[FrameworkBundle] Generate the class cache when warming up the cache
Fixed detection of an active session
merged branch jalliot/load-class-cache (PR #4542)

Commits
-------

f09789b [FrameworkBundle] Generate the class cache when warming up the cache

Discussion
----------

[FrameworkBundle] Generate the class cache when warming up the cache

Bug fix: no
Feature addition: yes
Backwards compatibility break: no
Symfony2 tests pass: [![Build Status](https://secure.travis-ci.org/jalliot/symfony.png?branch=load-class-cache)](http://travis-ci.org/jalliot/symfony)
Fixes the following tickets: -
Todo: -

With this PR, the commands `cache:clear` (if `--no-warmup` hasn't been specified) and `cache:warmup` generate the class cache. Now the first page load after clearing the cache does not take over one second anymore :)
Of course, if someone does not want to use the class cache for whatever reason, he can always remove the `$kernel->loadClassCache()` in his front controller and the cache will just be ignored...

On a side note, can someone explain why [SensioDistributionBundle does not warmup the cache in the Composer post-install script](https://github.com/sensio/SensioDistributionBundle/blob/master/Composer/ScriptHandler.php#L48)?

---------------------------------------------------------------------------

by travisbot at 2012-06-10T05:18:30Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1579114) (merged baecbaee into 6266b72d).

---------------------------------------------------------------------------

by travisbot at 2012-06-10T05:24:48Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1579154) (merged f09789b1 into 6266b72d).

---------------------------------------------------------------------------

by jalliot at 2012-06-28T23:18:54Z

@fabpot ping
merged branch dlsniper/session-start-fix (PR #4541)

Commits
-------

f72ba0a Fixed detection of an active session

Discussion
----------

[WIP][HttpFoundation][Session] Fixed detection of an active session

Bug fix: yes
Feature addition: no
Backwards compatibility break: not sure
Symfony2 tests pass: no
Fixes the following tickets: #4529
Todo: Fix failing tests
License of the code: MIT
Documentation PR: ~

This fixes the problem when the session variable inside $request now has always data in it as it's now more powerful but this introduces the problem that the old way of detecting if a session is started or not doesn't work anymore.

---------------------------------------------------------------------------

by travisbot at 2012-06-09T21:53:17Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1578839) (merged 9ae13e12 into 6266b72d).

---------------------------------------------------------------------------

by drak at 2012-06-10T01:57:59Z

Sessions should be started implicitly. The SF auto_start config parameter controls the session listener to start the session.

---------------------------------------------------------------------------

by dlsniper at 2012-06-11T06:46:02Z

So this patch is correct then and I should continue the work on it?

---------------------------------------------------------------------------

by drak at 2012-06-11T07:51:39Z

@dlsniper - no it's not correct.  The session should not be auto-started like this, @fabpot and I recently discussed it.

---------------------------------------------------------------------------

by dlsniper at 2012-06-11T07:52:55Z

@Drak, ok I'll remove the patch for auto_start then but the fix for start would still stand, right?

---------------------------------------------------------------------------

by drak at 2012-06-12T18:40:35Z

@dlsniper - I have no objection to the rest of the PR except for the autostart stuff.  I've annotated for clarity :)

---------------------------------------------------------------------------

by travisbot at 2012-06-12T19:51:12Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1604158) (merged 3499980e into 37550d23).

---------------------------------------------------------------------------

by travisbot at 2012-06-12T19:52:00Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1604166) (merged dcc73071 into 37550d23).

---------------------------------------------------------------------------

by dlsniper at 2012-06-12T19:56:51Z

Seems Travis doesn't like the squashing of commits that I've did but the PR does pass the normal tests.
@drak is this good for merging now?

Thanks :)

---------------------------------------------------------------------------

by dlsniper at 2012-06-13T09:05:09Z

@fabpot this can be merged safely, I've just applied the patch on my production application and the patch is ok, it's just travis failing.

Thanks

---------------------------------------------------------------------------

by travisbot at 2012-06-13T09:23:46Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1608735) (merged 1a6eabd2 into 37550d23).

---------------------------------------------------------------------------

by travisbot at 2012-06-13T09:28:26Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1608758) (merged 4e3a93c8 into 37550d23).

---------------------------------------------------------------------------

by dlsniper at 2012-06-13T09:29:28Z

I've noticed that this is failing, I'll fix it later on today.

---------------------------------------------------------------------------

by travisbot at 2012-06-13T15:14:01Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1611541) (merged 5504c4b7 into 37550d23).

---------------------------------------------------------------------------

by drak at 2012-06-13T15:23:47Z

It's possible that other tests are failing not related to this PR. Run the tests on the current master, and try rebasing your branch to the current master also.

---------------------------------------------------------------------------

by dlsniper at 2012-06-13T15:44:22Z

I've just reminded why this is failing on builds, I can't do them locally because of this:
```
Installing dev dependencies
Your requirements could not be solved to an installable set of packages.

        Problems:
                - Problem caused by:
                        - Installation request for doctrine/orm [>= 2.2.0.0, < 2.4.0.0-dev]: Satisfiable by [doctrine/orm-2.2.2, doctrine/orm-2.2.1, doctrine/orm-2.2.0, doctrine/orm-2.2.x-dev, doctrine/orm-2.3.x-dev].
```

I'll try and install this somehow and see what's wrong with it.

---------------------------------------------------------------------------

by mvrhov at 2012-06-13T18:08:58Z

@dlsniper: as @stof said to me this should be resolved in latest versions of composer, but it seems that is not. The problem is that composer cannot figure out that you are on dev-master if you try to instal dev. dependencies on feature branch. Take a look at the .travis.yml file on how to do a proper dev vendors install.
cc @Seldaek

---------------------------------------------------------------------------

by dlsniper at 2012-06-13T23:08:53Z

@mvrhov Thanks for pointing this out.

@drak I still got two tests not passing but I'm not sure how to fix them as adding $session->start() will either fail with the message that the session has already been started, the headers_sent() call which returns true. Any help with them will be greatly appreciated. Thanks!

Here is what the HttpKernel tests are returning:
```
There were 2 failures:

1) Symfony\Component\HttpKernel\Tests\EventListener\LocaleListenerTest::testDefaultLocaleWithSession
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'es'
+'fr'

/var/www/symfony-orig/src/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php:51

2) Symfony\Component\HttpKernel\Tests\EventListener\LocaleListenerTest::testLocaleFromRequestAttribute
Expectation failed for method name is equal to <string:set> when invoked 1 time(s).
Method was expected to be called 1 times, actually called 0 times.

FAILURES!
Tests: 263, Assertions: 1025, Failures: 2, Skipped: 10.
```

---------------------------------------------------------------------------

by travisbot at 2012-06-13T23:42:59Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1614883) (merged 1004b7c0 into c07e9163).

---------------------------------------------------------------------------

by travisbot at 2012-06-13T23:53:06Z

This pull request [fails](http://travis-ci.org/symfony/symfony/builds/1614897) (merged f72ba0a2 into c07e9163).

---------------------------------------------------------------------------

by dlsniper at 2012-06-16T20:14:41Z

@stof / @vicb Hi, do either of you think that you can either point me out to the right direction for fixing this either ping someone else for home help as @drak doesn't seem available for this and at the moment I'm pretty much clueless in what direction I should take this fix.

Thanks!

---------------------------------------------------------------------------

by dlsniper at 2012-06-19T14:16:29Z

ping @fabpot Can you please provide some input on this one as I'm a bit stuck and seems noone else is available.

---------------------------------------------------------------------------

by drak at 2012-06-20T10:24:43Z

fyi - I'll be able to look again in a few days

---------------------------------------------------------------------------

by fabpot at 2012-07-01T07:53:28Z

I'm +1 to add the `isStarted()` method, but -1 for the change of `Request::hasSession`.

---------------------------------------------------------------------------

by drak at 2012-07-01T09:06:15Z

@fabpot, I agree. `hasSession()` should not be changed, it's semantically incorrect to make it return effectively "hasActiveSession".
fixed previous merge
[HttpKernel] fixed a test