Collections can take advantage of `multi_read` if they render one template
and their partials begin with a cache call.
The cache call must correspond to either what the collections elements are
rendered as, or match the inferred name of the partial.
So with a notifications/_notification.html.erb template like:
```ruby
<% cache notification %>
<%# ... %>
<% end %>
```
A collection would be able to use `multi_read` if rendered like:
```ruby
<%= render @notifications %>
<%= render partial: 'notifications/notification', collection: @notifications, as: :notification %>
```
Dir.glob can be a security concern. The original use was to provide logic of fallback files. Example a request to `/` should render the file from `/public/index.html`. We can replace the dir glob with the specific logic it represents. The glob {,index,index.html} will look for the current path, then in the directory of the path with index file and then in the directory of the path with index.html. This PR replaces the glob logic by manually checking each potential match. Best case scenario this results in one less file API request, worst case, this has one more file API request.
Related to #16464
Update: added a test for when a file of a given name (`public/bar.html` and a directory `public/bar` both exist in the same root directory. Changed logic to accommodate this scenario.
- don't mutate PATH_INFO in env, test
- test fallback content type matches Rack::File
- change assertion style
- make HTTP_ACCEPT_ENCODING comparison case insensitive
- return gzip path from method instead of true/false so we don't have to assume later
- don't allocate un-needed hash.
Original comments:
https://github.com/rails/rails/commit/
cfaaacd9763642e91761de54c90669a88d772e5a#commitcomment-7468728
cc @jeremy
If someone is using ActionDispatch::Static to serve assets and makes it past the `match?` then the file exists on disk and it will be served. This PR adds in logic that checks to see if the file being served is already compressed (via gzip) and on disk, if it is it will be served as long as the client can handle gzip encoding. If not, then a non gzip file will be served.
This additional logic slows down an individual asset request but should speed up the consumer experience as compressed files are served and production applications should be delivered with a CDN. This PR allows a CDN to cache a gzip file by setting the `Vary` header appropriately. In net this should speed up a production application that are using Rails as an origin for a CDN. Non-asset request speed is not affected in this PR.
Related to: #14242#14243 14293
Variants passed to LookupContext#find() seem to be ignored, so
I've used the setter instead: `finder.variants = [ variant ]`.
I've also added some more test cases for variants. Hopefully this
time passing tests will mean it actually works.
In #5337 we forced the path encoding to ASCII-8BIT to prevent static
file handling from blowing up before an application has had chance to
deal with possibly invalid urls. However this has a negative side
effect of making it an incompatible encoding if the application's
public path has UTF-8 characters in it.
To work around the problem we check to see if the path has a valid
encoding once it has been unescaped. If it is not valid then we can
return early since it will not match any file anyway.
Fixes#13518
Like `format.any`, you can do the same with variants.
It works for both inline:
respond_to do |format|
format.html.any { render text: "any" }
format.html.phone { render text: "phone" }
end
and block syntax:
respond_to do |format|
format.html do |variant|
variant.any(:tablet, :phablet){ render text: "any" }
variant.phone { render text: "phone" }
end
end
In most cases, when setting variant specific code, you're not sharing any code
within format.
Inline syntax can vastly simplify defining variants in those situations:
respond_to do |format|
format.js { render "trash" }
format.html do |variant|
variant.phone { redirect_to progress_path }
variant.none { render "trash" }
end
end
Becomes:
respond_to do |format|
format.js { render "trash" }
format.html.phone { redirect_to progress_path }
format.html.none { render "trash" }
end
By default, variants in the templates will be picked up if a variant is set
and there's a match. The format will be:
app/views/projects/show.html.erb
app/views/projects/show.html+tablet.erb
app/views/projects/show.html+phone.erb
If request.variant = :tablet is set, we'll automatically be rendering the
html+tablet template.
In the controller, we can also tailer to the variants with this syntax:
class ProjectsController < ActionController::Base
def show
respond_to do |format|
format.html do |html|
@stars = @project.stars
html.tablet { @notifications = @project.notifications }
html.phone { @chat_heads = @project.chat_heads }
end
format.js
format.atom
end
end
end
The variant itself is nil by default, but can be set in before filters, like
so:
class ApplicationController < ActionController::Base
before_action do
if request.user_agent =~ /iPad/
request.variant = :tablet
end
end
end
This is modeled loosely on custom mime types, but it's specifically not
intended to be used together. If you're going to make a custom mime type,
you don't need a variant. Variants are for variations on a single mime
types.
This PR fixes#13064 regression bug introduced by the #8085
Now in _process_format when the format is a Mime::NullType nothing is written in self.content_type.
In this way the method Response#assign_default_content_type_and_charset can
write the the default mime_type.
This fixes an issue where the respond_with worked directly with the given
options hash, so that if a user relied on it after calling respond_with,
the hash wouldn't be the same.
Fixes#12029
HelperyTestHelper was introduced in 66ef922 by @josevalim
to pair with HelperyTestController. This test controller was
later removed in e10a253 by @strzalek, leaving HelperyTestHelper unused
When helper try to require missing file rails will throw exception about
missing helper.
# app/helpers/my_helper.rb
require 'missing'
module MyHelper
end
And when we try do load helper
class ApplicationController
helper :my
end
Rails will throw exception. This is wrong because there is a helper
file.
Missing helper file helpers/my_helper.rb
Now when helper try to require non-existed file rails will throw proper
exception.
No such file to load -- missing
We don't actually need a rails.png in the AP fixtures, the tests
that use it don't actually try to load the file.
We also don't need to get rid of it with the dummy reset either.
Finally, it's not needed in the sample application that's included
with the Rails Guides.
previously when a partial was placed inside a directory
(eg. '/dir/_partial'), `assert_template` did not replace
the '_' prefix when looking through rendered tempaltes,
which resulted in an error.
I modified it to replace both, the leading '_' and the last '_'
after a '/'.
Previously rendering a partial without giving :object or :collection
would generate a local variable with the partial name by default.
This was noticed due to warnings in Ruby 2.0 of not used variables,
which turned out to be the generation of not used variables inside
partials that do not contain objects related to them.
This add support for sending an explicit opt-out of the "Russian-doll"
cache digest feature on a case-by-case basis. This is useful when cache-
expiration needs to be performed manually and it would be otherwise
difficult to know the exact name of a digested cache key.
More information: https://github.com/rails/cache_digests/pull/16
Given Im rendering an template `/layout/hello.html.erb`, assert_template was
passing with any string that matches. This behavior allowed false passing like:
assert_template "layout"
assert_template "out/hello"
Now the passing possibilities are:
assert_template "layout/hello"
assert_template "hello"
fixing assert_template bug when template matches expected, but not ends with
Cherry Pick Merge: Fixes issue #3849 assert_template false positive
taking redundant test off
prevening incorrect assert_template when rendering with repeated names in path
updating CHANGELOG with bugfix: assert_template false passing
