MerbAuthSlicePassword ======

A slice for the Merb framework that uses the merb-auth-core authentication framework. This slice provides a basic login and logout function. By default it also include the form based password logins and basic authentication.

To see how to customize it see the merb-auth-core

To use this slice setup some strategies and make sure you have everything required there. Usually a “User” model of some kind.

To overwrite the login form, you should just create a view file in app/views/exceptions/unauthenticated.html.erb in the host app.

By default the slice will load the password_form and the basic_auth strategies. To prevent the slice from loading strategeis use: MerbAutheSliceDefault[:no_default_strategies] = true


|-- README.textile
|-- Rakefile
|-- TODO
|-- app
|   |-- controllers
|   |   |-- application.rb
|   |   |-- exceptions.rb
|   |   `-- sessions.rb
|   |-- helpers
|   |   `-- application_helper.rb
|   `-- views
|       |-- exceptions
|       |   `-- unauthenticated.html.erb
|       `-- layout
|           `-- mauth_password_slice.html.erb
|-- lib
|   |-- merb-auth-slice-password
|   |   |-- merbtasks.rb
|   |   |-- slicetasks.rb
|   |   `-- spectasks.rb
|   `-- merb-auth-slice-password.rb
|-- public
|   |-- javascripts
|   |   `-- master.js
|   `-- stylesheets
|       `-- master.css
|-- spec
|   |-- controllers
|   |   `-- main_spec.rb
|   |-- mauth_password_slice_spec.rb
|   `-- spec_helper.rb
`-- stubs
    `-- app
        `-- controllers
            |-- application.rb
            `-- main.rb

1. Rake tasks to package/install the gem – edit this to modify the manifest. 2. The slice application: controllers, models, helpers, views. 3. The default layout, as specified in Merb::Slices::config[:mauth_password_slice][:layout] change this to :application to use the app’s layout. 4. Standard rake tasks available to your application. 5. Your custom application rake tasks. 6. The main slice file – contains all slice setup logic/config. 7. Public assets you (optionally) install using rake slices:mauth_password_slice:install 8. Specs for basis slice behaviour – you usually adapt these for your slice. 9. Stubs of classes/views/files for the end-user to override – usually these mimic the files in app/ and/or public/; use rake slices:mauth_password_slice:stubs to get started with the override stubs. Also, slices:mauth_password_slice:patch will copy over views to override in addition to the files found in /stubs.

To see all available tasks for MerbAuthSlicePassword run:

rake -T slices:mauth_password_slice

Instructions for installation:

file: config/init.rb

  1. add the slice as a regular dependency

dependency ‘merb-auth-slice-password’

  1. if needed, configure which slices to load and in which order

Merb::Plugins.config[:merb_slices] = { :queue => [“MerbAuthSlicePassword”, …] }

  1. Setup your application to use MerbAuthSlicePassword in an after_app_loads block
  1. To change the login or password field to a field of your choice Set Merb::Plugin.config[:“merb-auth”][:login_param] Merb::Plugin.config[:“merb-auth”][:password_param]

These are used to setup the login and password fields and the labels that are shown. The defaults are shown

Included Strategies

By default the password slice loads the :default_password_form strategy from merb-auth-more. If you don’t want to use this you should set the MerbAutheSlicePassword[:no_default_strategies] = true

This will prevent it from loading any strategies.

file: config/router.rb

  1. Any of the options can be left out for the defaults slice(:MerbAuthSlicePassword, :name_prefix => nil, :path_prefix => “auth”, :default_routes => false )

Normally you should also run the following rake task:

rake slices:merb-auth-slice-password:install

You can put your application-level overrides in:

host-app/slices/merb-auth-slice-password/app – controllers, models, views …

Templates are located in this order:

1. host-app/slices/merb-auth-slice-password/app/views/* 2. gems/mauth_password_slice/app/views/* 3. host-app/app/views/*

To customize the login form, create a view in your host-app


The host-app’s application layout is used by default

You can use the host application’s layout by configuring the merb-auth-slice-password slice in a before_app_loads block:

You’ll need to setup the Merb::Authentication::Manager#fetch_user and store_user methods for your given user model.

About Slices ====

Merb-Slices is a Merb plugin for using and creating application ‘slices’ which help you modularize your application. Usually these are reuseable extractions from your main app. In effect, a Slice is just like a regular Merb MVC application, both in functionality as well as in structure.

When you generate a Slice stub structure, a module is setup to serve as a namespace for your controller, models, helpers etc. This ensures maximum encapsulation. You could say a Slice is a mixture between a Merb plugin (a Gem) and a Merb application, reaping the benefits of both.

A host application can ‘mount’ a Slice inside the router, which means you have full over control how it integrates. By default a Slice’s routes are prefixed by its name (a router :namespace), but you can easily provide your own prefix or leave it out, mounting it at the root of your url-schema. You can even mount a Slice multiple times and give extra parameters to customize an instance’s behaviour.

A Slice’s Application controller uses controller_for_slice to setup slice specific behaviour, which mainly affects cascaded view handling. Additionaly, this method is available to any kind of controller, so it can be used for Merb Mailer too for example.

There are many ways which let you customize a Slice’s functionality and appearance without ever touching the Gem-level code itself. It’s not only easy to add template/layout overrides, you can also add/modify controllers, models and other runtime code from within the host application.

To create your own Slice run this (somewhere outside of your merb app):

$ merb-gen slice