how to add item in list of maps

Certified Associate Developer

Hello,

i have a list of maps,

how do you add new map value?

and 

how do you update an index of repective value map?

this is the rule code (but it do not work):

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

a!localVariables(
local!campos: a!forEach(
items: ri!map,
expression: fv!item.sistema = ri!sistema
),

local!indice: where(local!campos,-1),

local!resultado:if(
local!indice > 0,
if(
a!isNullOrEmpty(ri!permiso),
remove(ri!map,local!indice),
/*update value in list*/
a!update(ri!map,local!indice,a!map(sistema: ri!sistema,permiso:ri!permiso))
),
/*add map to list*/
a!update(ri!map,length(ri!map)+1,a!map(sistema: ri!sistema,permiso:ri!permiso))
),
local!resultado
)

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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Parents
  • Your logic for updating an index in a list of Map seems to be fine, for adding a map to list you can simply use append() function.

    Take reference from the sample code snippet.

    a!localVariables(
      local!map: {
        a!map(name: "Test", class: 10),
        a!map(name: "Test1", class: 10),
        a!map(name: "Test2", class: 10),
        a!map(name: "Test3", class: 10)
      },
      local!update: a!update(
        local!map,
        { 1, 2 },
        {
          a!map(name: "TEst100", class: 12),
          a!map(name: "TEst200", class: 11)
        }
      ),
      local!add: append(
        local!map,
        {
          a!map(name: "Test5", class: 12),
          a!map(name: "Test6", class: 12)
        }
      ),
      local!add
    )

Reply
  • Your logic for updating an index in a list of Map seems to be fine, for adding a map to list you can simply use append() function.

    Take reference from the sample code snippet.

    a!localVariables(
      local!map: {
        a!map(name: "Test", class: 10),
        a!map(name: "Test1", class: 10),
        a!map(name: "Test2", class: 10),
        a!map(name: "Test3", class: 10)
      },
      local!update: a!update(
        local!map,
        { 1, 2 },
        {
          a!map(name: "TEst100", class: 12),
          a!map(name: "TEst200", class: 11)
        }
      ),
      local!add: append(
        local!map,
        {
          a!map(name: "Test5", class: 12),
          a!map(name: "Test6", class: 12)
        }
      ),
      local!add
    )

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