43 lines
1.4 KiB
Ruby
43 lines
1.4 KiB
Ruby
require "yaml"
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module PaperTrail
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module Serializers
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# The default serializer for, e.g. `versions.object`.
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module YAML
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E_WHERE_OBJ_CHANGES = <<-STR.squish.freeze
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where_object_changes has a known issue. When reading YAML from a text
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column, it may return more records than expected. Instead of a warning,
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this method may raise an error in the future. Please join the discussion
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at https://github.com/airblade/paper_trail/pull/997
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STR
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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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::YAML.load string
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end
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def dump(object)
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::YAML.dump 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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arel_field.matches("%\n#{field}: #{value}\n%")
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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_changes`.
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def where_object_changes_condition(arel_field, field, value)
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::ActiveSupport::Deprecation.warn(E_WHERE_OBJ_CHANGES)
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# Need to check first (before) and secondary (after) fields
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m1 = "%\n#{field}:\n- #{value}\n%"
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m2 = "%\n#{field}:\n-%\n- #{value}\n%"
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arel_field.matches(m1).or(arel_field.matches(m2))
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end
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end
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end
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end
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