App Extensibility: Define Subjects

Use

You can extend the Define Subjects app according to your business needs for different aspects. For this purpose, the following extensibility options are available:

You can extend the app to hide existing fields.

Any fields apart from the mandatory fields can be hidden from the user interface.
You can extend the app to add new additional fields in the Basic Information section of Create, Display, or Edit screens.

Extensibility Options

To add a customer field to the app, the extensibility entities listed below are available on the different software layers. You have to extend each of these entities according to your specific business needs:

UI		Back End/ABAP
View	Extension Point	Design Time: Gateway Entity	Design Time: Extension Include (in DDIC Structure)	Runtime: Superclass/ Method to Be Redefined
ux.fnd.definesubject.view.S3	custSubjFieldsLabels	Subject	SMI_S_DFNSUBJ_SUBJECTSETTING	Superclass: CL_SOMI_DEFINE_SUBJ_02_DPC_EXT Method: SUBJECTSET_GET_ENTITY
ux.fnd.definesubject.view.S3	custSubjFields	Subject	SMI_S_DFNSUBJ_SUBJECTSETTING	Superclass: CL_SOMI_DEFINE_SUBJ_02_DPC_EXT Method: SUBJECTSET_GET_ENTITY
ux.fnd.definesubject.view.S4	custSubjFieldsEdit	Subject	SMI_S_DFNSUBJ_SUBJECTSETTING	Superclass: CL_SOMI_DEFINE_SUBJ_02_DPC_EXT Method: SUBJECTSET_UPDATE_ENTITY
ux.fnd.definesubject.view.S5	custSubjFieldsCreate	Subject	SMI_S_DFNSUBJ_SUBJECTSETTING	Superclass: CL_SOMI_DEFINE_SUBJ_02_DPC_EXT Method: CUSTOM_CREATE_DEEP_ENTITY

Further Extensibility Entities

Business Add-Ins (BAdIs)

The following BAdI is available for extensibility purposes:

Maintain Additional Data for a Subject (BADI_SOMI_DEFINE_SUBJECT)

You can use this BAdI to maintain additional data in the OData service for a subject. This BAdI is called in the Data Provider Secondary Class (CL_SOMI_DEFINE_SUBJ_02_DPC_EXT).

UI Controller Hooks

To plug in and execute custom code, the following hooks are available in the controller code:

Controller	Hook	Use
ux.fnd.definesubject.view.S4	extHookGetCustomFieldData	Allows you to fetch data for the newly added field in the Edit screen
ux.fnd.definesubject.view.S4	extHookCheckCustomFieldData	Allows you to check data for changes in the newly added field in the Edit screen
ux.fnd.definesubject.view.S4	extHookClearCustomFieldData	Allows you to clear data from the newly added field in the Edit screen
ux.fnd.definesubject.view.S5	extHookGetCustomFieldData2	Allows you to fetch data for the newly added field in the Create screen
ux.fnd.definesubject.view.S5	extHookCheckCustomFieldData2	Allows you to check data for changes in the newly added field in the Create screen
ux.fnd.definesubject.view.S5	extHookClearCustomFieldData2	Allows you to clear data from the newly added field in the Create screen
ux.fnd.definesubject.view.S3	extHookGetCustomDisplayData	Allows you to fetch data for the newly added field in the Display screen

If there are additional UI controller hooks available in the controller code, you can add own code. For more information, see the extensibility documentation for the respective SAP NetWeaver release on your front-end server at http://help.sap.com/fiori_implementation Start of the navigation path Extensibility Information for SAP Fiori Next navigation step Extending the UI Layer UI Extensibility Workflow Checking the SAP-Enabled Extension Options UI Controller Hooks End of the navigation path .

Display of UI Controls

The following UI controls can be hidden on the app UI:

View	Control ID	Use
S2	item_period	Allows you to hide the time period for which the posts were harvested
S3	LSubjectDescription TSubjectDescription	Allows you to hide subject description label and text box
S3	LExcludeFrmQry CBExcludeFrmQry	Allows you to hide Exclude from Query label and check box.
S3	LDataHarvesting idHarvestingSwitch	Allows you to hide the data harvesting label and switch
S4	LSubjectDescription ISubjectDescription	Allows you to hide subject description label and input box
S4	LExcludeFrmQry CBExcludeFrmQry	Allows you to hide Exclude from Query label and check box
S4	TDataHarvesting idHarvestingSwitch	Allows you to hide the text and the switch
S5	LSubjectDescription ISubjectDescription	Allows you to hide subject description label and input box
S5	LExcludeFrmQry CBExcludeFrmQry	Allows you to hide Exclude from Query label and check box
S5	TDataHarvesting SHarvestingSwitch	Allows you to hide the text and the switch

For more information about hiding UI controls, see the extensibility documentation for the respective SAP NetWeaver release on your front-end server at http://help.sap.com/fiori_implementation Start of the navigation path Extensibility Information for SAP Fiori Next navigation step Extending the UI Layer UI Extensibility Workflow Checking the SAP-Enabled Extension Options Hiding UI Controls End of the navigation path .

More Information

For a general description of the extensibility options and procedures of SAP Fiori apps, see http://help.sap.com/fiori_implementation Start of the navigation path Extensibility Information for SAP Fiori End of the navigation path .