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Sample app

Looping with Actions (MV)

How to loop through a list, and create child records for each item in that list

Industry: n/a
The purpose of this app is to demonstrate how you can loop through lists without the need of an iterator - or some other way of manually keeping track of what needs to be done, or the count of how many are left.
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How we built this app

This app features 4 (relevant) tables: - Products (to serve as a basic supporting data table) - Orders (the parent) - Order_Details (the child) - Order_Detail_Fullfillment (the grandchild) Inside the order, you select a number of products - it is this column that creates the list of items that need to be created. Inside the order table, there are additional Virtual Columns that extract from the [Related Order_Details] column a list of the products that have been created; we then take the original list of items and subtract this list of items created, giving us a list of what's left and still needs to be created. Actions then run a loop over this list of items, creating one child record for each item in that list. Additionally, this app also creates associated grandchild records after the loop has been completed. ~~|~~ This app also demonstrates how to maintain the list of child records in the opposite direction: when you remove something from the list, there is a Ref action that runs an Auto-delete action over the records that match the product(s) you removed from the list.
This is a preview of the data sets used in the app.

Data

This is a high-level model of both the data entities and the UI elements in the app.
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