[Bug] Comparison stats removed on widgitized dashboard for 'week' period

[goochj03]

What happened?

Viewing the dashboard from the Widget example link for weekly periods, the comparison stats are not shown. Administration > Platform > Widgets

For example:

/index.php?module=Widgetize&action=iframe&moduleToWidgetize=Dashboard&actionToWidgetize=index&idSite=1&period=week&date=lastweek

If using /index.php?module=Widgetize&action=iframe&moduleToWidgetize=Dashboard&actionToWidgetize=index&idSite=1&period=week&date=-1week the comparions stats are shown but the calendar date shows an error.

What should happen?

The comparisons stats should be shown if the url is set to period=week&date=lastweek

How can this be reproduced?

Go to Administration > Platform > Widgets Click on the 'example' link and set the date period to period=week&date=lastweek

Last Week:

-1Week:

Matomo major version

Matomo 4

Matomo minor or patch Version

Matomo 4

PHP version

8.1

Server operating system

N/A

What browsers are you seeing the problem on?

No response

Computer operating system

N/A

Relevant log output

No response

Validations

• [X] Read our Contributing Guidelines.
• [X] Follow our Security Policy.
• [X] Check that there isn't already an issue that reports the same bug to avoid creating duplicates.
• [X] The provided steps to reproduce is a minimal reproducible of the Bug.

[mneudert]

Thanks for raising the issue @goochj03.

Several date handling specialities are in place that seem to trigger the difference in behaviour:

• lastweek does not satisfy the getLastDate detection due to not matching a regex. Changing the regex to /(last|previous)[0-9]+/ would restore the comparison values in your case, but I have not checked what could break with such a change.
• -1week does satisfy the detection, but the JavaScript can not handle this format. This results in exceptions displaying "Error" for the period selector and breaking the graph.

Might also need a look into how much of the strtotime keywords should be supported by both frontend and backend (e.g. 1 week ago as an alternative to last week).