menu_move_form.inc

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<?php
/**************************************************************
 
 Copyright (c) 2010 Sonjara, Inc
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation
 files (the "Software"), to deal in the Software without
 restriction, including without limitation the rights to use,
 copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the
 Software is furnished to do so, subject to the following
 conditions:
 
 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.
 
 Except as contained in this notice, the name(s) of the above 
 copyright holders shall not be used in advertising or otherwise 
 to promote the sale, use or other dealings in this Software 
 without prior written authorization.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
 
*****************************************************************/
 
/**************************************************************
 *
 * Description: Move a page within the menu
 * hierarchy.
 * 
 * Reshma Joshi for Sonjara, Inc.
 * 
 * modified, Janice Gallant for Sonjara, Inc., adapted
 * from help page code.
 * 
 * 9/30/2010
 * 
 ****************************************************************/
 
 
Fakoli::using("menu", "site", "role", "page", "field_renderers");
Fakoli::usingFile("framework/auto_form.inc","framework/tree.inc");
 
$menu_item_id = checkNumeric($_GET["menu_item_id"]);
$parent_id = checkNumeric($_GET["parent_id"]);
 
$menuItem = new MenuItem();
 
if ($menu_item_id)
{
     $menuItem->load($menu_item_id);
     $title = "Move Menu Item: {$menuItem->title}";
}
else
{
     redirect("menus");
}
 
$form = new AutoForm($menuItem);
 
$form->hide("title", "page_id", "sort_order", "identifier", "menu_id", "url", "role", "permissions", "required_parameters");
$form->alias("parent_id", "Move Menu Item To: ");
$form->onSaveComplete = UpdateRolesToMatchNewParent;
 
$redirect = "/admin/menu_item_form?menu_item_id={$menu_item_id}&parent_id={$parent_id}";
$form->button("Cancel", $redirect);
 
if($parent_id)
     $form->submitLabel = "Move Page";
 
$menuItems = Query::create(MenuItem, "WHERE menu_id=:m ORDER BY sort_order")
                      ->bind(":m", $menuItem->menu_id)
                     ->execute();
 
$menuItemTree = new TreeControl("parent_id");
$menuItemTree->width = 500;
$menuItemTree->height = 280;
$menuItemTree->selectMode = "single";
 
if ($method == "POST") 
{
     if($form->save())
          redirect($redirect);
}
 
if (count($menuItems) > 0)
{   
     $root_checked = ($parent_id == 0);
     $emptyNode = new TreeNode("emptyNode", "Top Level", "0", $root_checked, "tree_node_closed", "tree_node_open");
     $menuItemTree->add($emptyNode);
     
     foreach ($menuItems as $menuItem)
     {    
          $checked = ($menuItem->menu_item_id == $parentkey);
        
         if( ($menuItem->menu_item_id == $menu_item_id ) || ($menuItem->parent_id == $menu_item_id) ) 
         {
          $node = new TreeNode("menuItemPage_{$menuItem->menu_item_id}", $menuItem->title, "", false, "tree_node_closed", "tree_node_open");
         }
          else 
          {
               $node = new TreeNode("menuItemPage_{$menuItem->menu_item_id}", $menuItem->title, $menuItem->menu_item_id, $checked, "tree_node_closed", "tree_node_open");
         }
        
         $tmp = Array( 
                            'parent' => $menuItem->parent_id, 
                            'node' => $node);
         $displays[$menuItem->menu_item_id] = $tmp;
     }    
 
     foreach ($displays as $display) 
     {    
          if (empty($display['parent'])) 
          {
               $menuItemTree->add($display['node']);
          }
          else 
          {
               $parentNode = $displays[ $display['parent'] ]['node'];
               $parentNode->add($display['node']);
          }
     }
}
 
$treeSelect = new TreeSelectFieldRenderer($form, "parent_id", $menuItemTree);
 
echo 
$script = $form->writeScript();
$script .= "<link type='text/css' rel='stylesheet' href='/css/tree.css'/>";
?>
<h4>Note: when you move a page, that page's child pages will move with it. The page's roles will change to match its new position: any roles selected for this page that are not also selected for its new parent page will be removed.</h4>
<?
$form->drawForm();
 
/*
 * We need to update this page's and its child pages to have the 
 * same roles as the new parent page. If the parent page does not
 * have one or more roles that this page has, then we must
 * remove that role from this page and its child pages.
 * 
 */
function UpdateRolesToMatchNewParent($form)
{
     $menuItem = $form->data;
     $parent = $menuItem->Parent();
     
     $tobeRemoved = getRoleDiff($menuItem->role, $parent->role);
     
     updateChildRoles($menuItem, $tobeRemoved);
}
 
 
/*
 * Get the roles that are in the first string but not in the 2nd.
 */
function getRoleDiff($string1, $string2)
{
     $in1Not2 = array();
     
     if($string1 != $string2)
     {
          $roles1 = ($string1) ? explode(",", $string1) : array();
          $roles2 = ($string2) ? explode(",", $string2) : array();
 
          // get roles that are in roles1 but not in roles2
          $in1Not2 = array_diff($roles1, $roles2);
     }
     
     return $in1Not2;
}
     
 
function updateChildRoles($menuItem, $tobeRemovedRoles)
{
     if(count($tobeRemovedRoles) > 0)
     {
          $childPages = array();
          $childPages = getChildMenuItems($menuItem, $childPages);
          foreach($tobeRemovedRoles as $oldRole)
          {
               foreach($childPages as $child)
               {
                    $child->role = preg_replace("/$oldRole,*/", "", $child->role);
                    $child->filter = new InclusionFilter("role");
                         
                    // remove comma as first char, if it exists
                    $child->role = preg_replace("/^,*/", "", $child->role);
                    $child->save();
               }
          }
     }    
}
 
 
/*
 * Recursively create an array of all child pages of $menuItem down to the
 * leaf page.
 */
function getChildMenuItems($menuItem, &$childPages)
{
    $children = $menuItem->Children();
 
    if($children) 
    {
          foreach($children as $child) 
          {
               array_push($childPages, $child);
               getChildPages($child, $childPages);
        }
    }
 
    return $childPages;
}
?>