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Nesting respond_to calls can lead to unexpected behavior, so it should be
avoided. Currently, the first respond_to format match sets the content-type
for the resulting response. But, if a nested respond_to occurs, it is possible
to match on a different format. For example:
respond_to do |outer_type|
outer_type.js do
respond_to do |inner_type|
inner_type.html { render body: "HTML" }
end
end
end
Browsers will often include */* in their Accept headers. In the above example,
such a request would result in the outer_type.js match setting the content-
type of the response to text/javascript, while the inner_type.html match will
cause the actual response to return "HTML".
This change tries to minimize potential breakage by only raising an exception
if the nested respond_to calls are in conflict with each other. So, something
like the following example would not raise an exception:
respond_to do |outer_type|
outer_type.js do
respond_to do |inner_type|
inner_type.js { render body: "JS" }
end
end
end
While the above is nested, it doesn't affect the content-type of the response.
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Create MissingExactTemplate exception with separate template
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`UnknownController` was added in b1999be, but it is not used anywhere.
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This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
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The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.
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Prior to this change, given a route:
# config/routes.rb
get ':a' => "foo#bar"
If one pointed to http://example.com/%BE (param `a` has invalid encoding),
a `BadRequest` would be raised with the following non-informative message:
ActionController::BadRequest
From now on the message displayed is:
Invalid parameter encoding: hi => "\xBE"
Fixes #21923.
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Many named routes have keys that are required to successfully resolve. If a key is left off like this:
<%= link_to 'user', user_path %>
This will produce an error like this:
No route matches {:action=>"show", :controller=>"users"}
Since we know that the :id is missing, we can add extra debugging information to the error message.
No route matches {:action=>"show", :controller=>"users"} missing required keys: [:id]
This will help new and seasoned developers look closer at their parameters. I've also subclassed the routing error to be clear that this error is a result of attempting to generate a url and not because the user is trying to visit a bad url.
While this may sound trivial this error message is misleading and confuses most developers. The important part isn't what's in the options its's what's missing. Adding this information to the error message will make debugging much more obvious.
This is the sister pull request of https://github.com/rails/journey/pull/44 which will be required to get they missing keys into the correct error message.
Example Development Error in Rails: http://cl.ly/image/3S0T0n1T3421
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Currently Rack raises a TypeError when it encounters a malformed or
ambiguous hash like `foo[]=bar&foo[4]=bar`. Rather than pass this
through to the application this commit captures the exception and
re-raises it using a new ActionController::BadRequest exception.
The new ActionController::BadRequest exception returns a 400 error
instead of the 500 error that would've been returned by the original
TypeError. This allows exception notification libraries to ignore
these errors if so desired.
Closes #3051
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format, rather than responding with a head :not_acceptable (406)
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too much of a hack
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their module locations
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