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ActionController::Base#template since it is no longer needed.
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warnings are in dependencies.
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* The approach is to compile <% %> into a method call that checks whether
the value returned from a block is a String. If it is, it concats to the buffer and
prints a deprecation warning.
* <%= %> uses exactly the same logic to compile the template, which first checks
to see whether it's compiling a block.
* This should have no impact on other uses of block in templates. For instance, in
<% [1,2,3].each do |i| %><%= i %><% end %>, the call to each returns an Array,
not a String, so the result is not concatenated
* In two cases (#capture and #cache), a String can be returned that should *never*
be concatenated. We have temporarily created a String subclass called NonConcattingString
which behaves (and is serialized) identically to String, but is not concatenated
by the code that handles deprecated <% %> block helpers. Once we remove support
for <% %> block helpers, we can remove NonConcattingString.
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controller (so plugins and/or controllers can overwrite just one method).
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find_template instead of find in views.
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add lazy_load_hooks.rb, which allows us to declare code that
should be run at some later time. For instance, this allows
us to defer requiring ActiveRecord::Base at boot time purely
to apply configuration. Instead, we register a hook that should
apply configuration once ActiveRecord::Base is loaded.
With these changes, brings down total boot time of a
new app to 300ms in production and 400ms in dev.
TODO: rename base_hook
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lookup.
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Instead, all Strings are always not html_safe?. Instead, you can get a SafeBuffer from a String by calling #html_safe, which will SafeBuffer.new(self).
* Additionally, instead of doing concat("</form>".html_safe), you can do
safe_concat("</form>"), which will skip both the flag set, and the flag
check.
* For the first pass, I converted virtually all #html_safe!s to #html_safe,
and the tests pass. A further optimization would be to try to use
#safe_concat as much as possible, reducing the performance impact if
we know up front that a String is safe.
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* A new module (ActiveSupport::Autoload) is provide that extends
autoloading with new behavior.
* All autoloads in modules that have extended ActiveSupport::Autoload
will be eagerly required in threadsafe environments
* Autoloads can optionally leave off the path if the path is the same
as full_constant_name.underscore
* It is possible to specify that a group of autoloads live under an
additional path. For instance, all of ActionDispatch's middlewares
are ActionDispatch::MiddlewareName, but they live under
"action_dispatch/middlewares/middleware_name"
* It is possible to specify that a group of autoloads are all found
at the same path. For instance, a number of exceptions might all
be declared there.
* One consequence of this is that testing-related constants are not
autoloaded. To get the testing helpers for a given component,
require "component_name/test_case". For instance, "action_controller/test_case".
* test_help.rb, which is automatically required by a Rails application's
test helper, requires the test_case.rb for all active components, so
this change will not be disruptive in existing or new applications.
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AbstractController and made ActionMailer use it.
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escaping.
This doesn't provide a way to turn off the escaping, but alternative template engine authors
can figure out what their default should be by calling this. Avoids a messy version + plugin check.
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By using config rather than hardcoded constants, we can evolve the
configuration system over time (we'd just need to update the config
method with more robust capabilities and all consumers would get
the capabilities with no code changes)
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#inspect and .name.
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This consists of:
* String#html_safe! a method to mark a string as 'safe'
* ActionView::SafeBuffer a string subclass which escapes anything unsafe which is concatenated to it
* Calls to String#html_safe! throughout the rails helpers
* a 'raw' helper which lets you concatenate trusted HTML from non-safety-aware sources (e.g. presantized strings in the DB)
* New ERB implementation based on erubis which uses a SafeBuffer instead of a String
Hat tip to Django for the inspiration.
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* request.formats is much simpler now
* For XHRs or Accept headers with a single item, we use the Accept header
* For other requests, we use params[:format] or fallback to HTML
* This is primarily to work around the fact that browsers provide completely
broken Accept headers, so we have to whitelist the few cases we can
specifically isolate and treat other requests as coming from the browser
* For APIs, we can support single-item Accept headers, which disambiguates
from the browsers
* Requests to an action that only has an XML template from the browser will
no longer find the template. This worked previously because most browsers
provide a catch-all */*, but this was mostly accidental behavior. If you
want to serve XML, either use the :xml format in links, or explicitly
specify the XML template: render "template.xml".
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* Call _evaluate_assigns_and_ivars at the two entry points so we don't have to
do a check at every render.
* Make template.render viable without having to go through a wrapper method
* Remove old TemplateHandler#render(template, local_assigns) path so we don't have
to set self.template every time we render a template.
* Move Template rescuing code to Template#render so it gets caught every time.
* Pull in some tests from Pratik that test render @object in ActionView
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flushing due to runtime Kernel#extend:
* The helper module adds a new _helper_serial property onto AbstractController subclasses
* When #helper is used to add helpers to a class, the serial number is updated
* An ActionView subclass is created and cached based on this serial number.
* That subclass includes the helper module from the controller
* Subsequent requests using the same controller with the same serial will result in
reusing that subclass, rather than being forced to take an action (like include
or extend) that will result in a global method cache flush on MRI and a flush
of the entire AV class' cache on JRuby.
* For now, this optimization is not applied to the RJS helpers, which results in
a global method cache flush in MRI and a flush of the JavaScriptGenerator class in
JRuby only when using RJS.
* Since the effects are limited to using RJS, and would only affect JavaScriptGenerator
in JRuby (as opposed to the entire view object), it seems worthwhile to apply this
now.
* This resulted in a significant performance improvement. I will have benchmarks
in the next day or two that show the performance impact of the last several
commits.
* There is a small chance this could break existing code (although I'm not sure how).
If that happens, please report it immediately.
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calls back into the controller for each attempt (this was done because these calls were adding up significantly in partial rendering and showing up on profiles)
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only in the current mime type.
* The old behavior was tested only as a side-effect of a different test--the original tests remain;
a new template in the XML mime was added.
* If you are relying on the current behavior and object to this change, please participate in
http://groups.google.com/group/rubyonrails-core/browse_thread/thread/6ef25f3c108389bd
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context
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era.
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