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author | Stefan Wintermeyer <stefan.wintermeyer@amooma.de> | 2013-02-27 12:22:29 +0100 |
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committer | Stefan Wintermeyer <stefan.wintermeyer@amooma.de> | 2013-02-27 12:22:29 +0100 |
commit | 67c1a0a951403a546250ea860a3e3d199cae2fce (patch) | |
tree | f86ec6cedf081a1a57005eca1661e9bead34e4de /app/models/group_membership.rb | |
parent | 5d8ce5f4775ac8bc5f523964e6e36f63ff3c4683 (diff) | |
parent | 211f558a86ae30cdd5b392ab1376e1393f97e22c (diff) |
Merge branch 'develop'5.1-beta6
Diffstat (limited to 'app/models/group_membership.rb')
-rw-r--r-- | app/models/group_membership.rb | 37 |
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 |