Class: Schemer::Sequel::Migrator

Inherits:
Object
  • Object
show all
Defined in:
lib/schemer/sequel.rb

Class Method Summary collapse

Class Method Details

.migration(klass) ⇒ Object

Outputs the Rails migration for the schema defined in the given class.

Outputs an empty string if no schema is defined on the class.



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# File 'lib/schemer/sequel.rb', line 74

def self.migration(klass)
  return nil unless klass.respond_to?(:schema_columns)

  "create_table :#{klass.table_name} do |t|\n" +
  (klass.schema_columns.keys - klass::protected_columns).collect do |column| 
    "  add_column :#{column}, " + (klass.schema_columns[column].is_a?(Symbol) ? ":#{klass.schema_columns[column]}" : klass.schema_columns[column].to_s)
  end.join("\n") +
  "\nend"
end