Extract fixture loading command to separate bundle

[alcaeus]

To better separate concerns and keep track of dependencies, we should extract the LoadDataFixturesDoctrineODMCommand to a separate bundle and release it as a separate package (comparable to DoctrineBundle and DoctrineFixturesBundle).

[malarzm]

While reason is plausible, I'm not sure extracting a single command to a bundle is the best course of action.

Offhand, https://github.com/doctrine/DoctrineFixturesBundle is mentioning ODM in the readme, does that bundle support ODM already?

[jwage]

Yes, I believe so.

[alcaeus]

At the moment, the bundle does not support ODM - I'll check if it can easily be changed to do so. The reason I want to extract it is to have a purpose-built bundle that integrates mongodb-odm and data-fixtures. At this stage, you see the command but can't run it unless you know that you have to require data-fixtures as well.

[stale]

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