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authorPeter Kozak <spag@golwen.net>2013-02-22 07:08:23 -0500
committerPeter Kozak <spag@golwen.net>2013-02-22 07:08:23 -0500
commit2a9b798f9e122582abb36605a7d4a1da0e70eca9 (patch)
tree45fe362d677cb243fba57dc7c0c23d01e653863e /app/models/group_membership.rb
parentd6009d77ffa221c14a4536be98a04e8e4b6474a9 (diff)
pickup group permission model added
Diffstat (limited to 'app/models/group_membership.rb')
-rw-r--r--app/models/group_membership.rb37
1 files changed, 37 insertions, 0 deletions
diff --git a/app/models/group_membership.rb b/app/models/group_membership.rb
new file mode 100644
index 0000000..0f04ae1
--- /dev/null
+++ b/app/models/group_membership.rb
@@ -0,0 +1,37 @@
+class GroupMembership < ActiveRecord::Base
+ attr_accessible :group_id, :item_type, :item_id
+
+ belongs_to :group
+ belongs_to :item, :polymorphic => true
+
+ validates :item_id,
+ :presence => true,
+ :uniqueness => { :scope => [:group_id, :item_type] }
+
+ validates :item_type,
+ :presence => true,
+ :uniqueness => { :scope => [:group_id, :item_id] }
+
+ validate :validate_item_type_consitency
+
+ validates :item,
+ :presence => true
+
+ def to_s
+ "#{self.item_type}: #{self.item}"
+ end
+
+ def item_type_allowed
+ fist_item = self.group.group_memberships.first.try(:item)
+ if fist_item
+ return fist_item.class.name
+ end
+ end
+
+ def validate_item_type_consitency
+ type_allowed = self.item_type_allowed
+ if type_allowed && type_allowed != self.item_type
+ errors.add(:item_type, "must be of type: #{type_allowed}")
+ end
+ end
+end