migrationhelper

Documentation

Index

• func TransformRowsBetweenTables(db dal.Dal, src schema.Tabler, dst schema.Tabler, ...) (errs errors.Error)
• func TransformRowsInPlace(db dal.Dal, src schema.Tabler, bak schema.Tabler, dst schema.Tabler, ...) (errs errors.Error)

Functions

func TransformRowsBetweenTables

func TransformRowsBetweenTables(db dal.Dal, src schema.Tabler, dst schema.Tabler, callback_transform func(src schema.Tabler) schema.Tabler) (errs errors.Error)

TransformRowsBetweenTables method can be used when we need to change the table structure and reprocess all the data in the table. It request the src table and the dst table with different table name.

func TransformRowsInPlace

func TransformRowsInPlace(db dal.Dal, src schema.Tabler, bak schema.Tabler, dst schema.Tabler, callback_transform func(src schema.Tabler) schema.Tabler) (errs errors.Error)

TransformRowsInPlace method can be used when we need to change the table structure and reprocess all the data in the table.