Requesting for logic

Question

I have two values consider type is CDT:

local!oldData: {
customer: "oldCustomer",
location:"Hyd",
supplier: "ABC"
},

local!updatedData: {
customer: "newCustomer",
location: "Hyd",
supplier: "DEF"
}

I want to give response only the updated values like follows:

fieldName: customer
oldValue: oldCustomer,
newValue: newCustomer,

fieldName: supplier,
oldValue: ABC,
newValue: DEF

Can anyone please help me to build logic for it.

Stefan Helzle · Accepted Answer

The a!keys() function gives you the list of keys in your dictionary. Use a foreach to loop on that list and compare the two values from each dictionary. Pretty straight forward... 
 Give it a try and come back when you have something working.

Harshit Bumb (Appyzie) · Answer

community.appian.com/.../cdt-diff-utilities

Shukur Shaik · Answer

a!localVariables(
 local!oldCargo: cast(
 typeof(
 'type!{urn:com:appian:types:peg:car}PEG_CAR_Cargo'()
 ),
 rule!PEG_CAR_QRY_getCargo(cargoIds: ri!cargoId)
 ),
 local!newCargo: cast(
 typeof(
 'type!{urn:com:appian:types:peg:car}PEG_CAR_Cargo'()
 ),
 index(ri!formattedData, "Cargo", null)
 ),
 local!updatedFields: a!keys(local!newCargo),
 a!forEach(
 local!updatedFields,
 a!localVariables(
 local!field: fv!item,
 local!oldValue: local!oldCargo[local!field],
 local!newValue: local!newCargo[local!field],
 if(
 local!oldValue <> local!newValue,
 a!map(
 "fieldName": local!field,
 "oldValue": local!oldValue,
 "newValue": local!newValue
 ),
 null
 )
 )
 )
) Thank you | @harshit bump

Requesting for logic

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