SelectQuery::preExecute
public function SelectQuery::preExecute
public SelectQuery::preExecute(SelectQueryInterface $query = NULL)
Generic preparation and validation for a SELECT query.
Return value
TRUE if the validation was successful, FALSE if not.
Overrides SelectQueryInterface::preExecute
File
- includes/database/select.inc, line 1221
Class
- SelectQuery
- Query builder for SELECT statements.
Code
public function preExecute(SelectQueryInterface $query = NULL) { // If no query object is passed in, use $this. if (!isset($query)) { $query = $this; } // Only execute this once. if ($query->isPrepared()) { return TRUE; } // Modules may alter all queries or only those having a particular tag. if (isset($this->alterTags)) { $hooks = array('query'); foreach ($this->alterTags as $tag => $value) { $hooks[] = 'query_' . $tag; } drupal_alter($hooks, $query); } $this->prepared = TRUE; // Now also prepare any sub-queries. foreach ($this->tables as $table) { if ($table['table'] instanceof SelectQueryInterface) { $table['table']->preExecute(); } } foreach ($this->union as $union) { $union['query']->preExecute(); } return $this->prepared; }
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https://api.drupal.org/api/drupal/includes!database!select.inc/function/SelectQuery::preExecute/7.x