allow :find_by option to be full find method name - closes #335

spec/cancan/controller_resource_spec.rb

@@ -336,6 +336,14 @@ describe CanCan::ControllerResource do
     @controller.instance_variable_get(:@project).should == project
   end
 
+  it "should allow full find method to be passed into find_by option" do
+    project = Project.create!(:name => "foo")
+    @params.merge!(:action => "show", :id => "foo")
+    resource = CanCan::ControllerResource.new(@controller, :find_by => :find_by_name)
+    resource.load_resource
+    @controller.instance_variable_get(:@project).should == project
+  end
+
   it "should raise ImplementationRemoved when adding :name option" do
     lambda {
       CanCan::ControllerResource.new(@controller, :name => :foo)

spec/spec_helper.rb

@@ -30,4 +30,12 @@ end
 class Project < SuperModel::Base
   belongs_to :category
   attr_accessor :category # why doesn't SuperModel do this automatically?
+
+  def self.respond_to?(method, include_private = false)
+    if method.to_s == "find_by_name!" # hack to simulate ActiveRecord
+      true
+    else
+      super
+    end
+  end
 end