Use dbAlias to generate where clause for date field in activity report

[pradpnayak]

Overview

Use db alias when generating where clause for date field over field name else it will result in "Column 'activity_date_time' in where clause is ambiguous" error if we want to join activity table again to the report using hook.

Before

WHERE ( activity_date_time >= 20200301000000 ) AND ( activity_date_time <= 20200307235959 )

After

WHERE ( activity_civireport.activity_date_time >= 20200301000000 ) AND ( activity_civireport.activity_date_time <= 20200307235959 )

[civibot]

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[seamuslee001]

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[pradpnayak]

Thanks @seamuslee001