Adding Level adapter support for Sublevel and Multilevel

mshick commented 10 years ago

I needed support for both these for a current project. Fairly straightforward implementation using Net.connect().

Summary of changes:

Update local module requires to support LevelUp and Multilevel as well as Level
Update adapter init to branch logic for Multilevel vs. plain Level
Update config to support a sublevel name, and handle in init (will attempt a local require for level-sublevel, and throw an error if it doesn't exist).
Update config to disable / modify keyPrefix (to avoid duplicate prefixes when using sublevels)
Add connect/disconnect methods which I really uncertain of. Docs indicate they are just for getting connection feedback, but the mongo adapter seems to use them for acquiring the db connection itself. I followed the docs.

mde commented 10 years ago

Adapter adapters, this is great! Excellent work, thanks for implementing this. I'm going to get the tests passing then merge this.

mshick commented 10 years ago

Thanks! Adapter adapters sounds scary to me, but hopefully this is a special case...

mde commented 10 years ago

Exactly -- "adapters all the way down" doesn't sound optimal. The tests were breaking due to a recent Jake update. Should be merged shortly. :)

geddy / model