Maintainer: Daniel Hahn This document is incomplete

See also the Functional Specs

Workflow engine specifications

These are the technical details for the implementation of the workflow engine

Source class properties

The SourceRecord? of a Source will contain the following properties:

• workflow - A string indicating the workflow used by this source. This is the class name of the workflow.
• workflow_step - An integer indicating the current step in the workflow. This should correspond to a constant.

Both properties should not be available on the Source object, at least not for writing.

The workflow will be the name of the class that is used to control the Source's workflow. It will be used to create the workflow object when the Source is loaded.

Idea: It would also be possible to remove all workflow-related information from the source_records table and create a new linked table with all workflow information. This could possibly use single table inheritance and/or make use of the ActsAsStatemachine? plugin...

Creating Sources

When a Source is created, a workflow must be selected for it. We need a mechanism to select the workflow

Default Workflow steps

The workflow steps are saved as integers, symbolic names are defined as constants in the WorkflowState class.