_ [ruby][rails] Rails 勉強会＠関西 第5回

いよいよ明後日です。もうちょっとせなあかんことが残ってるような気もしますが、 まぁ何とかなるでしょう。是非ご参加ください。

_ [rails] AR.create

new はブロックを取るのに、create は取らないんですねぇ。

tag = Tag.new{|t| t.name = "rails"}
tag.name #=> "rails"
tag = Tag.create{|t| t.name = "rails"}
tag.name #=> nil

こんな感じ？

Index: activerecord/lib/active_record/base.rb
===================================================================
--- activerecord/lib/active_record/base.rb	(リビジョン 4780)
+++ activerecord/lib/active_record/base.rb	(working copy)
@@ -439,11 +439,11 @@
 
       # Creates an object, instantly saves it as a record (if the validation permits it), and returns it. If the save
       # fails under validations, the unsaved object is still returned.
-      def create(attributes = nil)
+      def create(attributes = nil, &block)
         if attributes.is_a?(Array)
-          attributes.collect { |attr| create(attr) }
+          attributes.collect { |attr| create(attr, &block) }
         else
-          object = new(attributes)
+          object = new(attributes, &block)
           scope(:create).each { |att,value| object.send("#{att}=", value) } if scoped?(:create)
           object.save
           object
@@ -1159,7 +1159,7 @@
         #
         # It's even possible to use all the additional parameters to find. For example, the full interface for find_all_by_amount
         # is actually find_all_by_amount(amount, options).
-        def method_missing(method_id, *arguments)
+        def method_missing(method_id, *arguments, &block)
           if match = /find_(all_by|by)_([_a-zA-Z]\w*)/.match(method_id.to_s)
             finder, deprecated_finder = determine_finder(match), determine_deprecated_finder(match)
 
@@ -1197,7 +1197,7 @@
 
             options = { :conditions => construct_conditions_from_arguments(attribute_names, arguments) }
             set_readonly_option!(options)
-            find_initial(options) || send(instantiator, construct_attributes_from_arguments(attribute_names, arguments))
+            find_initial(options) || send(instantiator, construct_attributes_from_arguments(attribute_names, arguments), &block)
           else
             super
           end

やりたいことは、まだこの先にあるんだけど。