<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>named_scope (ActiveRecord::NamedScope::ClassMethods)</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="../../../.././rdoc-style.css" type="text/css" media="screen" /> </head> <body class="standalone-code"> <pre><span class="ruby-comment cmt"># File lib/active_record/named_scope.rb, line 85</span> <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">named_scope</span>(<span class="ruby-identifier">name</span>, <span class="ruby-identifier">options</span> = {}, <span class="ruby-operator">&</span><span class="ruby-identifier">block</span>) <span class="ruby-identifier">name</span> = <span class="ruby-identifier">name</span>.<span class="ruby-identifier">to_sym</span> <span class="ruby-identifier">scopes</span>[<span class="ruby-identifier">name</span>] = <span class="ruby-identifier">lambda</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">parent_scope</span>, <span class="ruby-operator">*</span><span class="ruby-identifier">args</span><span class="ruby-operator">|</span> <span class="ruby-constant">Scope</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">parent_scope</span>, <span class="ruby-keyword kw">case</span> <span class="ruby-identifier">options</span> <span class="ruby-keyword kw">when</span> <span class="ruby-constant">Hash</span> <span class="ruby-identifier">options</span> <span class="ruby-keyword kw">when</span> <span class="ruby-constant">Proc</span> <span class="ruby-identifier">options</span>.<span class="ruby-identifier">call</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) <span class="ruby-keyword kw">end</span>, <span class="ruby-operator">&</span><span class="ruby-identifier">block</span>) <span class="ruby-keyword kw">end</span> (<span class="ruby-keyword kw">class</span> <span class="ruby-operator"><<</span> <span class="ruby-keyword kw">self</span>; <span class="ruby-keyword kw">self</span> <span class="ruby-keyword kw">end</span>).<span class="ruby-identifier">instance_eval</span> <span class="ruby-keyword kw">do</span> <span class="ruby-identifier">define_method</span> <span class="ruby-identifier">name</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-operator">*</span><span class="ruby-identifier">args</span><span class="ruby-operator">|</span> <span class="ruby-identifier">scopes</span>[<span class="ruby-identifier">name</span>].<span class="ruby-identifier">call</span>(<span class="ruby-keyword kw">self</span>, <span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span> <span class="ruby-keyword kw">end</span></pre> </body> </html>