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When calling to CustomVariables.getCustomVariablesValuesFromNameId the call fails with a Fatal error that says:
Fatal error: Call to undefined method Piwik_DataTable_Array::deleteColumn() in C:\inetpub\wwwroot\piwik\plugins\CustomVariables\API.php on line 87
The URL I was using to call was:
In looking at the code it looks like the problem is that deleteColumn is trying to be used to removing the pricing column but the object is not a dataTable and instead is a filtered view of the table.
Workaround (kind of) is to include the &_leavePriceViewedColumn=true parameter so that the price column gets included and the problematic code gets skipped.
(In ) Fixes #2844
Thanks for the report