1 <?php

     2 /**

     3  * @file

     4  * Vocabulary Permissions Per Role

     5  *

     6  * Allows adding to/editing terms of/removing terms from vocabularies per role.

     7  */

     8 

     9 /**

    10  * Implements hook_menu_alter().

    11  */

    12 function vppr_menu_alter(&$items) {

    13   // Taxonomy overview page.

    14   $items['admin/structure/taxonomy']['access callback'] = 'vppr_access_taxonomy';

    15   $items['admin/structure/taxonomy']['page callback'] = 'vppr_taxonomy_overview_vocabularies';

    16   $items['admin/structure/taxonomy']['file'] = 'vppr.admin.inc';

    17   $items['admin/structure/taxonomy']['file path'] = drupal_get_path('module', 'vppr');

    18   unset($items['admin/structure/taxonomy']['page arguments']);

    19   // Terms list.

    20   $items['admin/structure/taxonomy/%taxonomy_vocabulary_machine_name']['access callback'] = 'vppr_access_vocabulary_terms';

    21   $items['admin/structure/taxonomy/%taxonomy_vocabulary_machine_name']['access arguments'] = array(3);

    22   // Add terms.

    23   $items['admin/structure/taxonomy/%taxonomy_vocabulary_machine_name/add']['access callback'] = 'vppr_access_vocabulary_terms';

    24   $items['admin/structure/taxonomy/%taxonomy_vocabulary_machine_name/add']['access arguments'] = array(3);

    25   // Term edit.

    26   $items['taxonomy/term/%taxonomy_term/edit']['access callback'] = 'vppr_access_term_edit';

    27   $items['taxonomy/term/%taxonomy_term/edit']['access arguments'] = array(2);

    28 }

    29 

    30 /**

    31  * VPPR's access callback for taxonomy overview page (main entry point).

    32  *

    33  * Grants access to taxonomy overview page even if $user has access to any of

    34  * the vocabularies.

    35  */

    36 function vppr_access_taxonomy() {

    37   if (user_access('administer taxonomy')) {

    38     return TRUE;

    39   }

    40   $perms = array_keys(vppr_permission());

    41   foreach ($perms as $perm) {

    42     if (user_access($perm)) {

    43       return TRUE;

    44     }

    45   }

    46   return FALSE;

    47 }

    48 

    49 /**

    50  * VPPR's access callback for terms list.

    51  */

    52 function vppr_access_vocabulary_terms($vocabulary) {

    53   if (user_access('administer taxonomy') || user_access('administer ' . $vocabulary->machine_name . ' vocabulary terms')) {

    54     return TRUE;

    55   }

    56   return FALSE;

    57 }

    58 

    59 /**

    60  * Return edit access for a given term.

    61  */

    62 function vppr_access_term_edit($term) {

    63   if (taxonomy_term_edit_access($term) || user_access('administer ' . $term->vocabulary_machine_name . ' vocabulary terms')) {

    64     return TRUE;

    65   }

    66   return FALSE;

    67 }

    68 

    69 /**

    70  * Return delete access for a given term.

    71  */

    72 function vppr_access_term_delete($term) {

    73   if (user_access('administer taxonomy') || user_access("delete terms in $term->vid") || user_access('administer ' . $term->vocabulary_machine_name . ' vocabulary terms')) {

    74     return TRUE;

    75   }

    76   return FALSE;

    77 }

    78 

    79 /**

    80  * Implements hook_form_FORM_ID_alter().

    81  */

    82 function vppr_form_taxonomy_form_term_alter(&$form, &$form_state) {

    83   if (isset($form['tid']['#value']) && isset($form['actions']['delete']['#access']) && isset($form['#term'])) {

    84     $form['actions']['delete']['#access'] = vppr_access_term_delete((object) $form['#term']);

    85   }

    86 }

    87 

    88 /**

    89  * Implements hook_permission().

    90  */

    91 function vppr_permission() {

    92   $perms = array();

    93   $vocabularies = taxonomy_get_vocabularies();

    94   foreach ($vocabularies as $vocabulary) {

    95     $perms['administer ' . $vocabulary->machine_name . ' vocabulary terms'] = array(

    96       'title' => t('Administer %name vocabulary terms', array('%name' => $vocabulary->name)),

    97     );

    98   }

    99   return $perms;

   100 }

   101 

   102 /**

   103  * Implements hook_taxonomy_vocabulary_update().

   104  */

   105 function vppr_taxonomy_vocabulary_update($vocabulary) {

   106   if ($vocabulary->old_machine_name != $vocabulary->machine_name) {

   107     db_update('role_permission')

   108       ->fields(array(

   109         'permission' => 'administer ' . $vocabulary->machine_name . ' vocabulary terms',

   110       ))

   111       ->condition('permission', 'administer ' . $vocabulary->old_machine_name . ' vocabulary terms')

   112       ->execute();

   113 

   114     // Clear the user access cache.

   115     drupal_static_reset('user_access');

   116     drupal_static_reset('user_role_permissions');

   117   }

   118 }

   119 

   120 /**

   121  * Implements hook_taxonomy_vocabulary_delete().

   122  */

   123 function vppr_taxonomy_vocabulary_delete($vocabulary) {

   124   db_delete('role_permission')

   125     ->condition('permission', 'administer ' . $vocabulary->machine_name . ' vocabulary terms')

   126     ->execute();

   127 

   128   // Clear the user access cache.

   129   drupal_static_reset('user_access');

   130   drupal_static_reset('user_role_permissions');

   131 }