Ruby Rail First Step - Revision history

Nicolas Rollin: /* Form */

2014-11-15T17:21:11Z

Form

← Older revision		Revision as of 17:21, 15 November 2014
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	===Form ===		===Form ===
	* app/views/posts/_form.html.erb		* app/views/posts/_form.html.erb
	<~~pre~~>		<syntaxhighlight lang="ruby">
	<%= form_for(@post) do \|f\| %>		<%= form_for(@post) do \|f\| %>
	<% if @post.errors.any? %>		<% if @post.errors.any? %>
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	</div>		</div>
	<% end %>		<% end %>
	</~~pre~~>		</syntaxhighlight>

	* [http://www.railsdebutant.org/fr_guides/layouts_and_rendering.html#using-partials Layouts and Rendering in Rails]		* [http://www.railsdebutant.org/fr_guides/layouts_and_rendering.html#using-partials Layouts and Rendering in Rails]

2014-11-15T17:11:09Z

Add validation

← Older revision		Revision as of 17:11, 15 November 2014
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	===Add validation===		===Add validation===
	*Add validation into app/modles/post.rb		*Add validation into app/modles/post.rb
	<~~pre~~>class Post < ActiveRecord::Base		<syntaxhighlight lang="ruby">
			class Post < ActiveRecord::Base
	validates :name, :presence => true		validates :name, :presence => true
	validates :title, :presence => true,		validates :title, :presence => true,
	:length => { :minimum => 5 }		:length => { :minimum => 5 }
	end		end
	</~~pre~~>		</syntaxhighlight>

	===Create an Xml List===		===Create an Xml List===
	* Modify the sectioni def index of the file app/controllers/posts_controller.rb		* Modify the sectioni def index of the file app/controllers/posts_controller.rb

2014-11-15T16:40:48Z

Add a second Model linked with the first one

@@ Line 152: / Line 152: @@
 * Rail has generated the migration
 <pre>rake db:migrate</pre>
 ===Add a route ===

2014-11-15T00:54:10Z

Add a second Model linked with the first one

← Older revision		Revision as of 00:54, 15 November 2014
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	[http://www.railsdebutant.org/fr_guides/routing_outside_in.html Rails Routing from the Outside In]		[http://www.railsdebutant.org/fr_guides/routing_outside_in.html Rails Routing from the Outside In]

			===Add a controller===
			<pre>rails generate controller Comments</pre>

2014-11-15T00:49:37Z

Add a second Model linked with the first one

← Older revision		Revision as of 00:49, 15 November 2014
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	* Rail has generated the migration		* Rail has generated the migration
	<pre>rake db:migrate</pre>		<pre>rake db:migrate</pre>

			===Add a route ===
			* Modify route file config/routes.rb
			<pre>
			resources :posts do
			resources :comments
			end
			</pre>

			[http://www.railsdebutant.org/fr_guides/routing_outside_in.html Rails Routing from the Outside In]

2014-11-15T00:38:18Z

Add a second Model linked with the first one

← Older revision		Revision as of 00:38, 15 November 2014
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	</pre>		</pre>
	==Add a second Model linked with the first one==		==Add a second Model linked with the first one==
			* Instead of using the scaffolding we are proceding peice by peice
			* Generate Model
			<pre>rails generate model Comment commenter:string body:text post:references</pre>

			* Rail has generated the Model: the file app/models/comment.rb
			<pre>class Comment < ActiveRecord::Base
			belongs_to :post
			end</pre>

			* Rail has generated the migration
			<pre>rake db:migrate</pre>

2014-11-15T00:29:40Z

← Older revision		Revision as of 00:29, 15 November 2014
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	<pre>root :to => "home#index"</pre>		<pre>root :to => "home#index"</pre>

	==Start to Work with ~~Resources~~==		==Start to Work with Model==

	===Generate ~~a resource~~ (Post)===		===Generate the first Model (Post)===
	<pre>rails generate scaffold Post name:string title:string content:text</pre>		<pre>rails generate scaffold Post name:string title:string content:text</pre>

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	end		end
	</pre>		</pre>
			==Add a second Model linked with the first one==

2014-11-15T00:26:53Z

← Older revision		Revision as of 00:26, 15 November 2014
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	* If you are using field not attached to a model you must use form_tag.		* If you are using field not attached to a model you must use form_tag.

	===Create Post==		===Create Post===

	* Inside the file app/controllers/posts_controller.rb		* Inside the file app/controllers/posts_controller.rb

2014-11-15T00:26:25Z

Creation Process

← Older revision		Revision as of 00:26, 15 November 2014
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	* [http://www.railsdebutant.org/fr_guides/layouts_and_rendering.html#using-partials Layouts and Rendering in Rails]		* [http://www.railsdebutant.org/fr_guides/layouts_and_rendering.html#using-partials Layouts and Rendering in Rails]

	* form_for is ~~usedto~~ create an html form		* form_for is used to create an html form
	* form_for is knows the current transaction is an add or an update		* form_for is knows the current transaction is an add or an update
	* If you are using field not attached to a model you must use form_tag.		* If you are using field not attached to a model you must use form_tag.

2014-11-15T00:25:35Z

Creation Process

← Older revision		Revision as of 00:25, 15 November 2014
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	* form_for is knows the current transaction is an add or an update		* form_for is knows the current transaction is an add or an update
	* If you are using field not attached to a model you must use form_tag.		* If you are using field not attached to a model you must use form_tag.

			===Create Post==

			* Inside the file app/controllers/posts_controller.rb
			<pre>
			def create
			@post = Post.new(params[:post])

			respond_to do \|format\|
			if @post.save
			format.html { redirect_to(@post,
			:notice => 'Post was successfully created.') }
			format.xml { render :xml => @post,
			:status => :created, :location => @post }
			else
			format.html { render :action => "new" }
			format.xml { render :xml => @post.errors,
			:status => :unprocessable_entity }
			end
			end
			end
			</pre>