70 lines
2.5 KiB
Ruby
70 lines
2.5 KiB
Ruby
# == Schema Information
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# Schema version: 20090120184410
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#
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# Table name: groups
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#
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# id :integer not null, primary key
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# type :string(255) default(""), not null
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# name :string(255) default(""), not null
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# description :string(255)
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# account_balance :decimal(, ) default(0.0), not null
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# account_updated :datetime
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# created_on :datetime not null
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# role_admin :boolean not null
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# role_suppliers :boolean not null
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# role_article_meta :boolean not null
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# role_finance :boolean not null
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# role_orders :boolean not null
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# weekly_task :boolean
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# weekday :integer
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# task_name :string(255)
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# task_description :string(255)
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# task_required_users :integer default(1)
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# deleted_at :datetime
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# contact_person :string(255)
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# contact_phone :string(255)
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# contact_address :string(255)
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#
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# Groups organize the User.
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# A Member gets the roles from the Group
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class Group < ActiveRecord::Base
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has_many :memberships, :dependent => :destroy
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has_many :users, :through => :memberships
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validates_length_of :name, :in => 1..25
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validates_uniqueness_of :name
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# Returns true if the given user if is an member of this group.
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def member?(user)
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memberships.find_by_user_id(user.id)
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end
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# Returns all NONmembers and a checks for possible multiple Ordergroup-Memberships
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def non_members
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User.all(:order => 'nick').reject { |u| users.include?(u) }
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end
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# Check before destroy a group, if this is the last group with admin role
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def before_destroy
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if self.role_admin == true && Group.find_all_by_role_admin(true).size == 1
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raise "Die letzte Gruppe mit Admin-Rechten darf nicht gelöscht werden"
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end
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end
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protected
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# validates uniqueness of the Group.name. Checks groups and ordergroups
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def validate
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errors.add(:name, "ist schon vergeben") if (group = Group.find_by_name(name) || group = Ordergroup.find_by_name(name)) && self != group
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end
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# add validation check on update
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def validate_on_update
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# error if this is the last group with admin role and role_admin should set to false
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if self.role_admin == false && Group.find_all_by_role_admin(true).size == 1 && self == Group.find(:first, :conditions => "role_admin = 1")
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errors.add(:role_admin, "Der letzten Gruppe mit Admin-Rechten darf die Admin-Rolle nicht entzogen werden")
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end
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end
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end
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