Trends time period

[yurilaaziz]

I'm submitting a ...

• [ x ] Feature request

I am using grafana-Zabbix 3.3 and when the Trends is activated, It's impossible to Zoom in to get history before the trend period (7d by default)
I think it's better to add a feature that use trends only if the selected period is greater than a Trend Window.

I changed directly he dist/datasource-zabbix/datasource.js : 229,

            var useTrendsFrom = Math.ceil(dateMath.parse('now-' + this.trendsFrom) / 1000);
            var windowTrends = Math.abs(Math.ceil(dateMath.parse('now') / 1000) - useTrendsFrom);
            var useTrends = (Math.abs(timeTo - timeFrom ) > windowTrends) && this.trends;

More than that
it's better to have this feature by dashboard/Metric,
for example, Per Metric, enable Trend or history and choose the time period .

Thanks

[alexanderzobnin]

Yes, you're right, datasource should use trends only for range wider than trend period. I can add option like trend range, and allow to control trend usage more flexibly.

[yurilaaziz]

@alexanderzobnin Do you want to fix it and send a PR ?