How can I create complex WHERE closes in Zend\Db\Sql? Those with "COLLATE utf_general_ci" or "REGEXP". Also what is the way to feed it the query as a string I want?
Thank you!
An example of a full complex where clause would help but you can use Expression or Literal
Initiate Adapter
$adapter = new Zend\Db\Adapter\Adapter(array(
'driver' => 'Mysqli',
'database' => 'zend_db_example',
'username' => 'developer',
'password' => 'developer-password'
));
$sql = new Zend\Db\Sql\Sql($adapter);
$qi = function($name) use ($adapter) { return $adapter->platform->quoteIdentifier( $name ); };
$qv = function($name) use ($adapter) { return $adapter->platform->quoteValue( $name ); };
Literal
$regexSpecification = '(\\"key\\":\\"value\\")';
$sql->select()
->from('dbTable')
->where->literal( $qi('column1') . " REGEXP " . $qv($regexSpecification) )
->or->equalTo('column2', 'value');
//SELECT `dbTable`.* FROM `dbTable` WHERE `column1` REGEXP '(\"key\":\"value\")' OR `column2` = 'value'
Expression
$expression = new Zend\Db\Sql\Predicate\Expression( "SHA2(".$qi('column2').", 512)" );
$sql->select()
->from('dbTable')
->columns( array( 'hashed' => $expression ) )
->where( array( $qi('column1') . " COLLATE latin1_general_cs = " . $qv('value')));
//SELECT SHA2(`column2`, 512) AS `hashed` FROM `dbTable` WHERE `column1` COLLATE latin1_general_cs = 'value'
Adapter Executed Query
$adapter->query( 'ALTER TABLE ADD INDEX('. $qi('foo') .') ON ( '. $qi('foo_column') .' )', Zend\Db\Adapter\Adapter::QUERY_MODE_EXECUTE );
Referneces:
https://packages.zendframework.com/docs/latest/manual/en/modules/zend.db.adapter.html
https://packages.zendframework.com/docs/latest/manual/en/modules/zend.db.sql.html