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GraemeNZ
Advocate III
Advocate III

Stuck on getting started

Hi. I've been using SharePoint for a few years now, and have developed a few flows and canvas apps. Now I'm trying to understand model-driven apps and I'm stuck.

1. The situation is that we have 2 Dryers, each Dryer has 4 departments, and each department will have several tagged doors. We need to keep a record of the door tags, and when a tag is replaced we need to record information about the old number, the new number, who and why.

Paper form I'm hoping to automate into the app...

GraemeNZ_2-1666235456485.png

2. My hope is that I can set up a table for Dryer, a table for Department, a table for Tagged Doors. These 3 tables would be look-up only. Then a 4th table would be the Door Register. In the app I was hoping the user can click on Dryer to open the Departments in that dryer, then click on Department to find the Tagged Door location, then click on Tagged Door to open a form where they can enter data into the Door Register. (Essentially there would be a door register for each door, so we can track how often tags are broken, what for, and what was done.)

  • Can a model-driven app do this type of relationship?

3. I tried setting up my 4 tables, and found that I could only relate Dryer to Department. Is it possible to have more than 2 tables relate to each other?

 

4. I reformatted my Tagged Door table to include Dryer and Department in it directly, rather than having a relationship. Now my app only has 2 tables, but I still can't find the 'related tables'. So I deleted the app and recreated it so it only has the 2 tables in it. I still can't force these two tables to relate.

Now I've spent 2 days going around in circles. Can anyone please help me get started? Some snips follow:

GraemeNZ_0-1666234022928.png

GraemeNZ_1-1666235332395.png

 

Cheers, GraemeNZ

 

PS: Will I need to delete everything and start again from scratch, or can I change the relationships with my existing tables? 

1 ACCEPTED SOLUTION

Accepted Solutions
dpoggemann
Most Valuable Professional
Most Valuable Professional

Hi @GraemeNZ ,

 

Some information for you to review before we get together in a Teams meeting.

 

From your picture above, I think I would setup your model like this (but we can discuss):

  1. Dryer table - This table will contain a list of all the Dryers that you have.  
  2. Department Type table - This table till contain a list of the different types of departments that exist, in your situation it sounds like this table would have 4 entries.
  3. Department table - This table would be a child table of the Dryer table (parental relationship) so it would have a lookup column for the Dryer and should also have a lookup column for the Department Type.
  4. Door Type table - This assumes you have specific Door types that exist within the Department on the Dryer.  If that is not the case then this would not be required as a table
  5. Door table  - The Door table would be a child table to the Department (parental relationship).  The Door table should have a Lookup to the Department and a lookup to the Door Type table (if that is required).
  6. Door Tag table - This is the table you will track the door tags for each door. It will track historical tags including the tag numbers, date installed, reason for replacement, etc.  This is your true transactional table for replacing the tags.  This table should be a child of the Door table with the lookup column for Door.

With the model above, you will be able to do the following:

  • See listings of all your Dryers, Departments, Doors, Door Tags in views in your model app
  • On the Dryer form you can have a tab, or even a section with a subgrid, on the page for all Departments related to that Dryer and click through that Department to go to that specific Department page
  • On the Department form you can display a tab for the Doors (or a section with subgrid) to display the Doors related to the Department and click through to the Door specifically
  • On the Door page you can view all of the Door Tags in a tab or section and add new door tags to the subgrid with details on why the tag is added etc.

When we meet we can discuss this in detail but thought I would articulate above.  This appears to be a good fit for a model app based on what I know at this point.

 

Hope this helps. Please accept if answers your question or Like if helps in any way.
Thanks,
Drew

View solution in original post

8 REPLIES 8
rampprakash
Super User
Super User

Hi @GraemeNZ 

 

If the data is not huge then Scratch else you can remove the relationships

 

Please mark as Answer if it is helpful and provide Kudos

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Hi - thanks for your reply, but you only answered my post script. What about the main points I raised?

GraemeNZ
Advocate III
Advocate III

Should I be concerned that no one on this forum can help a noob start building their first model-driven app?

sossie07
Helper III
Helper III

Not very helpful but... I'm in the same boat Graeme, used sharepoint, canvas apps, flow, but I'm finding it very difficult to build an understanding of the fundamentals of Model-driven apps and dataverse.

Thanks @sossie07 . Every reply now keeps this post near the top of the list, where hopefully someone will be able to help us. 😁

GraemeNZ
Advocate III
Advocate III

@dpoggemann @EricRegnier @AhmedSalih - as the three top solution authors last month, can one of you please help? I first need to know if my Point 2 is even possible, but so far the only help I have received is no help at all, and that was from a super user who should be ashamed to have provided a throw-away comment like that.

dpoggemann
Most Valuable Professional
Most Valuable Professional

Hi @GraemeNZ ,

 

I am happy to jump on a call and review your situation and discuss options on how to address in a model-driven application.  We can determine what will work well, what would need some work-arounds and overall discuss the right strategy.  I think going back and forth here might be a lot of messages and a call would work best.  Hopefully this is ok with you.  Please contact me directly with a message and let's get it figured out! 😀

 

Hope this helps. Please accept if answers your question or Like if helps in any way.
Thanks,
Drew
dpoggemann
Most Valuable Professional
Most Valuable Professional

Hi @GraemeNZ ,

 

Some information for you to review before we get together in a Teams meeting.

 

From your picture above, I think I would setup your model like this (but we can discuss):

  1. Dryer table - This table will contain a list of all the Dryers that you have.  
  2. Department Type table - This table till contain a list of the different types of departments that exist, in your situation it sounds like this table would have 4 entries.
  3. Department table - This table would be a child table of the Dryer table (parental relationship) so it would have a lookup column for the Dryer and should also have a lookup column for the Department Type.
  4. Door Type table - This assumes you have specific Door types that exist within the Department on the Dryer.  If that is not the case then this would not be required as a table
  5. Door table  - The Door table would be a child table to the Department (parental relationship).  The Door table should have a Lookup to the Department and a lookup to the Door Type table (if that is required).
  6. Door Tag table - This is the table you will track the door tags for each door. It will track historical tags including the tag numbers, date installed, reason for replacement, etc.  This is your true transactional table for replacing the tags.  This table should be a child of the Door table with the lookup column for Door.

With the model above, you will be able to do the following:

  • See listings of all your Dryers, Departments, Doors, Door Tags in views in your model app
  • On the Dryer form you can have a tab, or even a section with a subgrid, on the page for all Departments related to that Dryer and click through that Department to go to that specific Department page
  • On the Department form you can display a tab for the Doors (or a section with subgrid) to display the Doors related to the Department and click through to the Door specifically
  • On the Door page you can view all of the Door Tags in a tab or section and add new door tags to the subgrid with details on why the tag is added etc.

When we meet we can discuss this in detail but thought I would articulate above.  This appears to be a good fit for a model app based on what I know at this point.

 

Hope this helps. Please accept if answers your question or Like if helps in any way.
Thanks,
Drew

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