From b80bd744ad873f6fc43018bc4bfb90677de167bd Mon Sep 17 00:00:00 2001
From: Stefan Wintermeyer <stefan.wintermeyer@amooma.de>
Date: Mon, 17 Dec 2012 12:01:45 +0100
Subject: Start of GS5.

---
 app/models/user_group_membership.rb | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 app/models/user_group_membership.rb

(limited to 'app/models/user_group_membership.rb')

diff --git a/app/models/user_group_membership.rb b/app/models/user_group_membership.rb
new file mode 100644
index 0000000..18a8d48
--- /dev/null
+++ b/app/models/user_group_membership.rb
@@ -0,0 +1,26 @@
+class UserGroupMembership < ActiveRecord::Base
+  belongs_to :user
+  belongs_to :user_group
+  
+  validates_uniqueness_of :user_id, :scope => :user_group_id
+  validates_presence_of :user
+  validates_presence_of :user_group
+  
+  validate :user_belongs_to_the_tenant_of_the_user_group
+  
+  # State Machine stuff
+  default_scope where(:state => 'active')
+  state_machine :initial => :active do
+  end
+
+  def to_s
+    "#{self.user} / #{self.user_group}"
+  end
+
+  private
+  def user_belongs_to_the_tenant_of_the_user_group
+    if !self.user_group.tenant.users.include?(self.user)
+      errors.add(:user_id, "not a member of the tenant which this group belongs to")
+    end
+  end
+end
-- 
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