SAP CRM Fiori My appointment点了Edit按钮后的三个roundtrip详解
my appointment edit之后有3個sequential 的roundtrip
我看了下現(xiàn)在的三組串行的roundtrip,我覺得我們需要搞清楚第三組到底會不會阻塞user的ui操作:
GET /sap/fiori/cuscrmmycalendar/sap/opu/odata/sap/CRM_APPOINTMENT_SRV/EditAuthorizationCheck?ObjectGuid=guid’3440B5B1-6F66-1ED5-8BEB-A758FAFA33B7’ HTTP/1.1
response:
{“d”:{“EditAuthorizationCheck”:{"__metadata":{“type”:“CRM_APPOINTMENT_SRV.ActionResult”},“ActionSuccessful”:“X”,“Message”:""}}
2.a 拿ETAG request: sap/fiori/cuscrmmycalendar/sap/opu/odata/sap/CRM_APPOINTMENT_SRV/AppointmentSet(guid’3440B5B1-6F66-1ED5-8BEB-BE9CE64BF3E8’)
response:
2.b 拿appointment的attendee和attachment信息:
sap/fiori/cuscrmmycalendar/sap/opu/odata/sap/CRM_APPOINTMENT_SRV/AppointmentSet(guid’3440B5B1-6F66-1ED5-8BEB-BE9CE64BF3E8’)?$expand=Attendee,AppointmentToAttachment
3.a 在appointment的attendee和attachment信息讀取回來之后,在successHandler里再繼續(xù)讀note信息。3.a和2.b是串行的,即2.b執(zhí)行完之后,才輪到3.a執(zhí)行:
3.b 還是在appointment和attendee的信息讀取回來之后,在successHandler里調(diào)用attachment view的bindElement方法:
這個方法會call到框架的createBindingContext,最終導(dǎo)致再trigger一個odata request:
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