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# frozen_string_literal: true |
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require_relative '../attribute_validator' |
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module AMA |
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module Entity |
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class Mapper |
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module API |
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module Default |
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# Default validator for single attribute |
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class AttributeValidator < API::AttributeValidator |
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INSTANCE = new |
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# @param [Object] value Attribute value |
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# @param [AMA::Entity::Mapper::Type::Attribute] attribute |
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# @return [Array<String>] Single violation, list of violations |
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def validate(value, attribute, *) |
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violations = validate_internal(value, attribute) |
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violations.nil? ? [] : [violations] |
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end |
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private |
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def validate_internal(value, attribute) |
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if illegal_nil?(value, attribute) |
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return "Attribute #{attribute} could not be nil" |
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end |
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if invalid_type?(value, attribute) |
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return "Provided value #{value} doesn't conform to " \ |
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"any of attribute #{attribute} types (#{attribute.types})" |
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end |
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return unless illegal_value?(value, attribute) |
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"Provided value #{value} doesn't match default value (#{value})" \ |
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" or any of allowed values (#{attribute.values})" |
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end |
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# @param [Object] value Attribute value |
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# @param [AMA::Entity::Mapper::Type::Attribute] attribute |
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# @return [TrueClass, FalseClass] |
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def illegal_nil?(value, attribute) |
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value.nil? && !attribute.nullable |
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end |
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# @param [Object] value Attribute value |
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# @param [AMA::Entity::Mapper::Type::Attribute] attribute |
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# @return [TrueClass, FalseClass] |
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def invalid_type?(value, attribute) |
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attribute.types.all? do |type| |
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!type.respond_to?(:instance?) || !type.instance?(value) |
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end |
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end |
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# @param [Object] value Attribute value |
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# @param [AMA::Entity::Mapper::Type::Attribute] attribute |
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# @return [TrueClass, FalseClass] |
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def illegal_value?(value, attribute) |
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return false if value == attribute.default |
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return false if attribute.values.empty? || attribute.values.nil? |
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!attribute.values.include?(value) |
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end |
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end |
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end |
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end |
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end |
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end |
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end |
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ama-team /
ruby-entity-mapper
