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Decorators

viewflow.decorators.flow_func(func)

Decorator for flow functions.

Expect function that gets activation instance as the first parameter, Returns function that expects task instance as the first parameter instead

viewflow.decorators.flow_job(func)

Decorator that prepares celery task for execution.

Makes celery job function with the following signature (flow_task-strref, process_pk, task_pk, **kwargs)

Expects actual celery job function which has the following signature (activation, **kwargs) If celery task class implements activation interface, job function is called without activation instance (**kwargs)

Process instance is locked only before and after the function execution. Please avoid any process state modification during the celery job.

viewflow.decorators.flow_signal(handler)

Decorator provides a flow signal receiver with the activation.

viewflow.decorators.flow_start_func(func)

Decorator for flow functions.

viewflow.decorators.flow_start_signal(handler)

Decorator provides a flow signal receiver with the activation.

viewflow.decorators.flow_start_view(view)

Decorator for start views, creates and initializes start activation.

Expects view with the signature (request, **kwargs) Returns view with the signature (request, flow_class, flow_task, **kwargs)

viewflow.decorators.flow_view(view)

Decorator that locks and runs the flow view in transaction.

Expects view with the signature (request, **kwargs) Returns view with the signature `(request, flow_class, flow_task, process_pk, task_pk, **kwargs)