protected function SqlGroupGraphStorage::getEdgeId in Subgroup (Graph) 1.0.x

Gets the edge ID relating the parent group to the child group.

Parameters

int $parent_group_id: The ID of the parent group.

int $child_group_id: The ID of the child group.

Return value

int The ID of the edge relating the parent group to the child group.

2 calls to SqlGroupGraphStorage::getEdgeId()

SqlGroupGraphStorage::addEdge in src/Graph/SqlGroupGraphStorage.php

Relates the parent group and the child group.

SqlGroupGraphStorage::removeEdge in src/Graph/SqlGroupGraphStorage.php

Removes the relationship between the parent group and the child group.

File

src/Graph/SqlGroupGraphStorage.php, line 238

Class

SqlGroupGraphStorage

SQL based storage of the group relationship graph.

Namespace

Drupal\ggroup\Graph

Code

protected function getEdgeId($parent_group_id, $child_group_id) {
  $query = $this->connection
    ->select('group_graph', 'gg')
    ->fields('gg', [
    'id',
  ]);
  $query
    ->condition('start_vertex', $parent_group_id);
  $query
    ->condition('end_vertex', $child_group_id);
  $query
    ->condition('hops', 0);
  return $query
    ->execute()
    ->fetchField();
}