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Flow

class viewflow.base.Flow

Base class for flow definition:

class MyFlow(Flow):
    start = flow.StartFunction().Next(this.end)
    end = flow.End()

Parameters

• process_class – Defines model class for Process

• task_class – Defines model class for Task

• management_form_class – Defines form class for task state tracking over GET requests

• lock_impl – Locking implementation for flow

• instance – the singleton instance”

management_form_class

alias of viewflow.forms.ActivationDataForm

process_class

alias of viewflow.models.Process

task_class

alias of viewflow.models.Task

property urls

Build URL patterns list for all flow nodes:

urlpatterns = [
    re_path(r'^admin/', include('admin.site.urls')),
    MyFlow.instance.urls,
]

class viewflow.base.FlowMeta(app_label, flow_class, nodes)

Flow meta options.

property flow_label

Unique flow label.

property manage_permission_name

Name of the permission to administer flow instances.

node(name, no_obsolete=False)

Get node by name.

nodes()

Iterator over all flow nodes.

property view_permission_name

Name of the permission to view flow instances.