Class: Zdm::Migrator

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(table) ⇒ Migrator

Returns a new instance of Migrator.



176
177
178
 
# File 'lib/zdm.rb', line 176

def initialize(table)
  @table = table
end

Instance Attribute Details

#table ⇒ Object (readonly)

Returns the value of attribute table.



174
175
176
 
# File 'lib/zdm.rb', line 174

def table
  @table
end

Instance Method Details

#cleanup ⇒ Object 



195
196
197
198
 
# File 'lib/zdm.rb', line 195

def cleanup
  drop_triggers
  execute('DROP TABLE IF EXISTS `%s`' % table.copy)
end

#migrate! ⇒ Object 



180
181
182
183
184
185
186
187
188
189
190
191
192
193
 
# File 'lib/zdm.rb', line 180

def migrate!
  validate
  set_session_lock_wait_timeouts
  cleanup
  create_copy_table
  # drop_copy_indexes
  apply_ddl_statements
  create_triggers
  copy_in_batches
  # create_copy_indexes
  atomic_switcharoo!
ensure
  cleanup
end