Sign in to your account. An ActionController::UnknownFormat exception should occur, which in production mode results in a The index. With rails 4. Thus, unless this is expected behavior with rails 5, it would seem to be a bug. The behavior certainly caught me off-guard, is not intuitive, and took longer than I would like to admit to discover that the lack of the. The text was updated successfully, but these errors were encountered:.
Taking a guess, I think that might be causing this, since it was a large change in implicit rendering behavior for 5. Sorry, something went wrong. Looks like :html is being added as a template handler for the XML request. When I inspect the details variable on Rails 5.
Rails 4. Notice the :html handler in Rails 5. I think that explains why it renders the. It's like it sees. Whereas with the. I'm assuming that the right solution is to not include :html in the list of handlers when rendering an XML format.
I'm happy to keep digging into this one, and I can work on a patch if I figure it out. However it's not particularly intuitive but I'm not sure we have a way of saying only use these handlers for these formats - though I'm prepared to be corrected on that. Is that documented behavior? Again, I would expect that without two levels of extensions e. I can see how the catch-all behavior might be useful if that was what someone wanted. However, due to the fact that HTML is both a format and a handler, it seems more likely that the result is not what many users would want.
I was thinking about this tonight, and this is just speculation, but I think one could argue the following:. In this case, the only time this bug will crop up is when you have an action that uses a single non-html template but you create a. The following example demonstrates how one can stream a large amount of on-the-fly generated data to the browser:. Rendering of an inline template works as a cross between text and action rendering where the source for the template is supplied inline, like text, but its interpreted with ERb or Builder, like action.
By default, ERb is used for rendering and the current layout is not used. In addition to rendering JavaScriptGenerator page updates with Ajax in RJS templates see ActionView::Base for details , you can also pass the :update parameter to render, along with a block, to render page updates inline.
All renders take the :status and :location options and turn them into headers. They can even be used together:. Note that the :status option accepts not only an HTTP status code such as , but also a symbol representing that code such as :created , if that makes more sense to you.
For example:. If your controller action does not explicitly call render, Rails will, by default, attempt to locate and render the template corresponding to the action. This will circumvent the default rendering and prevent errors on missing templates. To render nothing simply do the following:.
Why does it matter? Well, you can still test your controller by asserting that a :success response was returned. You can wrap render in helpers. In Edge Rails you can do something like this to change the local variable name when rendering a collection:. However there is no equivalent for YAML. What you can do is render just plain text with a correct content-type:. Note that as of Rails 2. This is a useful feature when you have a collection of items rendered but then wish to add another one - most likely via an AJAX request.
If you provide the :callback option with a nil value, then the default JSON object will be returned. As such, this makes creating JSONP response from the render syntax very easy in your controllers, like so:. Mongrel returns a StringIO, which by nature buffers everything. Unsure of how to actually stream output with Rails in a consistent fashion. Suppose your application have many pages using some common view and is updated using ajax,so you can use a single js in multiple views to avoid duplication.
Improve this question. Are you sure that cases is populated before you pass it for rendering? Yes, it is I thought it worth checking as it's always worth trying the simple things first. Add a comment. Active Oldest Votes. Improve this answer. Michael Malov Michael Malov 1, 1 1 gold badge 12 12 silver badges 20 20 bronze badges. But if I remove the view, I get a Template is missing error. I just don't get it in the view Actually it did work.
There was a mistake in my code which throwing me off. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
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