ding_redia_feed.module

<?php

/**
 * @file
 * Exposes ding content to the mobile app developed by Redia, via feeds.
 */

/**
 * Implements hook_menu().
 */
function ding_redia_feed_menu() {
  $items = array();

  $items['admin/settings/ding_redia_feed'] = array(
    'title' => 'Redia feed settings',
    'description' => 'Settings for the Redia feed module.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('ding_redia_feed_settings_form'),
    'access arguments' => array('access administration pages'),
  );

  return $items;
}

/**
 * Implements hook_perm().
 */
function ding_redia_feed_perm() {
  return array('input redia app setting for nodes');
}

/**
 * General settings form.
 */
function ding_redia_feed_settings_form() {
  $form = array();
  $form['ding_redia_feed_nodes'] = array(
    '#options' => node_get_types('names'),
    '#type' => 'checkboxes',
    '#default_value' => variable_get('ding_redia_feed_nodes', array()),
    '#title' => t('Select which node types that should use the Redia app category'),
  );

  // Transform the user categories data structure into something user editable
  // for the form in the format id|description
  $categories = ding_redia_feed_user_categories();
  foreach ($categories as $id => &$description) {
    $description = $id . '|' . $description;
  }
  $categories = implode("\n", $categories);

  $form['ding_redia_feed_categories'] = array(
    '#type' => 'textarea',
    '#title' => t('Redia app categories'),
    '#description' => t('Enter the categories used by your Redia app. Enter one categories per line and separate id and description with a | e.g. "bahgf|Mobile app quadrant 1 (Upper left). <br/><strong>Important:</strong> These values must be provided to you by Redia. The default values are only examples."'),
    '#default_value' => $categories,
  );

  return system_settings_form($form);
}

/**
 * Settings form validation.
 */
function ding_redia_feed_settings_form_validate($form, &$form_state) {
  // Transform the user submitted data into the category data structure
  // array('id' => 'description')
  $values = explode("\n", $form_state['values']['ding_redia_feed_categories']);

  $categories = array();
  foreach ($values as &$category_string) {
    $category_values = explode('|', $category_string);
    $categories[trim($category_values[0])] = trim($category_values[1]);
  }

  $form_state['values']['ding_redia_feed_categories'] = $categories;
}

/**
 * Utility function to get the possible node app plaement options.
 */
function ding_redia_feed_app_categories() {
  return array_merge(
      // Always allow standard list view
      array('' => t('Standard list view')),
      ding_redia_feed_user_categories()
  );
}

/**
 * Utility function to get the user configurable node app plaement options.
 */
function ding_redia_feed_user_categories() {
  return variable_get('ding_redia_feed_categories',
    // Default values are based on the Copenhagen Ding site/app
    array(
      'bahgf' => 'Mobil app kvadrat 1 (Øverste venstre)',
      'bahgg' => 'Mobil app kvadrat 2 (Øverste højre)',
      'bahgh' => 'Mobil app kvadrat 3 (Nederste venstre)',
      'bahgi' => 'Mobil app kvadrat 4 (Nederste højre)',
    )
  );
}

/**
 * Implements hook_nodeapi().
 */
function ding_redia_feed_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  switch ($op) {
    case 'load':
      $cat = db_result(db_query('SELECT category FROM {ding_redia_feed_cat} WHERE nid = %d', $node->nid));
      $node->ding_redia_feed_cat = $cat ? $cat : '';
      break;
    case 'insert':
      if (!empty($node->ding_redia_feed_cat)) {
        $record = array('nid' => $node->nid, 'category' => $node->ding_redia_feed_cat);
        drupal_write_record('ding_redia_feed_cat', $record);
      }
      break;
    case 'update':
      if (!empty($node->ding_redia_feed_cat)) {
        db_query("UPDATE {ding_redia_feed_cat} SET category = '%s' WHERE nid = %d;", $node->ding_redia_feed_cat, $node->nid);
        if (!db_affected_rows()) {
          $record = array('nid' => $node->nid, 'category' => $node->ding_redia_feed_cat);
          drupal_write_record('ding_redia_feed_cat', $record);
        }
      }
      break;
  }
}

/**
 * Implements hook_form_alter().
 */
function ding_redia_feed_form_alter(&$form, &$form_state, $form_id) {
  if (strpos($form_id, 'node_form') !== FALSE) {
    if (in_array($form['#node']->type, array_filter(variable_get('ding_redia_feed_nodes', array())))) {
      $form['ding_redia_feed_cat'] = array(
        '#type' => 'select',
        '#title' => t('Select Redia app placement'),
        '#options' => ding_redia_feed_app_categories(),
        '#default_value' => !empty($form['#node']->ding_redia_feed_cat) ? $form['#node']->ding_redia_feed_cat : '',
        '#access' => user_access('input redia app setting for nodes'),
      );
    }
  }
}

/**
 * Implementation of hook_views_plugins().
 */
function ding_redia_feed_views_plugins() {
  return array(
    'module' => 'views',
    'row' => array(
      'ding_redia_rss' => array(
        'title' => t('Redia node'),
        'help' => t('Display the node with standard special redia rss format.'),
        'handler' => 'ding_redia_feed_plugin_row_node_rss',
        'path' => drupal_get_path('module', 'ding_redia_feed') . '/plugins',
        'parent' => 'node_rss',
        'theme' => 'views_view_row_rss',
        'base' => array('node'), // only works with 'node' as base.
        'uses options' => TRUE,
        'type' => 'feed',
        'help topic' => 'style-node-rss',
      ),
    ),
  );
}

include_once('ding_redia_feed.features.inc');