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Modify ENTITIES in local mode on ABAP Behavior Implementation

Hi, I have been struggling on Creating default id. I already following step 4 on method METHOD calculatetravelkey, on different entity and table.

I have this behavior class

managed implementation in class zbp_i_family_asd unique;

define behavior for ZI_FAMILY_ASD alias Family
persistent table ZFAMILY_ASD
lock master
etag master lastchanged_at
determination CalculateDefault on modify { create; }

And this implement class

    METHODS CalculateDefault FOR DETERMINATION Family~CalculateDefault
      IMPORTING keys FOR Family.
METHOD CalculateDefault.
    Select From zfamily_asd
        FIELDS MAX( family_id ) INTO @DATA(lv_max_familyId).

        lv_max_familyId = lv_max_familyId + 1.
        Loop AT keys INTO DATA(key).
            ENTITY Family
            UPDATE SET FIELDS WITH VALUE #( ( family_id = lv_max_familyId ) )
            REPORTED DATA(newData).
        APPEND LINES OF newData-family To reported-family.

Output :

  • Change not possible; entity does not exist.
  • FamilyId = 0
Can anyone help me ? Can anyone give links of Modify Entities in local mode's documentation? I can't find it.Thank you!
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1 Answer

  • Posted on Jun 30 at 10:14 AM

    Hi Mary Franklin,

    Is family_id the key field property in your table ? if yes i guess it will not work. Even i faced the same issue but later found out it works well with non key fields.

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