Transactions in our code that might need to work against CockroachDB
need to be retried in the event of a retryable error. The transaction
helper functions in dbutil do that automatically. I am changing this
code to use those helpers instead.
I also fleshed out consoledb_test.go to do actual inserts and gets to
make sure things were working correctly.
Change-Id: I089bf4c776d15dc8578080e26760bd6dff4beec9
* rename pkg/linksharing to linksharing
* rename pkg/httpserver to linksharing/httpserver
* rename pkg/eestream to uplink/eestream
* rename pkg/stream to uplink/stream
* rename pkg/metainfo/kvmetainfo to uplink/metainfo/kvmetainfo
* rename pkg/auth/signing to pkg/signing
* rename pkg/storage to uplink/storage
* rename pkg/accounting to satellite/accounting
* rename pkg/audit to satellite/audit
* rename pkg/certdb to satellite/certdb
* rename pkg/discovery to satellite/discovery
* rename pkg/overlay to satellite/overlay
* rename pkg/datarepair to satellite/repair
* add dbx queries
* add migration file
* start service
* Add TotalReferredCountByUserId and availableCreditsByUserID
* implement UserCredits interface and UserCredit struct type
* add UserCredits into consoledb
* add setupData helper function
* add test for update
* update lock file
* fix lint error
* add invalidUserCredits tests
* rename method
* adds comments
* add checks for erros in setupData
* change update method to only execute one query per request
* rename vairable
* should return a signal from Update method if the charge is not fully complete
* changes for readability
* prevent sql injection
* rename
* improve readability
