<?php

/**

 * @file

 * Test module for Taxonomy hooks and functions not used in core.

 *

 * @see TaxonomyHooksTestCase::testTaxonomyTermHooks()

 */

/**

 * Implements hook_taxonomy_term_load().

 */

function taxonomy_test_taxonomy_term_load($terms) {

  foreach ($terms as $term) {

    $antonym = taxonomy_test_get_antonym($term->tid);

    if ($antonym) {

      $term->antonym = $antonym;

    }

  }

}

/**

 * Implements hook_taxonomy_term_insert().

 */

function taxonomy_test_taxonomy_term_insert($term) {

  if (!empty($term->antonym)) {

    db_insert('taxonomy_term_antonym')

      ->fields(array(

        'tid' => $term->tid,

        'name' => trim($term->antonym)

      ))

      ->execute();

  }

}

/**

 * Implements hook_taxonomy_term_update().

 */

function taxonomy_test_taxonomy_term_update($term) {

  if (!empty($term->antonym)) {

    db_merge('taxonomy_term_antonym')

      ->key(array('tid' => $term->tid))

      ->fields(array(

        'name' => trim($term->antonym)

      ))

      ->execute();

  }

}

/**

 * Implements hook_taxonomy_term_delete().

 */

function taxonomy_test_taxonomy_term_delete($term) {

  db_delete('taxonomy_term_antonym')

    ->condition('tid', $term->tid)

    ->execute();

}

/**

 * Implements hook_taxonomy_term_view().

 */

function taxonomy_test_taxonomy_term_view($term, $view_mode, $langcode) {

  if ($view_mode == 'full') {

    $term->content['taxonomy_test_term_view_check'] = array(

      '#prefix' => '<div>',

      '#markup' => t('The antonym is %antonym', array('%antonym' => $term->antonym)),

      '#suffix' => '</div>',

      '#weight' => 10,

    );

  }

}

/**

 * Implements hook_entity_view().

 */

function taxonomy_test_entity_view($entity, $type, $view_mode, $langcode) {

  if ($type == 'taxonomy_term' && $view_mode == 'full') {

    $entity->content['taxonomy_test_entity_view_check'] = array(

      '#prefix' => '<div>',

      '#markup' => t('The antonym is %antonym', array('%antonym' => $entity->antonym)),

      '#suffix' => '</div>',

      '#weight' => 20,

    );

  }

}

/**

 * Implements hook_form_alter().

 */

function taxonomy_test_form_alter(&$form, $form_state, $form_id) {

  if ($form_id == 'taxonomy_form_term') {

    $antonym = taxonomy_test_get_antonym($form['#term']['tid']);

    $form['advanced']['antonym'] = array(

      '#type' => 'textfield',

      '#title' => t('Antonym'),

      '#default_value' => !empty($antonym) ? $antonym : '',

      '#description' => t('Antonym of this term.')

    );

  }

}

/**

 * Return the antonym of the given term ID.

 */

function taxonomy_test_get_antonym($tid) {

  return db_select('taxonomy_term_antonym', 'ta')

    ->fields('ta', array('name'))

    ->condition('tid', $tid)

    ->execute()

    ->fetchField();

}

/**

 * Implements hook_query_alter().

 */

function taxonomy_test_query_alter(QueryAlterableInterface $query) {

  $value = variable_get(__FUNCTION__);

  if (isset($value)) {

    variable_set(__FUNCTION__, ++$value);

  }

}

/**

 * Implements hook_query_TAG_alter().

 */

function taxonomy_test_query_term_access_alter(QueryAlterableInterface $query) {

  $value = variable_get(__FUNCTION__);

  if (isset($value)) {

    variable_set(__FUNCTION__, ++$value);

  }

}

/**

 * Implements hook_query_TAG_alter().

 */

function taxonomy_test_query_taxonomy_term_access_alter(QueryAlterableInterface $query) {

  $value = variable_get(__FUNCTION__);

  if (isset($value)) {

    variable_set(__FUNCTION__, ++$value);

  }

}