public TablesInterface::addField($field, $type, $langcode)
Adds a field to a database query.
Parameters
string $field: If it doesn't contain a dot, then an entity base field name. If it contains a dot, then either field name dot field column or field name dot delta dot field column. Delta can be a numeric value or a "%delta" for any value.
string $type: Join type, can either be INNER or LEFT.
string $langcode: The language code the field values are to be queried in.
Return value
string The return value is a string containing the alias of the table, a dot and the appropriate SQL column as passed in. This allows the direct use of this in a query for a condition or sort.
Throws
\Drupal\Core\Entity\Query\QueryException If $field specifies an invalid relationship.
File
- core/lib/Drupal/Core/Entity/Query/Sql/TablesInterface.php, line 31
Class
- TablesInterface
- Adds tables and fields to the SQL entity query.
Namespace
Drupal\Core\Entity\Query\Sql
Code
public function addField($field, $type, $langcode);
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