Useful Drupal modules
This is my working list of useful Drupal 8 modules as I find out about them. It's mainly a reference for myself and includes reminders/advice based on my experience of using each module. (I also mention bugs, but don't let that put you off testing the modules yourself.)
At the bottom of the page I've linked to useful blogs and a longer auto-generated list.
|Name||My notes||D8||Tested||Last Updated||Avoid|
|AddToAny Share Buttons||
Nice, clean, SVG sharing buttons. Project page says it's specifically optimised for Drupal.
|Advanced Page Expiration||
I would avoid this. The idea is you enter URL paths with wildcards and override the cache expiration. I was unable to get it to work properly for pages (settings on config under Development > Performance) Also, re: caching images, those are files being served directly by Apache or Nginx, not via the Drupal front-controller, so caching settings need to be configured there.
Integrates with Amazon Echo. Allows Drupal to respond to Alexa skills requests. See Dries' blog with video demo.
Autofocuses the first field of form (forms can be specified). No sign of a D8 port.
You can hide a node's title field (for reference, every node has to have a title) and generate it automatically, similar to pathauto. No-one's porting this to D8 yet.
Saves snapshot of content type form using AJAX. Content types and save frequency can be configured. No sign of a D8 port yet.
In Core (was experimental) from 8.3.0.
|Block Visibility Groups||
Rather than change visibility for individual blocks, you can group them together and assign complex visibility settings to all of them. Module page promotes it as a simpler alternative to Panels.
Keyboard shortcuts. A bit like Spotlight/Alfred/Launchbar. Alt+D to launch (memonic: alt + D = coffee!) Handy as it doesn't clash with browser keyboard-shortcut extensions such as Vimium.
Use this patch to fix CSS background colour when navigating up/down through options.
Lock all configuration changes via the admin UI - e.g. if you need to lockdown a production environment.
Lets you view messages sent via the contact form. It's in a (late) beta in D8, maintainers want to move it into core. May be useful considering From: address SPF/DMARC problem with contact forms.
Build a custom list of nodes. The setup is via Admin > Structure. Currently D8 alpha.
|Exclude Node Title||
There are situations where you will want to hide a node title - e.g. if you have a view and insert an image field that's an entity reference to another content type. Module allows you to hide titles by content type or view mode and for all nodes or just a custom selection. Beta in D8.
Update: most people are now moving away from features. There is a Configuration Management initiative under discussion in Drupal 8.
Package up selected configuration for "features" (e.g. a blog or a photo gallery etc.) for reuse on other sites. Not the same as the new D8 Config sync, which is for exchanging configs between different environments of the same site and requires a cloned DB sharing the same UUIDs.
Allows you to group a set of fields together. In active development for D8 but still a lot of open bugs at time of writing - project page says it will likely be replaced by Paragraphs.
Control editing/visibility of individual fields by role. There's a generic "private" setting, for the author + administrators, but you can set custom permissions per role for 'create own', 'edit own', 'view own', 'edit any' and 'view any'. These are automatically applied to views, for example. Note: the setting you're looking for is Field visibility and permissions – it's on the Edit tab, NOT Field Settings.
Provides a more detailed field list (under Reports) with individual instances. You can also copy fields, form and view displays to other bundles.
Handle favourites, reading lists, spam, friend lists etc. Can be applied to any entity (nodes, users, comments etc.) It appears as a clickable link. Can choose between page reload and AJAX when user toggles it. Linked with views, and you can trigger events when flag count reaches a threshold.
Add Next/previous links to node view for specific content types - e.g. image gallery. Powerful - supports: next/last, random link, you can specify exact text used etc. Currently a dev version in D8.
Setup: activate for a content type in the 'Edit' tab (NOT manage display). Once Flippy is active, Manage Display tab will have a pager field so you can reposition the links relative to other fields on the page (e.g. above or below image).
Protect against brute-force login attacks. Unclear what's happening with porting of this.
Alternative to the Organic Groups module. Allows you to create groups - e.g. classes, subscriptions, multiple communities. Drupal module of the week post. Blog post. It is by all accounts solidly written, but I found the initial UI confusing (in a "so what do I do now?" way) - you probably need to watch the YouTube video to understand it.
Hours/minutes/seconds field type (formats: h:mm, h:mm:ss, m:ss, h, m or s). Drupal 8 in beta.
Images are hidden until they scroll into view. Can specify distance before loading is triggered, also placeholder image, loading GIF and any pages to be excluded. There's been some Drupal 8 development but unclear how complete it is.
Adds a file browser to the CKEditor link dialog, so you can select files that have already been uploaded. Settings in Admin > Config > Media. In many cases will be better IA to add a dedicate file field to the content type and use that, or wait for the new media browser (currently being designed, follow the Drupal UX group.)
Allows you to browse the site as another user (to see what they see) and then quickly switch back again. A general Drupal recommendation is to create test accounts for each of your roles, so this is useful for testing them. (As per notes, don't use it for anonymous access, just log out.) Replacement for 'Switch User'.
This comes with a whole series of modules, including metatag_verification that will allow you to insert a google-site-verification tab. Instructions
Add a UI to easily create scaffolding for new modules (including hooks, plugins, permissions etc.) NB: first, you need to download drupal-code-builder from GitHub and place it in a /libraries top-level directory (see module builder's README.txt). You can preview and edit the output files before writing to disk - and each module's configuration is saved as a node, so you can add another hook etc. at a later date, regenerate the files and copy/paste the extra things you need. Video walkthrough.
Acquia will no longer support or maintain Mollom from April 2018. Spam filtering SaaS from Acquia. Free for up to 50 "ham" messages a day. Scans message then provides a captcha if appropriate, scores each message for reputation, spam etc. I never tried this module and anecdotally I've seen mixed reports / people suggesting it's not all that good.
For those familiar with WordPress, this is the equivalent of the ACF repeater field. You can create paragraph types, which are collections of one or more fields, and the user can add as many of them as they like. So you could have distinct paragraph styles, e.g. with images aligned in a certain way, or a page consisting of parallax backgrounds etc.
Lots of constraints (length, types of characters etc. also delay and check against previously used passwords.) D8 alpha.
Generates URL aliases for new content automatically - using token-based patterns per content type - e.g. /reports/[node:title]
When you install this, the settings are in /admin/config/search/path – normally this page has no tabs, with this module you get Patterns, Settings, Bulk Generate, Delete Aliases).
Render a file field with one of several PDF readers. Mixed success with pdf.js support - seems to force a full screen view.
Allows you to prefill form fields by supplying values in a query string. Syntax (also in readme) Useful for bookmarklets. D8 alpha version.
Add redirects, including specifying from the full range of HTTP codes (e.g 307 Temporary). Won't let you redirect from the homepage, use Config > Basic Site Settings for that.
Only loads the parts of page that change when navigating between pages.
Currently in alpha.
|Restrict Login or Role Access by IP Address||
Can specify single IP address or ranges. Two modes: restrict login, so they can only login from certain IPs, and restrict role, so they can login from anywhere but only access a role's permissions from the defined IPs. There's a D8 dev branch, last updated June 2016.
Shows a long checklist, split over a series of tabs, you can tick off items and some (e.g. modules you need to install) are auto-detected. See Module of the Week blog post.
Provides a block with a tag cloud of chosen taxonomy term. Works but a bit buggy, e.g. UI taxonomy setting reverts to 'tags'. Requires clearing the cache to update (including changing any settings). Choice of numbers after each tag to indicate quality, or 'wordcloud' style with varying sizes (will need you to modify your CSS to add some spacing between words).
Telephone number field type. This is in core, but you need to enable it.
Adds a user interface for browsing tokens (the tags you can insert into various fields).
Adds a trash bin for all content, so you may later restore (or permanently delete) it. Depends on Content Moderation module. Alpha in D8.
Use Xdebug breakpoints in Twig templates -
|Two Factor Authentication||
install tfa and ga_login (TFA is just a framework, it doesn't come with it's own login plugins.)
Use this patch I wrote - it adds display of validation skip times and an admin reset button for users who are got locked out.
My installation instructions:
Next you need to generate an encryption profile.
Set key provider to File rather than Configuration, this means the key won't end up in your version control.
Tick the 'strip trailing line breaks' box to avoid the "The selected key size does not match the actual size of the key." error
Key path should be relative to Drupal so the config will work on multiple sites
Remember to save the key somewhere in your password manager, or your ansible variables, in case you lose the files later.
In the TFA settings (/admin/config/people/tfa) you probably want to increase the number of times a user can skip validation.
Note that TFA has a separate 'Tfa user login' block (replacing the ordinary 'User login')
|Unique field ajax||
Gives you a checkbox for 'Unique' when editing fields - can have it checked during form entry (via AJAX) and specify a custom error message per field. Seems to have bug where field you're checking is sometimes refocused (even if no errors) if you've already tabbed away from it and continued typing.
A fork of the System Status module, but with a Symfony app for you to install to act as a server, rather than using a paid third-party service. Monitor core/module update status of multiple Drupal sites. If you're familiar with Nagios and NRPE, it's a little bit like that, but for Drupal modules, and more lightweight. Note the server uses MongoDB, so you need to install that, plus the PHP extension, and it communicates with a public key-pair, though it should set that up itself.
Install the devel module first. The profile is a toolbar at the bottom of the screen. Features:
Tip: there are further reports ("collectors") you can turn on in the module preferences, and there's a shortcut to these from the menu in the first icon (Drupal logo). The toolbar is only a summary, all icons are clickable to view a full report. Each report is saved in the DB for later reading.
This module was ported from Symfony