Set Front Page from settings[.local].php in Drupal 8

When working on Drupal projects I usually need to set a static front page by referencing a Node’s ID. When working with different environments chances are high that Node ID varies from environment to environment.

Luckily we can easily override any configuration value in the settings file and thus have different values in settings.php than in settings.local.php. It’s simple as that: $config['system.site']['page']['front'] = '/node/1';

Drupal: Add Body Class when Tabs are displayed

I had the urge to style various elements differently in case tabs (the ones generated by menu_local_tasks) are present on the page. Out of the box $tabs array isn't available in html.tpl.php so I had to implement ' hook_preprocess_html' and add my desired class to my array of body classes. Yay!

<?php
function THEMENAME_preprocess_html(&$vars, $hook) {
  // Make tabs available on html tpl
  $vars['tabs'] = menu_local_tabs();
  // if we have primary tabs, add an accoring body class
  if (!empty($vars['tabs']['#primary'])) {
    $vars['classes_array'][] = 'has-tabs';
  }
}
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Unmaintainable Block Admin Page in Drupal

When you have more than 100 Blocks things get messy on Drupal’s Block Admin Interface. If you ever went crazy because of weird issues when dragging and dropping blocks to change their weight and/or region you probably have hit Drupal’s internal limit of handling weights from -50 to +50 or otherwise said, 100 items.

It can be fixed by setting the variable drupal_weight_select_max to a higher value. This can be done in various ways, here’s how its implemented in a deploy script.

function dgm_deploy_update_7011() {
  variable_set('drupal_weight_select_max', 250);
}
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Custom Drupal Views Template breaks AJAX (updated)

I often create custom Views templates for my Drupal sites, for example to freely reposition exposed filters. Unfortunately, AJAX exposed filters in Views works only with a very strict markup hierarchy, and if your markup doesn't match that scheme (.view-[view:id] > .view-filters > filters) it won't work anymore

diff --git a/js/ajax_view.js b/js/ajax_view.js
index 7d54c67..f7f7ba9 100644
--- a/js/ajax_view.js
+++ b/js/ajax_view.js
@@ -57,7 +57,7 @@ Drupal.views.ajaxView = function(settings) {
   this.settings = settings;

   // Add the ajax to exposed forms.
-  this.$exposed_form = this.$view.children('.view-filters').children('form');
+  this.$exposed_form = this.$view.find('.view-filters form');
   this.$exposed_form.once(jQuery.proxy(this.attachExposedFormAjax, this));

   // Add the ajax to pagers.

Source: https://www.drupal.org/node/2477307

Update

Thanks to this patch that removed the selector dependence this is not needed anymore

Remove fields form content type programatically

Say you want to remove the body field from the page content type. Putting this code inside an updatescript will get the job done. Remember not to use field_delete_field() if you're not sure if you still want to use the field anywhere else. It's way safer to rely on field_delete_instance. Setting the second parameter to TRUE means it's automatically going to clean up the field anyway if it is found to be the last instance.

$instance = field_info_instance('node', 'body', 'page');
field_delete_instance($instance, TRUE);
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