function field_permissions_field_access in Field Permissions 6

Same name and namespace in other branches

1. 7 field_permissions.module \field_permissions_field_access()

Implementation of hook_field_access().

Parameters

$op: The operation to be performed. Possible values:

• 'edit'
• 'view'

$field: The field on which the operation is to be performed.

$account: The account to check. Note that this argument is optional to content_access(), but it is always passed to hook_field_access(), with current user if not supplied. This is an argument that was added to CCK in 6.x-2.2 release.

$node: (optional) The node on which the operation is to be performed. Note that this argument is optional to content_access(), but it is always passed to hook_field_access(), with NULL if not supplied. This is an argument that was added to CCK in 6.x-2.5 release.

Return value

FALSE if the operation is not allowed. Note when content_access() is invoked, access is granted unless one implementation of hook_field_access() explicitly returns FALSE.

See also

content_access()

File

./field_permissions.module, line 73

This is the main script for the Field Permissions module. It merely contains the implementation of hooks invoked by Drupal core and CCK. All common functions are externalized into several scripts that are included on demand to save memory consumption…

Code

function field_permissions_field_access($op, $field, $account, $node) {

  // Ignore the request if permissions have not been enabled for this field.
  $field_permissions = isset($field['field_permissions']) && is_array($field['field_permissions']) ? array_filter($field['field_permissions']) : array();
  if (empty($field_permissions)) {
    return;
  }
  if ($op == 'view') {
    if (!empty($field_permissions['view']) || !empty($field_permissions['view own'])) {
      module_load_include('inc', 'field_permissions', 'includes/field_access');
      return _field_permissions_field_view_access($field['field_name'], $field_permissions, $account, $node);
    }
  }
  elseif ($op == 'edit') {
    if (!empty($field_permissions['edit']) || !empty($field_permissions['edit own']) || !empty($field_permissions['create'])) {
      module_load_include('inc', 'field_permissions', 'includes/field_access');
      return _field_permissions_field_edit_access($field['field_name'], $field_permissions, $account, $node);
    }
  }
}