Failing to switch from postgres to influx direct connection

[anthonysomerset]

Describe the bug
I have been using Postgres DB for Zabbix and the grafana plugin (works well) - we are migrating to InfluxDB for the longer term storage, when i attempt to switch the zabbix plugin datasource to use influx i get a failed to get metric error in the gui and existing dashboards can't read any data. the influx datasource on its own is indeed working and i can manually pull metrics out just fine. When we enabled Influx on a previous version of the plugin it worked

Expected behavior
The data source should save and test correctly and data should return in dashboard panels

Screenshots

Network data
Grafana Log:
t=2019-08-16T04:09:23+0000 lvl=eror msg="Metric request error" logger=context userId=2 orgId=1 [email protected] error="type assertion to string failed"

Software versions

Grafana	Zabbix	Grafana-Zabbix Plugin
6.3.3	4.2.5	3.10.4

[anthonysomerset]

I've done some debugging further - it would seem that the direct db connection is perhaps not being saved properly in the Database - once i manually updated the DB table (like i did for #731) it actually saved and worked

[alexanderzobnin]

Hi! Can you confirm this happens in 3.11 as well?

[anthonysomerset]

its happening to me still in most current release

doesn't matter if i am switching from Influx to postgres or the reverse - the json_data field in the grafana DB does not get updated properly

specifically dbConnectionDatasourceName does not get updated - the dbConnectionDatasourceId field does get updated though

[github-actions]

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