Other hooks

These hooks are class methods of a mutation, which can be overridden with custom behavior.

before_mutate

Mutation	Arguments	Note
create	cls, root, info, input	1
patch/update	cls, root, info, input, id	1
delete	cls, root, info, id
batch_create	cls, root, info, input	1
batch_patch/batch_update	cls, root, info, input	1
batch_delete/filter_delete	cls, root, info, input	1

1: The hook can modify and return the input object. Returning None will cause the mutation to use the original input.

before_save

Mutation	Arguments	Note
create	cls, root, info, input, obj	1
patch/update	cls, root, info, input, id, obj	1
delete	cls, root, info, id, obj	1
batch_create	cls, root, info, input, created_objects	2
batch_patch/batch_update	cls, root, info, input, updated_objects	2
batch_delete	cls, root, info, ids, qs_to_delete	3
filter_delete	cls, root, info, filter_qs	3

1: You can optionally modify and return the ORM object obj.

2: You can optionally modify and return the ORM objects in created_objects or updated_objects.

3: You can optionally modify and return the querysets.

after_mutate

Mutation	Arguments	Note
create	cls, root, info, input, obj, return_data	1
patch/update	cls, root, info, id, input, obj, return_data	1
delete	cls, root, info, deleted_id, found
batch_create	cls, root, info, input, created_objs, return_data	1
batch_patch/batch_update	cls, root, info, input, updated_objs, return_data	1
batch_delete/filter_delete	cls, root, info, input, deletion_count, ids

1: You can modify and return the return_data argument.