Yacht Club Reservation System Adds Conflict Detection with ECA Module
John Locke of Freelock explains a conflict detection system for reservation forms as part of the Advent 2024 series, "24 Days of Automations." The system allows a Yacht Club client’s members to reserve one of three workslips for up to three days while preventing double bookings. It uses Drupal's core taxonomy, content types, views, and the Events, Conditions, and Actions (ECA) module to validate reservation requests during the presave event.
The system checks that bookings are within the allowed time frame and verifies for conflicts by passing the selected date range and workslip into a view with contextual filters. If an overlapping reservation exists for another user, it triggers a validation error, alerting the member that the slip is unavailable. This approach provides an efficient, automated method to manage reservations and prevent scheduling conflicts.
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