function workflow_nodeapi in Workflow 6

Same name and namespace in other branches

1. 5.2 workflow.module \workflow_nodeapi()
2. 5 workflow.module \workflow_nodeapi()
3. 6.2 workflow.module \workflow_nodeapi()

Implementation of hook_nodeapi().

File

./workflow.module, line 96

Support workflows made up of arbitrary states.

Code

function workflow_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  switch ($op) {
    case 'load':
      $node->_workflow = workflow_node_current_state($node);

      // Add scheduling information.
      $res = db_query('SELECT * FROM {workflow_scheduled_transition} WHERE nid = %d', $node->nid);
      if ($row = db_fetch_object($res)) {
        $node->_workflow_scheduled_sid = $row->sid;
        $node->_workflow_scheduled_timestamp = $row->scheduled;
        $node->_workflow_scheduled_comment = $row->comment;
      }
      break;
    case 'insert':

      // If the state is not specified, use first valid state.
      // For example, a new node must move from (creation) to some
      // initial state.
      if (empty($node->workflow)) {
        $choices = workflow_field_choices($node);
        $keys = array_keys($choices);
        $sid = array_shift($keys);
      }

    // Note no break; fall through to 'update' case.
    case 'update':

      // Do nothing if there is no workflow for this node type.
      $wid = workflow_get_workflow_for_type($node->type);
      if (!$wid) {
        break;
      }

      // Get new state from value of workflow form field, stored in $node->workflow.
      if (!isset($sid)) {
        $sid = $node->workflow;
      }
      workflow_transition($node, $sid);
      break;
    case 'delete':
      $node->workflow_stamp = time();
      db_query("DELETE FROM {workflow_node} WHERE nid = %d", $node->nid);
      _workflow_write_history($node, WORKFLOW_DELETION, t('Node deleted'));

      // Delete any scheduled transitions for this node.
      db_query("DELETE FROM {workflow_scheduled_transition} WHERE nid = %d", $node->nid);
      break;
  }
}