access(AccountInterface $account, $return_as_object): Checks whether the current block will get displayed for a user or not.label(): Returns a string with a block label.build(): This methods returns the render array of the block.Namespace: In order for the custom block to be recognized by Drupal it also needs to be in the proper namespace.Context definitions -> If our plugin requires any additional objects to do its work then we can provide them in the Context definitions section of the annotation -> Optional.Category -> Blocks are put in categories in the admin UI, defining this parameter will put the Block in the specified category -> Optional.Admin_label -> Label which will appear in GUI -> Mandatory.Annotation: Drupal uses annotations to describe the metadata of the Plugin (in our case a block) and also uses them to register plugins. The block can be annotated by the following parameters:.Now, go back to the custom block library and click the blue ‘ Add custom block’ button to add the block to your library.Ĭreate a module and the folder structure in which your custom block implementation will reside:ĭescription: Provides programmatic examples of the Ultimate block guide.Ĭore_version_requirement: ^8.8.0 || ^9 || ^10. ![]() Customise the block to your liking and click save. Now, you can add fields, manage display type, manage display etc.Once here, click on the ‘ Add custom block type’ button. Go to admin -> structure -> block layout -> custom block library.By clicking on the link ‘Demonstrate block regions’ the site will display on which part of the page a block will be rendered (sidebar, header, footer, etc…). The blocks in the Block Layout are placed into the regions. Knowledge of custom module development in Drupal (YAML, namespaces, modules folder structure)Īll the blocks currently present on the site are available in the ‘Block Layout’ section of the ‘Structure’ menu.Familiarity with basic Drupal theming concepts (understanding of theme regions).Enabled Block and Custom Block modules (usually Drupal has these enabled already, I’m leaving this information here in case that they aren’t).This guide offers a quick overview of implementation of these types of blocks, but is mostly focusing on the Custom Blocks that can be implemented via development of a custom module. The Custom Blocks that come from the GUI are blocks of content similar to node entities. ![]() Examples of a block would be social sharing buttons, Who’s online, Recently viewed content, Social media feeds, etc…
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