Problem/Motivation

Workflows currently provides StateInterface and TransitionInterface for the State and Transition value objects. Content Moderation also uses StateInterface for ContentModerationState value object.

Do we need these interfaces?

Discussion started in #2899553: Architectural review of the Workflows module (documentation cleanups) at #29.

Proposed resolution

Discuss.

Remaining tasks

User interface changes

API changes

Possible removal of these two internal interfaces.

Data model changes

Comments

timmillwood created an issue. See original summary.

Sam152’s picture

Sam152 CreditAttribution: Sam152 as a volunteer and at PreviousNext commented

If there are two implementations, the interface is required. So perhaps the issue should clarify the terminology around "value objects" in the comments?

Sam152’s picture

Sam152 CreditAttribution: Sam152 as a volunteer and at PreviousNext commented
Issue summary: View changes
Related issues: +#2899553: Architectural review of the Workflows module (documentation cleanups)

Given we have methods like WorkflowTypeInterface::getTransitions which are @api that return an array of objects that implement an @internal interface, this should probably be resolved for 8.5.

Additionally I missed that #2896724: Create constants for transition directions. introduced a constant on an @internal interface, to be used as an argument for an @api method. I suspect the outcome of this will be, those interfaces will become @api, so hopefully not an actual problem?

Adding some context to the IS which will help us decide what to do with these.

Version: 8.5.x-dev » 8.6.x-dev

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Nigel Cunningham’s picture

Nigel Cunningham
Location Geelong
CreditAttribution: Nigel Cunningham at Grindstone Creative commented

I have a further argument for treating Transitions as entities in their own right: I'm preparing a quote for a client that wants transitions to require approval from multiple users. To my mind, it makes most sense to implement this by having transitions be entities supporting the implementation of the rules that are required.

If this quote goes further, I'll do more work but happy to participate in further discussion.

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