47 lines
1.6 KiB
Ruby
47 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module PaperTrail
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module Serializers
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# An alternate serializer for, e.g. `versions.object`.
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module JSON
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extend self # makes all instance methods become module methods as well
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def load(string)
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ActiveSupport::JSON.decode string
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end
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def dump(object)
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ActiveSupport::JSON.encode object
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end
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# Returns a SQL LIKE condition to be used to match the given field and
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# value in the serialized object.
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def where_object_condition(arel_field, field, value)
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# Convert to JSON to handle strings and nulls correctly.
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json_value = value.to_json
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# If the value is a number, we need to ensure that we find the next
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# character too, which is either `,` or `}`, to ensure that searching
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# for the value 12 doesn't yield false positives when the value is
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# 123.
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if value.is_a? Numeric
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arel_field.matches("%\"#{field}\":#{json_value},%").
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or(arel_field.matches("%\"#{field}\":#{json_value}}%"))
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else
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arel_field.matches("%\"#{field}\":#{json_value}%")
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end
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end
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def where_object_changes_condition(*)
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raise <<-STR.squish.freeze
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where_object_changes no longer supports reading JSON from a text
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column. The old implementation was inaccurate, returning more records
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than you wanted. This feature was deprecated in 7.1.0 and removed in
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8.0.0. The json and jsonb datatypes are still supported. See the
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discussion at https://github.com/paper-trail-gem/paper_trail/issues/803
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STR
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end
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end
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end
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end
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