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Articles tagged with "Drupal 7"

Place blocks inside your content with EBA

13th Jan 2014

Previously on this website I have written about rendering blocks programmatically and adding things to content to be managed alongside fields. It's time to combine the two! On many projects, we find ourselves needing to render a block consistently across all content of a certain type. For example:

  • Are you trying to place advertising blocks or fixed javascript code between the fields in the content of a page, not just shoved into regions around the content?
  • Do you want to show a standard piece of content (we use the bean module for enhanced content in blocks) to be placed...
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Making the Flag Module's Confirmation form use AJAX

17th Apr 2012

This article discusses how we can use a combination of techniques to take the standard 'Confirmation Form' provided by the Flag module and get it to load in a modal window rather than on its own page. We'll also extend this form slightly to allow the user to include some additional data before clicking 'Confirm'. As an example we'll use the Flag module to create an 'Abuse' flag that will apply to a comment entity - this is intended to allow a user to flag a comment as requiring moderations but before triggering the actions associated with the flag we...

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Render a block programmatically

22nd Mar 2012

This is a real quick one, but so useful! We often want to render a block within content, perhaps as part of a node (maybe in hook_node_view, and then made configurable like a field), but there's no obvious way to do this correctly for any block. Drupal normally renders its blocks per region, so there is no single function to embed a block. I came across this really simple solution by Damien Tournoud in a Drupal core issue, which I feel deserves more exposure:

$block = block_load($module, $delta);
$render_array = _block_get_renderable_array(_block_render_blocks(array($block)));
$output = render($render_array);

That's just three...

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Add stuff to a node and configure it like fields

28th Feb 2012

We often want to add things to the content of a node or any other entity in Drupal 7 using hook_node_view(), hook_node_view_alter() or a similar hook in a custom module. This could be anything from a custom social media link, a field rendered in a custom way, additional author information or virtually anything else.

The rendered node with our pseudo-field

Here's the code used to add that Facebook like button:

 * Implements hook_node_view().
 * Adds a Facebook like button to page nodes.
function MYMODULE_node_view($node, $view_mode, $langcode) {
  switch ($node->type) {
    case 'page':
      $node->content['MYMODULE_fb_like'] = array(
        '#type' => 'item',
        '#title' => t('Like...
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Rendering Drupal 7 fields (the right way)

Drupal 7 brought us Entities, and with them the powerful Field API for 'storing, loading, editing, and rendering field data.' attached to them. If you're managing everything through 'manage fields' and 'manage display' tabs of your content type, then every part of that process is rather wonderfully taken care of for you.

We often, however, come across the need to render a field outside the context of it's entity. A common example might include rendering a node's author in a sidebar block. Sure, modules like Panels and CCK Blocks will do this for you, but doing it manually is actually not that hard.

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Drupal node load references : Drupal 7

12th Jul 2011

In Drupal 6, if you called node_load then what you'd be returned would be your own copy of the node to change and modify as you pleased, but in Drupal 7 this was changed. By default, what you actually get back from a node_load is essentially a reference to a global singleton for that node. This has the interesting side effect of meaning that if you change anything in the node object, you are probably changing everyone else's copies of that node too. This is explained in this issue:

So, why should you care? Well, in the right circumstances...

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Multiple conditions for dynamic forms in Drupal 7

5th Jul 2011

Here's a quick follow-up to my original post on Dynamic forms in Drupal 7, as a reply to Wappie08, who asked me about combining conditions in the #states array to add increased control over the display of your form elements.

The question:

Hi James Williams, I read your blog post about d7 & #states in the FAPI which is really cool! One problem is that the information is also listed in the example module, I was missing one important extra hint: how can you make an IF statement?

I mean:
IF field_1 is '1' or...

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Setting default drupal theme during installation : programatically install a drupal theme

25th Mar 2011

Here's a quick post that will be a reminder for us as much as anyone else! Setting the default theme during installation using an installation profile is surprisingly hard in Drupal 6, and easier though not obvious in Drupal 7. In Drupal 6, we used the wonderful Install Profile API module, which allowed us to do it in just a few lines in an install task:

  install_enable_theme(array('my_theme', 'garland', 'rubik'));

In Drupal 7, here's the code I use in my install task:

  // Any themes without keys here will get numeric keys and so will be enabled,...
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Apache Solr boost Drupal search results at query-time

11th Mar 2011

Boosting terms in Solr search results produced by the Apache Solr Search module that integrates Solr with Drupal is something we had to do for a project recently. If a user has come to our website from a search engine, we can pick up the terms that they had originally searched for - and then boost any documents containing those terms in our own search pages, regardless of what they search for on our pages. (So for example, a user searches Google for 'Ski Holidays', comes to our site, and anything ski-related items should be more prominent than they would...

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Creating new field formatters in Drupal 7

3rd Feb 2011

Creating extra field formatters in Drupal 7 is fairly simple, but it can take some poking around in the new Fields code. So here is some sample code to make it easier for you! You can add formats to your own fields -- or existing fields that are defined by other Drupal modules. This is the case for the following example - a formatter for a link field to display the URL as an absolute URL.

First, implement hook_field_formatter_info() to declare your field formatter to the fields API, and implement hook_field_formatter_view() which tells Drupal what to do when viewing the...

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