monolith-controller-and-view-development

# Monolith Controller and View Development ## Use this skill when - Creating request handlers in `app/controllers/`. - Generating or editing templates in `app/views/`. ## Fast start - Controller scaffold: `make generator controller widgets index show` - Full CRUD controller/views: `make generator controller widgets all` ## REST action mapping - `Index` → `GET /resources` - `Show` → `GET /resources/{id}` - `New` → `GET /resources/new` - `Create` → `POST /resources` - `Edit` → `GET /resources/{id}/edit` - `Update` → `PUT/PATCH /resources/{id}` - `Destroy` → `DELETE /resources/{id}` ## Rendering pattern Use `views.Render(w, "template_name.html.tmpl", data)`. Templates are pre-parsed at startup by `views.InitTemplates(...)`. ## Template naming convention Generators produce files like: - `app/views/widgets/widgets_index.html.tmpl` - `app/views/widgets/widgets_show.html.tmpl` - `app/views/widgets/widgets_new.html.tmpl` - `app/views/widgets/widgets_edit.html.tmpl` ## Implementation checklist 1. Parse path params with `r.PathValue("id")` for ID routes. 2. Load/save model data via `db.GetDB()` + model helpers. 3. Render template or redirect as appropriate. 4. Register route in `app/routes/routes.go` (generator does this when actions are provided). 5. Add/adjust controller tests.