diff options
| -rw-r--r-- | system/database/DB_utility.php | 3 | ||||
| -rw-r--r-- | system/database/drivers/mysql/mysql_utility.php | 13 | ||||
| -rw-r--r-- | system/database/drivers/mysqli/mysqli_utility.php | 13 | ||||
| -rw-r--r-- | user_guide_src/source/database/utilities.rst | 27 |
4 files changed, 42 insertions, 14 deletions
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php index c4140aef3..3ed75967e 100644 --- a/system/database/DB_utility.php +++ b/system/database/DB_utility.php @@ -326,7 +326,8 @@ abstract class CI_DB_utility { 'format' => 'gzip', // gzip, zip, txt 'add_drop' => TRUE, 'add_insert' => TRUE, - 'newline' => "\n" + 'newline' => "\n", + 'fk_checks' => TRUE ); // Did the user submit any preferences? If so set them.... diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php index 8aa051755..e2de82d0b 100644 --- a/system/database/drivers/mysql/mysql_utility.php +++ b/system/database/drivers/mysql/mysql_utility.php @@ -76,6 +76,13 @@ class CI_DB_mysql_utility extends CI_DB_utility { // Build the output $output = ''; + + // Do we need to include a statement to disable FK checks? + if ($fk_checks === FALSE) + { + $output .= "SET foreign_key_checks = 0;".$newline; + } + foreach ( (array) $tables as $table) { // Is the table in the "ignore" list? @@ -181,6 +188,12 @@ class CI_DB_mysql_utility extends CI_DB_utility { $output .= $newline.$newline; } + // Do we need to include a statement to re-enable FK checks? + if ($fk_checks === FALSE) + { + $output .= "SET foreign_key_checks = 1;".$newline; + } + return $output; } diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php index 345691e84..ff4949046 100644 --- a/system/database/drivers/mysqli/mysqli_utility.php +++ b/system/database/drivers/mysqli/mysqli_utility.php @@ -76,6 +76,13 @@ class CI_DB_mysqli_utility extends CI_DB_utility { // Build the output $output = ''; + + // Do we need to include a statement to disable FK checks? + if ($fk_checks === FALSE) + { + $output .= "SET foreign_key_checks = 0;".$newline; + } + foreach ( (array) $tables as $table) { // Is the table in the "ignore" list? @@ -181,6 +188,12 @@ class CI_DB_mysqli_utility extends CI_DB_utility { $output .= $newline.$newline; } + // Do we need to include a statement to re-enable FK checks? + if ($fk_checks === FALSE) + { + $output .= "SET foreign_key_checks = 1;".$newline; + } + return $output; } diff --git a/user_guide_src/source/database/utilities.rst b/user_guide_src/source/database/utilities.rst index 06ecb2da1..1631066fe 100644 --- a/user_guide_src/source/database/utilities.rst +++ b/user_guide_src/source/database/utilities.rst @@ -45,7 +45,7 @@ $this->dbutil->list_databases(); Returns an array of database names:: $dbs = $this->dbutil->list_databases(); - + foreach ($dbs as $db) { echo $db; @@ -102,7 +102,7 @@ FALSE on failure. :: $result = $this->dbutil->optimize_database(); - + if ($result !== FALSE) { print_r($result); @@ -119,9 +119,9 @@ parameter of the method must contain the result object from your query. Example:: $this->load->dbutil(); - + $query = $this->db->query("SELECT * FROM mytable"); - + echo $this->dbutil->csv_from_result($query); The second, third, and fourth parameters allow you to set the delimiter @@ -147,16 +147,16 @@ parameter expects a query result object, the second may contain an optional array of config parameters. Example:: $this->load->dbutil(); - + $query = $this->db->query("SELECT * FROM mytable"); - + $config = array ( 'root' => 'root', 'element' => 'element', 'newline' => "\n", - 'tab' => "\t" + 'tab' => "\t" ); - + echo $this->dbutil->xml_from_result($query, $config); .. important:: This method will NOT write the XML file for you. It @@ -172,7 +172,7 @@ backup data can be compressed in either Zip or Gzip format. .. note:: This feature is only available for MySQL and Interbase/Firebird databases. .. note:: For Interbase/Firebird databases, the backup file name is the only parameter. - + Eg. $this->dbutil->backup('db_backup_filename'); .. note:: Due to the limited execution time and memory available to PHP, @@ -188,14 +188,14 @@ Usage Example // Load the DB utility class $this->load->dbutil(); - + // Backup your entire database and assign it to a variable $backup =& $this->dbutil->backup(); - + // Load the file helper and write the file to your server $this->load->helper('file'); write_file('/path/to/mybackup.gz', $backup); - + // Load the download helper and send the file to your desktop $this->load->helper('download'); force_download('mybackup.gz', $backup); @@ -215,7 +215,7 @@ parameter of the ``backup()`` method. Example:: 'add_insert' => TRUE, // Whether to add INSERT data to backup file 'newline' => "\n" // Newline character used in backup file ); - + $this->dbutil->backup($prefs); Description of Backup Preferences @@ -233,4 +233,5 @@ Preference Default Value Options Description **add_drop** TRUE TRUE/FALSE Whether to include DROP TABLE statements in your SQL export file. **add_insert** TRUE TRUE/FALSE Whether to include INSERT statements in your SQL export file. **newline** "\\n" "\\n", "\\r", "\\r\\n" Type of newline to use in your SQL export file. +**fk_checks** TRUE TRUE/FALSE Whether output should keep foreign key checks enabled. =============== ======================= ======================= ========================================================================
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