How to calculate a new date from another one ?

What's the goal ?

It is useful to do calculations on dates if you want to automatically calculate the date of a future intervention from the data filled in by your operator. You will be able to create a formula in a Date widget.

So what is this functionality ?

You can add and / or subtract days, months or years to a date.

You can then take the value of a first date, then add days, months or years.

The formulas to insert in your date widget will be:

• Days: ## tag_date ## + days (Number of days desired)
• Month: ## tag_date ## + months (Number of months desired)
• Years: ## tag_date ## + years (Number of years desired)

In practice, how to make calculations on dates ?

Context: Imagine a company that performs interventions on escalators. After a first intervention, a second checking intervention is systematically planned. This second intervention will always take place 11 days after the first.

1. Drag and drop a first Date widget into your form.

2. Name this widget date of intervention. Tick the current date option.

3. Drag and drop a second Date widget. Name the "Verification maintenance".

4. In the options, click on "formula".

5. Copy and paste the tag of the first date widget

6. Add a "+", then the word "days" and finally "(11)". We therefore ask to add 11 days.

7. Publish your form and take the test on the mobile application.