function ManyToOneHelper::addFilter

File

core/modules/views/src/ManyToOneHelper.php, line 256

Class

ManyToOneHelper

This many to one helper object is used on both arguments and filters.

Namespace

Code

public function addFilter() {
    if (empty($this->handler->value)) {
        return;
    }
    $this->handler
        ->ensureMyTable();
    // Shorten some variables:
    $field = $this->getField();
    $options = $this->handler->options;
    $operator = $this->handler->operator;
    $formula = !empty($this->formula);
    $value = $this->handler->value;
    if (empty($options['group'])) {
        $options['group'] = 0;
    }
    // If $add_condition is set to FALSE, a single expression is enough. If it
    // is set to TRUE, conditions will be added.
    $add_condition = TRUE;
    if ($operator == 'not') {
        $value = NULL;
        $operator = 'IS NULL';
        $add_condition = FALSE;
    }
    elseif ($operator == 'or' && empty($options['reduce_duplicates'])) {
        if (count($value) > 1) {
            $operator = 'IN';
        }
        else {
            $value = is_array($value) ? array_pop($value) : $value;
            $operator = '=';
        }
        $add_condition = FALSE;
    }
    if (!$add_condition) {
        if ($formula) {
            $placeholder = $this->placeholder();
            if ($operator == 'IN') {
                $operator = "{$operator} IN({$placeholder})";
            }
            else {
                $operator = "{$operator} {$placeholder}";
            }
            $placeholders = [
                $placeholder => $value,
            ];
            $this->handler->query
                ->addWhereExpression($options['group'], "{$field} {$operator}", $placeholders);
        }
        else {
            $placeholder = $this->placeholder();
            if (count($this->handler->value) > 1) {
                $placeholder .= '[]';
                if ($operator == 'IS NULL') {
                    $this->handler->query
                        ->addWhereExpression(0, "{$field} {$operator}");
                }
                else {
                    $this->handler->query
                        ->addWhereExpression(0, "{$field} {$operator}({$placeholder})", [
                        $placeholder => $value,
                    ]);
                }
            }
            else {
                if ($operator == 'IS NULL') {
                    $this->handler->query
                        ->addWhereExpression(0, "{$field} {$operator}");
                }
                else {
                    $this->handler->query
                        ->addWhereExpression(0, "{$field} {$operator} {$placeholder}", [
                        $placeholder => $value,
                    ]);
                }
            }
        }
    }
    if ($add_condition) {
        $field = $this->handler->realField;
        $clause = $operator == 'or' ? new Condition('OR') : new Condition('AND');
        foreach ($this->handler->tableAliases as $value => $alias) {
            $clause->condition("{$alias}.{$field}", $value);
        }
        // implode on either AND or OR.
        $this->handler->query
            ->addWhere($options['group'], $clause);
    }
}