function Insert::preExecute
Same name in other branches
- 9 core/lib/Drupal/Core/Database/Query/Insert.php \Drupal\Core\Database\Query\Insert::preExecute()
- 8.9.x core/lib/Drupal/Core/Database/Query/Insert.php \Drupal\Core\Database\Query\Insert::preExecute()
- 10 core/lib/Drupal/Core/Database/Query/Insert.php \Drupal\Core\Database\Query\Insert::preExecute()
Preprocesses and validates the query.
Return value
bool TRUE if the validation was successful, FALSE if not.
Throws
\Drupal\Core\Database\Query\FieldsOverlapException
\Drupal\Core\Database\Query\NoFieldsException
4 calls to Insert::preExecute()
- Insert::execute in core/
lib/ Drupal/ Core/ Database/ Query/ Insert.php - Executes the insert query.
- Insert::execute in core/
modules/ pgsql/ src/ Driver/ Database/ pgsql/ Insert.php - Executes the insert query.
- Insert::execute in core/
modules/ sqlite/ src/ Driver/ Database/ sqlite/ Insert.php - Executes the insert query.
- Insert::execute in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ Insert.php - Executes the insert query.
File
-
core/
lib/ Drupal/ Core/ Database/ Query/ Insert.php, line 141
Class
- Insert
- General class for an abstracted INSERT query.
Namespace
Drupal\Core\Database\QueryCode
protected function preExecute() {
// Confirm that the user did not try to specify an identical
// field and default field.
if (array_intersect($this->insertFields, $this->defaultFields)) {
throw new FieldsOverlapException('You may not specify the same field to have a value and a schema-default value.');
}
if (!empty($this->fromQuery)) {
// We have to assume that the used aliases match the insert fields.
// Regular fields are added to the query before expressions, maintain the
// same order for the insert fields.
// This behavior can be overridden by calling fields() manually as only the
// first call to fields() does have an effect.
$this->fields(array_merge(array_keys($this->fromQuery
->getFields()), array_keys($this->fromQuery
->getExpressions())));
}
else {
// Don't execute query without fields.
if (count($this->insertFields) + count($this->defaultFields) == 0) {
throw new NoFieldsException('There are no fields available to insert with.');
}
}
// If no values have been added, silently ignore this query. This can happen
// if values are added conditionally, so we don't want to throw an
// exception.
if (!isset($this->insertValues[0]) && count($this->insertFields) > 0 && empty($this->fromQuery)) {
return FALSE;
}
return TRUE;
}
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