tweets.tweet_id should be either a string or a long int

[nbudin]

Commit d00ed069609d9145f2af794a498e6e1a67bef1b5 seems to have removed the migration that converted tweet_id to a string. Unfortunately, at least on MySQL, this results in all tweet_ids overflowing the field.

This makes it impossible to vote on tweets (for example), because all Tweet records end up with the same tweet_id and thus fail validation.

[jbr]

Yikes. I guess I've been merging a bit optimistically. Reverting; it definitely needs to be a string.

[nbudin]

There is some other stuff in that commit that looks useful, though - a geotag parser, apparently. I'm not sure whether or not it works. Sam can probably provide more information about it if he can be reached.

[jbr]

Re-added in a9d9305aeba1656a908fb1e6e54b00cc46682915

[nbudin]

Looks good, thanks!