submitUploadedFiles Function usuage

Question

Hello there, 
 I have a Upload field where user uploads 50 rows of 2 columns data from/csv onto form. 
 I have to read all those and display the data in editable grid before submission. 
 To achieve this i have used submitUploadedFiles function with empty process model to start on its button click. 
 Even though data displayed on Interface object correctly, throwing error on front end. 
 Please help me if i did something wrong. 
 Added code snippet for upload and button a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: a!fileUploadField(
 instructions: "NOTE: CSV file size cannot exceed 50 rows and should only include tickers and weights",
 target: cons!SRT_FOLDER_UPLOAD_CSV,
 maxSelections: 1,
 value: ri!document1,
 saveInto: ri!document1
 )
 ),
 a!columnLayout(
 contents: a!buttonArrayLayout(
 buttons: a!buttonWidget(
 label: "Read File",
 saveInto: {
 /*a!submitUploadedFiles(documents: ri!document1),*/
 
 /*a!save(local!validTickers,*/
 /*reject(fn!isnull(_),index(a!flatten(index(rule!SRT_INT_bmuMorningstarUniverse(*/
 /*tickers:index(local!fileTickers,"ticker",{})*/
 /*),*/
 /*"result","body","Universe","Security",{})),"Ticker",{}))),*/
 
 a!startProcess(
 processModel: cons!SRT_PM_UPLOAD_FILE,
 processParameters: {},
 onSuccess: a!submitUploadedFiles(
 onSuccess: {
 a!save(local!submissionSuccessful, true),
 a!save(
 local!parsedFileData,
 index(
 readexcelsheetpaging(
 ri!document1,
 0,
 a!pagingInfo(1, cons!SRT_INT_FILE_IMPORT_ROW_MAX),
 2,
 null,
 true
 ),
 "data",
 "values",
 {}
 )
 ),
 a!save(
 local!fileTickers,
 if(
 rule!APN_isBlank(local!parsedFileData),
 {},
 a!forEach(
 items: local!parsedFileData,
 expression: a!map(
 ticker: if(fv!isFirst, null, fv!item[1]),
 allocation: if(fv!isFirst, null, fv!item[2])
 ),

 )
 )
 ),
 a!save(
 ri!portfolioData1,
 append(
 ri!portfolioData1,
 a!forEach(
 items: remove(
 local!fileTickers,
 wherecontains(
 null,
 index(local!fileTickers, "ticker", {})
 )
 ),
 expression: {
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio'(
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio.fields.{cb090f37-4d4b-43f3-9393-8ceb1cba74a5}tickerOrCusip': fv!item.ticker,
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio.fields.{42f5fce0-6c85-488c-a1e6-ce2d5d14db86}productName': null,
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio.fields.{154478bd-35f2-4ef1-b0f2-81449e3fb855}portfolioVersionRefId': 10,
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio.fields.{277086ff-1613-4c0b-84e9-9932ba4f19bc}investmentType': null,
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio.fields.{df7e6b6d-508d-4a78-8d12-41372a07944f}isActive': true,
 'recordType!{5bf7f7cb-2b7c-430f-93b1-102a13b4f3af}SRT Portfolio.fields.{1fc0f544-5ee9-4cdf-990a-e365e1a9d247}allocation': fv!item.allocation
 )
 }
 )
 )
 ),
 },
 onError: a!save(local!submissionSuccessful, false)
 ),
 onError: a!save(local!submissionSuccessful, false)
 )
 },
 
 ),
 align: "START",
 marginAbove: "MORE"
 )
 )
 }
 ),

Mathieu Drouin · Answer

Don't think you can put the submitUploadedFiles in the onSuccess of the StartProcess. It needs to be at the root of the saveInto.

Mike Schmitt · Answer

Malleswari T said: i have used submitUploadedFiles function with empty process model to start on its button click 
 Why would you do this? If you're not doing anything with the process model, don't use a!startProcess(). It's not needed for a!submitUploadedFiles() either way.

Mike Schmitt · Answer

Capt_Barbosa said: As it is not supported in task and start form 
 edit: Apologies, I may have been mistaken about this. I will need to investigate further.

Mike Schmitt · Answer

Sorry, you guys may have been right - i'll need to look further into that. Provided the caveat in the documentation is correct, then you'll likely need to stick with your approach wherein you have the user submit from the form and loop back immediately to the form again, after clicking the "Read File" button.