Technology Blogs by Members
Explore a vibrant mix of technical expertise, industry insights, and tech buzz in member blogs covering SAP products, technology, and events. Get in the mix!
cancel
Showing results for 
Search instead for 
Did you mean: 
himanshuverma21
Explorer
0 Kudos

Hello Everyone,


 

We have read from several previous blog posts  - RAP for Beginners ,   Modernization with RAP, Managed RAP.

RAP is framework that would still allow to use the ABAP to develop Modern applications.

With the below blog I want to show a real life use case which demonstrate the power and easy of use of unmanaged RAP.

With the below demo we develop an unmanaged RAP application that utilizes standard SAP API and EML to allow uses to create and update SAP Requisitions.

 

Unmanaged RAP model for Purchase Requisition




  1. Create new CDS root entity view, use the below code: -
    @AccessControl.authorizationCheck: #NOT_REQUIRED
    @EndUserText.label: 'PR Header root view'
    define root view entity YRAP_RV_PRHEADER
    as select from I_PurchaseRequisitionItemAPI01 //as _prhead
    {
    key PurchaseRequisition as prnum,
    key PurchaseRequisitionItem,
    PurchaseReqnItemUniqueID,
    PurchasingDocument,
    PurchasingDocumentItem,
    PurReqnReleaseStatus,
    PurchaseRequisitionType,
    PurchasingDocumentSubtype,
    PurchasingDocumentItemCategory,
    PurchaseRequisitionItemText,
    AccountAssignmentCategory,
    Material,
    MaterialGroup,
    PurchasingDocumentCategory,
    RequestedQuantity,
    BaseUnit,
    PurchaseRequisitionPrice,
    PurReqnPriceQuantity,
    MaterialGoodsReceiptDuration,
    ReleaseCode,
    PurchaseRequisitionReleaseDate,
    PurchasingOrganization,
    PurchasingGroup,
    Plant,
    OrderedQuantity,
    DeliveryDate,
    CreationDate,
    CreatedByUser,
    PurReqCreationDate,
    PurReqnItemCurrency,
    /* Associations */
    _PurchaseRequisition,
    _PurReqnAcctAssgmt
    }


  2. Create Projection view for the root view already created.
    @EndUserText.label: 'Projection view for PR Header'
    @Metadata.allowExtensions: true
    @AccessControl.authorizationCheck: #NOT_REQUIRED
    @Search.searchable: true
    define root view entity YRAP_PV_PRHEADER
    provider contract transactional_query
    as projection on YRAP_RV_PRHEADER

    {
    key prnum,
    key PurchaseRequisitionItem,
    PurchaseReqnItemUniqueID,
    PurchasingDocument,
    PurchasingDocumentItem,
    PurReqnReleaseStatus,
    PurchaseRequisitionType,
    PurchasingDocumentSubtype,
    PurchasingDocumentItemCategory,
    PurchaseRequisitionItemText,
    @Consumption.valueHelpDefinition: [{

    entity: {
    name: 'I_AccountAssignmentCategory',
    element: 'AccountAssignmentCategory'
    }}]
    @ObjectModel.text.element: ['AccountAssignmentCategory']
    @Search.defaultSearchElement: true
    AccountAssignmentCategory,
    Material,
    @Consumption.valueHelpDefinition: [{

    entity: {
    name: 'I_ProductGroup_2',
    element: 'ProductGroup'
    }}]
    @ObjectModel.text.element: ['MaterialGroup']
    @Search.defaultSearchElement: true
    MaterialGroup,
    PurchasingDocumentCategory,
    RequestedQuantity,
    BaseUnit,
    PurchaseRequisitionPrice,
    PurReqnPriceQuantity,
    MaterialGoodsReceiptDuration,
    ReleaseCode,
    PurchaseRequisitionReleaseDate,
    PurchasingOrganization,
    @Consumption.valueHelpDefinition: [{

    entity: {
    name: 'I_PURCHASINGGROUP',
    element: 'PurchasingGroup'
    }}]
    @ObjectModel.text.element: ['PurchasingGroup']
    @Search.defaultSearchElement: true
    PurchasingGroup,
    @Consumption.valueHelpDefinition: [{

    entity: {
    name: 'I_PLANT',
    element: 'Plant'
    }}]
    @ObjectModel.text.element: ['Plant']
    @Search.defaultSearchElement: true
    Plant,
    OrderedQuantity,
    DeliveryDate,
    CreationDate,
    CreatedByUser,
    PurReqCreationDate,
    PurReqnItemCurrency,
    /* Associations */
    _PurchaseRequisition,
    _PurReqnAcctAssgmt
    }


  3. Right click on the Root View and select to create new behavior definitions for the Root view and  activate it. Choose unmanaged implementation type.
    unmanaged implementation in class zbp_rap_rv_prheader unique;
    strict ( 2 );
    define behavior for YRAP_RV_PRHEADER alias prhead
    late numbering
    lock master
    authorization master ( instance )
    etag master PurReqCreationDate
    {

    field ( readonly )
    prnum;
    // PurchaseRequisitionItem;

    create;
    update;
    delete;

    }​


  4. Right click on the Projection Root View and create and activate the projection behavior definition.
    projection;
    strict ( 2 );

    define behavior for YRAP_PV_PRHEADER alias prhead
    {
    use create;
    use update;
    use delete;
    }​


  5. Open the Root behavior definition and create the implementation class.

  6. Add the code for the create and update class.
     METHOD create.
    **** Custom Create
    LOOP AT entities ASSIGNING FIELD-SYMBOL(<fs_prs>).

    *** now try to post

    MODIFY ENTITIES OF i_purchaserequisitiontp
    ENTITY purchaserequisition
    CREATE FIELDS ( purchaserequisitiontype )
    WITH VALUE #( ( %cid = 'My%CID_1'
    purchaserequisitiontype = 'NB' ) )

    CREATE BY \_purchaserequisitionitem
    FIELDS ( plant
    purchaserequisitionitemtext
    accountassignmentcategory
    requestedquantity
    baseunit
    purchaserequisitionprice
    purreqnitemcurrency
    materialgroup
    purchasinggroup

    )
    WITH VALUE #(
    ( %cid_ref = 'My%CID_1'
    %target = VALUE #(
    ( %cid = 'My%ItemCID_1'
    plant = <fs_prs>-plant
    purchaserequisitionitemtext = <fs_prs>-purchaserequisitionitemtext
    accountassignmentcategory = <fs_prs>-accountassignmentcategory
    requestedquantity = <fs_prs>-requestedquantity
    baseunit = <fs_prs>-baseunit
    purchaserequisitionprice = <fs_prs>-purchaserequisitionprice
    purreqnitemcurrency = <fs_prs>-purreqnitemcurrency
    materialgroup = <fs_prs>-materialgroup
    purchasinggroup = <fs_prs>-purchasinggroup

    )
    )
    )
    )
    ENTITY purchaserequisitionitem


    CREATE BY \_purchasereqnitemtext
    FIELDS ( plainlongtext )
    WITH VALUE #( ( %cid_ref = 'My%ItemCID_1'
    %target = VALUE #( (
    %cid = 'MyTargetCID_2'
    textobjecttype = 'B01'
    language = 'E'
    plainlongtext = 'item text created from PR Unmanaged APP'
    ) (
    %cid = 'MyTargetCID_3'
    textobjecttype = 'B02'
    language = 'E'
    plainlongtext = 'item2 text created from PR Unmanaged APP'
    ) )
    ) )

    REPORTED DATA(ls_reported)
    MAPPED DATA(ls_mapped)
    FAILED DATA(ls_failed).
    ENDLOOP.

    ENDMETHOD.

    METHOD update.

    LOOP AT entities ASSIGNING FIELD-SYMBOL(<fs_prs>).
    *** Update values


    MODIFY ENTITIES OF i_purchaserequisitiontp
    ENTITY purchaserequisitionitem UPDATE
    SET FIELDS WITH VALUE #( (
    purchaserequisition = <fs_prs>-prnum
    purchaserequisitionitem = <fs_prs>-purchaserequisitionitem
    purchaserequisitionitemtext = <fs_prs>-purchaserequisitionitemtext
    requestedquantity = <fs_prs>-requestedquantity
    baseunit = <fs_prs>-baseunit
    ) ) .

    ENDLOOP.
    ENDMETHOD.​


  7. In the above we are using the standard SAP provided API "i_purchaserequisitiontp" which is released for development in cloud and can be used for upgrade stable development.

  8. Create service definition.

  9. Create service binding. We will use V2 as we cannot still have the create with V4 for applications without drafts.

  10. This can now be tested using the FIORI Element preview.


With the above example we can use other SAP standard APIs with RAP and build apps that allow us to resolve real work problems.

Hope you all would find the blog helpful and would request you all to provide your thoughts or feedback as comments to this blog.

If you have any questions related to RAP please use the below: -

Q&A

Also join the community for other wonderful information on this topic:- https://blogs.sap.com/tags/7e44126e-7b27-471d-a379-df205a12b1ff/

 

FIORI elements preview: -


 

 
8 Comments
Labels in this area