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26 lines
1.1 KiB
Ruby
26 lines
1.1 KiB
Ruby
# Allows unique IP address (10.0.1.20), and IP addresses with a mask (10.0.0.0/8).
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# Useful when storing in a Postgresql inet column.
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class IpAddressFormatValidator < ActiveModel::EachValidator
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def validate_each(record, attribute, value)
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if rails4?
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# In Rails 4.0.0, ip_address will be nil if an invalid IP address was assigned.
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# https://github.com/jetthoughts/rails/commit/0aa95a71b04f2893921c58a7c1d9fca60dbdcbc2
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# BUT: in Rails 4.0.1, validators don't get a chance to
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# run before IPAddr::InvalidAddressError is raised.
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# I don't see what broke it in rails 4.0.1...
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# So this validator doesn't actually do anything anymore.
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# But let's keep it in case a future version of rails fixes the problem and allows
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# validators to work on inet and cidr columns.
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if record.ip_address.nil?
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record.errors.add(attribute, :invalid)
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end
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else
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unless !record.ip_address.nil? and record.ip_address.to_s.split('/').first =~ Resolv::AddressRegex
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record.errors.add(attribute, :invalid)
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end
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end
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end
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end
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