From a3e4e3a39738a0692732a3f2bc51f1ca5c8e3a70 Mon Sep 17 00:00:00 2001
From: Patrick J Cherry <patrick@bytemark.co.uk>
Date: Wed, 28 Nov 2012 09:38:12 +0000
Subject: Finalised hack to validations such that they only occur when the
 object is dirty.

---
 lib/dm-validations-with-empty-errors-hack.rb | 22 +++--------
 test/tc_mauve_database_peculiarities.rb      | 57 ++++++++++++++++++++++++++++
 2 files changed, 63 insertions(+), 16 deletions(-)

diff --git a/lib/dm-validations-with-empty-errors-hack.rb b/lib/dm-validations-with-empty-errors-hack.rb
index 3916451..827f1d0 100644
--- a/lib/dm-validations-with-empty-errors-hack.rb
+++ b/lib/dm-validations-with-empty-errors-hack.rb
@@ -3,23 +3,14 @@ require 'dm-validations'
 module DataMapper
   module Validations
     #
-    # Rewrite save method to save without validations, if the validations failed, but give no reason.
+    # This only performs validations if the object being saved is dirty.
     #
-    # @api private
     def save_self(*)
-      if Validations::Context.any? && !valid?(model.validators.current_context)
-        #
-        # Don't do anything unusual if there is no logger available.
-        #
-        return false unless self.respond_to?("logger")
-
-        if self.errors.empty?
-          logger.warn "Forced to save #{self.inspect} without validations due to #{self.errors.inspect}."
-          super
-        else
-          logger.warn "Failed to save #{self.inspect} with validations due to #{self.errors.inspect}."
-          false
-        end
+      # 
+      # short-circuit if the resource is not dirty
+      #
+      if dirty_self? && Validations::Context.any? && !valid?(model.validators.current_context)
+        false
       else
         super
       end
@@ -28,4 +19,3 @@ module DataMapper
 end
 
 
-
diff --git a/test/tc_mauve_database_peculiarities.rb b/test/tc_mauve_database_peculiarities.rb
index 58b73f3..fa21553 100644
--- a/test/tc_mauve_database_peculiarities.rb
+++ b/test/tc_mauve_database_peculiarities.rb
@@ -78,6 +78,63 @@ class TcMauveDatabasePostgresPeculiarities < TcMauveDatabasePeculiarities
     super
     (system("dropdb #{@temp_db}") || puts("Failed to drop #{@temp_db}")) if @temp_db
   end
+
+
+  def test_reminders_only_go_once
+    config=<<EOF
+server {
+  database "#{@db_url}"
+  use_notification_buffer  false
+}
+
+notification_method("email") {
+  debug!
+  deliver_to_queue []
+  disable_normal_delivery!
+}
+
+person ("test1") {
+  email "test1@example.com"
+  all { email }
+  suppress_notifications_after( 1 => 1 )
+}
+
+alert_group("default") {
+  notify("test1") {
+    during{ true }
+    every 1.minute
+  }
+}
+EOF
+    Configuration.current = ConfigurationBuilder.parse(config)
+    notification_buffer = Configuration.current.notification_methods["email"].deliver_to_queue
+    Server.instance.setup
+
+     a = Alert.new(
+      :alert_id  => "test",
+      :source    => "test",
+      :subject   => "test"
+    )
+
+    assert(a.raise!, "raise was not successful")
+    assert(a.saved?)
+    assert_equal(1, notification_buffer.length)
+    notification_buffer.pop
+
+    10.times do   
+      Timecop.freeze(Time.now + 1.minute)
+      5.times do
+        AlertChanged.all.each do |ac|
+          assert(ac.poll)
+        end
+      end
+      assert_equal(1, notification_buffer.length)
+      notification_buffer.pop
+    end
+
+  end
+
+
 end
 
 class TcMauveDatabaseSqlite3Peculiarities < TcMauveDatabasePeculiarities
-- 
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