Displaying server-side OData messages in ui5 (Ui5con 2017)
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Displaying success, error, information, and warning messages is often used in web application. These messages can be generated on UI side or they can come from a backend. UI5 has built-in features that allow to handle the messages easily. And with the underlying Fiori Design Guidelines you still keep your UI looking nice. This is my session from the UI5Con 2017 on March 24th, 2017. Unfortunately, I had technical issues to record the session during my talk. After I was asked from some people to offer the recording I recorded this session the day after the conference.
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Displaying server-side OData messages in ui5 (Ui5con 2017)
- 1. © nabisoft. All rights reserved. Proprietary and confidential. Displaying Server Side OData Messages in UI5 Success, error, information, and warning messages can be so easy in UI5 www.nabisoft.com Nabi Zamani, CEO & Software Engineer3/24/2017
- 2. www.nabisoft.com 2 Message Handling is described in the Fiori Design Guidelines Source: https://experience.sap.com/fiori-design-web/messaging/ How can we implement this in UI5? - UI messages - Server-side messages (OData)
- 3. www.nabisoft.com 3 There is little information about messages in the Developer Guide
- 4. www.nabisoft.com 4 I‘ve prepared 3 examples in my local Explored App
- 5. www.nabisoft.com 5 Demo will be available online soon... Live DemoLet’s have a look at the 3 examples now
- 6. www.nabisoft.com 6 Hint: There is a gap between MassageType and ValueState There is currently no mapping for MessageType.Information
- 7. www.nabisoft.com 7 OData has a well defined format for error responses Source: http://www.odata.org/documentation/odata-version-2-0/operations/ No information found here (anymore?) OData 2.0
- 8. www.nabisoft.com 8 OData has a well defined format for error responses Source: http://www.odata.org/documentation/odata-version-3-0/json-verbose-format/ OData 3.0
- 9. www.nabisoft.com 9 OData has a well defined format for error responses Source: http://docs.oasis-open.org/odata/odata-json-format/v4.0/errata03/os/odata-json-format-v4.0-errata03-os-complete.html#_Toc453766668 OData 4.0
- 10. www.nabisoft.com 10 SAP Gateway supports error responses as well - This is a simple example every ABAP developer knows - By using Message Containers you can add more details
- 11. www.nabisoft.com 11 Previous ABAP code leads to the following OData error response
- 12. www.nabisoft.com 12 Unfortunately, this causes „double“ messages in MessagePopover
- 13. www.nabisoft.com 13 ...because UI5 parses the messages like this Relevant code snippet of sap.ui.model.odata.ODataMessageParser:
- 14. www.nabisoft.com 14 ...and because SAP Gateway seems not to be correctly aligned with UI5
- 15. www.nabisoft.com 15 Thank You Code is on github: git clone https://github.com/nzamani/openui5.git cd openui5 git checkout ui5con2017-odata-messages npm install grunt serve http://localhost:8080/testsuite/explored.html#/entity/sap.ui.core.message.Message Manager/samples
Notas do Editor
- { "error":{ "code":"/IWBEP/CM_MGW_RT/021", "message":{ "lang":"en", "value":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class." }, "innererror":{ "application":{ "component_id":"", "service_namespace":"/SAP/", "service_id":"ZNABI_EMPLOYEE_SRV", "service_version":"0001" }, "transactionid":"58BDC3218BC10D60E10080000AF0030E", "timestamp":"20170307090853.3367070", "Error_Resolution":{ "SAP_Transaction":"Run transaction /IWFND/ERROR_LOG on SAP Gateway hub system (System Alias LOCAL) and search for entries with the timestamp above for more details", "SAP_Note":"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)" }, "errordetails":[ { "code":"/IWBEP/CX_MGW_NOT_IMPL_EXC", "message":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class", "propertyref":"", "severity":"error", "target":"" } ] } }};
- { "error":{ "code":"/IWBEP/CM_MGW_RT/021", "message":{ "lang":"en", "value":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class." }, "innererror":{ "application":{ "component_id":"", "service_namespace":"/SAP/", "service_id":"ZNABI_EMPLOYEE_SRV", "service_version":"0001" }, "transactionid":"58BDC3218BC10D60E10080000AF0030E", "timestamp":"20170307090853.3367070", "Error_Resolution":{ "SAP_Transaction":"Run transaction /IWFND/ERROR_LOG on SAP Gateway hub system (System Alias LOCAL) and search for entries with the timestamp above for more details", "SAP_Note":"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)" }, "errordetails":[ { "code":"/IWBEP/CX_MGW_NOT_IMPL_EXC", "message":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class", "propertyref":"", "severity":"error", "target":"" } ] } }};
- { "error":{ "code":"/IWBEP/CM_MGW_RT/021", "message":{ "lang":"en", "value":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class." }, "innererror":{ "application":{ "component_id":"", "service_namespace":"/SAP/", "service_id":"ZNABI_EMPLOYEE_SRV", "service_version":"0001" }, "transactionid":"58BDC3218BC10D60E10080000AF0030E", "timestamp":"20170307090853.3367070", "Error_Resolution":{ "SAP_Transaction":"Run transaction /IWFND/ERROR_LOG on SAP Gateway hub system (System Alias LOCAL) and search for entries with the timestamp above for more details", "SAP_Note":"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)" }, "errordetails":[ { "code":"/IWBEP/CX_MGW_NOT_IMPL_EXC", "message":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class", "propertyref":"", "severity":"error", "target":"" } ] } }};
- { "error":{ "code":"/IWBEP/CM_MGW_RT/021", "message":{ "lang":"en", "value":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class." }, "innererror":{ "application":{ "component_id":"", "service_namespace":"/SAP/", "service_id":"ZNABI_EMPLOYEE_SRV", "service_version":"0001" }, "transactionid":"58BDC3218BC10D60E10080000AF0030E", "timestamp":"20170307090853.3367070", "Error_Resolution":{ "SAP_Transaction":"Run transaction /IWFND/ERROR_LOG on SAP Gateway hub system (System Alias LOCAL) and search for entries with the timestamp above for more details", "SAP_Note":"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)" }, "errordetails":[ { "code":"/IWBEP/CX_MGW_NOT_IMPL_EXC", "message":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class", "propertyref":"", "severity":"error", "target":"" } ] } }};
- { "error":{ "code":"/IWBEP/CM_MGW_RT/021", "message":{ "lang":"en", "value":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class." }, "innererror":{ "application":{ "component_id":"", "service_namespace":"/SAP/", "service_id":"ZNABI_EMPLOYEE_SRV", "service_version":"0001" }, "transactionid":"58BDC3218BC10D60E10080000AF0030E", "timestamp":"20170307090853.3367070", "Error_Resolution":{ "SAP_Transaction":"Run transaction /IWFND/ERROR_LOG on SAP Gateway hub system (System Alias LOCAL) and search for entries with the timestamp above for more details", "SAP_Note":"See SAP Note 1797736 for error analysis (https://service.sap.com/sap/support/notes/1797736)" }, "errordetails":[ { "code":"/IWBEP/CX_MGW_NOT_IMPL_EXC", "message":"Method 'EMPLOYEES_GET_ENTITYSET' not implemented in data provider class", "propertyref":"", "severity":"error", "target":"" } ] } }}