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using patch to insert record with 1:N relationship

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Posted on by isaac_sampaio

Hello, I have the following problem. I have two lists in sharepoint, one called tbUnit and another called tbStock.
In tbStock I have the following fields:
ID: autoincrement
Size: Text
Quantity: Number
UniformId: Number
Unit: Lookup (lookup on the ID field of the tbUnit table)
Unit:Name: "Unit Name"

In tbUnit I have the following fields:

ID: autoincrement
Name: Text

I'm trying to insert a record in tbStock with the following command:

Patch(tbEstoque;
 Defaults(tbEstoque);
 {
 Tamanho: txtTamanho.Selected.Nome;
 Quantidade: Value(txtQuantidade.Text);
 IdUniforme: Value(txtIdUniforme.Text);
 Unidade: {
 Value: txtUnidade.Selected.Nome;
 Id:LookUp( 
 tbUnidades; 
 Nome=txtUnidade.Selected.Nome
 ).ID
 }
 }
)

The above command is not generating an error, but the inserted record has a blank value in the field Unit of tbStock. Could you guide me why this error is occurring?

Thanks!

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WarrenBelz 156,297 Most Valuable Professional on at

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Hi @isaac_sampaio ,

In your screenshot, I can only see a number in Unidade - if the Unidade:Nome beside it is a secondary lookup (please post a screenshot of your Lookup field setting), you cannot patch to them, in fact the whole Lookup column structure is generally unnecessary with Power Apps and will only cause you unwanted grief.

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isaac_sampaio 7 on at

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Hi, @WarrenBelz, Below is the configuration image of the Unit field (lookup), as requested.

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WarrenBelz 156,297 Most Valuable Professional on at

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@isaac_sampaio ,

I suspected that - you only need to post the ID - you cannot post anything to the secondary lookup. Also I would not recommend that structure. If you must use lookup columns for something direct in SharePoint (I never have and most likely never will use them), display the actual Name column and then lookup the ID the way you have in your post.

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