Tool: migration command for renaming components (discriminator mapping)

[silverbackdan]

Idea

A console command that generates a Doctrine migration to rename a component type — updating the discriminator map and any stored uiComponent references that point to the old name.

Use case

When a developer renames a component class (e.g. Title → Heading), several things need to update:

• The Doctrine discriminator map entry
• Any uiComponent values stored in Page, Layout, or Component rows referencing the old name
• Potentially ComponentPosition or ComponentGroup records

Currently this is a manual, error-prone process. A guided migration command would make renames safe and auditable.

Notes

• Could be implemented as a Maker command: make:rename-component OldName NewName
• Should output a Doctrine migration SQL and optionally a data migration
• May need coordination with the front-end (renaming Vue files) — could print a checklist of front-end changes needed

Idea from internal docs review.

[silverbackdan]

Implemented in f48eec0: make:rename-component Maker added at src/Maker/MakeRenameComponent.php.

Accepts old-name and new-name arguments (short class names). Interactively confirms FQCN and dtype (strtolower of short name by default, overridable via --old-dtype/--new-dtype). Uses IriConverterInterface to resolve the collection IRI, falling back to derived /component/kebab-name if the class doesn't exist yet. Generates a Doctrine migration (src/Resources/skeleton/migration/RenameComponent.tpl.php) that updates dtype in abstract_component and replaces the old IRI in component_group.allowed_components JSON. Outputs a per-group warning table (location IRI + reference) for groups referencing the old component, plus a front-end rename checklist. Tested in tests/Maker/MakeRenameComponentTest.php.