I am developing a dashboard to analyze users logs from an email application. The dashboard has Time (Time Picker) and Email (Drop-down List) as inputs. Users are able to select time range and a email in interest to drill down the different panels in the dashboard.
The email drop-down list consists of All (*), email1, email2, ..., etc). The token for this drop-down list is $email$.
[1]: /storage/temp/129184-untitled.png
When the user selects All, I would like some panels to show a message like "Further drill-down required". The reason is some panels are irrelevant when all emails are selected.
I know that I have to edit the various panels' search string use eval if(x,y,z) and the token $email$. However, I have no clue on how to start. One problem is, I am unable to use eval function at the start of a search string.
I appreciate help from you guys. Thank you in advance. :D
Cheers!
- Nick
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