[tor-bugs] #25264 [Metrics/Website]: Decide what graph to display when there's no data to graph

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#25264: Decide what graph to display when there's no data to graph
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 Reporter:  karsten          |          Owner:  iwakeh
     Type:  enhancement      |         Status:  needs_review
 Priority:  High             |      Milestone:
Component:  Metrics/Website  |        Version:
 Severity:  Normal           |     Resolution:
 Keywords:                   |  Actual Points:
Parent ID:                   |         Points:
 Reviewer:                   |        Sponsor:
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Changes (by iwakeh):

 * status:  accepted => needs_review


Comment:

 Please review [https://gitweb.torproject.org/user/iwakeh/metrics-
 web.git/commit/?h=missing-csv-data this patch commit].

 That was a strange error situation.  The call list created in java wasn't
 proper, but worked for graphs and failed for csvs.  That's why there was
 only no-data in csv files, because there was an R error.
 Now, the behavior for graphs is the same as before, but csv files always
 contain there column headers, i.e., the no-data message will not appear.
 It only shows up when there is an error.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25264#comment:26>
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