Transaction support

[Lisio]

Q	A
Is bugfix?	no
New feature?	yes
Breaks BC?	no
Tests pass?	n/a
Fixed issues

[Lisio]

Something wrong with the tests, current master also fails.

[yii-bot]

Thank you for putting effort in the improvement of the Yii framework. We have reviewed your pull request.

In order for the framework and your solution to remain stable in the future, we have a unit test requirement in place. Therefore we can only accept your pull request if it is covered by unit tests.

Could you add these please?

Thanks!

P.S. If you have any questions about the creation of unit tests? Don't hesitate to ask for support. More information about unit tests

This is an automated comment, triggered by adding the label pr:request for unit tests.

[Lisio]

Do we need to use version 1.1.8 of mongodb extension for php 5.5? Session parameter is only compatible with 1.4.0 which is compatible with php 5.5.

[samdark]

No, we don't. Likely using precise as OS would help. Let's check it...

[samdark]

But first, let's merge master into this branch...

[samdark]

@Lisio tests seems to fail on 5.4.

[Lisio]

Testing environment fails to install correct version of mongodb library

configure: error: not supported. Need a PHP version >= 5.6.0 (found 5.4.45)
ERROR: `/tmp/pear/install/mongodb/configure --with-php-config=/home/travis/.phpenv/versions/5.4/bin/php-config' failed
MongoDB PHP Extension version:
MongoDB support => enabled
MongoDB extension version => 1.2.6

[samdark]

Yeah :( Seems we need to do it manually:

• https://blog.theodo.com/2015/11/set-up-mongodb-on-a-travis-container-2/
• https://github.com/mongodb/pymodm/blob/master/.travis.yml