v4.0 Inconsistent mutationMode usage between Create and Edit components

[panfiva]

Is your feature request related to a problem? Please describe.
Currently, mutationMode attribute is available in Edit component, but not available in Create component

In order to specify mutation mode in Create component, I have to use mutationMode property of Form component, however it has 2 issues:

• It is undocumented in React-Admin
• It only works with Create components; and does not work with Edit components

export const CreateForm= (props: CreateProps) => {
	return (
		<Create {...props} redirect='list'>
			<Form mutationMode='pessimistic' toolbar={<CustomToolbar />} />
		</Create>
	)
}

export const EditForm= (props: EditProps) => {
	return (
		<Edit {...props} redirect='list' mutationMode='pessimistic'>
			<Form toolbar={<CustomToolbar />} />
		</Edit>
	)
}

Describe the solution you'd like

• I would like mutation mode to be consistently used in both Create and Edit components.
• I also would like to remove mutationMode property from Form component properties (from SimpleFormProps) so that typescript will not offer it as an option

[fzaninotto]

No mutationMode other than pessimistic is allowed in the Create view by design. Or, to put it otherwise, optimistic creations aren't supported (because the client-side often doesn't have the sequence required to create an identifier)

So Create doesn't need to support a mutationMode prop.

[panfiva]

Since mutationMode is not supported, can we remove fmutationMode from SimpleFormProps so that typescript does not offer it as an option?

[fzaninotto]

You're right, the type is wrong. I'm reopening this and marking it as a bug.