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Diffstat (limited to 'guides/source/layouts_and_rendering.md')
| -rw-r--r-- | guides/source/layouts_and_rendering.md | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/guides/source/layouts_and_rendering.md b/guides/source/layouts_and_rendering.md index c8702f54fc..76b325d0bf 100644 --- a/guides/source/layouts_and_rendering.md +++ b/guides/source/layouts_and_rendering.md @@ -221,7 +221,7 @@ service requests that are expecting something other than proper HTML. NOTE: By default, if you use the `:plain` option, the text is rendered without using the current layout. If you want Rails to put the text into the current -layout, you need to add the `layout: true` option and use the `.txt.erb` +layout, you need to add the `layout: true` option and use the `.text.erb` extension for the layout file. #### Rendering HTML @@ -379,6 +379,7 @@ Rails understands both numeric status codes and the corresponding symbols shown | | 415 | :unsupported_media_type | | | 416 | :range_not_satisfiable | | | 417 | :expectation_failed | +| | 421 | :misdirected_request | | | 422 | :unprocessable_entity | | | 423 | :locked | | | 424 | :failed_dependency | @@ -386,6 +387,7 @@ Rails understands both numeric status codes and the corresponding symbols shown | | 428 | :precondition_required | | | 429 | :too_many_requests | | | 431 | :request_header_fields_too_large | +| | 451 | :unavailable_for_legal_reasons | | **Server Error** | 500 | :internal_server_error | | | 501 | :not_implemented | | | 502 | :bad_gateway | @@ -411,6 +413,8 @@ render formats: :xml render formats: [:json, :xml] ``` +If a template with the specified format does not exist an `ActionView::MissingTemplate` error is raised. + #### Finding Layouts To find the current layout, Rails first looks for a file in `app/views/layouts` with the same base name as the controller. For example, rendering actions from the `PhotosController` class will use `app/views/layouts/photos.html.erb` (or `app/views/layouts/photos.builder`). If there is no such controller-specific layout, Rails will use `app/views/layouts/application.html.erb` or `app/views/layouts/application.builder`. If there is no `.erb` layout, Rails will use a `.builder` layout if one exists. Rails also provides several ways to more precisely assign specific layouts to individual controllers and actions. @@ -766,7 +770,7 @@ WARNING: The asset tag helpers do _not_ verify the existence of the assets at th #### Linking to Feeds with the `auto_discovery_link_tag` -The `auto_discovery_link_tag` helper builds HTML that most browsers and feed readers can use to detect the presence of RSS or Atom feeds. It takes the type of the link (`:rss` or `:atom`), a hash of options that are passed through to url_for, and a hash of options for the tag: +The `auto_discovery_link_tag` helper builds HTML that most browsers and feed readers can use to detect the presence of RSS, Atom, or JSON feeds. It takes the type of the link (`:rss`, `:atom`, or `:json`), a hash of options that are passed through to url_for, and a hash of options for the tag: ```erb <%= auto_discovery_link_tag(:rss, {action: "feed"}, @@ -1155,7 +1159,7 @@ To pass a local variable to a partial in only specific cases use the `local_assi <%= render article, full: true %> ``` -* `_articles.html.erb` +* `_article.html.erb` ```erb <h2><%= article.title %></h2> @@ -1169,7 +1173,7 @@ To pass a local variable to a partial in only specific cases use the `local_assi This way it is possible to use the partial without the need to declare all local variables. -Every partial also has a local variable with the same name as the partial (minus the underscore). You can pass an object in to this local variable via the `:object` option: +Every partial also has a local variable with the same name as the partial (minus the leading underscore). You can pass an object in to this local variable via the `:object` option: ```erb <%= render partial: "customer", object: @new_customer %> |