diff options
Diffstat (limited to 'system/database/DB_driver.php')
| -rw-r--r-- | system/database/DB_driver.php | 48 |
1 files changed, 26 insertions, 22 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php index fdd99167f..5ea1fb8e1 100644 --- a/system/database/DB_driver.php +++ b/system/database/DB_driver.php @@ -456,9 +456,23 @@ abstract class CI_DB_driver { // -------------------------------------------------------------------- /** + * DB connect + * + * This is just a dummy method that all drivers will override. + * + * @return mixed + */ + public function db_connect() + { + return TRUE; + } + + // -------------------------------------------------------------------- + + /** * Persistent database connection * - * @return resource + * @return mixed */ public function db_pconnect() { @@ -1034,7 +1048,7 @@ abstract class CI_DB_driver { /** * Escape String * - * @param string|string[] $str + * @param string|string[] $str Input string * @param bool $like Whether or not the string will be used in a LIKE condition * @return string */ @@ -1102,10 +1116,10 @@ abstract class CI_DB_driver { * Retrieves the primary key. It assumes that the row in the first * position is the primary key * - * @param string the table name - * @return mixed + * @param string $table Table name + * @return string */ - public function primary($table = '') + public function primary($table) { $fields = $this->list_fields($table); return is_array($fields) ? current($fields) : FALSE; @@ -1146,7 +1160,7 @@ abstract class CI_DB_driver { * Returns an array of table names * * @param string $constrain_by_prefix = FALSE - * @return mixed + * @return array */ public function list_tables($constrain_by_prefix = FALSE) { @@ -1214,9 +1228,9 @@ abstract class CI_DB_driver { * Fetch Field Names * * @param string the table name - * @return mixed + * @return array */ - public function list_fields($table = '') + public function list_fields($table) { // Is there a cached result? if (isset($this->data_cache['field_names'][$table])) @@ -1224,11 +1238,6 @@ abstract class CI_DB_driver { return $this->data_cache['field_names'][$table]; } - if ($table === '') - { - return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE; - } - if (FALSE === ($sql = $this->_list_columns($table))) { return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; @@ -1282,18 +1291,13 @@ abstract class CI_DB_driver { /** * Returns an object with field data * - * @param string the table name - * @return object + * @param string $table the table name + * @return array */ - public function field_data($table = '') + public function field_data($table) { - if ($table === '') - { - return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE; - } - $query = $this->query($this->_field_data($this->protect_identifiers($table, TRUE, NULL, FALSE))); - return $query->field_data(); + return ($query) ? $query->field_data() : FALSE; } // -------------------------------------------------------------------- |