Skip to content

Not scaffolding. Resourcing. Creates extremely customizable resource controllers with one line of code.

License

Notifications You must be signed in to change notification settings

hfwang/resource_this

 
 

Repository files navigation

resouce_this

Not scaffolding. Resourcing. Creates extremely customizable resource controllers with one line of code.

class PostsController < ActionController::Base
 resource_this
end

...will generate the following code:

class PostsController < ActionController::Base
  before_filter :load_post, :only => [ :show, :edit, :update, :destroy ]
  before_filter :load_posts, :only => [ :index ]
  before_filter :new_post, :only => [ :new ]
  before_filter :create_post, :only => [ :create ]
  before_filter :update_post, :only => [ :update ]
  before_filter :destroy_post, :only => [ :destroy ]

  protected
  def load_post
    @post = Post.find(params[:id])
  end

  def new_post
    @post = Post.new
  end

  def create_post
    @post = Post.new(params[:post])
    @created = @post.save
    return true
  end

  def update_post
    @updated = @post.update_attributes(params[:post])
    return true
  end

  def destroy_post
    @post = @post.destroy
  end

  def load_posts
    @posts = Post.find(:all)
  end

  public
  def index
    respond_to do |format|
      format.html
      format.xml  { render :xml => @posts }
      format.js
    end
  end

  def show
    respond_to do |format|
      format.html
      format.xml  { render :xml => @post }
      format.js
    end
  end

  def new
    respond_to do |format|
      format.html { render :action => :edit }
      format.xml  { render :xml => @post }
      format.js
    end
  end

  def create
    respond_to do |format|
      if @created
        flash[:notice] = 'Post was successfully created.'
        format.html { redirect_to @post }
        format.xml  { render :xml => @post, :status => :created, :location => @post }
        format.js
      else
        format.html { render :action => :new }
        format.xml  { render :xml => @post.errors, :status => :unprocessable_entity }
        format.js
      end
    end
  end

  def edit
    respond_to do |format|
      format.html
      format.js
    end
  end

  def update
    respond_to do |format|
      if @updated
        flash[:notice] = 'Post was successfully updated.'
        format.html { redirect_to @post }
        format.xml  { head :ok }
        format.js
      else
        format.html { render :action => :edit }
        format.xml  { render :xml => @post.errors, :status => :unprocessable_entity }
        format.js
      end
    end
  end

  def destroy
    respond_to do |format|
      format.html { redirect_to :action => posts_url }
      format.xml  { head :ok }
      format.js
    end
  end
end

Nested Resources

class CommentsController < ActionController::Base
  resource_this :nested => [:posts]
end

This generates a very similar controller to the one above with adjusted redirects and one additional before_filter / loader method pair to grab the parent resource. In this case:

  before_filter :load_post

  def load_post
    @post = Post.find(params[:post_id])
  end

Sorting, etc

class CommentsController < ActionController::Base
  resource_this :finder_options => {:order => 'created_on'}
end

...or, for lazily evaluated sorting options:

class CommentsController < ActionController::Base
  resource_this :finder_options => Proc.new { finder_options }

  protected

  def finder_options
    order = case params[:sort]
      when 'date_reverse'          then 'created_on desc'
      else 'created_on'
    end
    {:order => order, :limit => params[:limit] || 10 }
  end

end

will_paginate

will_paginate support is baked right in:

class CommentsController < ActionController::Base
  resource_this :will_paginate => true
end

This works with the :finder_options option as well

Opinionated Software

The separation of logic - DB operations in before_filters, rendering in the standard resource controller methods - makes this approach ridiculously easy to customize. Need to load an additional object for the :show action? Slap another before_filter on it. Need to change the path that the :update action redirects to? Override the :update action with your new rendering behavior.

Generator

A resource_this generator is included - does the same thing as the 'resource' generator but adds 'resource_this' to the generated controller.

Questions? Comments? Flames? Patches?

jnewland@gmail.com

Copyright

Copyright (c) 2007 Jesse Newland, released under the MIT license

About

Not scaffolding. Resourcing. Creates extremely customizable resource controllers with one line of code.

Resources

License

Stars

Watchers

Forks

Packages

No packages published

Languages

  • Ruby 100.0%