67 lines
1.9 KiB
Ruby
67 lines
1.9 KiB
Ruby
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module Carto
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# Rails 3 stores nil strings with JSON serialization as 'null', so we need to replace it with a valid value.
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# See https://github.com/rails/rails/issues/13144
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class CartoJsonSerializer
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def self.dump(hash)
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hash.try(&:to_json)
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end
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def self.load(value)
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value.try(&:with_indifferent_access)
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end
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end
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# CartoJsonSerializer is closer to Rails Json serializer, using with_indifferent_access
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# for load. The problem with that is that although you can _access_ first
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# level keys both with symbols and keys, other common operations, such as
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# key comparison, fail, and it only applies to the first level.
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class CartoJsonSymbolizerSerializer < CartoJsonSerializer
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def self.load(value)
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value && symbolize(value)
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end
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def self.symbolize(value)
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if value.is_a?(Hash)
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value.deep_symbolize_keys
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elsif value.is_a?(Array)
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value.map { |v| symbolize(v) }
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else
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value
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end
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end
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private_class_method :symbolize
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end
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end
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class CartoJsonSymbolizerValidator < ActiveModel::EachValidator
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def validate_each(record, attribute, value)
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if value && !(value.is_a?(Hash) || value.is_a?(Array))
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record.errors[attribute] << 'wrongly formatted (not a Hash or invalid JSON)'
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end
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end
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end
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class JsonSchemaValidator < ActiveModel::EachValidator
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def validate_each(record, attribute, value)
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return unless value
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value_for_json = prepare_for_json(value)
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schema = Carto::Definition.instance.load_from_file("lib/formats/#{record.class.to_s.underscore}/#{attribute}.json")
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errors = JSON::Validator::fully_validate(schema, value_for_json, strict: true)
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record.errors[attribute] << errors.join(', ') if errors.any?
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end
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private
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def prepare_for_json(value)
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if value.is_a? Hash
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value.with_indifferent_access
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elsif value.respond_to? :map
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value.map { |v| prepare_for_json(v) }
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else
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value
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end
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end
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end
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