cortex-cms/cortex

module Cortex
  class Field < Cortex::ApplicationRecord
    belongs_to :content_type, touch: true
    has_many :field_items
    has_many :content_items, through: :field_items

    validates :name, :content_type, :field_type, presence: true
    validate :acceptable_field_type
    validates_uniqueness_of :name,
                            :name_id,
                            scope: :content_type_id,
                            message: 'should be unique within a ContentType'

    def field_type_instance(options = {})
      field_type.camelize.constantize.new(options)
    end

    def elasticsearch_mapping
      field_type_instance(field_name: name).elasticsearch_mapping
    end

    def tenant
      content_type.tenant
    end

    private

    def acceptable_field_type
      begin
        Cortex::FieldType.get_subtype_constant(field_type)
      rescue NameError
        errors.add(:field_type, 'must be an available field type')
      end
    end
  end
end