Activity refactoring.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1701 e93f8b46-1217-0410-a6f0-8f06a7374b81

1 files changed, 79 insertions, 0 deletions

diff --git a/lib/redmine/activity/fetcher.rb b/lib/redmine/activity/fetcher.rb
new file mode 100644
index 000000000..adaead564
--- /dev/null
+++ b/lib/redmine/activity/fetcher.rb
@@ -0,0 +1,79 @@
+# Redmine - project management software
+# Copyright (C) 2006-2008  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# 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 General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+module Redmine
+  module Activity
+    # Class used to retrieve activity events
+    class Fetcher
+      attr_reader :user, :project, :scope
+      
+      # Needs to be unloaded in development mode
+      @@constantized_providers = Hash.new {|h,k| h[k] = Redmine::Activity.providers[k].collect {|t| t.constantize } }
+      
+      def initialize(user, options={})
+        options.assert_valid_keys(:project, :with_subprojects)
+        @user = user
+        @project = options[:project]
+        @options = options
+        
+        @scope = event_types
+      end
+      
+      # Returns an array of available event types
+      def event_types
+        return @event_types unless @event_types.nil?
+        
+        @event_types = Redmine::Activity.available_event_types
+        @event_types = @event_types.select {|o| @user.allowed_to?("view_#{o}".to_sym, @project)} if @project
+        @event_types
+      end
+      
+      # Yields to filter the activity scope
+      def scope_select(&block)
+        @scope = @scope.select {|t| yield t }
+      end
+      
+      # Sets the scope
+      def scope=(s)
+        @scope = s & event_types
+      end
+      
+      # Resets the scope to the default scope
+      def default_scope!
+        @scope = Redmine::Activity.default_event_types
+      end
+      
+      # Returns an array of events for the given date range
+      def events(from, to)
+        e = []
+        
+        @scope.each do |event_type|
+          constantized_providers(event_type).each do |provider|
+            e += provider.find_events(event_type, @user, from, to, @options)
+          end
+        end
+        e
+      end
+      
+      private
+      
+      def constantized_providers(event_type)
+        @@constantized_providers[event_type]
+      end
+    end
+  end
+end