daa1555c00
* Add attribute cleaner * Start using AttributeCleaner * Add additional check * Also work with non AR classes * Remove unnecessray :aggregate_failures * Rename to StringAttributeCleaner
32 lines
993 B
Ruby
32 lines
993 B
Ruby
# This module provides a method for generating a configurable before_validation
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# hook for cleaning up string attributes: all listed attributes will be
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# replaced with `nil` if they are blank.
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module StringAttributeCleaner
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# This method specifies the list of attributes that should be cleaned before
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# validation happens.
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#
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# @param attributes [Array<Symbol|String>]
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#
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# @return [void]
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#
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# @example Defining a list of attributes to be cleaned
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# include StringAttributeCleaner.for(:attribute1, :attribute2)
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def self.for(*attributes)
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Module.new do
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define_singleton_method(:included) do |klass|
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return unless klass < ActiveRecord::Base
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klass.before_validation(:nullify_blank_attributes)
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end
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define_method(:nullify_blank_attributes) do
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attributes.each do |attr|
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next unless respond_to?(attr)
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next if public_send(attr).present?
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public_send("#{attr}=", nil)
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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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