How to Adding a New Entity and Implement it

[Former Member]

The conclude words:

The following are the processes for adding a new entity to extend the OData service:

1. In your target service, CRM_ODATA , create and add the new entity--CustomizingPriority, and then it will generate a relative entity set, we name it --CustomizingPriorityCollection.

    TCODE: SEGW

2.Configure the ABAP Structure Type Name for entity--CustomizingPriority.

3.Configure the properties for entity--CustomizingPriority.

4.Click [Check] button for messages in case of any wrong in above steps.

5.Click [Generate Runtime Object] button , this is to refresh the metadata. After this, MPC should be ready, please check.

Do 2 checks here:

(1)  Test metadata in SAP GateWay Client.

      Aim:Check entity--CustomizingPriority and it's properties in metadata is ok, see below picture.

      URI: /sap/opu/odata/sap/CRM_ODATA/$metadata

(2) Check model in CL_xxx_MPC.

Aim:Check entity--CustomizingPriority and it's properties in Model Provider Class(CL_xxx_MPC) is ok, see below picture.

6. Create class CL_CRM_ODATA_RT_CUSTPRIORITY (Runtime Class for Customizing Priority) for implementation this entity.

7. Then we should focus on how to implement this entity by coding.

7.1 Class:CL_CRM_ODATA_DPC_EXT

      Method:CONSTRUCTOR

      Coding:

"Customizing Priority. Name the class name and entity name in Data Provider Class.

     READ TABLE gt_data_provider WITH KEY entity_name = cl_crm_bp_odata_model_gen=>GC_ENTITY_NAME_CUST_TASK_PRIO ASSIGNING <ls_data_provider>.

     IF sy-subrc = 0.

       <ls_data_provider>-class_name  = 'CL_CRM_ODATA_RT_CUSTPRIORITY'. "#EC NOTEXT

       <ls_data_provider>-entity_name = 'CustomizingPriority'.  "#EC NOTEXT

     ENDIF.

7.2

      Class:CL_CRM_ODATA_RT_CUSTRPRIORITY

      Method:CONSTRUCTOR

      Coding:

    super->constructor( ).

* Tasks

     IF gr_task_rt  IS NOT BOUND.

       CREATE OBJECT gr_task_rt.

     ENDIF.

7.3

      Class:CL_CRM_ODATA_RT_CUSTPRIORITY

      Method:/IWBEP/IF_MGW_APPL_SRV_RUNTIME~GET_ENTITYSET

      Coding:

DATA: custpriority_get_entityset TYPE cl_crm_odata_mpc=>tt_customizingpriority.

     " EntitySet -CustomizingPriorityCollection

     IF iv_entity_set_name = gc_cust_priority_collection.

*     Call the entity set generated method

       custpriority_get_entityset(

         EXPORTING

          iv_entity_name = iv_entity_name

          iv_entity_set_name = iv_entity_set_name

          iv_source_name = iv_source_name

          it_filter_select_options = it_filter_select_options

          it_order = it_order

          is_paging = is_paging

          it_navigation_path = it_navigation_path

          it_key_tab = it_key_tab

          iv_filter_string = iv_filter_string

          iv_search_string = iv_search_string

          io_tech_request_context = io_tech_request_context

        IMPORTING

          et_entityset = custpriority_get_entityset

          es_response_context = es_response_context

        ).

*     Send specific entity data to the caller interface

       copy_data_to_ref(

         EXPORTING

           is_data = custpriority_get_entityset

         CHANGING

           cr_data = er_entityset

       ).

     ENDIF.

7.4

      Class:CL_CRM_ODATA_RT_CUSTPRIORITY

      Method: CUSTPRIORITY_GET_ENTITYSET

      Coding:

CALL METHOD gr_task_rt->get_user_priorities

       IMPORTING

         et_entityset = et_entityset.

Up to now, the development is done, below is the test result.

8. Test in SAP Gateway Client

URI: /sap/opu/odata/sap/CRM_ODATA/CustomizingPriorityCollection

Result: http 200.