function Sql::buildCondition

Construct the "WHERE" or "HAVING" part of the query.

As views has to wrap the conditions from arguments with AND, a special group is wrapped around all conditions. This special group has the ID 0. There is other code in filters which makes sure that the group IDs are higher than zero.

Parameters

$where: 'where' or 'having'.

1 call to Sql::buildCondition()

Sql::query in core/modules/views/src/Plugin/views/query/Sql.php

Generates a query and count query from all of the information supplied.

File

core/modules/views/src/Plugin/views/query/Sql.php, line 1156

Class

Sql

Views query plugin for an SQL query.

Namespace

Drupal\views\Plugin\views\query

Code

protected function buildCondition($where = 'where') {
    $has_condition = FALSE;
    $has_arguments = FALSE;
    $has_filter = FALSE;
    
    /** @var \Drupal\Core\Database\Connection $connection */
    $connection = $this->getConnection();
    $main_group = $connection->condition('AND');
    $filter_group = $this->groupOperator == 'OR' ? $connection->condition('OR') : $connection->condition('AND');
    foreach ($this->{$where} as $group => $info) {
        if (!empty($info['conditions'])) {
            $sub_group = $info['type'] == 'OR' ? $connection->condition('OR') : $connection->condition('AND');
            foreach ($info['conditions'] as $clause) {
                if ($clause['operator'] == 'formula') {
                    $has_condition = TRUE;
                    $sub_group->where($clause['field'], $clause['value']);
                }
                else {
                    $has_condition = TRUE;
                    $sub_group->condition($clause['field'], $clause['value'], $clause['operator']);
                }
            }
            // Add the item to the filter group.
            if ($group != 0) {
                $has_filter = TRUE;
                $filter_group->condition($sub_group);
            }
            else {
                $has_arguments = TRUE;
                $main_group->condition($sub_group);
            }
        }
    }
    if ($has_filter) {
        $main_group->condition($filter_group);
    }
    if (!$has_arguments && $has_condition) {
        return $filter_group;
    }
    if ($has_arguments && $has_condition) {
        return $main_group;
    }
}