40 lines
1.0 KiB
Ruby
40 lines
1.0 KiB
Ruby
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##
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# This model is a grouping of Permission models associated to a particular
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# People.
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#
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class Role < ActiveRecord::Base
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has_many :peoples
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belongs_to :parent, :foreign_key => 'parent_id', :class_name => 'Role'
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validates_presence_of :code, :name
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validates_uniqueness_of :code
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validates_format_of :code, :with => /^([A-Za-z0-9])+$/,
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:message => 'may only contain letters and numbers'
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has_and_belongs_to_many :permissions
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##
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# Ensures that the Role does not have a parent of itself.
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#
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def validate
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if !self.new_record? and self.parent_id == id
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self.errors.add(:parent, 'cannot be self')
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end
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return false if self.errors.size > 0
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true
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end
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##
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# Returns a Role found by +code+ if the method is missing.
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#
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def self.method_missing(method_name, *args)
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return self.find_by_code($1) if method_name.to_s =~ /^(.+)_role$/
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super
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end
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##
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# Returns a select-box compatible array.
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#
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def self.for_select
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self.find(:all).collect { |x| [ x.name, x.id.to_s ] }
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end
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end
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