Full of Ambition — err.the_blog
This idea has been kicked around a whole lot, I know. In IRC. Dark alleyways. Sweaty dance halls. Courts of law. It’s this: instead of writing SQL, write Ruby. Generate the SQL behind the curtain. Something like this: User.detect { |u| u.name == 'Jericho' && u.age == 22 } Or this: User.select { |u| [1, 2, 3, 4].include? u.id } Or even this: User.select { |u| u.name =~ 'rick' }.sort_by(&:age) It’d
nick - HasFinder -- It's Now Easier than ever to create complex, re-usable SQL queries
HasFinder is an extension to ActiveRecord that makes it easier than ever to create custom find and count queries. Let's start with an example. Suppose you have an Article model; some articles are published, some are popular. Let's declare finders for each of these notions. You may be tempted to write something like the following: class Article < ActiveRecord::Base def self.published find(:all, :co
has_many :through - When associations aren't enough, part 2
After I posted part 1 this morning, the inimitable Peter Cooper left a comment of a very different way to get the same results. I'd been thinking about using my approach to do tagging, and wasn't too happy with it. Doing two or three joins is one thing, but doing a dozen or so is another matter and likely to make a database cranky. And with a spiffy tagging UI, you can expect users to be filtering
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