Module: PaperTrail::Serializers::YAML

Extended by:
YAML
Included in:
YAML
Defined in:
lib/paper_trail/serializers/yaml.rb

Overview

The default serializer for, e.g. versions.object.

Constant Summary collapse

E_WHERE_OBJ_CHANGES = 
"  where_object_changes has a known issue. When reading YAML from a text\n  column, it may return more records than expected. Instead of a warning,\n  this method may raise an error in the future. Please join the discussion\n  at https://github.com/airblade/paper_trail/pull/997\n".squish.freeze

Instance Method Summary collapse

Instance Method Details

#dump(object) ⇒ Object 



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# File 'lib/paper_trail/serializers/yaml.rb', line 20

def dump(object)
  ::YAML.dump object
end

#load(string) ⇒ Object 



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# File 'lib/paper_trail/serializers/yaml.rb', line 16

def load(string)
  ::YAML.load string
end

#where_object_changes_condition(arel_field, field, value) ⇒ Object

Returns a SQL LIKE condition to be used to match the given field and value in the serialized object_changes.



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# File 'lib/paper_trail/serializers/yaml.rb', line 32

def where_object_changes_condition(arel_field, field, value)
  ::ActiveSupport::Deprecation.warn(E_WHERE_OBJ_CHANGES)

  # Need to check first (before) and secondary (after) fields
  m1 = "%\n#{field}:\n- #{value}\n%"
  m2 = "%\n#{field}:\n-%\n- #{value}\n%"
  arel_field.matches(m1).or(arel_field.matches(m2))
end

#where_object_condition(arel_field, field, value) ⇒ Object

Returns a SQL LIKE condition to be used to match the given field and value in the serialized object.



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# File 'lib/paper_trail/serializers/yaml.rb', line 26

def where_object_condition(arel_field, field, value)
  arel_field.matches("%\n#{field}: #{value}\n%")
end