[Koha-bugs] [Bug 23626] Add a system preference to limit the number of rows of data used when charting or exporting report results

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23626

--- Comment #41 from sandboxes at biblibre.com <sandboxes at biblibre.com> ---
Created attachment 93723
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https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=93723&action=edit
Bug 23626: [alternate] Only fetch full chart data if requested

This patchset prevents the full return of report data unless explicitly
requested by the user for charting purposes
Additionally the user is warned if requesting more than 1000 rows of data

To test:
 1 - Create a report that returns over 1000 rows of data
 2 - Run the report
 3 - Note you have two buttons now 'Chart data' and 'Fetch all data for chart'
 4 - Click chart data
 5 - Note the note that you are only charting visible data
 6 - Create the chart and confirm it works
 7 - Close the chart
 8 - Click 'Fetch all data'
 9 - Note the confirm window
10 - Click 'cancel', note there is no change
11 - Repeat and click ok
12 - Fetch all data button is gone
13 - Page to next data, note fetch all does not return
14 - Click 'Chart data'
15 - Note you now have checkbox option to use all data in report
16 - Click it
17 - Create chart
18 - Confirm it works as expected

Signed-off-by: Séverine QUEUNE <severine.queune at bulac.fr>
Signed-off-by: Séverine QUEUNE <severine.queune at bulac.fr>

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