Save only updated data from a given array

RE: Save only updated data from a given array

JayaPrakash Ravipati — Tue, 21 Jan 2025 10:43:52 GMT

Can you elaborate your scenario some more and you are trying it in interface or expression rule.

difference will work

RE: Save only updated data from a given array

madhup0003 — Tue, 21 Jan 2025 10:41:32 GMT

yes i need only that data which is modified in local!finalGirddata, but i can't use grid for that even difference will not work

RE: Save only updated data from a given array

JayaPrakash Ravipati — Tue, 21 Jan 2025 10:30:28 GMT

HI madhup0003 ,

As per my understanding you need only the data that is modified to store. You can use the difference() to get the modified data.

The below code might help.

a!localVariables(
  local!options:{"Yes","No"},
  local!originalGridData:a!refreshVariable(
    value: {
      a!map(id:"1",date:date(2025,1,15)),
      a!map(id:"1",date:date(2025,1,16)),
      a!map(id:"1",date:date(2025,1,14)),
      a!map(id:"2",date:date(2025,1,17)),
      a!map(id:"2",date:date(2025,1,15)),
    },
    refreshOnReferencedVarChange: false()
  ),
  local!changedData,
  local!finaldata:local!originalGridData,
  {
  a!gridLayout(
    headerCells: {
      a!gridLayoutHeaderCell(label:"Id"),
      a!gridLayoutHeaderCell(label:"Date"),
    },
    columnConfigs: {
      a!gridLayoutColumnConfig(width: "DISTRIBUTE"),
      a!gridLayoutColumnConfig(width: "DISTRIBUTE"),
    },
    rows: a!forEach(
      items: local!finaldata,
      expression: a!gridRowLayout(
        contents: {
         a!textField(
           value: fv!item.id,
           saveInto: fv!item.id
         ),
         a!dateField(
           value: fv!item.date,
           saveInto: fv!item.date
         )
        }
      )
    ),
  ),
  a!buttonArrayLayout(
    buttons: {
      a!buttonWidget(
        label:"Save",
        saveInto: {
          a!save(local!changedData,difference(local!finaldata,local!originalGridData))
        }
      )
    }
  ),
  /*Changed data*/
  a!gridField(
    data: local!changedData,
    columns: {
      a!gridColumn(
        label:"Id",
        value: fv!row.id
      ),
      a!gridColumn(
        label:"Date",
        value: fv!row.date
      )
    },
    borderStyle: "STANDARD"
  )
  }
)

RE: Save only updated data from a given array

madhup0003 — Tue, 21 Jan 2025 08:39:03 GMT

thanks i am trying with given use case.

RE: Save only updated data from a given array

Stefan Helzle — Tue, 21 Jan 2025 08:02:18 GMT

Sure, but remove does not do that. It removes an item from a list by its index. You do not pass the list, but the item you iterate on.

Find an example here: https://docs.appian.com/suite/help/24.4/Function_Recipes.html#extract-a-list-from-an-entitydata-array-of-the-data-written-to-a-single-entity

RE: Save only updated data from a given array

madhup0003 — Tue, 21 Jan 2025 07:47:10 GMT

i am trying to remove those ids which are not updated in finalgriddata.

RE: Save only updated data from a given array

Stefan Helzle — Tue, 21 Jan 2025 07:45:02 GMT

That condition looks plausible, but what do you try to do with that remove()?

RE: Save only updated data from a given array

Stefan Helzle — Tue, 21 Jan 2025 07:42:02 GMT

RE: Save only updated data from a given array

madhup0003 — Tue, 21 Jan 2025 07:36:06 GMT

Hi Stefan Helzle,

i have tried this, but it's not working

a!save(local!test,
a!forEach(
items: local!finalgridData,
expression: if(
fv!item.endDate=index(local!originalData.data,
wherecontains(touniformstring(fv!item.endDate),
touniformstring(local!originalData.data.endDate)),{}).endDate,
remove(fv!item, index(local!originalData,
wherecontains(touniformstring(fv!item.referenceNumber),touniformstring(local!originalData.data.referenceNumber), ),{})),
fv!item

)),

)

RE: Save only updated data from a given array

Stefan Helzle — Tue, 21 Jan 2025 07:02:53 GMT

What did you try so far? I mean, this is not more than a foreach() on the your final data, and a condition to either include or exclude the data from the resulting list.