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abakcuh
Regular Visitor

Dataverse Joins

In my model driven app I have three tables.

1. Employee table with many to many relationship with the specification table.

2. Specification table with a many to many relationship with a department table.

3. Department table with a many to many relationship with the specification table.

 

The idea is an Employee can be part of many departments and these departments have many specifications.  In the application so far I have added a test user.  I have assigned them to a single department.  I have also created a department and assigned a specification. What i am looking to happen is the specification is assigned to the user based on them being part of the department.  I don't want to have to assign each and every specification to a user manually but based on the department.  Is this possible? 

4 REPLIES 4
joaodsantos
Resolver IV
Resolver IV

Hi,

If I got that right you have a link between employee and specification but I'm guessing also a many to one from employee to department? That's how you set the employee's department?

And just to confirm, any specification you add to the department should be copied to the many to many from the employee to specification?

I feel like you're duplicating data? You'll have two places with the same data.

You could build a query that would retrieve all specifications linked to the employees department. Or show a quick view form in the employee to display the department's specifications.

But I don't know your requirements so I could be missing a key detail!

 

If needed, you can write a bit of code and create a plug-in that triggers on associate message and copies the values from one relationship to the other. Or use this trick with webhooks to trigger a flow and do the same thing.

 

Hope this helps

I think a query with a quick view should be okay.  So would this query show all specs even if the employee belongs to many depts?  Sorry a newbie with relational data and model driven apps.  How do you create the query?

joaodsantos
Resolver IV
Resolver IV

ah wait, I somehow missed the part where you said an employee can have multiple departments. If it was just one department quick view form would be the way to go but with many to many that won't work.

 

What I'm thinking is, if you need to extract this data using the API or something like that, a fetchXml that brings all specifications linked to departments and then from departments linked to contacts that'll bring all the data you need.

 

But if you need this presented in a form within the application that might be trickier. My pro dev side is saying to just create a View similar to the fetchXml I described, that brings Specifications and the linked Departments, and then you add a bit of JavaScript to filter that view based on the current Contact. Something link this: https://medium.com/@meelamri23/dynamically-set-fetchxml-to-subgrid-on-dynamics-365-v9-uci-a4a531200e...

This is not supported by Microsoft, but should give you the result you need. Although I can understand if this is a bit to "cody".

 

Only other thing I can think of is going via the webhook + power automate route and copy the data like you were saying from one relationship to another.

 

Sorry I can't help more, hopefully someone can jump in and give some other examples.

Ah that is what i had to do in the existing IBM Lotus Xpage application using SSJS.  Didn't know what capabilities I had to script this in a model driven app.  I was close to using a Canvas app where I could do my own lookups.  Thank you for your help.  I will look at the link you provided and dust off my js (it's been a few years) 🙂 

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