Fatal error: Call to a member function getFirstRow() on 1.8.1

Support & Bugs
1

hi,

after updating from 1.8 to 1.8.1 (both auto-update and fresh install) the dashboard shows the following error message where once was the overview graph (Übersicht mit Graph in german):

Fatal error: Call to a member function getFirstRow() on a non-object in /www/htdocs/w00ebc43/public_html/piwik/plugins/VisitsSummary/Controller.php on line 115

best regards,
Oliver

2

Thanks fo rthe report. do you get the erorr for all dates, all websites? or just some dates / some websites?

3

hi matt,

thanks for your reply. I just updated another site to 1.8.1 and this one doesn’t show the error. the main site however shows it for all kinds of date.

best regards,
Oliver

4

For what it’s worth, I am getting a similar error when trying to fix 301 Moved Permanently by adjusting the method declaration (making it public and using $table parameter) and then using the $table parameter instead of $this->table.

5

For me it helps to remove that widget and add it again. Now it works again.

6

[quote=fkrauthan]
For it helps to remove that widget and add it again. Now it works again.[/quote]
Same thing here. Removing and re-adding solved the problem. Thank you.

best regards,
Oliver

7

OK this is probably the same issue as the Time report showing only 10 reports.

please try to remove and add widget again and it should fix it

8

Removing and adding widget solves problem. But only for a short time, until user selects one column(metrics) for graph. For example (avg_time_on_site).

  1. Then calling API VisitsSummary.get results in table with single column. avg_time_on_site
  2. After that API\ResponseBuilder collapses it according to

$columns = $dataTable->getFirstRow()->getColumns();
				if(count($columns) == 1)
				{
					$values = array_values($columns);
					return $values[0];
				}
  1. The result is non-object and have no getFirstRow() function

I solved it adding some extra columns to visits summary to be present all the time:


fil: plugins/VisitsSummary/API.php line 62
$columns = array_merge($columns, $tempColumns, array('nb_visits', 'nb_uniq_visitors'));

But it may cause some bugs I believe. So if this bug explanation makes sense - please tell how to fix that correct.

9

Hi,

I had the same bug. I’ve removed/added the widget and the bug is gone for now. Please clean fix for a future version :slight_smile: I’m now on Piwik 1.9

10

Thanks for the report. I added a comment in the ticket: getUsersAccessFromSite has a different behaviour if only one member · Issue #3349 · matomo-org/matomo · GitHub