79 lines
1.7 KiB
Ruby
79 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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class OrgUnit < ApplicationRecord
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################
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# Associations #
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################
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belongs_to :kind,
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class_name: 'OrgUnitKind',
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inverse_of: :instances
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belongs_to :parent_unit,
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class_name: 'OrgUnit',
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inverse_of: :children_units,
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optional: true
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belongs_to :resource,
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polymorphic: true,
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optional: true
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has_many :children_units,
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class_name: 'OrgUnit',
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inverse_of: :parent_unit,
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foreign_key: :parent_unit_id
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has_many :all_relationships,
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class_name: 'Relationship',
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inverse_of: :org_unit
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###############
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# Validations #
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###############
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validates :short_name, good_small_text: true, uniqueness: true
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validates :name, good_small_text: true, uniqueness: true
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validates :parent_unit,
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presence: { if: :requires_parent?, message: :required },
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absence: { unless: :requires_parent? }
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validates :resource,
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presence: { if: :requires_resource?, message: :required },
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absence: { unless: :requires_resource? }
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validate :parent_matches_kind
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#############
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# Callbacks #
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#############
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before_validation :set_level
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###########
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# Methods #
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###########
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def requires_parent?
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kind&.parent_kind
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end
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def requires_resource?
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kind&.resource_type
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end
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private
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def parent_matches_kind
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errors.add :parent_unit unless parent_unit&.kind == kind&.parent_kind
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end
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def set_level
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self.level =
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if parent_unit.nil? then 0
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elsif parent_unit.level.nil? then nil
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else parent_unit.level + 1
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end
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end
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end
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