drupal planet

Prefill the Subject of a Privatemsg Message

I've had a nice go at making private messaging capabilities for flockNote work a lot nicer than the out-of-the-box Privatemsg module experience, by simplifying everything to the point that it's closer to the Facebook Direct Message system than the normal Privatemsg UX. (Privatemsg is the premiere way of handling private messaging in Drupal. It's already awesome out of the box... just needed a bit more help for our particular site ;-).

One thing I had wanted to do for a while is prefill the subject field of certain messages. I already have the new private message page appear inside an overlay popup after a user clicks on a link to send a private message to another user on the site.

Privatemsg prefill subject

WYSIWYG Editing (contentEditable support) in iOS 5

I haven't seen much about this feature yet, so I figured I'd put it through its paces and share what I found. WYSIWYG editing on iOS devices is finally here! For a long time, contentEditable support has been lacking on iPads, iPhones, and iPod Touches, and it's been slightly annoying, as the only way to add richly-formatted text on these devices was doing a two-step through finding the carat characters and writing the HTML yourself.

Plus, some WYSIWYG editors (like TinyMCE) simply disabled the WYSIWYG from attaching to a textarea if it detected an iOS device. No longer, however: I've tested CKEditor (latest nightly) and TinyMCE (latest nightly), and both work perfectly (surprisingly well, in fact!) on the iPad running iOS 5 beta 6:

iPad 2 WYSIWYG TinyMCE Editing

Using Migrate to Import Content from a Legacy Database

Since a few people who missed last night's St. Louis Drupal meetup wanted to hear more about Migrate module and my notes from a recent content migration for flockNote, I thought I'd post my observations and some tips here.

Migrate Module, v2

My prior experience with Migrate was on version 1.x, along with Table Wizard, for Drupal 6 (I used it in tandem with a bunch of CSV files that were used to import organizational data into the Archdiocese of St. Louis' website). A lot has changed in the process of Migrate upgrading from 1.x to 2.x... especially with Drupal 7!

jQuery Code to Select Textarea or Text Input Field when Selected

On one Drupal site I'm developing, there is an 'embed code generator' in one of the site's forms. This embed code capability is similar to Twitter's embeddable timeline widget, in that a user can select some parameters (colors, mostly), then some code (usually an iframe with the contents provided by an external site) is printed in a textarea, which the user can select, and paste into his own site's HTML.

To help the user in the task of selecting the code, the entire contents of the textarea or textfield is highlighted when the user clicks any part, which ensures that the user will get every last bit of code without having to select and drag his mouse around the text box (sometimes I've seen people missing part of a tag, which makes the embed fail to load). That's what we want to do, inside our own Drupal form.

First, in the drupal form itself (or via an hook_form_alter()), we need to attach a javascript file in our custom module (in this example, I assume you have a module called custom.module, and a js file named 'custom.select-helper.js' in your custom module's directory, inside a 'js' folder):

Introducing the Honeypot form spam protection module for Drupal

Now that I've released a Drupal 6 backport of what I originally wrote as a Drupal 7 module, I figured I would write a little bit in the way of introducing one of the simpler, and more user-friendly ways of controlling spam in Drupal (as opposed to other also-helpful methods, like Mollom, CAPTCHA, etc.).

I'd like to thank Flocknote for giving me the development time to work on this module, as we needed something like it for the new 'version 3' launch of www.flocknote.com.

MySQL General Errors on MAMP/WAMP/XAMPP

I've been getting errors like General error: Can't create/write to file, Error 2006: MySQL server has gone away, and other similar PDOExceptions and errors from time to time while developing on my Mac using MAMP Pro (this seems to happen more often with Drupal 7 sites than Drupal 6, for reasons I know not). I've noticed a few other developers are getting these errors too, and almost always on local environments as opposed to live servers.

I found that the easiest way to deal with them is by giving MySQL a nice buffer of memory via the max_allowed_packet and innodb_buffer_pool_size settings. Just bump those up to 256M or higher, and the errors above should go away. (In MAMP Pro, just go to File > Edit Templates > my.cnf, and search for those variables. Uncomment the innodb_buffer_pool_size variable if it's commented out.

All the Hubbub About Drupal 7

Drupal 7. Is it ready?

That seems to be the general question in the air over the past few weeks discussed by many in the community. There's a problem with this question, though... I think many people look at their particular use cases, determine Drupal 7 to not (yet) be a good fit, then declare all things Drupal 7 to be lacking.

Really, though, are things so bad? I've seen hundreds of sites on Drupal Gardens that are beautiful and functional. I've upgraded two of my simpler Drupal 6 sites to Drupal 7. I've built a total of fifteen Drupal 7 sites—some serving more than 10,000 visitors a day, others serving a hundred or two (and almost all on shared hosting!)—and am working on three others. So, for me, the question 'Is Drupal 7 ready for prime-time?' doesn't make sense. It's already there (I haven't started a new project on Drupal 6 for six months now).

Dreaming in Drupal

How do you know you've been thinking about work too much? When your wife relates a conversation she had with you in the morning, and you don't remember a word, but can definitely see how what you said relates to what you're working on:

Saith my wife: "Jeff, how do you set your alarm?"

My (groggy) reply: "Hit field, the arrow, then default."

Now, this could possibly have something to do with alarm clocks. There are often arrows on them, and you hit buttons... but I know better. I was referring to:

$this->addFieldMapping('field', 'source')->defaultValue(0);

...which I have probably typed about 100 times in the past week, and maybe 20 or so last night during a late-night debugging session with the Migration process of flockNote v2 to v3 (from a proprietary WAMP-based system to a new Drupal 7 LAMP-based system).

Adding Images to Search Results (Drupal Search)

For a while (earlier in my Drupal career), I was avoiding adding imagefield-attached images to nodes that appeared in my search results, because I remember the first time I tried doing so, I was still quite confused by the way drupal handled search results theming.

Well, after another crack at it, I finally have a nice, performant way of displaying images from nodes added via imagefields (or in drupal 7, image fields) inline with search results, and it didn't require much work at all!

Images in Search Results

The image above shows inline images for LOLSaints.com, a site which uses Midwestern Mac's Hosted Apache Solr search service to return results quickly and allows faceting, etc. using the excellent Apache Solr Search Integration module. But the technique I'm using works equally well with built-in (but slower) Drupal core search module's results.

Programmatically adding and removing roles to users in Drupal

[UPDATE: Here is a much simpler method for editing a user's roles.]

I thought there might be some sort of API function that allows me to add a user role to a user object by the role id (rid), but after looking at user_save() and some other information around the Drupal universe (like this thread), it looks like it's not as easy as I'd hoped. Definitely not like node_save(), where you just modify the node object, save it, and you're done!

I wrote this helper function that you could stick in your own custom module (tested with Drupal 7), which lets you add roles as simply as:

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