Allow id to be string to support not integer ids (postgresql uuid)

lib/rectify/form.rb

@@ -5,7 +5,7 @@ class Form
 
     attr_reader :context
 
-    attribute :id, Integer
+    attribute :id, String
 
     def self.from_params(params, additional_params = {})
       params_hash = hash_from(params)
@@ -55,7 +55,11 @@ def self.hash_from(params)
     end
 
     def persisted?
-      id.present? && id.to_i > 0
+      id.present?
+    end
+
+    def new_record?
+      id.blank?
     end
 
     def valid?(context = nil)

spec/lib/rectify/form_spec.rb

@@ -56,7 +56,7 @@
     it "populates the id from a params hash" do
       form = UserForm.from_params(params)
 
-      expect(form.id).to eq(1)
+      expect(form.id).to eq('1')
     end
 
     it "populates other root level values from a params hash" do
@@ -271,23 +271,15 @@
       end
     end
 
-    context "when the form id is zero" do
-      it "returns false" do
-        form = UserForm.new(:id => 0)
-
-        expect(form).not_to be_persisted
-      end
-    end
-
-    context "when the form id is less than zero" do
+    context "when the form id is blank" do
       it "returns false" do
-        form = UserForm.new(:id => -1)
+        form = UserForm.new(:id => "")
 
         expect(form).not_to be_persisted
       end
     end
 
-    context "when the form id is blank" do
+    context "when the form id is nil" do
       it "returns false" do
         form = UserForm.new(:id => nil)
 
@@ -325,7 +317,7 @@
       it "returns an array containing the id" do
         form = UserForm.new(:id => 2)
 
-        expect(form.to_key).to eq([2])
+        expect(form.to_key).to eq(['2'])
       end
     end