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New validate_on/before syntax.

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benni 2011-05-11 11:17:02 +02:00
parent d09d3922c1
commit 8db221ca5f
4 changed files with 10 additions and 7 deletions
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5
app/models/group.rb
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@ -6,6 +6,7 @@ class Group < ActiveRecord::Base
validates_length_of :name, :in => 1..25
validates_uniqueness_of :name
validate :last_admin_on_earth, :on => :update
# Returns true if the given user if is an member of this group.
def member?(user)
@ -32,8 +33,8 @@ class Group < ActiveRecord::Base
end
# add validation check on update
def validate_on_update
# error if this is the last group with admin role and role_admin should set to false
# Return an error if this is the last group with admin role and role_admin should set to false
def last_admin_on_earth
if self.role_admin == false && Group.find_all_by_role_admin(true).size == 1 && self == Group.find(:first, :conditions => "role_admin = 1")
errors.add(:role_admin, "Der letzten Gruppe mit Admin-Rechten darf die Admin-Rolle nicht entzogen werden")
end