IS IT POSSIBLE TO Upload MULTIPLE DOCUMENTS WITH DYNAMIC UPLOAD COMPONENT

Hi there,

There are 2 approaches to the problem statement. 

1. Use one file upload field to upload multiple documents instead of creating multiple(dynamic) file upload components. But as I see the screenshots, looks like every upload field has a different label so I am not sure if you can use this approach. 
2. Continue using a!forEach loop to render multiple file upload fields. In this, you can use local!documentList variable to generate a list of null values of the same length and then use every index of it to save to the corresponding file. I will also add a code snippet below for better understanding. And at the end, when a user submits the form, you can save that local to RI. 

Welcome to the Appian community. As in any other online community, writing in UPPER case means shouting. Not sure whether that was your intention.

thank you harshit for your response , can you add the code snippet for better understanding ? 

thank you 

not it wasnt , i apologize

a!localVariables(
  local!documentList: {1,2,3,4},
  local!documentValues: a!forEach(
    items: local!documentList,
    expression: null()
    
  ),
  {
    a!forEach(
      items: local!documentList,
      expression: a!fileUploadField(
        maxSelections: 1,
        value: local!documentValues[fv!index],
        saveInto: local!documentValues[fv!index]
      )
    ),
    a!buttonLayout(
      primaryButtons: a!buttonWidget(
        label: "SUBMIT",
        saveInto: {
          a!save(
            ri!documentValues,
            local!documentValues
          )
        }
      )
    )
  }
)

Thank you very much  Harshit Bumb ,

i think that i understand what you did , i will to that .... but the thing is that after that ,  i need to put those document in table in db

how can i add for example thoses documents in an of rule input document ( which is document CDT ) ? 

a cdt provides the possibility to make values "multiple"
(checkbox after the type)

-> the issue might be, as you create the db field already, you need perhaps to alter the table and drop the column and then publish it again. Sometimes there ar just issue if you change conditions of cdt parameters afterwards (which equals db columns)
In general try to use more specific names if possible. if you document is a bill then call it like that, if its an application then call it "application".
second hint: if you use "multiple" cdt parameter then name it multiple like "documents","dates",.... so everyone else who is reading your code can understand directly that this a multiple parameter

I'm working on something similar and able to achieve it for single upload. I'm stuck with what if each generated file uploads accept multiple files.

a!localVariables(
  local!documentList: {
    a!map(id: 1, label: "F1"),
    a!map(id: 2, label: "F2"),
    a!map(id: 3, label: "F3"),
    a!map(id: 4, label: "F4")
  },
  local!documentValues: a!forEach(
    items: local!documentList,
    expression: 'recordType!{24213204-5e90-4143-9ed4-22c983c605f9}HSS Document Detail'()
  ),
  {
    a!forEach(
      items: local!documentList,
      expression: a!localVariables(
        local!documentType: fv!item.id,
        a!fileUploadField(
          label: fv!item.label,
          maxSelections: 2,
          value: index(
            index(
              local!documentValues,
              'recordType!{24213204-5e90-4143-9ed4-22c983c605f9}HSS Document Detail.fields.{22300559-0983-47ad-b74c-1ad6b023bc38}appianDocumentId',
              null
            ),
            fv!index,
            null
          ),
          saveInto: {
            a!save(
              target: local!documentValues[fv!index],
              value: a!forEach(
                items: save!value,
                expression: 'recordType!{24213204-5e90-4143-9ed4-22c983c605f9}HSS Document Detail'(
                  'recordType!{24213204-5e90-4143-9ed4-22c983c605f9}HSS Document Detail.fields.{22300559-0983-47ad-b74c-1ad6b023bc38}appianDocumentId': fv!item,
                  'recordType!{24213204-5e90-4143-9ed4-22c983c605f9}HSS Document Detail.fields.{65eadee6-cc6f-4a21-8914-a4e3ecc92aa9}documentType': local!documentType
                )
              )
            )
          }
        )
      )
    ),
    a!buttonLayout(
      primaryButtons: a!buttonWidget(
        label: "SUBMIT",
        saveInto: {
          a!save(ri!documents, local!documentValues)
        }
      )
    )
  }
)