Class: DataTransformation::Transformer

Inherits:
ActiveRecord::Migrator
  • Object
show all
Defined in:
lib/data_transformation/transformer.rb

Class Method Summary collapse

Class Method Details

.down ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 23

def down
  raise "Unimplemented as a Transformation"
end

.forward ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 27

def forward
  raise "Unimplemented as a Transformation"
end

.migrations_path ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 15

def migrations_path
  migrations_paths.first
end

.migrations_path=(path) ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 19

def migrations_path=(path)
  @migrations_paths = path
end

.migrations_paths ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 10

def migrations_paths
  @migrations_paths ||= ['db/transforms']
  Array.wrap(@migrations_paths)
end

.rollback ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 31

def rollback
  raise "Unimplemented as a Transformation"
end

.schema_migrations_table_name ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 35

def schema_migrations_table_name
  ActiveRecord::Base.table_name_prefix + "schema_transforms" + ActiveRecord::Base.table_name_suffix
end

.transform(transforms_path, target_version = nil) ⇒ Object 



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# File 'lib/data_transformation/transformer.rb', line 6

def transform(transforms_path, target_version=nil)
  migrate(transforms_path, target_version)
end