SnippetsCreate a CMS Field in 'Page' but not it's Descendants

26 April 2009 | Aram Balakjian |

1 2

Sometimes you may want a field to appear in pages of type Page but not in the other PageTypes which extend Page. To limit a field added via the function getCMSFields() is a simple case of adding an if() statement to test the current pages class.

SnippetsCreate and use a Permission code

18 April 2009 | Aram Balakjian | CMS, Security, Member | Supports v2.4, v2.3

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Have you wanted to add an extra permission code that you can add to groups and then use that to test whether a particular user has that permission? Here's how it's done. The permission code it self is added via the Controller class, then you use a permission check anywhere in your site code to check the current user. Like so:

SnippetsResizing and Manipulating Images

22 March 2009 | Aram Balakjian | Images, Templates | Supports v2.4, v2.3

4 2

You can resize images from within the template very easily. But sometimes you need to resize it and just use the URL value, something you can't do by calling the resize on the variable directly (e.g. $Image.CroppedImage(200,200)). This is how we would create a cropped resize of it and still be able to use just the URL, allowing a custom <img> tag.

SnippetsHow to access your admin account when you've forgotten the password

22 August 2009 | dalesaurus | Security, Member, Login

2 1

SnippetsClearing the Search field on click with jQuery

5 August 2009 | Aram Balakjian | Templates, Forms, JavaScript

4 1

As with everything, it's attention to detail that makes great sites. One thing that really bugs me is when a site has a search box with the word 'search' inside it but which does not clear it self when clicked, meaning I have to clear it before I can search. Given it can be achieved with a few lines of jQuery, it's a real surprise how many sites fail to implement this, or that still use the 'onclick' inline javascript event. 

SnippetsUsing a Print Stylesheet

16 December 2009 | Aram Balakjian | CSS, Templates

3 0

Often people want to be able to print webpages without all the menus and graphics and with all the content fitting correctly onto a page. To do this you need to create a separate print stylesheet. It would look something like this:

SnippetsRemoving an Item From the Main CMS Menu

3 July 2009 | Aram Balakjian | CMS, Security

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If you want to remove an item from the CMSTopMenu without making it inaccessible you can add this line to your _config.php file:

CMSMenu::remove_menu_item('SecurityAdmin');

SnippetsChanging the CMS Help Link

10 June 2009 | Hamish Campbell |

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Usually you can change the CMS menu settings from your site configuration, but the "Help" link is hard-coded to allow for translations. This snippet, placed in your site configuration file will override the "Help" link with a link back to your site:

CMSMenu::add_link('Help', 'Home', Director::baseUrl());

SnippetsDisplaying Fields From a Set of Pages on Another Page

25 May 2009 | Aram Balakjian | DataObjects, Templates, Database | Supports v2.4, v2.3

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Although ultimately requiring very little code, displaying data from a set of pages on another page can seem confusing for those new to SilverStripe. This example will display all of the Images from all the staff pages on our current page. This works by first returning all the staff pages to our template and cycling through each of them, drawing the Image for each one.

SnippetsGetting objects from multiple child pages

14 April 2009 | Hamish Campbell | DataObjects, Templates | Supports v2.4, v2.3

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When you want to create a DataObjectSet encompasing objects from all the current pages children you can do something like this

$pageIDs = $this->getDescendantIDList();
$ObjectSet = DataObject::get(
                 "Object", 
                 "`ObjectPageID` IN (" . implode(",", $pageIDs) . ")"
                  );