gistfile1.txt

Here’s a **minimal, idiomatic Rails example** wiring **`Current.organization`** into your routes and URL generation using your scoped routes.

---

## 1. `Current`

```ruby
class Current < ActiveSupport::CurrentAttributes
  attribute :organization
end
```

---

## 2. Routes

```ruby
Rails.application.routes.draw do
  scope(
    path: "(/o/:organization_path)",
    constraints: {
      organization_path: Gitlab::PathRegex.organization_route_regex
    }
  ) do
    draw_all_routes
  end
end
```

This means every route can optionally be prefixed with:

```
/o/:organization_path
```

---

## 3. Load organization into `Current`

```ruby
class ApplicationController < ActionController::Base
  before_action :set_current_organization

  private

  def set_current_organization
    return unless params[:organization_path]

    Current.organization = Organization.find_by!(
      path: params[:organization_path]
    )
  end
end
```

---

## 4. `default_url_options` using `Current.organization`

```ruby
class ApplicationController < ActionController::Base
  def default_url_options
    return {} unless Current.organization

    {
      organization_path: Current.organization.path
    }
  end
end
```

Now all `*_url` helpers automatically include `/o/:organization_path`.

---

## 5. Resulting behavior

```ruby
projects_url
```

Generates:

```
https://example.com/o/acme/projects
```

If `Current.organization` is `nil`:

```
https://example.com/projects
```

---

## 6. Controllers / views / redirects

All of these now work automatically:

```ruby
redirect_to project_url(@project)
link_to "Projects", projects_path
```

---

## 7. Mailers

```ruby
class ApplicationMailer < ActionMailer::Base
  def default_url_options
    return {} unless Current.organization

    {
      organization_path: Current.organization.path
    }
  end
end
```

---

## 8. Background jobs

```ruby
class ExampleJob < ApplicationJob
  def perform(organization_id)
    Current.organization = Organization.find(organization_id)
    ProjectsController.helpers.projects_url
  ensure
    Current.reset
  end
end
```

---

## Key properties of this setup

* Optional org prefix works transparently
* No global mutation
* Thread-safe
* Matches GitLab-style routing
* `_path` and `_url` both behave correctly

---

If you want, I can also show:

* enforcing org presence for certain controllers
* how to fall back to subdomain instead of `/o/:path`
* preventing route generation without `Current.organization`
* test helpers for this pattern