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wpdb::flush() was not flushing results correctly when using mysqli.

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This change also allows stored procedures or queries made with `mysqli_multi_query()` to be flushed.

Includes unit tests.

Fixes #28155.

Props soulseekah.


git-svn-id: https://develop.svn.wordpress.org/trunk@30297 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Gary Pendergast 2014-11-10 05:39:50 +00:00
parent c8340a2cda
commit 4b1aa89206
2 changed files with 41 additions and 5 deletions
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14
src/wp-includes/wp-db.php
View File

@ -1322,12 +1322,16 @@ class wpdb {
$this->rows_affected = $this->num_rows = 0;
$this->last_error = '';
if ( is_resource( $this->result ) ) {
if ( $this->use_mysqli ) {
mysqli_free_result( $this->result );
} else {
mysql_free_result( $this->result );
if ( $this->use_mysqli && $this->result instanceof mysqli_result ) {
mysqli_free_result( $this->result );
$this->result = null;
// Clear out any results from a multi-query
while ( mysqli_more_results( $this->dbh ) ) {
mysqli_next_result( $this->dbh );
}
} else if ( is_resource( $this->result ) ) {
mysql_free_result( $this->result );
}
}

32
tests/phpunit/tests/db.php
View File

@ -458,4 +458,36 @@ class Tests_DB extends WP_UnitTestCase {
$this->assertEquals( $expected2, $wpdb->last_query );
$wpdb->suppress_errors( $suppress );
}
/**
* mysqli_ incorrect flush and further sync issues.
*
* @ticket 28155
*/
function test_mysqli_flush_sync() {
global $wpdb;
if ( ! $wpdb->use_mysqli ) {
$this->markTestSkipped( 'mysqli not being used' );
}
$suppress = $wpdb->suppress_errors( true );
$wpdb->query( 'DROP PROCEDURE IF EXISTS `test_mysqli_flush_sync_procedure`' );
$wpdb->query( 'CREATE PROCEDURE `test_mysqli_flush_sync_procedure`() BEGIN
SELECT ID FROM `' . $wpdb->posts . '` LIMIT 1;
END' );
if ( count( $wpdb->get_results( 'SHOW CREATE PROCEDURE `test_mysqli_flush_sync_procedure`' ) ) < 1 ) {
$wpdb->suppress_errors( $suppress );
$this->markTestSkipped( 'procedure could not be created (missing privileges?)' );
}
$this->factory->post->create();
$this->assertNotEmpty( $wpdb->get_results( 'CALL `test_mysqli_flush_sync_procedure`' ) );
$this->assertNotEmpty( $wpdb->get_results( "SELECT ID FROM `{$wpdb->posts}` LIMIT 1" ) );
$wpdb->query( 'DROP PROCEDURE IF EXISTS `test_mysqli_flush_sync_procedure`' );
$wpdb->suppress_errors( $suppress );
}
}