Product:
Planning Analytics 2.0.19
Microsoft Windows 2019 server

Issue:
How get the parent and child of a dimension to a text file?

 

Solution:

Create a new TM1 TI process with the data source to the dimension.

And a parameter where you enter the dimension:

And the TM1 code as below:

#Section Prolog


# -- check the enter value to not be blank --
IF (LONG(pDimension) = 0 ) ;
sDim = 'account' ;
ELSE;
sDim = pDimension ;
ENDIF;
sOutputFile = 'D:\temp\' | sDim | '.csv';

# -- set the dimension as source --
DatasourceNameForServer = sDim ;
DatasourceNameForClient = sDim ;
DATASOURCEDIMENSIONSUBSET = 'all';

#Section Metadata

#Section Data

# ----- export the dimension ---

sElementType = DTYPE ( sDim, v1 );
# always output the element and its type
AsciiOutput ( sOutputFile, sElementType , v1 );
# cycle through children if it is a consolidated element
IF ( sElementType @= 'C' );
iCount = 1;
iMax = ElCompN ( sDim, v1 );
While ( iCount <= iMax );
sChild = ElComp ( sDim, v1, iCount );
sWeight = NumberToString ( ElWeight ( sDim, v1, sChild ) );
AsciiOutput ( sOutputFile, '', sChild , sWeight );
iCount = iCount + 1;
End;
EndIf;

#Section Epilog

This need to be adjusted to meet your needs.

 

More Information:

https://exploringtm1.com/how-to-use-a-dynamic-path-in-a-ti-for-a-data-source/ 

https://www.ibm.com/docs/en/cognos-tm1/10.2.2?topic=variables-datasourcedimensionsubset

https://lodestarsolutions.com/tag/tm1-dimension-subsets/

https://www.wimgielis.com/tm1_mdxstatements_EN.htm