class PaperTrail::Queries::Versions::WhereObjectChanges
For public API documentation, see ‘where_object_changes` in `paper_trail/version_concern.rb`. @api private
Public Class Methods
new(version_model_class, attributes)
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-
version_model_class - The class that
VersionConcern
was mixed into. -
attributes - A ‘Hash` of attributes and values. See the public API documentation for details.
@api private
# File lib/paper_trail/queries/versions/where_object_changes.rb, line 14 def initialize(version_model_class, attributes) @version_model_class = version_model_class # Currently, this `deep_dup` is necessary because the `jsonb` branch # modifies `@attributes`, and that would be a nasty surprise for # consumers of this class. # TODO: Stop modifying `@attributes`, then remove `deep_dup`. @attributes = attributes.deep_dup end
Public Instance Methods
execute()
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@api private
# File lib/paper_trail/queries/versions/where_object_changes.rb, line 25 def execute if PaperTrail.config.object_changes_adapter.respond_to?(:where_object_changes) return PaperTrail.config.object_changes_adapter.where_object_changes( @version_model_class, @attributes ) end column_type = @version_model_class.columns_hash["object_changes"].type case column_type when :jsonb jsonb when :json json else raise UnsupportedColumnType.new( method: "where_object_changes", expected: "json or jsonb", actual: column_type ) end end
Private Instance Methods
json()
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@api private
# File lib/paper_trail/queries/versions/where_object_changes.rb, line 49 def json predicates = [] values = [] @attributes.each do |field, value| predicates.push( "((object_changes->>? ILIKE ?) OR (object_changes->>? ILIKE ?))" ) values.concat([field, "[#{value.to_json},%", field, "[%,#{value.to_json}]%"]) end sql = predicates.join(" and ") @version_model_class.where(sql, *values) end
jsonb()
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@api private
# File lib/paper_trail/queries/versions/where_object_changes.rb, line 63 def jsonb @attributes.each { |field, value| @attributes[field] = [value] } @version_model_class.where("object_changes @> ?", @attributes.to_json) end