protected Upsert::preExecute()
Preprocesses and validates the query.
Return value
bool TRUE if the validation was successful, FALSE otherwise.
Throws
\Drupal\Core\Database\Query\NoUniqueFieldException
\Drupal\Core\Database\Query\FieldsOverlapException
\Drupal\Core\Database\Query\NoFieldsException
File
- core/lib/Drupal/Core/Database/Query/Upsert.php, line 67
Class
- Upsert
- General class for an abstracted "Upsert" (UPDATE or INSERT) query operation.
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 | protected function preExecute() { // Confirm that the user set the unique/primary key of the table. if (!$this->key) { throw new NoUniqueFieldException('There is no unique field specified.'); } // Confirm that the user did not try to specify an identical // field and default field. if (array_intersect($this->insertFields, $this->defaultFields)) { throw new FieldsOverlapException('You may not specify the same field to have a value and a schema-default value.'); } // Don't execute query without fields. if (count($this->insertFields) + count($this->defaultFields) == 0) { throw new NoFieldsException('There are no fields available to insert with.'); } // If no values have been added, silently ignore this query. This can happen // if values are added conditionally, so we don't want to throw an // exception. return isset($this->insertValues[0]) || $this->insertFields;} |
Please login to continue.