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TurboCrud is a Rails gem that simplifies CRUD with Hotwire and Turbo. It provides modal and drawer forms, real-time updates, flash handling, and generators for fast setup. Works with existing apps or full scaffolds, boosting productivity and keeping your UI modern and responsive.

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# TurboCrud (v0.5.0)

TurboCrud is a small Rails + Turbo helper for people who want CRUD to feel smooth instead of fragile.
It handles the repetitive Turbo wiring so you can focus on your app logic (and maybe drink your coffee while it’s still hot).

## Quick start

If you are starting new CRUD screens:

```bash
bin/rails g turbo_crud:scaffold Post title body:text published:boolean --container=both
```

If you already have a Rails app and want to drop TurboCrud in:
1. Add layout frames (`turbo_crud_flash_frame`, `turbo_crud_modal_frame`, `turbo_crud_drawer_frame`)
2. Update controller create/update/destroy to `turbo_create`, `turbo_update`, `turbo_destroy`
3. Render index list with `turbo_list_id(Model)` + a row partial collection
4. Ensure row partial exists (`_row` or existing model partial like `_blog`)
5. Wrap `new/edit` pages with `turbo_crud_container`

If you see `Content missing`, your `new/edit` views are usually rendering outside the expected Turbo frame/container.

## What you get
- Consistent **Turbo Stream** responses for create/update/destroy
- Built-in **modal frame** + **drawer frame** + **flash frame**
- `turbo_save` helper (create/update with one method)
- Generator scaffold that **auto-builds form fields from attributes**
- Test coverage + a small dummy app you can extend

## Why TurboCrud

| Task | Vanilla Rails + Turbo | TurboCrud |
| --- | --- | --- |
| Wire create/update/destroy streams | Manual per action | `turbo_create`, `turbo_update`, `turbo_destroy` |
| Keep flash updates working in-frame | Easy to mis-wire | `turbo_crud_flash_frame` + built-in stream helpers |
| Modal and drawer support | Custom frame plumbing | `turbo_crud_modal_link` / `turbo_crud_drawer_link` |
| Existing app integration | Ad-hoc changes | `turbo_crud:install` + `turbo_crud:doctor` |
| Scaffold setup | Multiple generators + custom edits | `turbo_crud:scaffold` (+ `--full` when needed) |

---

## Install

Add to your Gemfile:

```ruby
gem 'turbo_crud'
```

Then:

```bash
bundle install
```

Run the installer once:

```bash
bin/rails g turbo_crud:install
```

---

## Layout setup (required)

Put these in `app/views/layouts/application.html.erb`:

```erb
<%= turbo_crud_flash_frame %>

<%= turbo_crud_modal_frame %>
<%= turbo_crud_drawer_frame %>
```

Put the modal/drawer frames near the end of `<body>` so Turbo can target them reliably.

---

## Optional initializer

If you want to customize defaults, create:

- `config/initializers/turbo_crud.rb` (optional)

```ruby
TurboCrud.configure do |c|
  c.default_container = :modal   # or :drawer
  c.default_insert    = :prepend # or :append

# Row partial auto-detect is default (:auto)
  # If your app uses a custom partial path, set it:
  # c.row_partial = "posts/post"

# Optional per-model overrides (safer than one global row_partial):
  # key can be model class, class name, or model symbol/string.
  c.model_defaults = {
    "Blog" => { row_partial: "blogs/blog", container: :drawer, insert: :append }
  }

# Flash rendering:
  # :default      => TurboCrud built-in flash partial
  # :app          => render app partial "shared/flash"
  #                  (auto-wrapped in TurboCrud flash container if your partial is minimal)
  # :off          => disable flash rendering in Turbo stream updates
  # "path/flash"  => custom partial path
  # ->(view, messages:) { ... } => custom renderer proc
  # c.flash_renderer = :app

# Flash placement:
  # :top_right (default), :top_center, :inline
  # c.flash_position = :top_right

# Auto-hide delay in ms (nil to disable)
  # c.flash_auto_hide_ms = 4500
end
```

---

## CSS (Sprockets)
Add:

```css
/*
 *= require turbo_crud
 *= require turbo_crud_modal
 *= require turbo_crud_drawer
 */
```

## CSS (Rails 8 / Propshaft / cssbundling)
If your `application.css` is plain CSS (no Sprockets manifest block), use imports instead:

```css
@import "turbo_crud.css";
@import "turbo_crud_modal.css";
@import "turbo_crud_drawer.css";
```

`turbo_crud:install` now detects this and appends `@import` lines automatically.

If your browser shows `404` for these imports in Rails 8, load the TurboCrud stylesheets directly in layout instead:

```erb
<%= stylesheet_link_tag "application", "data-turbo-track": "reload" %>
<%= stylesheet_link_tag "turbo_crud", "data-turbo-track": "reload" %>
<%= stylesheet_link_tag "turbo_crud_modal", "data-turbo-track": "reload" %>
<%= stylesheet_link_tag "turbo_crud_drawer", "data-turbo-track": "reload" %>
```

Then remove the `@import "turbo_crud*.css"` lines from `application.css` to avoid duplicate requests.

---

## Controller usage

```ruby
class PostsController < ApplicationController
  include TurboCrud::Controller

def create
    @post = Post.new(post_params)
    turbo_create(@post, list: Post, success_message: "Post created!")
  end

def update
    @post = Post.find(params[:id])
    @post.assign_attributes(post_params)
    turbo_update(@post, success_message: "Post updated!")
  end

def destroy
    @post = Post.find(params[:id])
    turbo_destroy(@post, list: Post, success_message: "Post deleted.")
  end
end
```

### Single helper for create/update

```ruby
turbo_save(@post, list: Post, success_message: "Saved!")
```

TurboCrud decides whether to insert (create) or replace (update).

---

## Resource DSL (`turbo_crud_resource`)

You can generate standard CRUD actions with one declaration:

```ruby
class PostsController < ApplicationController
  include TurboCrud::Controller

turbo_crud_resource Post,
    scope: -> { Post.order(created_at: :desc) },
    permit: %i[title body published],
    authorize_with: :pundit, # :pundit, :cancancan, :nil, or omit for auto-detect
    container: :drawer
end
```

What this gives you:
- `index/new/create/edit/update/destroy` actions
- strong params via `permit:`
- `create/update/destroy` wired to TurboCrud responders
- optional authorization adapter hooks (`authorize` / `authorize!`)
- model-level default container (`container:`) used by `turbo_crud_form_with`

Notes:
- `permit:` is required.
- `only:` / `except:` are supported to limit generated actions.
- If `authorize_with:` is omitted, TurboCrud auto-detects in this order:
  1. `authorize!` => CanCanCan
  2. `authorize` => Pundit
  3. none => no authorization call
- `authorize_with: :pundit` expects `authorize`.
- `authorize_with: :cancancan` expects `authorize!`.
- `authorize_with: nil` explicitly disables authorization calls.
- Your normal Rails controller permissions still apply (for example `before_action` checks in `ApplicationController`), because your controller still inherits from it.

If you use your own controller permissions (no Pundit/CanCanCan):

```ruby
# app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
  before_action :authenticate_user!
  before_action :enforce_permissions!

private

def enforce_permissions!
    # your app's permission logic
  end
end

# app/controllers/posts_controller.rb
class PostsController < ApplicationController
  include TurboCrud::Controller
  before_action :authenticate_user!, only: %i[show edit update destroy]
  before_action :enforce_permissions!

turbo_crud_resource Post,
    scope: -> { Post.order(created_at: :desc) },
    permit: %i[title body published],
    authorize_with: nil

private

def enforce_permissions!
    # your app's permission logic
  end
end
```

More controller examples:

```ruby
# app/controllers/posts_controller.rb
class PostsController < ApplicationController
  include TurboCrud::Controller
  include Pundit::Authorization

# Auto-detect would also pick Pundit because `authorize` exists,
  # but this keeps intent explicit.
  turbo_crud_resource Post,
    scope: -> { policy_scope(Post).order(created_at: :desc) },
    permit: %i[title body published],
    authorize_with: :pundit,
    container: :drawer
end

# app/controllers/admin/posts_controller.rb
class Admin::PostsController < ApplicationController
  include TurboCrud::Controller
  include CanCan::ControllerAdditions

# Omitted `authorize_with:` -> auto-detects CanCanCan (`authorize!`)
  turbo_crud_resource Post,
    scope: -> { Post.order(created_at: :desc) },
    permit: %i[title body published featured]
end

# app/controllers/internal/posts_controller.rb
class Internal::PostsController < ApplicationController
  include TurboCrud::Controller

# Explicitly disable authorization calls from the DSL.
  turbo_crud_resource Post,
    scope: -> { Post.order(created_at: :desc) },
    permit: %i[title body published],
    authorize_with: nil
end
```

Equivalent generated action behavior:

```ruby
class PostsController < ApplicationController
  include TurboCrud::Controller

# This declaration generates the CRUD actions.
  turbo_crud_resource Post, permit: %i[title body published], authorize_with: :pundit

# Rough equivalent of generated update:
  # def update
  #   @post = Post.find(params[:id])
  #   authorize(@post)
  #   @post.assign_attributes(params.require(:post).permit(:title, :body, :published))
  #   turbo_update(@post)
  # end
  #
  # Rough equivalent of generated destroy:
  # def destroy
  #   @post = Post.find(params[:id])
  #   authorize(@post)
  #   turbo_destroy(@post, list: Post)
  # end
end
```

---

## Validation and error behavior

TurboCrud validates key options early and raises clear errors:

- `turbo_create` and create-path `turbo_respond` require `list:`
- `insert:` must be `:prepend`, `:append`, or `nil`
- `replace:` must be `:row`, a DOM id (`String`/`Symbol`), or `nil`

If row partial rendering fails, TurboCrud raises:

- `TurboCrud::MissingRowPartialError`

This error includes the model name and the partial candidates TurboCrud tried.

---

## Modal vs Drawer

Links:
- `turbo_crud_modal_link "New", new_post_path`
- `turbo_crud_drawer_link "New", new_post_path`

Forms:
- `turbo_crud_form_with ...` (defaults to your configured container)
- or explicitly: `turbo_crud_form_with ..., frame: TurboCrud.config.drawer_frame_id`
- submit buttons auto-disable during Turbo submit (opt out: `data: { turbo_crud_auto_disable: false }`)
- `Escape` closes active modal/drawer and `Tab` focus stays inside the open container

Example submit button loading text:

```erb
<%= turbo_crud_form_with model: @post do |f| %>
  <%= f.text_field :title %>
  <%= f.submit "Save", data: { turbo_crud_loading_text: "Saving..." } %>
<% end %>
```

---

## Generator

```bash
rails g turbo_crud:scaffold Post title body:text published:boolean views:integer
```

It generates:
- controller wired to TurboCrud
- views: index/new/edit/_row/_form
- `_form` will contain inputs for each attribute you passed.

---

## Notes
TurboCrud is intentionally small. The goal is predictable behavior and easy integration, especially in existing Rails apps.
Small scope, fewer surprises.

## Generator options

By default the scaffold generates **modal** `new/edit` views.

You can switch to **drawer** views:

```bash
rails g turbo_crud:scaffold Post title body:text --container=drawer
```

Or generate **both** (modal files + extra drawer files as `new.drawer.html.erb` / `edit.drawer.html.erb`):

```bash
rails g turbo_crud:scaffold Post title body:text --container=both
```

`--container` is validated strictly and must be one of:

- `modal`
- `drawer`
- `both`

Tip: if you want the whole app to prefer drawers, set:

```ruby
TurboCrud.configure do |c|
  c.default_container = :drawer
end
```

## Existing app integration (step-by-step)

You can keep your existing model, routes, and form partials.
No rewrite-from-scratch drama required.

### 1) Add layout frames once

In `app/views/layouts/application.html.erb` (near end of `<body>`):

```erb
<%= turbo_crud_flash_frame %>
<%= turbo_crud_modal_frame %>
<%= turbo_crud_drawer_frame %>
```

### 2) Update controller actions to TurboCrud responders

Example for an existing `BlogsController`:

```ruby
class BlogsController < ApplicationController
  include TurboCrud::Controller
  before_action :set_blog, only: %i[show edit update destroy]

def index
    @blogs = Blog.order(created_at: :desc)
  end

def new
    @blog = Blog.new
    render(**turbo_crud_template_for(:new))
  end

def edit
    render(**turbo_crud_template_for(:edit))
  end

def create
    @blog = Blog.new(blog_params)
    turbo_create(@blog, list: Blog, row_partial: "blogs/blog", success_message: "Blog created!")
  end

def update
    @blog.assign_attributes(blog_params)
    turbo_update(@blog, row_partial: "blogs/blog", success_message: "Blog updated!")
  end

def destroy
    turbo_destroy(@blog, list: Blog, success_message: "Blog deleted.")
  end
end
```

Note: keep your preferred strong params style (`require/permit` or Rails 8 `expect`).

### 3) Update index to use Turbo list id + row partial collection

Replace the classic scaffold loop:

```erb
<div id="blogs">
  <% @blogs.each do |blog| %>
    <%= render blog %>
  <% end %>
</div>
<%= link_to "New blog", new_blog_path %>
```

with:

```erb
<%= turbo_crud_modal_link "New blog", new_blog_path %>

<div id="<%= turbo_list_id(Blog) %>">
  <%= render partial: "blogs/blog", collection: @blogs, as: :blog %>
</div>
```

Use `turbo_crud_drawer_link` instead if your app prefers drawers.

### 4) Reuse your existing `_blog` partial as the row partial

If you already have `app/views/blogs/_blog.html.erb`, you can use it directly:

```erb
<div id="<%= dom_id blog %>">
  <div>
    <strong>Title:</strong>
    <%= blog.title %>
  </div>

<div>
    <strong>Content:</strong>
    <%= blog.content %>
  </div>

<div class="mt-3">
    <%= turbo_crud_modal_link "Edit", edit_blog_path(blog),
      class: "rounded-xl border border-slate-200 bg-white px-3 py-1.5 text-sm font-semibold text-slate-900 hover:bg-slate-50" %>
  </div>
</div>
```

### 5) Wrap `new/edit` pages so frame requests render container UI

`app/views/blogs/new.html.erb`:

```erb
<%= turbo_crud_container title: "New Blog" do %>
  <%= render "form", blog: @blog %>
<% end %>
```

`app/views/blogs/edit.html.erb`:

```erb
<%= turbo_crud_container title: "Edit Blog" do %>
  <%= render "form", blog: @blog %>
<% end %>
```

If you see "Content missing", it usually means your `new/edit` templates are not rendering inside TurboCrud container/frame markup.

### Drawer `Content missing` fix

If this happens when clicking `turbo_crud_drawer_link`:

1. Confirm your layout includes `<%= turbo_crud_drawer_frame %>`.
2. Confirm `new/edit` use `turbo_crud_container` (or drawer frame wrapper).
3. Confirm the link uses drawer target:
   - `<%= turbo_crud_drawer_link "New", new_blog_path %>`
4. Update to the latest TurboCrud and restart the Rails server (includes frame auto-detection improvements).

If this fixed it, congrats: you and Turbo are friends again.

### Flash message does not update until refresh

If create/update/delete works but the message stays on an older value:

1. Ensure `application.html.erb` has exactly one `<%= turbo_crud_flash_frame %>`.
2. Remove legacy layout flash blocks like `<%= notice %>` and `<%= alert %>`.
3. Ensure your flash partial uses key checks so explicit Turbo locals are respected:

```erb
<% notice_message = local_assigns.key?(:notice) ? local_assigns[:notice] : flash[:notice] %>
<% alert_message  = local_assigns.key?(:alert)  ? local_assigns[:alert]  : flash[:alert] %>
```

4. Use a TurboCrud version where flash stream updates use `update` (not `replace`), so the `turbo_flash` frame id stays targetable across requests.

If your flash still looks haunted, run `bin/rails g turbo_crud:doctor --fix` and check for duplicate flash blocks in your layout.

### 6) Common integration mistakes

- Index list container uses `id="blogs"` instead of `id="<%= turbo_list_id(Blog) %>"`
- Controller `create/update` does not pass `list: Blog`
- No row partial available (`blogs/_row` or `blogs/_blog`)
- `new/edit` renders plain form page instead of `turbo_crud_container`
- Using wrong route helper in row partial (example: `edit_dan_path` instead of `edit_blog_path`)

### Row partial auto-detection (if you don't pass `row_partial`)

TurboCrud tries:
1) `blogs/_row.html.erb`
2) `blogs/_blog.html.erb`
3) `TurboCrud.config.row_partial` (only if path looks compatible with current model)

You can also set globally:

```ruby
TurboCrud.configure do |c|
  c.row_partial = "blogs/blog"
end
```

Tip: if your app has multiple resources, prefer passing `row_partial:` per action/controller instead of one global path.

### Per-model defaults (recommended for multi-resource apps)

Instead of a global `c.row_partial`, use:

```ruby
TurboCrud.configure do |c|
  c.model_defaults = {
    "Blog" => { row_partial: "blogs/blog", container: :drawer, insert: :append },
    "Post" => { container: :modal, insert: :prepend }
  }
end
```

Per-model defaults apply to:
- `row_partial` (create/update rendering)
- `container` (default modal/drawer for `turbo_crud_form_with` / `turbo_crud_container`)
- `insert` (default append/prepend for create)

## Full scaffold generator (model + migration + routes + TurboCrud views)

`full_scaffold` creates:

- Model + migration (like `rails g model ...`)
- Routes (`resources :things`)
- TurboCrud controller + views (modal/drawer/both)

Run it like:

```bash
bin/rails g turbo_crud:full_scaffold Post title body:text published:boolean --container=both
```

Notes:
- TurboCrud does not run `db:migrate` unless you opt in with `--migrate`.
- If routes already exist, TurboCrud won’t double-inject them.

## Main generator: `turbo_crud:scaffold`

By default it generates **controller + views** (no model, no routes):

```bash
bin/rails g turbo_crud:scaffold Post title body:text published:boolean --container=both
```

If you want **FULL scaffold** (model + migration + routes + controller + views), add `--full`:

```bash
bin/rails g turbo_crud:scaffold Post title body:text published:boolean --container=both --full
```

`--full` does not run `db:migrate` by default.
Use `--migrate` to run migrations automatically.

You can control parts:

```bash
bin/rails g turbo_crud:scaffold Post title body:text --full --skip-model
bin/rails g turbo_crud:scaffold Post title body:text --full --skip-routes
```

## Install helper (`--install`)

You can ask the scaffold generator to wire up your app layout + CSS too.

```bash
bin/rails g turbo_crud:scaffold Post title body:text --container=both --install
```

What `--install` does:
- injects these frames near the end of `app/views/layouts/application.html.erb` (before `</body>`):
  - `turbo_crud_flash_frame`
  - `turbo_crud_modal_frame`
  - `turbo_crud_drawer_frame`
- updates `app/assets/stylesheets/application.css`:
  - if Sprockets manifest style is detected, adds:
    - `*= require turbo_crud`
    - `*= require turbo_crud_modal`
    - `*= require turbo_crud_drawer`
  - otherwise appends:
    - `@import "turbo_crud.css";`
    - `@import "turbo_crud_modal.css";`
    - `@import "turbo_crud_drawer.css";`

If it can’t find those files, it prints a warning with manual steps.

You can also use the dedicated installer:

```bash
bin/rails g turbo_crud:install
```

Optional Stimulus behavior setup:

```bash
bin/rails g turbo_crud:install --stimulus
```

---

## Doctor command

TurboCrud includes a diagnostic generator for existing apps:

```bash
bin/rails g turbo_crud:doctor
```

It checks:
- layout frames (`flash`, `modal`, `drawer`)
- controller inclusion of `TurboCrud::Controller`
- presence of view partials for stream rendering

Use strict mode (non-zero exit on issues):

```bash
bin/rails g turbo_crud:doctor --strict
```

Auto-fix common setup issues (layout frames + CSS requires):

```bash
bin/rails g turbo_crud:doctor --fix
```

Auto-fix + optional Stimulus install:

```bash
bin/rails g turbo_crud:doctor --fix --stimulus
```

Think of doctor as: "scan app, find potholes, patch the obvious ones."

---

## CI / Security

This repo includes separate GitHub Actions workflows:

- `Test` workflow: runs `bundle exec rake test` across Ruby/Rails matrix
- `Security` workflow: runs `brakeman` and `bundle-audit`

Run locally:

```bash
bundle exec rake test
bundle exec brakeman --force --no-pager -q
bundle exec bundle-audit check
```

---

## Observability events

TurboCrud emits `ActiveSupport::Notifications` events:

- `turbo_crud.create`
- `turbo_crud.update`
- `turbo_crud.destroy`
- `turbo_crud.row_partial_missing`

Payload includes controller/action, model/id, format, and success/error metadata.

Subscribe example:

```ruby
ActiveSupport::Notifications.subscribe("turbo_crud.create") do |_name, _start, _finish, _id, payload|
  Rails.logger.info("[turbo_crud.create] #{payload.inspect}")
end
```

In most apps, put this in an initializer for centralized logging/metrics.

---

## Compatibility

CI runs the test suite across current Ruby/Rails combinations using the gemfiles in `gemfiles/`.
Check `.github/workflows/test.yml` for the exact matrix used by the current release.

## Releases

- Changelog: `CHANGELOG.md`
- Version policy: backward-incompatible changes are announced in the changelog before major updates.

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