first import

Signed-off-by: bachy <git@g-u-i.net>

modules/field/views_handler_relationship_entity_reverse.inc

@@ -0,0 +1,84 @@
+<?php
+
+/**
+ * @file
+ * Definition of views_handler_relationship_entity_reverse.
+ */
+
+/**
+ * A relationship handlers which reverse entity references.
+ *
+ * @ingroup views_relationship_handlers
+ */
+class views_handler_relationship_entity_reverse extends views_handler_relationship  {
+  function init(&$view, &$options) {
+    parent::init($view, $options);
+
+    $this->field_info = field_info_field($this->definition['field_name']);
+  }
+
+  /**
+   * Called to implement a relationship in a query.
+   */
+  function query() {
+    $this->ensure_my_table();
+    // First, relate our base table to the current base table to the
+    // field, using the base table's id field to the field's column.
+    $views_data = views_fetch_data($this->table);
+    $left_field = $views_data['table']['base']['field'];
+
+    $first = array(
+      'left_table' => $this->table_alias,
+      'left_field' => $left_field,
+      'table' => $this->definition['field table'],
+      'field' => $this->definition['field field'],
+    );
+    if (!empty($this->options['required'])) {
+      $first['type'] = 'INNER';
+    }
+
+    if (!empty($this->definition['join_extra'])) {
+      $first['extra'] = $this->definition['join_extra'];
+    }
+
+    if (!empty($this->definition['join_handler']) && class_exists($this->definition['join_handler'])) {
+      $first_join = new $this->definition['join_handler'];
+    }
+    else {
+      $first_join = new views_join();
+    }
+    $first_join->definition = $first;
+    $first_join->construct();
+    $first_join->adjusted = TRUE;
+
+    $this->first_alias = $this->query->add_table($this->definition['field table'], $this->relationship, $first_join);
+
+    // Second, relate the field table to the entity specified using
+    // the entity id on the field table and the entity's id field.
+    $second = array(
+      'left_table' => $this->first_alias,
+      'left_field' => 'entity_id',
+      'table' => $this->definition['base'],
+      'field' => $this->definition['base field'],
+    );
+
+    if (!empty($this->options['required'])) {
+      $second['type'] = 'INNER';
+    }
+
+    if (!empty($this->definition['join_handler']) && class_exists($this->definition['join_handler'])) {
+      $second_join = new $this->definition['join_handler'];
+    }
+    else {
+      $second_join = new views_join();
+    }
+    $second_join->definition = $second;
+    $second_join->construct();
+    $second_join->adjusted = TRUE;
+
+    // use a short alias for this:
+    $alias = $this->definition['field_name'] . '_' . $this->table;
+
+    $this->alias = $this->query->add_relationship($alias, $second_join, $this->definition['base'], $this->relationship);
+  }
+}