15 lines
381 B
Ruby
15 lines
381 B
Ruby
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# This needs to be outside the module to work.
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class JsonValidator < ActiveModel::EachValidator
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# implement the method called during validation
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def is_json?(value)
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begin
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!!JSON.parse(value)
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rescue
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false
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end
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end
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def validate_each(record, attribute, value)
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record.errors[attribute] << 'must be JSON' unless value.nil? || is_json?(value)
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end
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end |