protected function joinManyToManyRelation(Relations\BelongsToMany $relation, $type)
{
$pivotTable = $relation->getTable();
// $relation->getQualifiedParentKeyName() is protected
$parentKey = $relation->getParent()->getQualifiedKeyName();
$localKey = $relation->getOtherKey();
$this->query->join($pivotTable, $localKey, '=', $parentKey, $type);
$related = $relation->getRelated();
$foreignKey = $relation->getForeignKey();
$relatedTable = $related->getTable();
$relatedKey = $related->getQualifiedKeyName();
$this->query->join($relatedTable, $foreignKey, '=', $relatedKey, $type);
}
/**
* Init nested query for filter.
*
* @param QueryBuilder $query
* @param array $ids
*
* @return void
*/
protected function initNestedQuery(QueryBuilder $query, array $ids)
{
$connection = $query->getConnection();
$keyName = $connection->raw($this->relation->getParent()->getQualifiedKeyName());
$query->from($this->relation->getTable())->select($connection->raw('1'))->where($this->relation->getForeignKey(), '=', $keyName)->whereIn($this->relation->getOtherKey(), $ids);
}
private function generateJoinFromBelongsToMany(BelongsToMany $relation)
{
// Pivot Table Generated On
$generatedOnClause = [[$relation->getForeignKey(), $relation->getQualifiedParentKeyName()]];
// Pivot Table Join
$this->generateJoin($relation->getTable(), $generatedOnClause);
// Related Table Generated On
$generatedOnClause = [$this->related->getQualifiedKeyName(), $relation->getOtherKey()];
// Related Table Join
$this->generateJoin($this->related->getTable(), $this->compileOns($generatedOnClause), $this->nested ? $this->conditions[$this->index] : $this->conditions);
}
protected function applyBelongsToMany(Query $query, Model $model, BelongsToMany $belongsToMany, $name)
{
if (isset($this->joinClasses[$name])) {
return;
}
$modelTable = $model->getTable();
$related = $belongsToMany->getRelated();
$pivotTable = $belongsToMany->getTable();
$pivotAlias = $pivotTable . '_pivot';
$pivotLocalKey = $belongsToMany->getOtherKey();
$relatedTable = $related->getTable();
$relationKey = $related->getKeyName();
$foreignKey = $belongsToMany->getForeignKey();
$qualifiedLocalKey = $belongsToMany->getQualifiedParentKeyName();
$alias = $this->joinNameToAlias($name);
$joinMethod = $this->getJoinMethod($name);
$query->{$joinMethod}("{$pivotTable}", "{$qualifiedLocalKey}", '=', "{$foreignKey}");
$query->{$joinMethod}("{$relatedTable} AS {$alias}", "{$relatedTable}.{$relationKey}", '=', "{$pivotLocalKey}");
$query->distinct();
$this->joinClasses[$name] = $related;
$this->joinTable[$name] = $relatedTable;
$this->joinAliases[$name] = $alias;
}
