_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; - - return 'DELETE FROM '.$table.$conditions; + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -255,13 +232,11 @@ class CI_DB_pdo_informix_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - $select = 'SELECT '.($offset ? 'SKIP '.$offset : '').'FIRST '.$limit.' '; + $select = 'SELECT '.($this->qb_offset ? 'SKIP '.$this->qb_offset : '').'FIRST '.$this->qb_limit.' '; return preg_replace('/^(SELECT\s)/i', $select, $sql, 1); } diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php index 78afe246c..67da156bf 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php @@ -161,10 +161,10 @@ class CI_DB_pdo_mysql_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -188,9 +188,9 @@ class CI_DB_pdo_mysql_driver extends CI_DB_pdo_driver { .'ELSE '.$k.' END), '; } - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- diff --git a/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php index 56ec1bce1..cfbb639a8 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php @@ -190,20 +190,17 @@ class CI_DB_pdo_oci_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - empty($limit) OR $conditions[] = 'rownum <= '.$limit; + if ($this->qb_limit) + { + $this->where('rownum <= ',$this->qb_limit, FALSE); + $this->qb_limit = FALSE; + } - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -214,14 +211,12 @@ class CI_DB_pdo_oci_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit + 1).')' - .($offset ? ' WHERE rnum >= '.($offset + 1): ''); + return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')' + .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1): ''); } } diff --git a/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php index 392754ff7..0c3467484 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php @@ -179,27 +179,13 @@ class CI_DB_pdo_odbc_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -228,21 +214,12 @@ class CI_DB_pdo_odbc_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; - - return 'DELETE FROM '.$table.$conditions; + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -253,13 +230,11 @@ class CI_DB_pdo_odbc_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$this->qb_limit.' ', $sql); } } diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php index 9a476f143..07cf8f56b 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php @@ -164,27 +164,13 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -196,10 +182,10 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -218,14 +204,14 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { $cases = ''; foreach ($final as $k => $v) { - $cases .= $k.' = (CASE '.$k."\n" + $cases .= $k.' = (CASE '.$index."\n" .implode("\n", $v)."\n" .'ELSE '.$k.' END), '; } - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- @@ -236,19 +222,12 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -259,29 +238,31 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : ''); + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); } // -------------------------------------------------------------------- /** - * Where + * WHERE, HAVING * - * Called by where() or or_where() + * Called by where(), or_where(), having(), or_having() * + * @param string 'qb_where' or 'qb_having' * @param mixed * @param mixed * @param string + * @param bool * @return object */ - protected function _where($key, $value = NULL, $type = 'AND ', $escape = NULL) + protected function _wh($qb_key, $key, $value = NULL, $type = 'AND ', $escape = NULL) { + $qb_cache_key = ($qb_key === 'qb_having') ? 'qb_cache_having' : 'qb_cache_where'; + if ( ! is_array($key)) { $key = array($key => $value); @@ -292,14 +273,10 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { foreach ($key as $k => $v) { - $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) + $prefix = (count($this->$qb_key) === 0 && count($this->$qb_cache_key) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); - $k = (($op = $this->_get_operator($k)) !== FALSE) - ? $this->protect_identifiers(substr($k, 0, strpos($k, $op)), FALSE, $escape).strstr($k, $op) - : $this->protect_identifiers($k, FALSE, $escape); - if (is_null($v) && ! $this->_has_operator($k)) { // value appears not to have been set, assign the test to IS NULL @@ -308,13 +285,13 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { if ( ! is_null($v)) { - if ($escape === TRUE) + if (is_bool($v)) { - $v = ' '.$this->escape($v); + $v = ' '.($v ? 'TRUE' : 'FALSE'); } - elseif (is_bool($v)) + elseif ($escape === TRUE) { - $v = ($v ? ' TRUE' : ' FALSE'); + $v = ' '.(is_int($v) ? $v : $this->escape($v)); } if ( ! $this->_has_operator($k)) @@ -323,11 +300,11 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver { } } - $this->qb_where[] = $prefix.$k.$v; + $this->{$qb_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape); if ($this->qb_caching === TRUE) { - $this->qb_cache_where[] = $prefix.$k.$v; - $this->qb_cache_exists[] = 'where'; + $this->{$qb_cache_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape); + $this->qb_cache_exists[] = substr($qb_key, 3); } } diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php index f125b8f50..4b5747d90 100644 --- a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php +++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php @@ -204,27 +204,13 @@ class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -235,23 +221,16 @@ class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } - return ($limit) - ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' - : 'DELETE FROM '.$table.$conditions; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -262,32 +241,30 @@ class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { // As of SQL Server 2012 (11.0.*) OFFSET is supported if (version_compare($this->version(), '11', '>=')) { - return $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY'; + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; } - $limit = $offset + $limit; + $limit = $this->qb_offset + $this->qb_limit; // An ORDER BY clause is required for ROW_NUMBER() to work - if ($offset && ! empty($this->qb_orderby)) + if ($this->qb_offset && ! empty($this->qb_orderby)) { - $orderby = 'ORDER BY '.implode(', ', $this->qb_orderby); + $orderby = $this->_compile_order_by(); // We have to strip the ORDER BY clause - $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby))); + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n" - .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) ."\n) ".$this->escape_identifiers('CI_subquery') - ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit; + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; } return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); @@ -296,4 +273,4 @@ class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver { } /* End of file pdo_sqlsrv_driver.php */ -/* Location: ./system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php */ +/* Location: ./system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php */
\ No newline at end of file diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php index 031740851..ddcf3f7c3 100644 --- a/system/database/drivers/postgre/postgre_driver.php +++ b/system/database/drivers/postgre/postgre_driver.php @@ -475,27 +475,13 @@ class CI_DB_postgre_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -507,10 +493,10 @@ class CI_DB_postgre_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause + * @param string the where key * @return string */ - protected function _update_batch($table, $values, $index, $where = NULL) + protected function _update_batch($table, $values, $index) { $ids = array(); foreach ($values as $key => $val) @@ -534,9 +520,9 @@ class CI_DB_postgre_driver extends CI_DB { .'ELSE '.$k.' END), '; } - return 'UPDATE '.$table.' SET '.substr($cases, 0, -2) - .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '') - .$index.' IN('.implode(',', $ids).')'; + $this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); } // -------------------------------------------------------------------- @@ -547,19 +533,12 @@ class CI_DB_postgre_driver extends CI_DB { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause (ignored) * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : ''); + $this->qb_limit = FALSE; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -570,30 +549,31 @@ class CI_DB_postgre_driver extends CI_DB { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { - return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : ''); + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); } // -------------------------------------------------------------------- /** - * Where + * WHERE, HAVING * - * Called by where() or or_where() + * Called by where(), or_where(), having(), or_having() * + * @param string 'qb_where' or 'qb_having' * @param mixed * @param mixed * @param string - * @param mixed + * @param bool * @return object */ - protected function _where($key, $value = NULL, $type = 'AND ', $escape = NULL) + protected function _wh($qb_key, $key, $value = NULL, $type = 'AND ', $escape = NULL) { + $qb_cache_key = ($qb_key === 'qb_having') ? 'qb_cache_having' : 'qb_cache_where'; + if ( ! is_array($key)) { $key = array($key => $value); @@ -604,17 +584,10 @@ class CI_DB_postgre_driver extends CI_DB { foreach ($key as $k => $v) { - $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) + $prefix = (count($this->$qb_key) === 0 && count($this->$qb_cache_key) === 0) ? $this->_group_get_type('') : $this->_group_get_type($type); - if ($escape === TRUE) - { - $k = (($op = $this->_get_operator($k)) !== FALSE) - ? $this->escape_identifiers(trim(substr($k, 0, strpos($k, $op)))).' '.strstr($k, $op) - : $this->escape_identifiers(trim($k)); - } - if (is_null($v) && ! $this->_has_operator($k)) { // value appears not to have been set, assign the test to IS NULL @@ -623,13 +596,13 @@ class CI_DB_postgre_driver extends CI_DB { if ( ! is_null($v)) { - if ($escape === TRUE) + if (is_bool($v)) { - $v = ' '.$this->escape($v); + $v = ' '.($v ? 'TRUE' : 'FALSE'); } - elseif (is_bool($v)) + elseif ($escape === TRUE) { - $v = ($v ? ' TRUE' : ' FALSE'); + $v = ' '.(is_int($v) ? $v : $this->escape($v)); } if ( ! $this->_has_operator($k)) @@ -638,11 +611,11 @@ class CI_DB_postgre_driver extends CI_DB { } } - $this->qb_where[] = $prefix.$k.$v; + $this->{$qb_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape); if ($this->qb_caching === TRUE) { - $this->qb_cache_where[] = $prefix.$k.$v; - $this->qb_cache_exists[] = 'where'; + $this->{$qb_cache_key}[] = array('condition' => $prefix.$k.$v, 'escape' => $escape); + $this->qb_cache_exists[] = substr($qb_key, 3); } } diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php index 8bd18bd76..badbb8e90 100644 --- a/system/database/drivers/sqlsrv/sqlsrv_driver.php +++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php @@ -384,27 +384,13 @@ class CI_DB_sqlsrv_driver extends CI_DB { * * @param string the table name * @param array the update data - * @param array the where clause - * @param array the orderby clause (ignored) - * @param array the limit clause (ignored) - * @param array the like clause * @return string */ - protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array()) + protected function _update($table, $values) { - foreach ($values as $key => $val) - { - $valstr[] = $key.' = '.$val; - } - - $where = empty($where) ? '' : ' WHERE '.implode(' ', $where); - - if ( ! empty($like)) - { - $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like); - } - - return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where; + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); } // -------------------------------------------------------------------- @@ -433,23 +419,16 @@ class CI_DB_sqlsrv_driver extends CI_DB { * Generates a platform-specific delete string from the supplied data * * @param string the table name - * @param array the where clause - * @param array the like clause - * @param string the limit clause * @return string */ - protected function _delete($table, $where = array(), $like = array(), $limit = FALSE) + protected function _delete($table) { - $conditions = array(); - - empty($where) OR $conditions[] = implode(' ', $where); - empty($like) OR $conditions[] = implode(' ', $like); - - $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : ''; + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } - return ($limit) - ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete' - : 'DELETE FROM '.$table.$conditions; + return parent::_delete($table); } // -------------------------------------------------------------------- @@ -460,32 +439,30 @@ class CI_DB_sqlsrv_driver extends CI_DB { * Generates a platform-specific LIMIT clause * * @param string the sql query string - * @param int the number of rows to limit the query to - * @param int the offset value * @return string */ - protected function _limit($sql, $limit, $offset) + protected function _limit($sql) { // As of SQL Server 2012 (11.0.*) OFFSET is supported if (version_compare($this->version(), '11', '>=')) { - return $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY'; + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; } - $limit = $offset + $limit; + $limit = $this->qb_offset + $this->qb_limit; // An ORDER BY clause is required for ROW_NUMBER() to work - if ($offset && ! empty($this->qb_orderby)) + if ($this->qb_offset && ! empty($this->qb_orderby)) { - $orderby = 'ORDER BY '.implode(', ', $this->qb_orderby); + $orderby = $this->_compile_order_by(); // We have to strip the ORDER BY clause - $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby))); + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n" - .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) ."\n) ".$this->escape_identifiers('CI_subquery') - ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit; + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; } return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); |