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class Permission < ActiveRecord::Base
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attr_accessible :name, :resource_type
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validates :name, :presence => true, :uniqueness => { :scope => :resource_type }
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has_many :filterings, :dependent => :destroy
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has_many :filters, :through => :filterings
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def self.resources
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@all_resources ||= Permission.uniq.order(:resource_type).pluck(:resource_type).compact
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end
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def self.resources_with_translations
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with_translations.sort { |a, b| a.first <=> b.first }
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end
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def self.with_translations
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resources.map { |r| [_(Filter.get_resource_class(r).try(:humanize_class_name) || r), r] }
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end
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end
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