Gravity Forms
+ Multiple Dates Field

Day camps, holiday clubs, nursery sessions, day passes, volunteer rotas, catering days and equipment hire all ask the same question: which days? The Gravity Forms date field picks one date, so people end up adding five date fields, a checkbox list of dates that needs editing every week, or a text box where anything can be typed. The Gravity Forms Multiple Dates Field Premium Add-on adds one calendar where visitors click the days they want, as many as you allow.

You decide how many dates people must and may choose, the earliest and latest dates, the closed week days and holidays, and how many entries can choose the same day. Full days are greyed out, and every rule is checked again on your server when the form is sent. The number of chosen days works in calculations, so a price per day adds up on its own, and staff see how many people booked each date.

When the form is shown, the add-on works out today in your site's time zone, the earliest and latest dates, the closed days and, if you set places per date, which days are already full. The calendar greys those days out. Each click adds or removes a day, and the chosen days are kept as ISO dates in date order, so conditional logic and calculations always see the same value. When the form is sent, your server reads the dates again and checks every rule; with places per date it counts the entries that are not in the trash or spam under a short database lock, so two people sending at the same moment cannot both take the last place. The entry keeps the dates, and every screen and e-mail shows them in the format you chose.