先日の金曜日に、社内でnamed_scopeの勉強会をやりました。 RubyKaigiで松田さんがしゃべった話がたいそう面白かったので、実際にnamed_scopeの実装を見てみよう、というテーマです。 | View | Upload your own 調べて改めて思ったんですが、これはまたよくできてますね。 method_missingを活用しまくっているという意味ではいつもの「イヤな予感」がするんですが、使い方がキレイで脱帽です。このあたりの「味わい」はスライド後半のコールシーケンスをご覧ください。複雑なことをやっているんですが、一度わかるとものすごく腑に落ちる感じが、何ともうまいですよね。うん。 今回取り上げたのはリリース版(AR2.1)のnamed_scopeですが、現時点でもいろんな機能が追加されてますのでまた先々も楽しみです。Railsレシピブックも改版する機会があったら(今回
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2008年7月27日のブックマーク (3件)
-
elim 2008/07/27
[[rails][named_scope]]moro++リンク -
-
tokuhirom blog
Blog Search when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${entry.path} [in template "__entry.ftlh" at line 3, column 25] - Reached through: #include "__entry.ftlh" [in template "entry.ftlh" at
-
- 2008年7月29日
- 2008年7月27日
- 2008年7月25日
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