og_field_access.module in Organic groups 7

Provide field access based on group.

File

og_field_access/og_field_access.module

<?php

/**
 * @file
 * Provide field access based on group.
 */

/**
 * Implements hook_og_permission().
 *
 * Add view/ edit permissions to all existing fields.
 */
function og_field_access_og_permission() {
  $perms = array();
  foreach (field_info_instances() as $entity => $bundles) {
    foreach ($bundles as $bundle => $bundle_value) {
      if (empty($bundle_value)) {
        continue;
      }
      if (!og_is_group_type($entity, $bundle) && !og_is_group_content_type($entity, $bundle)) {
        continue;
      }
      foreach ($bundle_value as $field_name => $value) {
        $label = $value['label'];
        $perm = 'view ' . $field_name . ' field';
        $perms[$perm] = array(
          'title' => t('View @label field', array(
            '@label' => $label,
          )),
          'description' => t('View the %fieldname field for existing groups.', array(
            '%fieldname' => $field_name,
          )),
          'roles' => array(
            OG_ANONYMOUS_ROLE,
            OG_AUTHENTICATED_ROLE,
          ),
          'default role' => array(
            OG_ANONYMOUS_ROLE,
            OG_AUTHENTICATED_ROLE,
            OG_ADMINISTRATOR_ROLE,
          ),
          'module' => 'og_field_access',
        );
        $perm = 'update ' . $field_name . ' field';
        $perms[$perm] = array(
          'title' => t('Edit @label field', array(
            '@label' => $label,
          )),
          'description' => t('Edit the %fieldname field for existing groups.', array(
            '%fieldname' => $field_name,
          )),
          'roles' => array(
            OG_ANONYMOUS_ROLE,
            OG_AUTHENTICATED_ROLE,
          ),
          'default role' => array(
            OG_ADMINISTRATOR_ROLE,
          ),
          'module' => 'og_field_access',
        );
      }
    }
  }
  return $perms;
}

/**
 * Implements hook_field_access().
 */
function og_field_access_field_access($op, $field, $entity_type, $entity, $account) {
  $perm = $op == 'view' ? 'view ' . $field['field_name'] . ' field' : 'update ' . $field['field_name'] . ' field';

  // Return result only if the entity is related to OG.
  $access = og_user_access_entity($perm, $entity_type, $entity, $account);
  if (!is_null($access)) {
    return $access;
  }
}

Functions

Name	Description
og_field_access_field_access	Implements hook_field_access().
og_field_access_og_permission	Implements hook_og_permission().