What is a null CDT ?How do I check whether the CDT is null ?

RE: What is a null CDT ?How do I check whether the CDT is null ?

Sai Manam — Thu, 30 Mar 2023 01:07:24 GMT

This is smart worked well.

RE: What is a null CDT ?How do I check whether the CDT is null ?

Abhay Dalsaniya — Mon, 13 Feb 2023 16:59:26 GMT

Good to know this. thank Keshav Dadhich for sharing.

RE: What is a null CDT ?How do I check whether the CDT is null ?

Keshav Dadhich — Mon, 13 Feb 2023 16:30:39 GMT

You can refer to this code.

This is how you can check whether the CDT is null or not.

RE: What is a null CDT ?How do I check whether the CDT is null ?

Harshit Bumb (Appyzie) — Mon, 25 Jul 2022 07:26:12 GMT

This code will only check if it is null or not.
So wherever you are calling it from, you can put it in an if condition. Basically, it is for null handling on run time.

RE: What is a null CDT ?How do I check whether the CDT is null ?

krishnav9816 — Mon, 25 Jul 2022 07:19:23 GMT

i get true only thats means its a null cdt right or not, if i am passing this cdt through process model we get error like The record to be saved must not be null is it right or not?

RE: What is a null CDT ?How do I check whether the CDT is null ?

Harshit Bumb (Appyzie) — Mon, 25 Jul 2022 07:09:51 GMT

a!localVariables(
  local!keys: a!keys(ri!cdt),
  and(
    a!forEach(
      items: local!keys,
      expression: a!isNullOrEmpty(property(ri!cdt, fv!item, {}))
    )
  )
)

RE: What is a null CDT ?How do I check whether the CDT is null ?

krishnav9816 — Mon, 25 Jul 2022 07:03:02 GMT

show me one example please i will do till a!keys() and perfectly gets after trying not get any values please show me one example

RE: What is a null CDT ?How do I check whether the CDT is null ?

krishnav9816 — Mon, 25 Jul 2022 06:47:28 GMT

if I get true then what is solution?

RE: What is a null CDT ?How do I check whether the CDT is null ?

Harshit Bumb (Appyzie) — Mon, 25 Jul 2022 05:55:53 GMT

A CDT is like a class. It gives structure to a raw data.
To check if it is null, you can simply pass the CDT type variable in a!keys() function and it will give you all the fields. Now you can run a loop on those values and use the property() function in the expression of that loop along with a!isNullOrEmpty()

If all the values are null, then the CDT was null. Else it wasn't null.

RE: What is a null CDT ?How do I check whether the CDT is null ?

deepakg271869 — Mon, 25 Jul 2022 03:40:34 GMT

CDT is a datastructure where you can store your values as a defined manner. To check whether the CDT is null/empty or not, function is available called isNotNullorEmpty. in this function, you can put your local variable in which your are defining your cdt and this function return true/False.

RE: What is a null CDT ?How do I check whether the CDT is null ?

fredaf — Sat, 23 Jul 2022 17:01:36 GMT

A null CDT would be a data structure that does not have any values stored in it for your specific instance. So for example you have a cdt of type employee, and it looked like this -

CDT - Employee
Fields - empID, firstName, lastName

A populated CDT would look like -
type!{namespace}Employee(empID: 1, firstName :"ABC", lastName:"XYZ" )

And a null CDT would be one without any values with just an empty structure - where the value would show as 'null'.
Another level to look at it is where the CDT exists but having empty fields - 'type!{namespace}Employee(), this creates a CDT with fields that have empty values - type!{namespace}Employee(empID: null, firstName :"", lastName:"" )

You will notice this when you have an ri of a CDT on an interface where the CDT has not been populated with values yet. Once it gets populated the ri can be split to see the values for each field.