39 lines
1.2 KiB
Ruby
39 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module Database
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# PostgreSQL defines its own class with slightly different
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# behaviour from the default Binary type.
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BINARY_TYPE = ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Bytea
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# Class for casting binary data to hexadecimal SHA1 hashes (and vice-versa).
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#
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# Using ShaAttribute allows you to store SHA1 values as binary while still
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# using them as if they were stored as string values. This gives you the
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# ease of use of string values, but without the storage overhead.
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class ShaAttribute < BINARY_TYPE
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PACK_FORMAT = 'H*'
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# Casts binary data to a SHA1 in hexadecimal.
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def deserialize(value)
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value = super(value)
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value ? value.unpack1(PACK_FORMAT) : nil
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end
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# Casts a SHA1 in hexadecimal to the proper binary format.
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def serialize(value)
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arg = value ? [value].pack(PACK_FORMAT) : nil
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BINARY_TYPE.new.serialize(arg)
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end
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# Casts a SHA1 in hexadecimal to the proper binary format.
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def self.serialize(value)
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arg = value ? [value].pack(PACK_FORMAT) : nil
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BINARY_TYPE.new.serialize(arg)
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end
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end
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end
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end
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