<?php
// $Id: nodequeue.views.inc,v 1.4.2.1 2011-01-13 20:34:20 ezrag Exp $

/**
 * @file nodequeue.views.inc
 * Provides support for the Views module.
 *
 * This implementation is almost entirely based around a relationship
 * which is stapled to the 'node' table via hook_views_data_alter.
 *
 * The relationship allows you to define 0 or more queues that join the
 * queue tables, limiting the join to just the queues selected. Once
 * the queues are joined in, the queue fields will show up, and they
 * have the usual array of arguments, sorts, fields and filters; since
 * the real legwork is done by the relationship, most of these are
 * really quite simple.
 */


function nodequeue_views_handlers() {
  return array(
  'info' => array(
    'path' => drupal_get_path('module', 'nodequeue') .'/includes/views',
    ),
    'handlers' => array(
      'nodequeue_handler_argument_subqueue_qid' => array(
         'parent' => 'views_handler_filter_numeric',
       ),
      'nodequeue_handler_field_all_queues' => array(
        'parent' => 'views_handler_field_prerender_list',
      ),
      'nodequeue_handler_field_all_subqueues' => array(
        'parent' => 'nodequeue_handler_field_all_queues',
      ),
      'nodequeue_handler_field_links' => array(
        'parent' => 'views_handler_field_node_link',
      ),
      'nodequeue_handler_field_queue_tab' => array(
        'parent' => 'views_handler_field_node_link',
      ),
      'nodequeue_handler_filter_in_queue' => array(
        'parent' => 'views_handler_filter_boolean_operator',
      ),
      'nodequeue_handler_relationship_nodequeue' => array(
        'parent' => 'views_handler_relationship',
      ),
      'nodequeue_handler_relationship_nodequeue_queue_name' => array(
        'parent' => 'views_handler_relationship',
      ),
    ),
  );
}
/**
 * Implementation of hook_views_data()
 */
function nodequeue_views_data() {
  $data = array();

  // ----------------------------------------------------------------
  // nodequeue_nodes table
  $data['nodequeue_nodes']['table']['group'] = t('Nodequeue');

  // The nodequeue_nodes table is how nodequeue connects to the
  // rest of the world, but we will only join it in via relationship.

  // position
  $data['nodequeue_nodes']['position'] = array(
    'title' => t('Position'),
    'help' => t('The position of the node within a queue.'),
    'field' => array(
      'handler' => 'views_handler_field_numeric',
      'click sortable' => TRUE,
     ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_numeric',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_numeric',
    ),
  );

  // timestamp
  $data['nodequeue_nodes']['timestamp'] = array(
    'title' => t('Added date'),
    'help' => t('The date the node was added to a queue.'),
    'field' => array(
      'handler' => 'views_handler_field_date',
      'click sortable' => TRUE,
    ),
    'sort' => array(
      'handler' => 'views_handler_sort_date',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_date',
    ),
  );

  $data['nodequeue_nodes']['qid'] = array(
    'title' => t('Queue ID'),
    'help' => t('The ID of the queue the node belongs to.'),
    'field' => array(
      'handler' => 'views_handler_field_numeric',
      'click sortable' => TRUE,
     ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_numeric',
      'name field' => 'title',
      'name table' => 'nodequeue_queue',
      'empty field name' => t('No queue'),
    ),
  );

  $data['nodequeue_nodes']['sqid'] = array(
    'title' => t('Subqueue ID'),
    'help' => t('The ID of the subqueue the node belongs to.'),
    'field' => array(
      'handler' => 'views_handler_field_numeric',
      'click sortable' => TRUE,
     ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_numeric',
      'name field' => 'title',
      'name table' => 'nodequeue_subqueue',
      'empty field name' => t('No queue'),
    ),
  );

  // specialized is null/is not null filter
  $data['nodequeue_nodes']['in_queue'] = array(
    'title' => t('In queue'),
    'help' => t('Filter to ensure a node IS or IS NOT in the related queue'),
    'filter' => array(
      'handler' => 'nodequeue_handler_filter_in_queue',
      'label' => t('In queue'),
    ),
  );

  // ----------------------------------------------------------------
  // nodequeue_queue table
  $data['nodequeue_queue']['table']['group'] = t('Nodequeue');

  // For use with the relationship.
  $data['nodequeue_queue']['table']['join'] = array(
    'nodequeue_nodes' => array(
      'left_field' => 'qid',
      'field' => 'qid',
    ),
  );

  $data['nodequeue_queue']['title'] = array(
    'title' => t('Queue title'),
    'help' => t('The title of the nodequeue.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE,
     ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  $data['nodequeue_queue']['name'] = array(
    'title' => t('Queue machine name'),
    'help' => t('The machine name of the queue.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE,
    ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  // ----------------------------------------------------------------
  // nodequeue_subqueue table
  $data['nodequeue_subqueue']['table']['group'] = t('Nodequeue');

  // For use with the relationship.
  $data['nodequeue_subqueue']['table']['join'] = array(
    'nodequeue_nodes' => array(
      'left_field' => 'sqid',
      'field' => 'sqid',
    ),
  );

  $data['nodequeue_subqueue']['title'] = array(
    'title' => t('Subqueue title'),
    'help' => t('The title of the subqueue.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE,
     ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );

  $data['nodequeue_subqueue']['reference'] = array(
    'title' => t('Subqueue reference'),
    'help' => t('The reference that defines a subqueue; what this actually is depends upon the type of subqueue, but is a taxonomy tid for smartqueue taxonomy, or a uid for authorview.'),
    'field' => array(
      'handler' => 'views_handler_field',
      'click sortable' => TRUE,
     ),
    'sort' => array(
      'handler' => 'views_handler_sort',
    ),
    'filter' => array(
      'handler' => 'views_handler_filter_string',
    ),
    'argument' => array(
      'handler' => 'views_handler_argument_string',
    ),
  );
  
  return $data;
}

/**
 * Implementation of hook_views_data_alter().
 */
function nodequeue_views_data_alter(&$data) {
  // queue relationship
  $data['node']['nodequeue_rel'] = array(
    'group' => t('Nodequeue'),
    'title' => t('Queue (qid)'),
    'help' => t('Create a relationship to a nodequeue. This relationship requires one less JOIN than the queue name relationship, but is less useful if you are exporting this view across sites.'),
    'real field' => 'nid',
    'relationship' => array(
      'handler' => 'nodequeue_handler_relationship_nodequeue',
      'base' => 'nodequeue_nodes',
      'field' => 'nid',
      'label' => t('queue'),
    ),
  );

  $data['node']['nodequeue_rel_queue_name'] = array(
    'group' => t('Nodequeue'),
    'title' => t('Queue (name)'),
    'help' => t('Create a relationship to a nodequeue. This relationship requires an additional JOIN versus the queue qid based relationship, but is more useful for exporting views across sites.'),
    'real field' => 'nid',
    'relationship' => array(
      'handler' => 'nodequeue_handler_relationship_nodequeue_queue_name',
      'base' => 'nodequeue_nodes',
      'field' => 'nid',
      'label' => t('queue'),
    ),
  );

  // links
  $data['node']['nodequeue_links'] = array(
    'group' => t('Nodequeue'),
    'title' => t('Add/remove links'),
    'help' => t('Display add/remove links for all eligible nodequeues. Note that this performs a node_load so could add many extra queries to a view.'),
    'real field' => 'nid',
    'field' => array(
      'handler' => 'nodequeue_handler_field_links',
    ),
  );

  $data['node']['nodequeue_queue_tab'] = array(
    'group' => t('Nodequeue'),
    'title' => t('Link to tab'),
    'help' => t('Display add/remove links for all eligible nodequeues. Note that this performs a node_load so could add many extra queries to a view.'),
    'real field' => 'nid',
    'field' => array(
      'handler' => 'nodequeue_handler_field_queue_tab',
    ),
  );

  // all queues
  $data['node']['nodequeue_all_queues'] = array(
    'group' => t('Nodequeue'),
    'title' => t('All queues'),
    'help' => t('Display all queues a node is a member of.'),
    'real field' => 'nid',
    'field' => array(
      'handler' => 'nodequeue_handler_field_all_queues',
    ),
  );

  // all subqueues
  $data['node']['nodequeue_all_subqueues'] = array(
    'group' => t('Nodequeue'),
    'title' => t('All subqueues'),
    'help' => t('Display all subqueues a node is a member of.'),
    'real field' => 'nid',
    'field' => array(
      'handler' => 'nodequeue_handler_field_all_subqueues',
    ),
  );
}