Split out text value handling

lib/semiformal/input.rb

@@ -19,7 +19,7 @@ def html_id
       "#{@prefix}_#{name}"
     end
 
-    def string_value
+    def to_s
       @value.to_s
     end
 

lib/semiformal/renderer.rb

@@ -35,7 +35,7 @@ def input(name)
       label = content_tag(:label, name.to_s.titleize, :for => html_id)
       input_html = tag(:input, :type  => 'text',
                                :name  => input.param_name,
-                               :value => input.string_value,
+                               :value => input.to_s,
                                :id    => html_id)
       content_tag(:li, label + input_html)
     end

lib/semiformal/resource.rb

@@ -1,4 +1,5 @@
 require 'semiformal/input'
+require 'semiformal/text_value'
 
 module Semiformal
   # Defines accepted parameters, conversions, and generated input names for
@@ -32,7 +33,7 @@ def to_key
     def input(input_name)
       Input.new(:name   => input_name,
                 :prefix => name,
-                :value  => target.send(input_name))
+                :value  => TextValue.new(target.send(input_name)))
     end
 
     private

lib/semiformal/text_value.rb

@@ -0,0 +1,15 @@
+module Semiformal
+  class TextValue
+    def initialize(value)
+      @value = value
+    end
+
+    def to_s
+      @value.to_s
+    end
+
+    def ==(other)
+      to_s == other.to_s
+    end
+  end
+end

spec/semiformal/input_spec.rb

@@ -14,8 +14,8 @@
     build_input(:prefix => "user", :name => "address").html_id.should == "user_address"
   end
 
-  it "has a #string_value" do
-    build_input(:value => 10).string_value.should == "10"
+  it "has a #to_s" do
+    build_input(:value => 10).to_s.should == "10"
   end
 
   it "is #== with the same name, prefix, and value" do

spec/semiformal/resource_spec.rb

@@ -54,7 +54,7 @@
 
     it "sets the value" do
       target.title = "Hello"
-      subject.string_value.should == "Hello"
+      subject.to_s.should == "Hello"
     end
   end
 end

spec/semiformal/text_value_spec.rb

@@ -0,0 +1,17 @@
+require 'spec_helper'
+require 'semiformal/text_value'
+
+describe Semiformal::TextValue do
+  it "converts #to_s" do
+    value = Semiformal::TextValue.new(:value)
+    value.to_s.should == "value"
+  end
+
+  it "is #== with the same value" do
+    Semiformal::TextValue.new("test").should == Semiformal::TextValue.new("test")
+  end
+
+  it "isn't #== with a different value" do
+    Semiformal::TextValue.new("test").should_not == Semiformal::TextValue.new("other")
+  end
+end