[MIGRATION] Prepare schema migration table

[hschink]

Implements ticket 1992

[apfelfabrik]

The confirmation dialog is a good idea, but only if the shell is interactive. Rake tasks tend to be executed in deployment scripts, especially those that are built around migrations. So I would suggest one of the following:

• remove the confirmations or
• check whether the shell is interactive [1].

I believe @cratz is with me on this one :-)

[1] http://stackoverflow.com/questions/3384982/how-can-i-determine-if-my-process-is-being-run-interactively

[apfelfabrik]

There are other issues here. Some of the rake tasks seem to have dependencies to migrations that couldn't be run before others of the rake tasks were executed. I am commenting ticket 1992.

[apfelfabrik]

One more thing: migrations:documents:delete and migrations:attachments:delete_from_projects_and_versions both state they'd be deleting all documents. Only one of those statements can be true, I suppose.

[hschink]

@apfelfabrik: Documents and attachments are two different things, thus, only one rake task is actually stating it is deleting documents. The other one deletes attachments (from versions and projects).

[apfelfabrik]

I have restarted the failed travis build.