drupal 7

Filter/Search on multiple fields with Views 3.x

A common need I run into with a ton of Drupal sites and Views is searching/filtering content based on multiple fields. For example, a lot of people would like to search for content using either the Title or the Body for a particular content type.

There are two primary solutions offered for this situation, but they both have downsides or are overly complex, in my opinion:

  • Use the Computed Field module to create yet another field stored in the database, combining the two (or more) fields you want to search, then expose a filter for that field instead of both of the individual fields. (I don't like this because it duplicates content/storage, and involves an extra module to do so).
  • Use the Views Filters Populate to invisibly populate a second field that you've added to a views OR group (using Views OR in Views 2.x, or the built-in AND/OR functionality in Views 3.x). (This module is slightly limited in that you can only work with strings, and again, it involves an extra module).

Instead of using an extra module, I simply do the following to achieve a multi-field search:

Using Batch API to build huge CSV files for custom exports

Flocknote is a large web application that lets churches easily manage communications with their members via email, text message, and phone calls. Many of the core features of email marketing services like MailChimp and Constant Contact are implemented in flocknote similarly, such as list management and mass emailing (and many features like shared list/member information management, text messaging, etc. are unique to flocknote).

Until recently, few groups using flocknote didn't have subscription lists that were big enough to hit our relatively high PHP max_time_limit setting when importing and exporting subscriber data. Since we're getting bigger, though, I've started implementing Batch API all over the place so user-facing bulk operations could not only complete without resulting in a half-finished operation, but could also show the end user exactly how much has been done, and how much is left:

Exporting List Subscribers - Batch API CSV Export

I've seen many tutorials, blog posts, and examples for using Drupal's Batch API for importing tons of data, but very few (actually, none) for exporting tons of data—and specifically, in my case, building a CSV file with tons of data for download. The closest thing I've seen is a feature request in the Webform issue queue: Use BatchAPI to Export very large data sets to CSV/Excel.

Before I get started, I want to mention that, for many people, something like Views Data Export (for getting a ton of data out of a View) or Node Export (specifically for exporting nodes) might be exactly what you need, and save you a few hours' time working with Batch API. However, since my particular circumstance ruled out Views, and since I was exporting a bit more customized data than just nodes or users, I needed to write my own batch export functionality.

A First Timer's Guide to DrupalCon

Preparing for your first DrupalCon? Even if this isn't your first, here are a few tips and tidbits I've learned from my first DrupalCon last year, and would like to pass on to you. (I'm posting this now so you have time to order the things you need to make your conference experience better and get it shipped!).

Keep things you need handy

I expected to have some downtime every now and then to run back to my hotel room and grab something I needed for later in the day (like a power cord), but quickly realized that I wouldn't have downtime. Instead, I ended up attending many awesomesauce presentations, BoFs (Birds of a Feather gatherings), core conversations, and informal meetings continuously, from the time I got into the convention floors until about 8 p.m. (and later!).

Bring a bag large enough to hold your laptop or iPad, a charger, a few snacks (granola bars are great!), and any other little devices or chargers you'll need during the day.

Power to the People!

Monster Outlets to GoHotels and convention centers have a very low AC outlet / conference attendee ratio. Usually something like 1:100. Most laptops' batteries last 3-5 hours. You're going to have your laptop on and with you all day, and the battery will die if you don't charge up every now and then.

One of the best things you can do, especially if you want people to not hate you for hogging an entire outlet for one laptop charger, is buy a travel power strip, like the one I bought for this year's DrupalCon—Monster's Outlets to Go Powerstrip*. There are a few other options out there, but I like this one the most due to its compactness. Some adapters even include or two USB plugs (though not all are created equal—check to make sure the USB plugs provide enough power to charge your device!).

Instead of hogging a wall jack all to yourself, you can now power one or two of your own devices, and let one or two other people charge their devices.

For non-US residents, be sure you have the proper power adapters for your devices!

Don't only go to sessions

I made the mistake of trying to attend every session that piqued my interest last year. It wasn't until the last day of the conference that I hopped out of a session that had lost my interest and found that I was missing some of the best parts of DrupalCon:

  • Birds of a Feather gatherings (people basically come together and talk about/work through things things they have in common, like newspaper websites, Church sites, or a passion for DevOps!).
  • Core Conversations (people who want to make Drupal and Drupal.org better come together and, well, make Drupal and Drupal.org better).
  • The Expo area (talking to some of the people in Drupal consultancies, or people from hosting providers, or anyone else on the expo floor, is pretty enriching).
  • The community (getting to meet people I converse with every week on drupal.org, in IRC, etc. is awesome).

Creating an Image Effect to put a play button on Video thumbnails

I had a rather interesting feature to implement on flocknote lately (after doing a pretty vast redesign of the UX/UI on the site over the past month... it was refreshing to dig into PHP again!):

We want to allow insertion of YouTube and Vimeo (and potentially other) videos into 'Notes' on the site, and there are a few moving parts in this equation:

  • I had to create a text format filter similar to the 'Embedded media inline' module in Drupal 6 so people could simply put a 'merge tag' in their Note (like [video=URL]) where they want the video to appear.
  • When a user views the embedded video on the site, the video should show at a uniform width/height, and be able to play the video (basically, a merge tag the user enters should be converted to the proper embed code for the provider (in this case, an <iframe> with the proper formatting).
  • When a user sees the video in the note email, the video can't actually play since very few email clients support any kind of video embedded in an email. So, instead, the video shows as a frame with a play button on top (this is the trickiest part), and links to the video on YouTube, Vimeo, etc.

Creating my own Image Effect for a Video Play Button

What I wanted to end up with was an image that had a custom-made iOS-style play button (play icon in a circle with a translucent grey background) right in the middle (I like the simple look of videos on my iPad...):

Video Play Button Example

So, I decided to work with Drupal's Image Effect API and expose a new image effect, aptly named 'Video Play Button', to Drupal's simple set of 'Resize, Scale, etc.' image effects. This is a pretty simple process:

Moving Comments into a Block - Drupal 7

Most of the time, Drupal's convention of printing comments and the comment form inside the node template (node.tpl.php) is desirable, and doesn't cause any headaches.

However, I've had a few cases where I wanted to either put comments and the comment form in another place on the page, and in the most recent case, I asked around to see what people recommended for moving comments out of the normal rendering method. I found a few mentions of using Panels, and also noticed the Commentsblock module that does something like this using Views.

However, I just wanted to grab the normal comment information, and stick it directly into a block, and put that block somewhere else. I didn't want Views' overhead, or to have to re-theme and tweak things in Views, since I already have a firm grasp of comment rendering and form theming with the core comment display.

So, I set out to do something similar to this comment on drupal.org (which was also suggested by Jimajamma on Drupal Answers).

Pages

Subscribe to RSS - drupal 7