function Sql::add_where in Views (for Drupal 7) 8.3

Add a simple WHERE clause to the query. The caller is responsible for ensuring that all fields are fully qualified (TABLE.FIELD) and that the table already exists in the query.

$this->query
  ->add_where($this->options['group'], db_or()
  ->condition($field, $value, 'NOT IN')
  ->condition($field, $value, 'IS NULL'));

Parameters

$group: The WHERE group to add these to; groups are used to create AND/OR sections. Groups cannot be nested. Use 0 as the default group. If the group does not yet exist it will be created as an AND group.

$field: The name of the field to check.

$value: The value to test the field against. In most cases, this is a scalar. For more complex options, it is an array. The meaning of each element in the array is dependent on the $operator.

$operator: The comparison operator, such as =, <, or >=. It also accepts more complex options such as IN, LIKE, or BETWEEN. Defaults to IN if $value is an array = otherwise. If $field is a string you have to use 'formula' here.

The $field, $value and $operator arguments can also be passed in with a single DatabaseCondition object, like this:

See also

Drupal\Core\Database\Query\ConditionInterface::condition()

Drupal\Core\Database\Query\Condition

File

lib/Drupal/views/Plugin/views/query/Sql.php, line 834

Definition of Drupal\views\Plugin\views\query\Sql.

Class

Sql

@todo.

Namespace

Drupal\views\Plugin\views\query

Code

function add_where($group, $field, $value = NULL, $operator = NULL) {

  // Ensure all variants of 0 are actually 0. Thus '', 0 and NULL are all
  // the default group.
  if (empty($group)) {
    $group = 0;
  }

  // Check for a group.
  if (!isset($this->where[$group])) {
    $this
      ->set_where_group('AND', $group);
  }
  $this->where[$group]['conditions'][] = array(
    'field' => $field,
    'value' => $value,
    'operator' => $operator,
  );
}