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# frozen_string_literal: true
module Decidim
# A ResourceLink allows linking resources (other entities in Decidim) between
# them without them having to know each other.
#
# In order to group the relations between resources you need to specify a name.
#
# Some examples could be: proposals that have been created in a meeting or
# projects that are a result of merging diffrent proposals.
class ResourceLink < ApplicationRecord
belongs_to :from, polymorphic: true
belongs_to :to, polymorphic: true
validates :name, presence: true, uniqueness: { scope: [:from, :to] }
validate :same_organization
validate :same_participatory_space
private
def same_organization
return if from.try(:organization) == to.try(:organization)
errors.add(:from, :invalid)
errors.add(:to, :invalid)
end
def same_participatory_space
return if from.try(:participatory_space) == to.try(:participatory_space)
errors.add(:from, :invalid)
errors.add(:to, :invalid)
end
end
end
Version data entries
85 entries across 85 versions & 1 rubygems