diff options
Diffstat (limited to 'guides/source')
| -rw-r--r-- | guides/source/getting_started.md | 126 |
1 files changed, 71 insertions, 55 deletions
diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md index e7880ca642..8966eef76a 100644 --- a/guides/source/getting_started.md +++ b/guides/source/getting_started.md @@ -1028,17 +1028,21 @@ something went wrong. To do that, you'll modify ```html+erb <%= form_for :article, url: articles_path do |f| %> + <% if @article.errors.any? %> - <div id="error_explanation"> - <h2><%= pluralize(@article.errors.count, "error") %> prohibited - this article from being saved:</h2> - <ul> - <% @article.errors.full_messages.each do |msg| %> - <li><%= msg %></li> - <% end %> - </ul> - </div> + <div id="error_explanation"> + <h2> + <%= pluralize(@article.errors.count, "error") %> prohibited + this article from being saved: + </h2> + <ul> + <% @article.errors.full_messages.each do |msg| %> + <li><%= msg %></li> + <% end %> + </ul> + </div> <% end %> + <p> <%= f.label :title %><br> <%= f.text_field :title %> @@ -1052,6 +1056,7 @@ something went wrong. To do that, you'll modify <p> <%= f.submit %> </p> + <% end %> <%= link_to 'Back', articles_path %> @@ -1100,17 +1105,21 @@ it look as follows: <h1>Editing article</h1> <%= form_for :article, url: article_path(@article), method: :patch do |f| %> + <% if @article.errors.any? %> - <div id="error_explanation"> - <h2><%= pluralize(@article.errors.count, "error") %> prohibited - this article from being saved:</h2> - <ul> - <% @article.errors.full_messages.each do |msg| %> - <li><%= msg %></li> - <% end %> - </ul> - </div> + <div id="error_explanation"> + <h2> + <%= pluralize(@article.errors.count, "error") %> prohibited + this article from being saved: + </h2> + <ul> + <% @article.errors.full_messages.each do |msg| %> + <li><%= msg %></li> + <% end %> + </ul> + </div> <% end %> + <p> <%= f.label :title %><br> <%= f.text_field :title %> @@ -1124,6 +1133,7 @@ it look as follows: <p> <%= f.submit %> </p> + <% end %> <%= link_to 'Back', articles_path %> @@ -1187,14 +1197,14 @@ it appear next to the "Show" link: <th colspan="2"></th> </tr> -<% @articles.each do |article| %> - <tr> - <td><%= article.title %></td> - <td><%= article.text %></td> - <td><%= link_to 'Show', article_path(article) %></td> - <td><%= link_to 'Edit', edit_article_path(article) %></td> - </tr> -<% end %> + <% @articles.each do |article| %> + <tr> + <td><%= article.title %></td> + <td><%= article.text %></td> + <td><%= link_to 'Show', article_path(article) %></td> + <td><%= link_to 'Edit', edit_article_path(article) %></td> + </tr> + <% end %> </table> ``` @@ -1228,17 +1238,21 @@ content: ```html+erb <%= form_for @article do |f| %> + <% if @article.errors.any? %> - <div id="error_explanation"> - <h2><%= pluralize(@article.errors.count, "error") %> prohibited - this article from being saved:</h2> - <ul> - <% @article.errors.full_messages.each do |msg| %> - <li><%= msg %></li> - <% end %> - </ul> - </div> + <div id="error_explanation"> + <h2> + <%= pluralize(@article.errors.count, "error") %> prohibited + this article from being saved: + </h2> + <ul> + <% @article.errors.full_messages.each do |msg| %> + <li><%= msg %></li> + <% end %> + </ul> + </div> <% end %> + <p> <%= f.label :title %><br> <%= f.text_field :title %> @@ -1252,6 +1266,7 @@ content: <p> <%= f.submit %> </p> + <% end %> ``` @@ -1333,16 +1348,17 @@ together. <th colspan="3"></th> </tr> -<% @articles.each do |article| %> - <tr> - <td><%= article.title %></td> - <td><%= article.text %></td> - <td><%= link_to 'Show', article_path(article) %></td> - <td><%= link_to 'Edit', edit_article_path(article) %></td> - <td><%= link_to 'Destroy', article_path(article), - method: :delete, data: { confirm: 'Are you sure?' } %></td> - </tr> -<% end %> + <% @articles.each do |article| %> + <tr> + <td><%= article.title %></td> + <td><%= article.text %></td> + <td><%= link_to 'Show', article_path(article) %></td> + <td><%= link_to 'Edit', edit_article_path(article) %></td> + <td><%= link_to 'Destroy', article_path(article), + method: :delete, + data: { confirm: 'Are you sure?' } %></td> + </tr> + <% end %> </table> ``` @@ -1552,8 +1568,8 @@ So first, we'll wire up the Article show template </p> <% end %> -<%= link_to 'Back', articles_path %> -| <%= link_to 'Edit', edit_article_path(@article) %> +<%= link_to 'Back', articles_path %> | +<%= link_to 'Edit', edit_article_path(@article) %> ``` This adds a form on the `Article` show page that creates a new comment by @@ -1823,7 +1839,7 @@ database and send us back to the show action for the article. ### Deleting Associated Objects -If you delete an article then its associated comments will also need to be +If you delete an article, its associated comments will also need to be deleted. Otherwise they would simply occupy space in the database. Rails allows you to use the `dependent` option of an association to achieve this. Modify the Article model, `app/models/article.rb`, as follows: @@ -1841,21 +1857,21 @@ Security ### Basic Authentication -If you were to publish your blog online, anybody would be able to add, edit and +If you were to publish your blog online, anyone would be able to add, edit and delete articles or delete comments. Rails provides a very simple HTTP authentication system that will work nicely in this situation. -In the `ArticlesController` we need to have a way to block access to the various -actions if the person is not authenticated, here we can use the Rails -`http_basic_authenticate_with` method, allowing access to the requested +In the `ArticlesController` we need to have a way to block access to the +various actions if the person is not authenticated. Here we can use the Rails +`http_basic_authenticate_with` method, which allows access to the requested action if that method allows it. To use the authentication system, we specify it at the top of our -`ArticlesController`, in this case, we want the user to be authenticated on -every action, except for `index` and `show`, so we write that in -`app/controllers/articles_controller.rb`: +`ArticlesController` in `app/controllers/articles_controller.rb`. In our case, +we want the user to be authenticated on every action except `index` and `show`, +so we write that: ```ruby class ArticlesController < ApplicationController |