Write to MDSE with conditions

RE: Write to MDSE with conditions

ravalik — Wed, 21 Nov 2018 03:39:17 GMT

Hi harshav,

please go through this link.It might be helpful.
docs.appian.com/.../Write_to_Multiple_Data_Store_Entities_Smart_Service.html

Thanks,
ravalik

RE: Write to MDSE with conditions

Hema — Wed, 21 Nov 2018 03:03:18 GMT

Hi Harsha,

As Alok mentioned, if the data attribute doesn't have any value, that won't be stored into DB.

As a best practice, instead of directly calling the Write to Multiple Data Store Entity Smart Service node in the process model in which you want to update, create an utility process model (should contain Write to Multiple Data Store Entity with all the inputs given and outputs configured) and then configure that process model as a Sub Process. You can pass the required variables as parameters. Also, you can get the necessary outputs.

Hope this helps!!!

Thanks,
Hema

RE: Write to MDSE with conditions

aloks0189 — Wed, 21 Nov 2018 00:15:21 GMT

Hi Harsha,

As per my experience with Write to Multiple Data Store Entity, when the value of your data attribute is empty i.e. {} then appian do not store anything into DB. e.g:

{
  a!entityData(
    entity: cons!FIRST_DATA_STORE_ENTITY,
    data: {}
  ),
  a!entityData(
    entity: cons!SECOND_DATA_STORE_ENTITY,
    data: type!MY_CDT(
      id: 1,
      name: "test"
    )
  )
}

As shown in above code snippet, there will be a transaction to store the data into the entity mapped with SECOND_DATA_STORE_ENTITY constant, whereas another will be skipped as it's data is empty. Hence you need to form the EntityData in the similar way to be used in Write to Multiple Data Store Entity Smart Service.

Also, it's worth checking this link.

Hope this will help.