Merge muliple columns from resultset dynamically

RE: Merge muliple columns from resultset dynamically

Vinay Kumar Rai — Thu, 12 Oct 2017 18:14:29 GMT

Ok please find the below code, hope this will work

with(
  local!data: {
    {X: "x1",Y: "Y1",Z: "Z1"},
    {X: "x2",Y: "Y2",Z: "Z2"},
    {X: "x3",Y: "Y3",Z: "Z3"},
    {X: "x4",Y: "Y4",Z: "Z4"},
    {X: "x5",Y: "Y5",Z: "Z5"}
  },
  local!DS_ds: a!dataSubset(
    startIndex: 1,
    batchSize: 100,
    totalCount: 5,
    data: local!data,
    identifiers: local!data.X
  ),
  local!propertyName_txts: {
    "X",
    "Z"
  },
 
  
local!DynamicData:
      apply(
       index( local!DS_ds.data,_,{}),
       local!propertyName_txts
      ),
      
apply(
  rule!FormatDetail(
    Index:_,
    Array:local!DynamicData
  ),
  1 + enumerate(local!DS_ds.totalCount)
)      
 
 
)

New Rule

FormatDetail

/*
Inputs
  Index : Number
  Array : AnyType
*/

=with(
  {
    ri!Array[1][ri!Index],
    ri!Array[2][ri!Index] 
  }
  
)

RE: Merge muliple columns from resultset dynamically

Bala K — Thu, 12 Oct 2017 17:16:52 GMT

Hi Vinay, I will be passing the properties X and Y dynamically, it could be X and Z (or) X and Y based on scenarios. I need to do the merge of these dynamically passed properties in the datasubset.

RE: Merge muliple columns from resultset dynamically

Vinay Kumar Rai — Thu, 12 Oct 2017 14:38:44 GMT

Create a new rule :

/*
  Rule Name : FormatDetail
  Input1 : TEXT
  Input2 : TEXT
*/

=with(
  {
    ri!Input1,
    ri!Input2
  }
)

/* Calling rule */

apply(
  rule!FormatDetail(
    _,
    _
 ),
    merge(
     property( local!DS_ds.data,"X",{}),
     property( local!DS_ds.data,"Y",{})
    )
)

RE: Merge muliple columns from resultset dynamically

Bala K — Thu, 12 Oct 2017 13:43:16 GMT

Thanks for your response. I needed below output and I am using 16.2 version.

{{"x1","Y1"},
{"x2","Y2"},
{"x3","Y3"},
{"x4","Y4"},
{"x5","Y5"}}

RE: Merge muliple columns from resultset dynamically

josep — Wed, 11 Oct 2017 22:11:42 GMT

Hello Bbalasubramanik,

which version of Appian are you using?

I don't fully understand what you want to achieve. But I did the test and I got the following:

with(
local!data :{{X:"x1", Y:"Y1", Z:"Z1"},
{X:"x2", Y:"Y2", Z:"Z2"},
{X:"x3", Y:"Y3", Z:"Z3"},
{X:"x4", Y:"Y4", Z:"Z4"},
{X:"x5", Y:"Y5", Z:"Z5"}} ,
local!DS_ds:a!dataSubset(startIndex:1,batchSize:100, totalCount:5, data:local!data, identifiers:local!data.X),
local!propertyName_txts: {
    "X",
    "Y"
  },
  merge(
    apply(
      fn!property(
        local!DS_ds.data,
        _
      ),
      local!propertyName_txts
    )
  )

 )

This is what I Got

Test OutputHide section contents

Time	
2 ms
Type	
List of Variant
Value	
List of Variant: 2 items
    List of Variant: 5 items
        "x1"
        "x2"
        "x3"
        "x4"
        "x5"
    List of Variant: 5 items
        "Y1"
        "Y2"
        "Y3"
        "Y4"
        "Y5"

What are you expecting to get?

This is what I got
{
{"x1", "x2", "x3", "x4", "x5"},
{"Y1", "Y2", "Y3", "Y4", "Y5"}
}

do you want to obtain something like this?

{{"x1","Y1"},
{"x2","Y2"},
{"x3","Y3"},
{"x4","Y4"},
{"x5","Y5"}}

If you are using V17.2 maybe this will help

with(
  local!data: {
    {X: "x1",Y: "Y1",Z: "Z1"},
    {X: "x2",Y: "Y2",Z: "Z2"},
    {X: "x3",Y: "Y3",Z: "Z3"},
    {X: "x4",Y: "Y4",Z: "Z4"},
    {X: "x5",Y: "Y5",Z: "Z5"}
  },
  local!DS_ds: a!dataSubset(
    startIndex: 1,
    batchSize: 100,
    totalCount: 5,
    data: local!data,
    identifiers: local!data.X
  ),
  local!propertyName_txts: {
    "X",
    "Y"
  },
  a!forEach(
    items: local!DS_ds.data,
    expression: {
      with(
        local!tempData: fv!item,
        a!forEach(
          items: local!propertyName_txts,
          expression: with(
            local!propertyName: fv!item,
            property(
              local!tempData,
              local!propertyName
            )
          )
        )
      )
    }
  )
)

Jose Perez