This post is part of the SAP Build Community Challenge (April 2023)
This week’s challenge involves formulas – a key feature of SAP Build Apps. Formulas are used in bindings of components, and enable you to manipulate data before it is displayed in a component or before it is sent to a data source.
Formulas are created in the formula editor, which provides some tools for making writing formulas easier:
Here are some learning materials about formulas:
We will give you an app that looks like this (I like cats).
To set up the challenge, do the following:
You should now have the skeleton project.
Inside the app, we have already created a page variable called StartValue that contains the starting data that we want you to transform.
When you are ready, on the UI Canvas, select the Transform button, open the logic canvas, then select the Set page variable flow function, and finally go to set the formula for Assigned Value on the right (which currently returns an empty list).
This is what you need to do:
Your screenshot should look something like this but without the blur (I need to see the names and averages) and with your name:
Good luck ... and have fun!!
You have to do 3 things in the formula (aggregate/group, sort, round), so find a function that does each one. Use the wonderful editor features that document the available functions.
For example, for aggregating, go to the List area, and then find a function that aggregates (in this case, GROUP). You'll see all the documentation for it on the right, plus a little playground inside the documentation for testing it. Pretty cool!