protected 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
File
- core/lib/Drupal/Core/Database/Query/Insert.php, line 143
Class
- Insert
- General class for an abstracted INSERT query.
Namespace
Drupal\Core\Database\Query
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | 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;} |
Please login to continue.