diff options
Diffstat (limited to 'system/database/drivers/sqlite/sqlite_forge.php')
| -rw-r--r-- | system/database/drivers/sqlite/sqlite_forge.php | 91 |
1 files changed, 27 insertions, 64 deletions
diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php index 35be1b74b..f8cfdf3ba 100644 --- a/system/database/drivers/sqlite/sqlite_forge.php +++ b/system/database/drivers/sqlite/sqlite_forge.php @@ -97,41 +97,31 @@ class CI_DB_sqlite_forge extends CI_DB_forge { // entered the field information, so we'll simply add it to the list if (is_numeric($field)) { - $sql .= "\n\t$attributes"; + $sql .= "\n\t".$attributes; } else { $attributes = array_change_key_case($attributes, CASE_UPPER); - $sql .= "\n\t".$this->db->protect_identifiers($field); + $sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE']; - $sql .= ' '.$attributes['TYPE']; + empty($attributes['CONSTRAINT']) OR $sql .= '('.$attributes['CONSTRAINT'].')'; - if (array_key_exists('CONSTRAINT', $attributes)) - { - $sql .= '('.$attributes['CONSTRAINT'].')'; - } - - if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE) + if ( ! empty($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE) { $sql .= ' UNSIGNED'; } - if (array_key_exists('DEFAULT', $attributes)) + if (isset($attributes['DEFAULT'])) { - $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\''; + $sql .= " DEFAULT '".$attributes['DEFAULT']."'"; } - if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE) + $sql .= ( ! empty($attributes['NULL']) && $attributes['NULL'] === TRUE) + ? ' NULL' : ' NOT NULL'; + + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) { $sql .= ' AUTO_INCREMENT'; } @@ -146,30 +136,22 @@ class CI_DB_sqlite_forge extends CI_DB_forge { if (count($primary_keys) > 0) { - $primary_keys = $this->db->protect_identifiers($primary_keys); - $sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")"; + $sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')'; } if (is_array($keys) && count($keys) > 0) { foreach ($keys as $key) { - if (is_array($key)) - { - $key = $this->db->protect_identifiers($key); - } - else - { - $key = array($this->db->protect_identifiers($key)); - } + $key = is_array($key) + ? $this->db->escape_identifiers($key) + : array($this->db->escape_identifiers($key); - $sql .= ",\n\tUNIQUE (" . implode(', ', $key) . ")"; + $sql .= ",\n\tUNIQUE (".implode(', ', $key).')'; } } - $sql .= "\n)"; - - return $sql; + return $sql."\n)"; } // -------------------------------------------------------------------- @@ -191,40 +173,21 @@ class CI_DB_sqlite_forge extends CI_DB_forge { */ protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '') { - $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name); - - // DROP has everything it needs now. - if ($alter_type === 'DROP') + /* SQLite only supports adding new columns and it does + * NOT support the AFTER statement. Each new column will + * be added as the last one in the table. + */ + if ($alter_type !== 'ADD COLUMN') { - // SQLite does not support dropping columns - // http://www.sqlite.org/omitted.html - // http://www.sqlite.org/faq.html#q11 + // Not supported return FALSE; } - $sql .= " $column_definition"; - - if ($default_value !== '') - { - $sql .= " DEFAULT \"$default_value\""; - } - - if ($null === NULL) - { - $sql .= ' NULL'; - } - else - { - $sql .= ' NOT NULL'; - } - - if ($after_field !== '') - { - return $sql.' AFTER '.$this->db->protect_identifiers($after_field); - } - - return $sql; - + return 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name) + .' '.$column_definition + .($default_value != '' ? " DEFAULT '".$default_value."'" : '') + // If NOT NULL is specified, the field must have a DEFAULT value other than NULL + .(($null !== NULL && $default_value !== 'NULL') ? ' NOT NULL' : ' NULL'); } } |