--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/relation_processor/FeedsRelationProcessor.inc	Fri Mar 27 19:21:42 2015 +0100
@@ -0,0 +1,413 @@
+<?php
+
+/**
+ * @file
+ * Class definition of FeedsNodeProcessor.
+ */
+
+/**
+ * Creates nodes from feed items.
+ */
+class FeedsRelationProcessor extends FeedsProcessor {
+
+  /**
+   * Define entity type.
+   */
+  public function entityType() {
+    return 'relation';
+  }
+
+  /**
+   * Implements parent::entityInfo().
+   */
+  protected function entityInfo() {
+    $info = parent::entityInfo();
+    $info['label plural'] = t('Relations');
+    return $info;
+  }
+
+  /**
+   * Creates a new node in memory and returns it.
+   */
+  protected function newEntity(FeedsSource $source) {
+    /*$node = new stdClass();
+     $node->type = $this->bundle();
+    $node->changed = REQUEST_TIME;
+    $node->created = REQUEST_TIME;
+    $node->language = LANGUAGE_NONE;
+    $node->is_new = TRUE;
+    node_object_prepare($node);
+    // Populate properties that are set by node_object_prepare().
+    $node->log = 'Created by FeedsNodeProcessor';
+    $node->uid = $this->config['author'];
+    */
+
+
+    $relation = new stdClass();
+    $relation->is_new = TRUE;
+
+    $relation->relation_type = $this->bundle();
+    $relation->uid = $this->config['author'];
+    $relation->endpoints[LANGUAGE_NONE] = Null;
+
+    $relation->changed = REQUEST_TIME;
+    $relation->created = REQUEST_TIME;
+
+    return $relation;
+
+  }
+
+  /**
+   * Loads an existing node.
+   *
+   * If the update existing method is not FEEDS_UPDATE_EXISTING, only the node
+   * table will be loaded, foregoing the node_load API for better performance.
+   *
+   * @todo Reevaluate the use of node_object_prepare().
+   */
+  protected function entityLoad(FeedsSource $source, $nid) {
+
+    $node = relation_load($nid);
+
+    if ($this->config['update_existing'] != FEEDS_UPDATE_EXISTING) {
+      $node->uid = $this->config['author'];
+    }
+
+    /* node_object_prepare($node);
+
+    // Workaround for issue #1247506. See #1245094 for backstory.
+    if (!empty($node->menu)) {
+    // If the node has a menu item(with a valid mlid) it must be flagged
+    // 'enabled'.
+    $node->menu['enabled'] = (int) (bool) $node->menu['mlid'];
+    }
+    */
+    // Populate properties that are set by node_object_prepare().
+    if ($this->config['update_existing'] == FEEDS_UPDATE_EXISTING) {
+      $node->log = 'Updated by FeedsNodeProcessor';
+    }
+    else {
+      $node->log = 'Replaced by FeedsNodeProcessor';
+    }
+    return $node;
+  }
+
+  /**
+   * Check that the user has permission to save a node.
+   */
+  protected function entitySaveAccess($entity) {
+
+    // The check will be skipped for anonymous nodes.
+    if ($this->config['authorize'] && !empty($entity->uid)) {
+
+      $author = user_load($entity->uid);
+
+      // If the uid was mapped directly, rather than by email or username, it
+      // could be invalid.
+      if (!$author) {
+        $message = 'User %uid is not a valid user.';
+        throw new FeedsAccessException(t($message, array('%uid' => $entity->uid)));
+      }
+
+      if (empty($entity->nid) || !empty($entity->is_new)) {
+        $op = 'create';
+        $access = node_access($op, $entity->type, $author);
+      }
+      else {
+        $op = 'update';
+        $access = node_access($op, $entity, $author);
+      }
+
+      if (!$access) {
+        $message = 'User %name is not authorized to %op content type %content_type.';
+        throw new FeedsAccessException(t($message, array('%name' => $author->name, '%op' => $op, '%content_type' => $entity->type)));
+      }
+    }
+  }
+
+  /**
+   * Validates a node.
+   */
+  protected function entityValidate($entity) {
+    if (!isset($entity->uid) || !is_numeric($entity->uid)) {
+      $entity->uid = $this->config['author'];
+    }
+  }
+  /**
+   * Save a node.
+   */
+  public function entitySave($entity) {
+    relation_save($entity);
+  }
+
+  /**
+   * Delete a series of nodes.
+   */
+  protected function entityDeleteMultiple($nids) {
+    relation_delete_multiple($nids);
+  }
+
+  /**
+   * Implement expire().
+   *
+   * @todo: move to processor stage?
+   */
+  public function expire($time = NULL) {
+    if ($time === NULL) {
+      $time = $this->expiryTime();
+    }
+    if ($time == FEEDS_EXPIRE_NEVER) {
+      return;
+    }
+    $count = $this->getLimit();
+    $nodes = db_query_range("SELECT n.nid FROM {node} n JOIN {feeds_item} fi ON fi.entity_type = 'node' AND n.nid = fi.entity_id WHERE fi.id = :id AND n.created < :created", 0, $count, array(':id' => $this->id, ':created' => REQUEST_TIME - $time));
+    $nids = array();
+    foreach ($nodes as $node) {
+      $nids[$node->nid] = $node->nid;
+    }
+    $this->entityDeleteMultiple($nids);
+    if (db_query_range("SELECT 1 FROM {node} n JOIN {feeds_item} fi ON fi.entity_type = 'node' AND n.nid = fi.entity_id WHERE fi.id = :id AND n.created < :created", 0, 1, array(':id' => $this->id, ':created' => REQUEST_TIME - $time))->fetchField()) {
+      return FEEDS_BATCH_ACTIVE;
+    }
+    return FEEDS_BATCH_COMPLETE;
+  }
+
+  /**
+   * Return expiry time.
+   */
+  public function expiryTime() {
+    return $this->config['expire'];
+  }
+
+  /**
+   * Override parent::configDefaults().
+   */
+  public function configDefaults() {
+    return array(
+        'expire' => FEEDS_EXPIRE_NEVER,
+        'author' => 0,
+        'authorize' => TRUE,
+    ) + parent::configDefaults();
+  }
+
+  /**
+   * Override parent::configForm().
+   */
+  public function configForm(&$form_state) {
+    $form = parent::configForm($form_state);
+
+    $author = user_load($this->config['author']);
+    $form['author'] = array(
+        '#type' => 'textfield',
+        '#title' => t('Author'),
+        '#description' => t('Select the author of the nodes to be created - leave empty to assign "anonymous".'),
+        '#autocomplete_path' => 'user/autocomplete',
+        '#default_value' => empty($author->name) ?  'anonymous' : check_plain($author->name),
+    );
+    $form['authorize'] = array(
+        '#type' => 'checkbox',
+        '#title' => t('Authorize'),
+        '#description' => t('Check that the author has permission to create the node.'),
+        '#default_value' => $this->config['authorize'],
+    );
+    $period = drupal_map_assoc(array(FEEDS_EXPIRE_NEVER, 3600, 10800, 21600, 43200, 86400, 259200, 604800, 2592000, 2592000 * 3, 2592000 * 6, 31536000), 'feeds_format_expire');
+    $form['expire'] = array(
+        '#type' => 'select',
+        '#title' => t('Expire nodes'),
+        '#options' => $period,
+        '#description' => t('Select after how much time nodes should be deleted. The node\'s published date will be used for determining the node\'s age, see Mapping settings.'),
+        '#default_value' => $this->config['expire'],
+    );
+    return $form;
+  }
+
+  /**
+   * Override parent::configFormValidate().
+   */
+  public function configFormValidate(&$values) {
+    if ($author = user_load_by_name($values['author'])) {
+      $values['author'] = $author->uid;
+    }
+    else {
+      $values['author'] = 0;
+    }
+  }
+
+  /**
+   * Reschedule if expiry time changes.
+   */
+  public function configFormSubmit(&$values) {
+    if ($this->config['expire'] != $values['expire']) {
+      feeds_reschedule($this->id);
+    }
+    parent::configFormSubmit($values);
+  }
+
+  /**
+   * Override setTargetElement to operate on a target item that is a node.
+   */
+  public function setTargetElement(FeedsSource $source, $target_node, $target_element, $value) {
+    switch ($target_element) {
+      case 'created':
+        $target_node->created = feeds_to_unixtime($value, REQUEST_TIME);
+        break;
+      case 'feeds_source':
+        // Get the class of the feed node importer's fetcher and set the source
+        // property. See feeds_node_update() how $node->feeds gets stored.
+        if ($id = feeds_get_importer_id($this->bundle())) {
+          $class = get_class(feeds_importer($id)->fetcher);
+          $target_node->feeds[$class]['source'] = $value;
+          // This effectively suppresses 'import on submission' feature.
+          // See feeds_node_insert().
+          $target_node->feeds['suppress_import'] = TRUE;
+        }
+        break;
+      case 'user_name':
+        if ($user = user_load_by_name($value)) {
+          $target_node->uid = $user->uid;
+        }
+        break;
+      case 'user_mail':
+        if ($user = user_load_by_mail($value)) {
+          $target_node->uid = $user->uid;
+        }
+        break;
+      default:
+        parent::setTargetElement($source, $target_node, $target_element, $value);
+        break;
+    }
+  }
+
+  /**
+   * Return available mapping targets.
+   */
+  public function getMappingTargets() {
+    $type = relation_type_load($this->bundle());
+
+    $targets = parent::getMappingTargets();
+
+    $targets['source_id'] = array(
+        'name' => t('Source Field'),
+        'description' => t('Source.'),
+        'optional_unique' => FALSE,
+    );
+
+    $targets['target_id'] = array(
+        'name' => t('Target Field'),
+        'description' => t('Target.'),
+        'optional_unique' => FALSE,
+    );
+
+
+    $targets['relation_name'] = array(
+        'name' => t('Relation type'),
+        'description' => t('Target.'),
+        'optional_unique' => FALSE,
+    );
+
+
+    $targets['nid'] = array(
+        'name' => t('Node ID'),
+        'description' => t('The nid of the node. NOTE: use this feature with care, node ids are usually assigned by Drupal.'),
+        'optional_unique' => TRUE,
+    );
+    $targets['uid'] = array(
+        'name' => t('User ID'),
+        'description' => t('The Drupal user ID of the node author.'),
+    );
+    $targets['user_name'] = array(
+        'name' => t('Username'),
+        'description' => t('The Drupal username of the node author.'),
+    );
+    $targets['user_mail'] = array(
+        'name' => t('User email'),
+        'description' => t('The email address of the node author.'),
+    );
+    $targets['status'] = array(
+        'name' => t('Published status'),
+        'description' => t('Whether a node is published or not. 1 stands for published, 0 for not published.'),
+    );
+    $targets['created'] = array(
+        'name' => t('Published date'),
+        'description' => t('The UNIX time when a node has been published.'),
+    );
+
+    // Include language field if Locale module is enabled.
+    if (module_exists('locale')) {
+      $targets['language'] = array(
+          'name' => t('Language'),
+          'description' => t('The two-character language code of the node.'),
+      );
+    }
+
+
+    // If the target content type is a Feed node, expose its source field.
+    if ($id = feeds_get_importer_id($this->bundle())) {
+      $name = feeds_importer($id)->config['name'];
+      $targets['feeds_source'] = array(
+          'name' => t('Feed source'),
+          'description' => t('The content type created by this processor is a Feed Node, it represents a source itself. Depending on the fetcher selected on the importer "@importer", this field is expected to be for example a URL or a path to a file.', array('@importer' => $name)),
+          'optional_unique' => TRUE,
+      );
+    }
+
+    // Let other modules expose mapping targets.
+    self::loadMappers();
+
+    // load nodes mapper
+    require_once("nodes.inc");
+    //$entity_type = $this->entityType();
+    $entity_type = "relation";
+    $bundle = $this->bundle();
+    drupal_alter('feeds_processor_targets', $targets, $entity_type, $bundle);
+
+    return $targets;
+  }
+
+  /**
+   * Get nid of an existing feed item node if available.
+   */
+  protected function existingEntityId(FeedsSource $source, FeedsParserResult $result) {
+    if ($nid = parent::existingEntityId($source, $result)) {
+      return $nid;
+    }
+
+    // Iterate through all unique targets and test whether they do already
+    // exist in the database.
+    foreach ($this->uniqueTargets($source, $result) as $target => $value) {
+      switch ($target) {
+        case 'nid':
+          $nid = db_query("SELECT rid FROM {relation} WHERE rid = :rid", array(':rid' => $value))->fetchField();
+          break;
+        case 'title':
+          $nid = db_query("SELECT rid FROM {relation} WHERE title = :title AND type = :type", array(':title' => $value, ':type' => $this->bundle()))->fetchField();
+          break;
+        case 'feeds_source':
+          if ($id = feeds_get_importer_id($this->bundle())) {
+            $nid = db_query("SELECT fs.feed_nid FROM {relation} n JOIN {feeds_source} fs ON n.rid = fs.feed_nid WHERE fs.id = :id AND fs.source = :source", array(':id' => $id, ':source' => $value))->fetchField();
+          }
+          break;
+      }
+      if ($nid) {
+        // Return with the first nid found.
+        return $nid;
+      }
+    }
+    return 0;
+  }
+
+
+  /**
+   * Provides a list of bundle options for use in select lists.
+   *
+   * @return array
+   *   A keyed array of bundle => label.
+   */
+  public function bundleOptions() {
+    $options = array();
+
+    $options = relation_get_types_options();
+    return $options;
+
+  }
+}