/**
* @param array $queries {
*
* @type string $relation Optional. The MySQL keyword used to join the clauses of the query. Accepts 'AND', Or
* 'OR'. Default 'AND'.
*
* @type array {
* @type string $key Meta key to filter by.
* @type string $value Meta value to filter by.
* @type string $compare MySQL operator used for comparing the $value. Accepts '=',
* '!=', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN',
* 'BETWEEN', 'NOT BETWEEN', 'REGEXP', 'NOT REGEXP', or 'RLIKE'.
* Default is '='
* }
* }
*
* @param Builder $q
* @param int $depth
*/
public function metaQueryClause($queries, &$q, $depth = 0)
{
$i = 0;
foreach ($queries as $key => $query) {
if ('relation' === $key) {
//if relation were found we shall skip to the next iteration
continue;
} else {
if (isset($query['key'])) {
// That happens when a non-nested query found on the first iteration
// in that case we the clause should be AND
$relation = 0 === $i ? 'AND' : $queries['relation'];
$q->where(function ($q) use($query) {
if (isset($query['key'])) {
$q->where('meta_key', '=', $query['key']);
}
if (isset($query['value'])) {
if (isset($query['compare'])) {
switch (strtolower($query['compare'])) {
case 'between':
$q->whereBetween('meta_value', $query['value']);
break;
case 'not between':
$q->whereNotBetween('meta_value', $query['value']);
break;
case 'in':
$q->whereIn('meta_value', $query['value']);
break;
case 'not in':
$q->whereNotIn('meta_value', $query['value']);
break;
case 'is null':
$q->whereIsNull('meta_value');
break;
case 'is not null':
$q->whereIsNotNull('meta_value');
break;
default:
$q->where('meta_value', $query['compare'], $query['value']);
}
} else {
$q->where('meta_value', '=', $query['value']);
}
}
}, null, null, $relation);
} else {
if (is_array($query)) {
$depth = $depth + 1;
// If we're going recursive for the first iterate we shall make the relation AND by default
// else we should use the provided relation
$relation = 1 === $depth && 0 === $i ? 'AND' : $queries['relation'];
$q->where(function ($q) use($query, $depth) {
$this->metaQueryClause($query, $q, $depth);
}, null, null, $relation);
} else {
continue;
}
}
}
$i++;
}
}