spaces_taxonomy.module in Spaces 7

spaces_taxonomy.module

File

spaces_taxonomy/spaces_taxonomy.module

<?php

/**
 * @file spaces_taxonomy.module
 */

/**
 * Implements hook_enable().
 */
function spaces_taxonomy_enable() {

  // Weight spaces_taxonomy to be after taxonomy.
  $weight = db_query("SELECT weight FROM {system} WHERE type = :type AND name = :name", array(
    ':type' => 'module',
    ':name' => 'taxonomy',
  ))
    ->fetchField();
  db_update('system')
    ->fields(array(
    'weight' => $weight + 1,
  ))
    ->condition('name', 'spaces_taxonomy')
    ->execute();
}

/**
 * Implements hook_ctools_plugin_api().
 */
function spaces_taxonomy_ctools_plugin_api($module, $api) {
  if ($module == 'spaces' && $api == 'plugins') {
    return array(
      'version' => 3,
    );
  }
}

/**
 * Implements hook_purl_provider().
 */
function spaces_taxonomy_purl_provider() {
  $items = array();
  $items["spaces_taxonomy"] = array(
    'name' => t('Term space'),
    'description' => t('Sets a space as the active space.'),
    'callback' => 'spaces_init_space',
    'callback arguments' => array(
      'taxonomy',
    ),
    'example' => 'my-space',
  );
  return $items;
}

/**
 * Implements hook_spaces_plugins().
 */
function spaces_taxonomy_spaces_plugins() {
  $plugins = array();
  $plugins['space_taxonomy'] = array(
    'handler' => array(
      'path' => drupal_get_path('module', 'spaces_taxonomy') . '/plugins',
      'file' => 'space_taxonomy.inc',
      'class' => 'space_taxonomy',
      'parent' => 'space_type_purl',
    ),
  );
  return $plugins;
}

/**
 * Implements hook_spaces_registry().
 */
function spaces_taxonomy_spaces_registry() {
  return array(
    'types' => array(
      'taxonomy' => array(
        'title' => t('Term space'),
        'plugin' => 'space_taxonomy',
        'path' => 'taxonomy/term/%',
      ),
    ),
  );
}

/**
 * Implements hook_menu().
 */
function spaces_taxonomy_menu() {
  $items = array();
  $items['admin/structure/spaces/taxonomy'] = array(
    'title' => 'Taxonomy',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'spaces_taxonomy_settings',
    ),
    'access callback' => 'user_access',
    'access arguments' => array(
      'administer spaces',
    ),
    'type' => MENU_LOCAL_TASK,
  );
  return $items;
}

/**
 * Implements hook_menu_alter().
 */
function spaces_taxonomy_menu_alter(&$items) {
  if (isset($items['taxonomy/term/%'])) {
    $items['taxonomy/term/%/view'] = $items['taxonomy/term/%'];
    $items['taxonomy/term/%/view']['type'] = MENU_DEFAULT_LOCAL_TASK;
    $items['taxonomy/term/%/view']['title'] = 'View';
    $items['taxonomy/term/%/view']['weight'] = -10;
  }
}

/**
 * Implements hook_form_alter().
 *
 * This disables the term selection field on a node for the currently enabled taxonomy
 * space. This is a precaution so that the node is not moved form one space to another.
 */
function spaces_taxonomy_form_alter(&$form, $form_state, $form_id) {
  if (!empty($form['#node_edit_form']) && arg(0) . '/' . arg(1) != 'admin/content') {
    $vocab = variable_get('spaces_taxonomy_machine_name', 0);
    $space = spaces_get_space();
    if ($vocab && $space && $space->type == 'taxonomy') {

      // Find term fields that are for the current spaces vocab
      $fields = field_info_fields();
      foreach ($fields as $name => $field) {
        if ($field['type'] == 'taxonomy_term_reference' && $vocab == $field['settings']['allowed_values'][0]['vocabulary']) {
          if ($term_field =& $form[$name]) {

            //TODO: Fix this whole 'und' thing
            $term_field['und']['#disabled'] = TRUE;
            $term_field['und']['#default_value'] = $space->id;
            $term_field['und']['#description'] = t('Spaces has disabled this field.  You cannot move a node from one term space to another.');
          }
        }
      }
    }
  }
}

/**
 * Implements hook_form_alter() for taxonomy_form_term().
 */
function spaces_taxonomy_form_taxonomy_form_term_alter(&$form, $form_state) {
  $vocab_name = variable_get('spaces_taxonomy_machine_name', 0);
  if ($vocab_name && $form['vocabulary_machine_name']['#value'] == $vocab_name) {
    $tid = isset($form['tid']['#value']) ? $form['tid']['#value'] : 0;
    $space = spaces_load('taxonomy', $tid);
    if ($space) {
      $space
        ->activate();
      $form['spaces'] = array(
        '#type' => 'fieldset',
        '#title' => t('Spaces'),
        '#tree' => FALSE,
        '#weight' => 0,
      );

      // Add PURL modifier form
      $modifier = purl_load(array(
        'id' => $tid,
        'provider' => 'spaces_taxonomy',
      ));
      $form['spaces']['purl'] = purl_form('spaces_taxonomy', $tid, isset($modifier['value']) ? $modifier['value'] : '');

      // Add presets form
      $presets = spaces_preset_load(NULL, 'taxonomy');
      if (count($presets) > 1) {
        module_load_include('inc', 'spaces', 'spaces.admin');
        $form['spaces']['spaces_preset'] = spaces_preset_form($presets, 'taxonomy');
        $space = spaces_load('taxonomy', $tid);
        $default_value = $space->controllers->variable
          ->get('spaces_preset_taxonomy', 'space');
        if (isset($default_value, $form['spaces']['spaces_preset']['spaces_preset_taxonomy']['#options'][$default_value])) {
          $form['spaces']['spaces_preset']['spaces_preset_taxonomy']['#default_value'] = $default_value;
        }
      }
    }
  }
}

/**
 * Implements hook_taxonomy_term_insert().
 */
function spaces_taxonomy_taxonomy_term_insert($term) {
  _spaces_taxonomy_term_save_preset_and_modifier($term);
}

/**
 * Implements hook_taxonomy_term_update().
 */
function spaces_taxonomy_taxonomy_term_update($term) {
  _spaces_taxonomy_term_save_preset_and_modifier($term);
}

/**
 * Save the Taxonomy Term preset values
 *
 * @param  $term  A term object
 */
function _spaces_taxonomy_term_save_preset_and_modifier($term) {
  $space = spaces_load('taxonomy', $term->tid);
  if ($space) {

    // Save preset values.
    if (!empty($term->spaces_preset_taxonomy)) {
      $space->controllers->variable
        ->set('spaces_preset_taxonomy', $term->spaces_preset_taxonomy);
    }

    // Save PURL modifier.
    $modifier = array(
      'provider' => 'spaces_taxonomy',
      'id' => $term->tid,
      'value' => $term->purl['value'],
    );
    purl_save($modifier);
  }
}

/**
 * Implements hook_taxonomy_term_delete().
 */
function spaces_taxonomy_taxonomy_term_delete($term) {
  spaces_delete('taxonomy', $term->tid);
  $modifier = array(
    'provider' => 'spaces_taxonomy',
    'id' => $term->tid,
  );
  purl_delete($modifier);
}

/**
 * TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO
 * Implement a form alter to disable changing the selected spaces
 * vocabulary to free tagging or multiple.
 * TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO TODO
 */

/**
 * Spaces Taxonomy settings form.
 *
 * A node can only belong to one space, so only provide options for the Space
 * vocabulary that are single valued.  This means that:
 *
 *  1) In various hook_form_alters we will need to disable the cardinality
 *     selection on term references that are for this specified Spaces vocab.
 *  2) On any term reference field in a node form, do not allow them to change
 *     the value of this vocabulary once it has been selected.
 */
function spaces_taxonomy_settings($form, &$form_state) {
  $form = array();

  // Collect an array of valid vocab options
  $vocabs = array(
    0 => '---',
  );
  foreach (taxonomy_get_vocabularies() as $vocab) {
    $vocabs[$vocab->machine_name] = $vocab->name;
  }

  // Get all fields that are taxonomy terms, if they allow more than one
  // term to be selected remove them from this dropdown.
  $fields = field_info_fields();
  foreach ($fields as $name => $field) {
    if ($field['type'] == 'taxonomy_term_reference' && $field['cardinality'] != 1) {
      unset($vocabs[$field['settings']['allowed_values'][0]['vocabulary']]);
    }
  }
  $form['spaces_taxonomy_machine_name'] = array(
    '#type' => 'select',
    '#title' => t('Spaces vocabulary'),
    '#description' => t('Choose one of the following vocabularies to enable for use with Spaces.'),
    '#options' => $vocabs,
    '#default_value' => variable_get('spaces_taxonomy_machine_name', 0),
  );
  $form = system_settings_form($form);
  return $form;
}

Functions

Name	Description
spaces_taxonomy_ctools_plugin_api	Implements hook_ctools_plugin_api().
spaces_taxonomy_enable	Implements hook_enable().
spaces_taxonomy_form_alter	Implements hook_form_alter().
spaces_taxonomy_form_taxonomy_form_term_alter	Implements hook_form_alter() for taxonomy_form_term().
spaces_taxonomy_menu	Implements hook_menu().
spaces_taxonomy_menu_alter	Implements hook_menu_alter().
spaces_taxonomy_purl_provider	Implements hook_purl_provider().
spaces_taxonomy_settings	Spaces Taxonomy settings form.
spaces_taxonomy_spaces_plugins	Implements hook_spaces_plugins().
spaces_taxonomy_spaces_registry	Implements hook_spaces_registry().
spaces_taxonomy_taxonomy_term_delete	Implements hook_taxonomy_term_delete().
spaces_taxonomy_taxonomy_term_insert	Implements hook_taxonomy_term_insert().
spaces_taxonomy_taxonomy_term_update	Implements hook_taxonomy_term_update().
_spaces_taxonomy_term_save_preset_and_modifier	Save the Taxonomy Term preset values