BUG: database searches out of project scope

[xxxajk]

There appears to be no way to group or isolate projects at all causing queries to pull from unrelated databases.

[evander-wang]

There appears to be no way to group or isolate projects at all causing queries to pull from unrelated databases.

Waiting to merge:

#287

[vitali87]

@xxxajk and @wjcgithub the PR is merged. Please give it a try again