CRM-21546: Implement unique opens filter for mailing opened report

[monishdeb]

Overview

This ticket is about adding Yes/No filter called 'Unique Opens' to mailing opened report to list out unique open mailings.

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• CRM-21546: Implement unique opens filter for mailing opened report

[monishdeb]

ping @lcdservices @colemanw

[monishdeb]

Jenkins test this please

[lcdservices]

@Monish this is not working. Here are the issues:

• when unique opens is selected, the group by statement has too many fields. specifically -- it groups by mailing_event_opened_civireport.id and mailing_event_opened_civireport.time_stamp -- both of which are not contact/email specific, and prevent unique rows (unique in terms of 1 open per contact; not in the mysql sense)
• if you remove those values from group by and also expose open date, we need to wrap open date with ANY_VALUE in the select statement -- or maybe MIN(), so we return the first timestamp for when the email was opened.

[seamuslee001]

@lcdservices just noting Brian that ANY_VALUE isn't really a proper solution given that MariaDB doesn't support ANY_VALUE

[lcdservices]

@seamuslee001 there are some utility functions that take that into consideration. But in this case, I actually think we want MIN() so we get the first time the email was opened.

[monishdeb]

@lcdservices @seamuslee001 I have updated the PR and this is the last commit 6bd27fc

Note that I have kept ANY_VALUE and this won't get added for MariaDB because of CRM_Utils_SQL::disableFullGroupByMode()

[lcdservices]

@monishdeb this is working. no group by errors and the report correctly groups by contact ID when the unique opens filter is selected.

[colemanw]

• (r-jira) Pass
• (r-test) Pass
• (r-code) Pass
• (r-doc) Pass
• (r-maint) Pass
• (r-run) Pass: Tested by @lcdservices
• (r-user) Pass: Fits normal report UI patterns.
• (r-tech) Pass: Standard report code.