Partial date unknown month evaluation

Check if the month of the date question is selected as unknown (UNK) and display a query if needed.

Rule description: if UNK is selected as Month for Date of Initial Diagnosis then a query is issued.

Rule expression

if(DIADT.getMonth()==='UNK')     //checks for the presence of 'UNK' value as the month of a date
{
   return false;                   //System sends query when return false condition is met
}
else
{
   return true;
}

Query message: UNK has been selected for Month. Please verify and provide.

Definitions

DIADT

Corresponds to the Date of Initial Diagnosis from rule description.

===

Equal to comparison operator. Compares both the value and type to be equal.

.getMonth()

JavaScript method for date type elements. Retrieves the numeric value of the month in a date, for example '11' as the numeric value of Novemeber in '01-Nov-2021 15:03'. Returns 'UNK' if month value is not present.

Return value

Boolean

Returns either true or false. System raises query when return false condition is met.

Verification steps

1. Using a subject for testing, go to the given visit and form containing the date item to check, in this example the date of initial diagnosis <DIADT> .
2. Update the form item DIADT as in the following table and verify the result is as listed:

   DIADT	Result
   10-May-2021	No query
   UNK-UNK-2021	Query
   UNK-May-2021	No query
   05-Jun-2021	No query
   UNK-UNK-2021	Query
   Null	No query

Note:

Repeat the above steps if the form is present in multiple visits.