How to add a custom field to Fiori TRV 2.0 Travel Request App and persist it?

[flotxi]

Hello experts,

I am trying to add new custom fields to the Fiori TRV 2.0 Travel Request app but can't figure out how to do that on the frontend.

Following the note 2693032 there are two ways to do that:

1. Creating a local annotation file in my app extension
2. Modify two helper classes which create the annotations within the MPC_EXT class.

When I try to create the local annotation I will get following error opening the annotation modeller:

And modifying (even if it's via enhancement points) will be my last option.

Now I am thinking about trying to add the fields like the Travel Expense 2.0 app (via some view and controller extensions). But that's not the suggested way by SAP. What do you think?

And even if I get to display the field one day, I have not found any documentation on how to persist the new fields on the travel header.

Thanks in advance and best regards,

Florian

[gregorw]

If you wanted to provide a screenshot with the error message, then you should try to upload it again.

[flotxi]

Ok I got to display the fields in an extension project without local annotations and without modifications using ViewModifications.

My manifest.json:

"sap.ui.viewExtensions": {
	"sap.fin.travel.lib.reuse.DetailPage.view.fragments.Sections": {
		"BeforeFacet|TravelRequests|CostAssignmentSetId": {
			"type": "XML",
			"className": "sap.ui.core.Fragment",
			"fragmentName": "fin.travel.mytravelrequestsv2.FIN_TR_CRE_V2Extension.view.fragments.GeneralInfo",
			"sap.fin.travel.lib.reuse": {
				"title": "Zusatzdaten",
				"hiddenProperty": "HiddenAdditionalData"
			}
		}
	}
}

And here the extenstion fragment:

<core:FragmentDefinition xmlns:form="sap.ui.layout.form" xmlns:core="sap.ui.core" xmlns="sap.m" xmlns:sfi="sap.ui.comp.smartfield"
	xmlns:uxap="sap.uxap" xmlns:sfo="sap.ui.comp.smartform">
	<uxap:blocks>
		<sfo:SmartForm id="PerDiem::SmartForm">
			<sfo:layout>
				<sfo:Layout columnsM="2" columnsL="2" columnsXL="2" labelSpanS="12" labelSpanM="12" labelSpanL="12" labelSpanXL="12"
					singleGroupFullSize="false"/>
			</sfo:layout>
			<sfo:Group id="PerDiem::Meals::Group" visible="true" label="Kundenfelder">
				<sfo:GroupElement id="PerDiem::ZzFieldOne::GroupElement">
					<sfi:SmartLabel id="PerDiem::ZzFieldOne::Label" labelFor="ZzFieldOne" text="Seminarnummer:"/>
					<sfi:SmartField id="ZzFieldOne" value="{ZzFieldOne}"/>
				</sfo:GroupElement>
				<sfo:GroupElement id="PerDiem::ZzZZTHREE::GroupElement">
					<VBox>
						<Label labelFor="rbg2" text="ZZTHREE oder ZZTWO:"/>
						<RadioButtonGroup id="rbg2" columns="2" class="sapUiMediumMarginBottom">
							<RadioButton groupName="GroupA" text="ZZTWO" selected="{ZzZZTWO}" enabled="{= !${EditVisible} && ${ZzZZTWOFc} > 1 }"/>
							<RadioButton groupName="GroupA" text="ZZTHREE" selected="{ZzZZTHREE}" enabled="{= !${EditVisible} && ${ZzZZTHREEFc} > 1 }"/>
						</RadioButtonGroup>
					</VBox>
				</sfo:GroupElement>
			</sfo:Group>
		</sfo:SmartForm>
	</uxap:blocks>
</core:FragmentDefinition>

I added these three new fields to my OData Extension Project in SEGW and they are now even moved from the app into my entity methods.

So now comes the next blackbox: Using the Check Badi against my new custom fields and persisting them.

Anybody got an idea?

I am thinking about z-appending every single standard structure to get my custom fields to the cluster and ptrv_head... but sounds like a bad idea so far :P.

[xykrbck]

Hello Florian,

I also get the same error in the annotation models section. Can you help with this issue?

Thank you for your helps,

[flotxi]

Hi Yusuf,

I can't provide you with a solution for this error. At the end I worked with View Extension:

My Manifest file:

And the beginnning of my extension fragment:

I hope this helps!

Best regards,

Florian