Common reusable function, Save and Submit button

Hello,

I am trying to achieve below 2 things and need your help please. My form consists of 5 fields (ClientName, SubmittedBy, SubmittedDate, isSaved, isSubmit) which will be save into to DB table.

1. Form is having 2 buttons save and submit. On click of Save, it should save all the 5 fields with isSubmit=false in the database and the form should not be closed. On click of Submit, the isSubmit=true and the form is closed.

2. How to create a reusable function which is called from both Save and Submit button. That function should have the a!save code which will save the fields accordingly. The below 3 lines are called in both the buttons and based on from which button is called, it should save fields.

                             fn (isSubmitClick) {                          

                              a!save(ri!isSaved, true),
                              a!save(ri!txtSubmitDate, local!submittedDate),
                              a!save(ri!txtSubmittedBy, local!userSubmitted),
                              if(isSubmitClick, a!save(ri!isSubmit, true), a!save(ri!isSubmit, false)) /* This line is only needed in the Save button */*

                              }          
      

FULL CODE:

a!localVariables(
local!userSubmitted: "Tester",
local!submittedDate : Today(),
a!sectionLayout(
label: "Section",
contents: {
a!textField(
label: "Enter Client Name",
labelPosition: "ABOVE",
value: {ri!txtClientName},
saveInto: {ri!txtClientName},
refreshAfter: "UNFOCUS",
validations: {}
),
a!buttonArrayLayout(
buttons: {
a!buttonWidget(
label: "Cancel",
style: "NORMAL"
),
a!buttonWidget(
label: "Save",
style: "NORMAL",
saveInto:{
a!save(ri!isSaved, true),
a!save(ri!txtSubmitDate, local!submittedDate),
a!save(ri!txtSubmittedBy, local!userSubmitted),
}
),
a!buttonWidget(
label: "Submit",
style: "PRIMARY",
saveInto:{
a!save(ri!isSaved, true),
a!save(ri!txtSubmitDate, local!submittedDate),
a!save(ri!txtSubmittedBy, local!userSubmitted),
a!save(ri!isSubmit, true),
},
submit: true
)
},
align: "START"
)
}
)
)

Screen: 

Thanks,