A modular approach to building pages in SilverStripe
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SilverStripe 4 Block Page

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Author: Andrew Mc Cormack


A modular approach to building pages in SilverStripe which allows model based page components.

  • Custom model based blocks
  • No limit to number of blocks
  • Easily block selection and editing
  • Use drag and drop GridField functionality to change and re-order blocks easily
  • Apply complex logic like forms to blocks
  • Versioning across blocks

Screen Shots


Add the following to your composer.json file and run /dev/buid?flush=all

    "require": {  
        "cyber-duck/silverstripe-block-page": "4.0.*"


Add Extension and Template Loop

The first step to adding block functionality is to apply the block page extension to your DataObject. This can be a normal DataObject or a Page.

    - BlockPageExtension

This will add a new tab to the CMS called content blocks. The second step is to apply the loop within your template for the blocks:

<% loop ContentBlocks %>
<% end_loop %>

Add Block Model and Template

The next step is to create a block. A block consists of 2 parts; a DataObject and a .ss template. Both these should have the same name.

  • EditorBlock.php
  • EditorBlock.ss

The model file can reside anywhere inside your code folder and should extend ContentBlock The base template for a block DataObject is as follows:

use CyberDuck\BlockPage\Model\ContentBlock;
use SilverStripe\Forms\HeaderField;
use SilverStripe\Forms\HTMLEditor\HTMLEditorField;

class EditorBlock extends ContentBlock
    private static $title = 'Editor';

    private static $description = 'Simple WYSIWYG editor block';
    private static $preview = '/themes/{YourTheme}/img/block/EditorBlock.png';

    private static $db = [
        'Content' => 'HTMLText'

    public function getCMSFields()
        $fields = parent::getCMSFields();

        $fields->insertBefore(HeaderField::create('BlockHeader', self::$title), 'Title')

        $fields->addFieldToTab('Root.Main', HTMLEditorField::create('Content')); // example field

        return $fields;

In the example above 1 custom block field is created called Content. You can replace this / add any other fields you want. There are 3 config properties used for a block used in the block selection screen:

  • $title - Block title
  • $description - Block description
  • $preview - Preview image for the block. You can point this to an image folder in your theme or similar. 360w x 150h.

Next in your theme folder create a folder at themes/{YourTheme}/templates/Block/ and add the EditorBlock.ss template within with the following content:


Add Block YML Config

The final step to configuring your blocks is to set up the block YML config:

Name: block config
    - EditorBlock

Visit /dev/build?flush=all

Add Blocks in the CMS

Go the the CMS and visit your Page / Object editing screen and you will see a new tab called Content Blocks. Here you can create new blocks, edit blocks, and re-order blocks.

Extra Config

Restricting Blocks

You can restrict certain block selections to a particular page type by passing a restrict option

    - EditorBlock
    - HomeFeaturedBlock
      - HomeFeaturedBlock

Creating a Block Holder Template

If you wish to wrap all blocks within a certain template you can create a ContentBlock_holder.ss template within the /Block/ folder.

<div id="block-$ID">

The loop within your page needs to change slightly and call $TemplateHolder instead of template.

<% loop ContentBlocks %>
<% end_loop %>