In part I, we discussed the basics of implementing a simple search functionality using the MySQL fulltext search index. In this post, we will build on those concepts, exploring paging, sorting, mixed data search, filtering and InnoDB.

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Our CSS Diff tool beta is now public!

In one of our recent contracts, we encountered a problem. The design team was using a content management system to maintain the non-transactional portions of their website, while the engineering team was building a tomcat/spring web application to handle shopping cart and search functionality. The content management system (OpenCMS) was its own versioning system and was largely incompatible with the CVS instance that the engineers were using for the web application. The result of this was that there were two sets of stylesheets for both sides of the application. As marketing and content personnel made changes in OpenCMS, the CSS stored there began to diverge from the copy the engineers were using and altering.

As we approached production, it became necessary to merge the CSS into a single file, but by that point both branches were upwards of 4000 lines each and had diverged wildly. Throwing both files into a traditional line based file differ was useless as one of the files had been passed through a sanitizer at some point earlier in its lifespan and its format was far too different. What was needed was a diff utility that understood CSS.

For this purpose, I wrote CSS Diff. Using the wc3 css parser libraries, the tool loads and parses each of the diverging css diff files into an internal representation, and comparing these representations, thus showing the substantive differences while ignoring the ordering, formating, and syntax ambiguity. It worked wonderfully, showing us which selectors are unique in each file, which selectors conflicted, as well as the attributes of the selectors that were in conflict.

Part I - The FULLTEXT index and BOOLEAN search language

Searching is one of the most fundamental and common features of the web. We are all used to having powerful search engines such as Google at our fingertips, both for searching the glut of information available on the Internet at large, as well as for indexing our own web sites to provide a search mechanism to our own users.

(more…)

As you might have noticed, Gordian Labs has a new look and feel for our internet presence. We’ve been focused on consulting work and product development for a while, but we’re going to be making more of our work openly available on the web. Hopefully you’ll enjoy some of our articles and products. Thanks to Yogeeta for developing the core Gordian Labs branding. Brahm has also created a new site design for Runometer that looks quite nice. Thanks, Brahm!

Runometer has crossed the 10,000 mile mark today… and what a trip it has been! Thanks to runner Teebo for taking us over this (quite literal) milestone, and thanks to all our users and supporters for continuing to use the site, giving us very valuable feedback and most of all, continuing to run!

Runometer now vends narrow sidebar badges in addition to the normal (wider) horizontal images. Runometer weblog badges make it easy to publish your latest runs and statistics in your blog or website. Show off your latest run and route just like the badge at right. Or you can include aggregate statistics across many runs or a listing of several recent runs if you want to include more detail. Show off your progress to friends and visitors.

We’ve added support for uploading your run data from Garmin and MotionBased devices to Runometer. If you have a Garmin ForeRunner you can now have your maps created for you automatically!

A number of websites have featured Runometer in the last few days. Starting with a nice little feature in Hack a Day, we also got picked up by Engadget, Podofile, The Unofficial Apple Weblog, and Lifehacker. Thanks for all the mentions!