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host id as alias function #1913

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Nov 27, 2024
Merged

host id as alias function #1913

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5 changes: 3 additions & 2 deletions docs/sources/reference/functions.md
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Original file line number Diff line number Diff line change
Expand Up @@ -337,6 +337,7 @@ Following template variables available for using in `setAlias()` and `replaceAli
- `$__zbx_item`, `$__zbx_item_name` - item name
- `$__zbx_item_key` - item key
- `$__zbx_host_name` - visible name of the host
- `$__zbx_host_id` - id of the host
- `$__zbx_host` - technical name of the host

Examples:
Expand Down Expand Up @@ -400,9 +401,9 @@ For more details see [String.prototype.replace()](https://developer.mozilla.org/
**NOTE:** Other transforms in Grafana Dashboard, like ["Join by label"](https://grafana.com/docs/grafana/latest/panels-visualizations/query-transform-data/transform-data/#join-by-labels) will overwrite the alias functions.
This will happen because the Grafana Dashboard transforms will be applied on the raw data returned by a query.
If such issues arise, you can always use other Dashboard transforms, like:
* [Rename by regex](https://grafana.com/docs/grafana/latest/panels-visualizations/query-transform-data/transform-data/#rename-by-regex) for fields names
* [Value mappings > Regex ](https://grafana.com/docs/grafana/latest/panels-visualizations/configure-value-mappings/#regex) for cell values

- [Rename by regex](https://grafana.com/docs/grafana/latest/panels-visualizations/query-transform-data/transform-data/#rename-by-regex) for fields names
- [Value mappings > Regex ](https://grafana.com/docs/grafana/latest/panels-visualizations/configure-value-mappings/#regex) for cell values

Examples:

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1 change: 1 addition & 0 deletions pkg/datasource/response_handler.go
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Expand Up @@ -94,6 +94,7 @@ func seriesToDataFrame(series *timeseries.TimeSeriesData, valuemaps []zabbix.Val

if len(item.Hosts) > 0 {
scopedVars["__zbx_host"] = ScopedVar{Value: item.Hosts[0].Name}
scopedVars["__zbx_host_id"] = ScopedVar{Value: item.Hosts[0].ID}
scopedVars["__zbx_host_name"] = ScopedVar{Value: item.Hosts[0].Name}
valueField.Labels["host"] = item.Hosts[0].Name
}
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1 change: 1 addition & 0 deletions src/datasource/responseHandler.ts
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Expand Up @@ -59,6 +59,7 @@ function convertHistory(history, items, addHostName, convertPointCallback) {
const host = _.find(hosts, { hostid: item.hostid });
scopedVars['__zbx_host'] = { value: host.host };
scopedVars['__zbx_host_name'] = { value: host.name };
scopedVars['__zbx_host_id'] = { value: host.id };

// Only add host when multiple hosts selected
if (_.keys(hosts).length > 1 && addHostName) {
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