prior to this fix Grafana didnt delete meta data
about the provisioned dashboard in `dashboard_provisioning`
which means that the dashboard wasn't inserted into
Grafana again if the folder was delete within Grafana.
closes#13280
See,
$ gometalinter --vendor --deadline 10m --disable-all --enable=megacheck ./...
pkg/services/sqlstore/user_auth_test.go:28:18⚠️ this result of append is never used, except maybe in other appends (SA4010) (megacheck)
I removed some code, and commented out other one.
See,
$ gometalinter --vendor --disable-all --disable=gotype --enable=megacheck --deadline 6m ./... | grep unused
pkg/api/avatar/avatar.go💯26⚠️ func (*CacheServer).mustInt is unused (U1000) (megacheck)
pkg/api/folder_test.go:136:6⚠️ func callGetFolderByUID is unused (U1000) (megacheck)
pkg/api/folder_test.go:141:6⚠️ func callDeleteFolder is unused (U1000) (megacheck)
pkg/api/live/hub.go:40:15⚠️ func (*hub).removeConnection is unused (U1000) (megacheck)
pkg/components/imguploader/azureblobuploader.go:130:5⚠️ var client is unused (U1000) (megacheck)
pkg/middleware/middleware_test.go:438:28⚠️ func (*scenarioContext).withInvalidApiKey is unused (U1000) (megacheck)
pkg/services/alerting/ticker.go:40:18⚠️ func (*Ticker).updateOffset is unused (U1000) (megacheck)
pkg/services/notifications/notifications_test.go:12:6⚠️ type testTriggeredAlert is unused (U1000) (megacheck)
pkg/services/sqlstore/dashboard_service_integration_test.go:935:6⚠️ type scenarioContext is unused (U1000) (megacheck)
pkg/services/sqlstore/dashboard_service_integration_test.go:939:6⚠️ type scenarioFunc is unused (U1000) (megacheck)
pkg/services/sqlstore/dashboard_service_integration_test.go:941:6⚠️ func dashboardGuardianScenario is unused (U1000) (megacheck)
pkg/services/sqlstore/transactions_test.go:13:6⚠️ type testQuery is unused (U1000) (megacheck)
If notification state is pending and last update of state was made
less than a minute ago. In the case of a grafana instance is shut down/crashes
between setting pending state and before sending the notification/marks as complete
this logic should allow the notification to be sent after some time instead of
being left in an inconsistent state where no notifications are being sent.
