diff options
Diffstat (limited to 'guides/source/getting_started.md')
| -rw-r--r-- | guides/source/getting_started.md | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md index 46115afb8c..599e47949d 100644 --- a/guides/source/getting_started.md +++ b/guides/source/getting_started.md @@ -29,7 +29,7 @@ prerequisites installed: Rails is a web application framework running on the Ruby programming language. If you have no prior experience with Ruby, you will find a very steep learning curve diving straight into Rails. There are some good free resources on the -internet for learning Ruby, including: +Internet for learning Ruby, including: * [Mr. Neighborly's Humble Little Ruby Book](http://www.humblelittlerubybook.com) * [Programming Ruby](http://www.ruby-doc.org/docs/ProgrammingRuby/) @@ -853,8 +853,7 @@ it look as follows: ```html+erb <h1>Editing post</h1> -<%= form_for :post, url: post_path(@post.id) }, -method: :patch do |f| %> +<%= form_for :post, url: post_path(@post.id), method: :patch do |f| %> <% if @post.errors.any? %> <div id="errorExplanation"> <h2><%= pluralize(@post.errors.count, "error") %> prohibited @@ -934,7 +933,7 @@ appear next to the "Show" link: <tr> <td><%= post.title %></td> <td><%= post.text %></td> - <td><%= link_to 'Show', post_path %></td> + <td><%= link_to 'Show', post_path(post) %></td> <td><%= link_to 'Edit', edit_post_path(post) %></td> </tr> <% end %> @@ -1076,7 +1075,7 @@ together. <tr> <td><%= post.title %></td> <td><%= post.text %></td> - <td><%= link_to 'Show', post_path %></td> + <td><%= link_to 'Show', post_path(post) %></td> <td><%= link_to 'Edit', edit_post_path(post) %></td> <td><%= link_to 'Destroy', post_path(post), method: :delete, data: { confirm: 'Are you sure?' } %></td> @@ -1149,19 +1148,17 @@ class CreateComments < ActiveRecord::Migration create_table :comments do |t| t.string :commenter t.text :body - t.references :post + t.references :post, index: true t.timestamps end - - add_index :comments, :post_id end end ``` The `t.references` line sets up a foreign key column for the association between -the two models. And the `add_index` line sets up an index for this association -column. Go ahead and run the migration: +the two models. An index for this association is also created on this column. +Go ahead and run the migration: ```bash $ rake db:migrate @@ -1173,10 +1170,8 @@ run against the current database, so in this case you will just see: ```bash == CreateComments: migrating ================================================= -- create_table(:comments) - -> 0.0008s --- add_index(:comments, :post_id) - -> 0.0003s -== CreateComments: migrated (0.0012s) ======================================== + -> 0.0115s +== CreateComments: migrated (0.0119s) ======================================== ``` ### Associating Models |