Signals API Reference

API reference for additional signals included in Django-bulkmodel

Bulk create signals

pre_bulk_create

Fired before bulk_create writes data to the database

Parameters:

  • instances: a list of model instances about to be written to the database

post_bulk_create

Fired after bulk_create has written data to the database

Parameters:

  • instances: a list of model instances that have been written to the database
  • queryset: a queryset of records saved in the bulk create; only applies if return_queryset=True is passed to bulk_create()

Fired after a bulk-create is issued

Update signals

pre_update

Fired just before update() performs a homogeneous update

Parameters:

  • instances: a list of instances about to be updated

post_update

Fired just after update() performs a homogeneous update

Parameters:

  • instances: a list of instances that have been updated

pre_update_fields

Fired just before update_fields() performs a hetergenous update

Parameters:

  • instances: a list of instances about to be updated
  • field_names: a list of fieldnames being updated; if empty, all fields are being updated
  • field_defaults: defaults for each field, provided as a dictionary
  • batch_size: the batch size used for the update

post_update_fields

Fired just after update_fields() performs a heterogeneous update

Parameters:

  • instances: a list of instances about to be updated
  • queryset: a queryset of records updated, if return_queryset=True is passed to update_fields
  • field_names: a list of fieldnames being updated; if empty, all fields are being updated
  • field_defaults: defaults for each field, provided as a dictionary
  • batch_size: the batch size used for the update
  • n: number of instances updated

Copy to / from signals

pre_copy_from_instances

Fired just before copy_from_instances writes data to the database

Parameters:

  • instances: a list of instances about to be updated

post_copy_from_instances

Fired just after copy_from_instances writes data to the database

Parameters:

  • instances: a list of instances that have been updated