From c8b36e07325abec4e9d5b1dff489eca391575206 Mon Sep 17 00:00:00 2001
From: Alexander Korsak <alex.korsak@gmail.com>
Date: Sat, 28 Apr 2012 12:57:00 +0300
Subject: [PATCH 1/4] Include uniquify module to active record if defined

---
 lib/uniquify.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/uniquify.rb b/lib/uniquify.rb
index d4da9cf..84b99f6 100644
--- a/lib/uniquify.rb
+++ b/lib/uniquify.rb
@@ -30,6 +30,8 @@ def uniquify(*args, &block)
   end
 end
 
-class ActiveRecord::Base
-  include Uniquify
+if defined?(ActiveRecord)
+  class ActiveRecord::Base
+    include Uniquify
+  end
 end

From f0d35a1b06dced83b7c6eb30299076ad7ff45ff9 Mon Sep 17 00:00:00 2001
From: Alexander Korsak <alex.korsak@gmail.com>
Date: Sat, 28 Apr 2012 18:31:56 +0300
Subject: [PATCH 2/4] Move search condition by uniquify field to the scoped

---
 lib/uniquify.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/uniquify.rb b/lib/uniquify.rb
index 84b99f6..5d57618 100644
--- a/lib/uniquify.rb
+++ b/lib/uniquify.rb
@@ -6,7 +6,7 @@ def self.included(base)
   def ensure_unique(name)
     begin
       self[name] = yield
-    end while self.class.exists?(name => self[name])
+    end while self.class.scoped(:conditions => { name => self[name] }).exists?
   end
 
   module ClassMethods

From 6cd15d0f796327bdd74df20e3955c18f6afaaaf5 Mon Sep 17 00:00:00 2001
From: Alexandr Korsak <alex.korsak@gmail.com>
Date: Sun, 1 Jul 2012 18:35:25 +0300
Subject: [PATCH 3/4] Add support for datamapper objects

---
 lib/uniquify.rb | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/lib/uniquify.rb b/lib/uniquify.rb
index 5d57618..fcafae6 100644
--- a/lib/uniquify.rb
+++ b/lib/uniquify.rb
@@ -6,7 +6,11 @@ def self.included(base)
   def ensure_unique(name)
     begin
       self[name] = yield
-    end while self.class.scoped(:conditions => { name => self[name] }).exists?
+    end while uniquify_exists?(name)
+  end
+
+  def uniquify_exists?(name)
+    self.class.scoped(:conditions => { name => self[name] }).exists?
   end
 
   module ClassMethods
@@ -15,7 +19,7 @@ def uniquify(*args, &block)
       options = { :length => 8, :chars => ('a'..'z').to_a + ('A'..'Z').to_a + ('0'..'9').to_a }
       options.merge!(args.pop) if args.last.kind_of? Hash
       args.each do |name|
-        before_validation :on => :create do |record|
+        before_validation :on => :create  do |record|
           if block
             record.ensure_unique(name, &block)
           else
@@ -35,3 +39,21 @@ class ActiveRecord::Base
     include Uniquify
   end
 end
+
+if defined?(DataMapper)
+  module Uniquify
+    def uniquify_exists?(name)
+      not self.class.all(name => self[name]).empty?
+    end
+
+    module ClassMethods
+      def before_validation options = {}, &block
+        self.class_eval do
+          before :valid? do
+            block.call(self)
+          end
+        end
+      end
+    end
+  end
+end

From 5e5a91e2137ced5d0bfbe8a3b9dcaff606e1dd39 Mon Sep 17 00:00:00 2001
From: Alexandr Korsak <alex.korsak@gmail.com>
Date: Wed, 18 Jul 2012 19:27:59 +0300
Subject: [PATCH 4/4] Generate unique key for datamapper on create

---
 lib/uniquify.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/uniquify.rb b/lib/uniquify.rb
index fcafae6..88b323b 100644
--- a/lib/uniquify.rb
+++ b/lib/uniquify.rb
@@ -49,7 +49,7 @@ def uniquify_exists?(name)
     module ClassMethods
       def before_validation options = {}, &block
         self.class_eval do
-          before :valid? do
+          before :create do
             block.call(self)
           end
         end