diff options
author | admin <devnull@localhost> | 2006-09-24 22:28:33 +0200 |
---|---|---|
committer | admin <devnull@localhost> | 2006-09-24 22:28:33 +0200 |
commit | c9a8bab572388bbba541f1cf8f12a46e2103e447 (patch) | |
tree | 15f95204fd90c22aeaa253507ffc979048123b54 /system/database | |
parent | ac94f38e9f501721d3148c94b3962a529f646e20 (diff) |
Diffstat (limited to 'system/database')
-rw-r--r-- | system/database/DB_active_record.php | 875 |
1 files changed, 0 insertions, 875 deletions
diff --git a/system/database/DB_active_record.php b/system/database/DB_active_record.php deleted file mode 100644 index c038185bc..000000000 --- a/system/database/DB_active_record.php +++ /dev/null @@ -1,875 +0,0 @@ -<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); -/** - * Code Igniter - * - * An open source application development framework for PHP 4.3.2 or newer - * - * @package CodeIgniter - * @author Rick Ellis - * @copyright Copyright (c) 2006, pMachine, Inc. - * @license http://www.codeignitor.com/user_guide/license.html - * @link http://www.codeigniter.com - * @since Version 1.0 - * @filesource - */ - -// ------------------------------------------------------------------------ - -/** - * Active Record Class - * - * This is the platform-independent base Active Record implementation class. - * - * @package CodeIgniter - * @subpackage Drivers - * @category Database - * @author Rick Ellis - * @link http://www.codeigniter.com/user_guide/database/ - */ -class CI_DB_active_record extends CI_DB_driver { - - var $ar_select = array(); - var $ar_distinct = FALSE; - var $ar_from = array(); - var $ar_join = array(); - var $ar_where = array(); - var $ar_like = array(); - var $ar_groupby = array(); - var $ar_having = array(); - var $ar_limit = FALSE; - var $ar_offset = FALSE; - var $ar_order = FALSE; - var $ar_orderby = array(); - var $ar_set = array(); - - - /** - * Select - * - * Generates the SELECT portion of the query - * - * @access public - * @param string - * @return object - */ - function select($select = '*') - { - if (is_string($select)) - { - $select = explode(',', $select); - } - - foreach ($select as $val) - { - $val = trim($val); - - if ($val != '') - $this->ar_select[] = $val; - } - return $this; - } - - // -------------------------------------------------------------------- - - /** - * DISTINCT - * - * Sets a flag which tells the query string compiler to add DISTINCT - * - * @access public - * @param bool - * @return object - */ - function distinct($val = TRUE) - { - $this->ar_distinct = (is_bool($val)) ? $val : TRUE; - return $this; - } - - // -------------------------------------------------------------------- - - /** - * From - * - * Generates the FROM portion of the query - * - * @access public - * @param mixed can be a string or array - * @return object - */ - function from($from) - { - foreach ((array)$from as $val) - { - $this->ar_from[] = $this->dbprefix.$val; - } - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Join - * - * Generates the JOIN portion of the query - * - * @access public - * @param string - * @param string the join condition - * @param string the type of join - * @return object - */ - function join($table, $cond, $type = '') - { - if ($type != '') - { - $type = strtoupper(trim($type)); - - if ( ! in_array($type, array('LEFT', 'RIGHT', 'OUTER', 'INNER', 'LEFT OUTER', 'RIGHT OUTER'))) - { - $type = ''; - } - else - { - $type .= ' '; - } - } - - $this->ar_join[] = $type.'JOIN '.$table.' ON '.$cond; - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Where - * - * Generates the WHERE portion of the query. Separates - * multiple calls with AND - * - * @access public - * @param mixed - * @param mixed - * @return object - */ - function where($key, $value = NULL) - { - return $this->_where($key, $value, 'AND '); - } - - // -------------------------------------------------------------------- - - /** - * OR Where - * - * Generates the WHERE portion of the query. Separates - * multiple calls with OR - * - * @access public - * @param mixed - * @param mixed - * @return object - */ - function orwhere($key, $value = NULL) - { - return $this->_where($key, $value, 'OR '); - } - - // -------------------------------------------------------------------- - - /** - * Where - * - * Called by where() or orwhere() - * - * @access private - * @param mixed - * @param mixed - * @param string - * @return object - */ - function _where($key, $value = NULL, $type = 'AND ') - { - if ( ! is_array($key)) - { - $key = array($key => $value); - } - - foreach ($key as $k => $v) - { - $prefix = (count($this->ar_where) == 0) ? '' : $type; - - if ( ! is_null($v)) - { - if ( ! $this->_has_operator($k)) - { - $k .= ' ='; - } - - $v = ' '.$this->escape($v); - } - - $this->ar_where[] = $prefix.$k.$v; - } - return $this; - } - - - - // -------------------------------------------------------------------- - - /** - * Like - * - * Generates a %LIKE% portion of the query. Separates - * multiple calls with AND - * - * @access public - * @param mixed - * @param mixed - * @return object - */ - function like($field, $match = '') - { - return $this->_like($field, $match, 'AND '); - } - - // -------------------------------------------------------------------- - - /** - * OR Like - * - * Generates a %LIKE% portion of the query. Separates - * multiple calls with OR - * - * @access public - * @param mixed - * @param mixed - * @return object - */ - function orlike($field, $match = '') - { - return $this->_like($field, $match, 'OR '); - } - - // -------------------------------------------------------------------- - - /** - * Like - * - * Called by like() or orlike() - * - * @access private - * @param mixed - * @param mixed - * @param string - * @return object - */ - function _like($field, $match = '', $type = 'AND ') - { - if ( ! is_array($field)) - { - $field = array($field => $match); - } - - foreach ($field as $k => $v) - { - $prefix = (count($this->ar_like) == 0) ? '' : $type; - - $v = $this->escape_str($v); - - $this->ar_like[] = $prefix." $k LIKE '%{$v}%'"; - } - return $this; - } - - // -------------------------------------------------------------------- - - /** - * GROUP BY - * - * @access public - * @param string - * @return object - */ - function groupby($by) - { - if (is_string($by)) - { - $by = explode(',', $by); - } - - foreach ($by as $val) - { - $val = trim($val); - - if ($val != '') - $this->ar_groupby[] = $val; - } - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Sets the HAVING value - * - * Separates multiple calls with AND - * - * @access public - * @param string - * @param string - * @return object - */ - function having($key, $value = '') - { - return $this->_having($key, $value, 'AND '); - } - - // -------------------------------------------------------------------- - - /** - * Sets the OR HAVING value - * - * Separates multiple calls with OR - * - * @access public - * @param string - * @param string - * @return object - */ - function orhaving($key, $value = '') - { - return $this->_having($key, $value, 'OR '); - } - - // -------------------------------------------------------------------- - - /** - * Sets the HAVING values - * - * Called by having() or orhaving() - * - * @access private - * @param string - * @param string - * @return object - */ - function _having($key, $value = '', $type = 'AND ') - { - if ( ! is_array($key)) - { - $key = array($key => $value); - } - - foreach ($key as $k => $v) - { - $prefix = (count($this->ar_having) == 0) ? '' : $type; - - if ($v != '') - { - $v = ' '.$this->escape($v); - } - - $this->ar_having[] = $prefix.$k.$v; - } - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Sets the ORDER BY value - * - * @access public - * @param string - * @param string direction: asc or desc - * @return object - */ - function orderby($orderby, $direction = '') - { - if (trim($direction) != '') - { - $direction = (in_array(strtoupper(trim($direction)), array('ASC', 'DESC', 'RAND()'))) ? ' '.$direction : ' ASC'; - } - - $this->ar_orderby[] = $orderby.$direction; - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Sets the LIMIT value - * - * @access public - * @param integer the limit value - * @param integer the offset value - * @return object - */ - function limit($value, $offset = '') - { - $this->ar_limit = $value; - - if ($offset != '') - $this->ar_offset = $offset; - - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Sets the OFFSET value - * - * @access public - * @param integer the offset value - * @return object - */ - function offset($value) - { - $this->ar_offset = $value; - return $this; - } - - // -------------------------------------------------------------------- - - /** - * The "set" function. Allows key/value pairs to be set for inserting or updating - * - * @access public - * @param mixed - * @param string - * @return object - */ - function set($key, $value = '') - { - $key = $this->_object_to_array($key); - - if ( ! is_array($key)) - { - $key = array($key => $value); - } - - foreach ($key as $k => $v) - { - $this->ar_set[$k] = $this->escape($v); - } - - return $this; - } - - // -------------------------------------------------------------------- - - /** - * Get - * - * Compiles the select statement based on the other functions called - * and runs the query - * - * @access public - * @param string the limit clause - * @param string the offset clause - * @return object - */ - function get($table = '', $limit = null, $offset = null) - { - if ($table != '') - { - $this->from($table); - } - - if ( ! is_null($limit)) - { - $this->limit($limit, $offset); - } - - $sql = $this->_compile_select(); - - $this->_reset_select(); - return $this->query($sql); - } - - // -------------------------------------------------------------------- - - /** - * GetWhere - * - * Allows the where clause, limit and offset to be added directly - * - * @access public - * @param string the where clause - * @param string the limit clause - * @param string the offset clause - * @return object - */ - function getwhere($table = '', $where = null, $limit = null, $offset = null) - { - if ($table != '') - { - $this->from($table); - } - - if ( ! is_null($where)) - { - $this->where($where); - } - - if ( ! is_null($limit)) - { - $this->limit($limit, $offset); - } - - $sql = $this->_compile_select(); - - $this->_reset_select(); - return $this->query($sql); - } - - // -------------------------------------------------------------------- - - /** - * Insert - * - * Compiles an insert string and runs the query - * - * @access public - * @param string the table to retrieve the results from - * @param array an associative array of insert values - * @return object - */ - function insert($table = '', $set = NULL) - { - if ( ! is_null($set)) - { - $this->set($set); - } - - if (count($this->ar_set) == 0) - { - if ($this->db_debug) - { - return $this->display_error('db_must_use_set'); - } - return FALSE; - } - - if ($table == '') - { - if ( ! isset($this->ar_from[0])) - { - if ($this->db_debug) - { - return $this->display_error('db_must_set_table'); - } - return FALSE; - } - - $table = $this->ar_from[0]; - } - - $sql = $this->_insert($this->dbprefix.$table, array_keys($this->ar_set), array_values($this->ar_set)); - - $this->_reset_write(); - return $this->query($sql); - } - - // -------------------------------------------------------------------- - - /** - * Update - * - * Compiles an update string and runs the query - * - * @access public - * @param string the table to retrieve the results from - * @param array an associative array of update values - * @param mixed the where clause - * @return object - */ - function update($table = '', $set = NULL, $where = null) - { - if ( ! is_null($set)) - { - $this->set($set); - } - - if (count($this->ar_set) == 0) - { - if ($this->db_debug) - { - return $this->display_error('db_must_use_set'); - } - return FALSE; - } - - if ($table == '') - { - if ( ! isset($this->ar_from[0])) - { - if ($this->db_debug) - { - return $this->display_error('db_must_set_table'); - } - return FALSE; - } - - $table = $this->ar_from[0]; - } - - if ($where != null) - { - $this->where($where); - } - - $sql = $this->_update($this->dbprefix.$table, $this->ar_set, $this->ar_where); - - $this->_reset_write(); - return $this->query($sql); - } - - // -------------------------------------------------------------------- - - /** - * Delete - * - * Compiles a delete string and runs the query - * - * @access public - * @param string the table to retrieve the results from - * @param mixed the where clause - * @return object - */ - function delete($table = '', $where = '') - { - if ($table == '') - { - if ( ! isset($this->ar_from[0])) - { - if ($this->db_debug) - { - return $this->display_error('db_must_set_table'); - } - return FALSE; - } - - $table = $this->ar_from[0]; - } - - if ($where != '') - { - $this->where($where); - } - - if (count($this->ar_where) == 0) - { - if ($this->db_debug) - { - return $this->display_error('db_del_must_use_where'); - } - return FALSE; - } - - $sql = $this->_delete($this->dbprefix.$table, $this->ar_where); - - $this->_reset_write(); - return $this->query($sql); - } - - // -------------------------------------------------------------------- - - /** - * Use Table - DEPRECATED - * - * @deprecated use $this->db->from instead - */ - function use_table($table) - { - return $this->from($table); - return $this; - } - - // -------------------------------------------------------------------- - - /** - * ORDER BY - DEPRECATED - * - * @deprecated use $this->db->orderby() instead - */ - function order_by($orderby, $direction = '') - { - return $this->orderby($orderby, $direction); - } - - // -------------------------------------------------------------------- - - /** - * Tests whether the string has an SQL operator - * - * @access private - * @param string - * @return bool - */ - function _has_operator($str) - { - $str = trim($str); - if ( ! preg_match("/(\s|<|>|!|=|is null|is not null)/i", $str)) - { - return FALSE; - } - - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Compile the SELECT statement - * - * Generates a query string based on which functions were used. - * Should not be called directly. The get() function calls it. - * - * @access private - * @return string - */ - function _compile_select() - { - $sql = ( ! $this->ar_distinct) ? 'SELECT ' : 'SELECT DISTINCT '; - - $sql .= (count($this->ar_select) == 0) ? '*' : implode(', ', $this->ar_select); - - if (count($this->ar_from) > 0) - { - $sql .= "\nFROM "; - $sql .= implode(', ', $this->ar_from); - } - - if (count($this->ar_join) > 0) - { - $sql .= "\n"; - $sql .= implode("\n", $this->ar_join); - } - - if (count($this->ar_where) > 0 OR count($this->ar_like) > 0) - { - $sql .= "\nWHERE "; - } - - $sql .= implode("\n", $this->ar_where); - - if (count($this->ar_like) > 0) - { - if (count($this->ar_where) > 0) - { - $sql .= " AND "; - } - - $sql .= implode("\n", $this->ar_like); - } - - if (count($this->ar_groupby) > 0) - { - $sql .= "\nGROUP BY "; - $sql .= implode(', ', $this->ar_groupby); - } - - if (count($this->ar_having) > 0) - { - $sql .= "\nHAVING "; - $sql .= implode("\n", $this->ar_having); - } - - if (count($this->ar_orderby) > 0) - { - $sql .= "\nORDER BY "; - $sql .= implode(', ', $this->ar_orderby); - - if ($this->ar_order !== FALSE) - { - $sql .= ($this->ar_order == 'desc') ? ' DESC' : ' ASC'; - } - } - - if (is_numeric($this->ar_limit)) - { - $sql .= "\n"; - $sql = $this->_limit($sql, $this->ar_limit, $this->ar_offset); - } - - return $sql; - } - - // -------------------------------------------------------------------- - - /** - * Object to Array - * - * Takes an object as input and convers the class variables to array key/vals - * - * @access public - * @param object - * @return array - */ - function _object_to_array($object) - { - if ( ! is_object($object)) - { - return $object; - } - - $array = array(); - foreach (get_object_vars($object) as $key => $val) - { - if ( ! is_object($val) AND ! is_array($val)) - { - $array[$key] = $val; - } - } - - return $array; - } - - // -------------------------------------------------------------------- - - /** - * Resets the active record values. Called by the get() function - * - * @access private - * @return void - */ - function _reset_select() - { - $this->ar_select = array(); - $this->ar_distinct = FALSE; - $this->ar_from = array(); - $this->ar_join = array(); - $this->ar_where = array(); - $this->ar_like = array(); - $this->ar_groupby = array(); - $this->ar_having = array(); - $this->ar_limit = FALSE; - $this->ar_offset = FALSE; - $this->ar_order = FALSE; - $this->ar_orderby = array(); - } - - // -------------------------------------------------------------------- - - /** - * Resets the active record "write" values. - * - * Called by the insert() or update() functions - * - * @access private - * @return void - */ - function _reset_write() - { - $this->ar_set = array(); - $this->ar_from = array(); - $this->ar_where = array(); - } - -} - -?>
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