From 07c2ba8fdebdcee1fe79d6e3aded5ea79ebfb19f Mon Sep 17 00:00:00 2001
From: Mike Dvorkin <mike@dvorkin.net>
Date: Tue, 17 Aug 2010 20:20:00 -0700
Subject: [PATCH] Added PrependEngineViews library module to let Fat Free CRM
 plugins override default views

---
 lib/fat_free_crm.rb              |  3 +++
 lib/fat_free_crm/plugin_views.rb | 40 ++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 lib/fat_free_crm/plugin_views.rb

diff --git a/lib/fat_free_crm.rb b/lib/fat_free_crm.rb
index 2b26d294ec..e9b1edb3d8 100644
--- a/lib/fat_free_crm.rb
+++ b/lib/fat_free_crm.rb
@@ -28,6 +28,7 @@
 require "fat_free_crm/tabs"
 require "fat_free_crm/callback"
 require "fat_free_crm/plugin"
+require "fat_free_crm/plugin_views"
 
       ActionView::Base.send(:include, FatFreeCRM::I18n)
 ActionController::Base.send(:include, FatFreeCRM::I18n)
@@ -37,3 +38,5 @@
 
     ActiveRecord::Base.send(:include, FatFreeCRM::Permissions)
     ActiveRecord::Base.send(:include, FatFreeCRM::Sortable)
+
+ Rails::Plugin::Loader.send(:include, FatFreeCRM::PrependEngineViews)
diff --git a/lib/fat_free_crm/plugin_views.rb b/lib/fat_free_crm/plugin_views.rb
new file mode 100644
index 0000000000..cef9a6a5e2
--- /dev/null
+++ b/lib/fat_free_crm/plugin_views.rb
@@ -0,0 +1,40 @@
+# Fat Free CRM
+# Copyright (C) 2008-2010 by Michael Dvorkin
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+# 
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http:#www.gnu.org/licenses/>.
+#------------------------------------------------------------------------------
+
+module FatFreeCRM
+  # The following is taken from PrependEngineViews plugin for Redmine
+  # (see http://github.com/edavis10/prepend_engine_views/blob/master/init.rb)
+  # It basically lets any Fat Free CRM plugin override default views.
+  module PrependEngineViews
+    def self.included(base)
+      base.send(:include, InstanceMethods)
+      base.class_eval do
+        alias_method_chain :add_engine_view_paths, :prepend
+      end
+    end
+
+    module InstanceMethods
+      # Patch Rails so engine's views are prepended to the view_path,
+      # thereby letting plugins override application views
+      def add_engine_view_paths_with_prepend
+        paths = ActionView::PathSet.new(engines.collect(&:view_path))
+        ActionController::Base.view_paths.unshift(*paths)
+        ActionMailer::Base.view_paths.unshift(*paths) if configuration.frameworks.include?(:action_mailer)
+      end
+    end
+  end
+end