Convert String into CDT

RE: Convert String into CDT

Ravi Roshan — Mon, 08 Jan 2018 09:32:32 GMT

Hi Vivek,

In similar way you can achieve your result.

load(
local!str: "Name:xyz;age:30;profession:Student",
local!concatedStr: concat(local!str,";"),
local!name: extract(local!concatedStr, "Name:", ";"),
local!age: extract(local!concatedStr, "age:", ";"),
local!profession : extract(local!concatedStr, "profession:", ";"),
{
local!name,
local!age,
local!profession
}
)

RE: Convert String into CDT

viveku3486 — Mon, 08 Jan 2018 07:54:55 GMT

Hello Mike,

I have similar kind of requirement but here my problem is I want to display the value in the form. So lets say if my string is in the form of "Name:xyz;age:30;profession:Student" then I want Name,age and profession to be displayed in different textfields. Is there a way to fetch each one of them separately?

RE: Convert String into CDT

Mike Schmitt — Mon, 27 Nov 2017 12:34:21 GMT

You don't really need a!forEach for this - did you try the code I posted above originally? It would go in its own expression rule, which you could call via apply() in order to loop it over many entries.

RE: Convert String into CDT

rishub — Mon, 27 Nov 2017 12:31:25 GMT

, annap : Actually the expression given by annap did not work for me as we are on 16.3 so foreach function & fv!index is not available to us. Can you please guide how we can use apply or applycomponents or any other expression to get the desired results?

RE: Convert String into CDT

rishub — Mon, 20 Nov 2017 14:31:16 GMT

Thanks Mike & Annap.

RE: Convert String into CDT

Mike Schmitt — Fri, 17 Nov 2017 15:52:15 GMT

(note that this is essentially what I suggested above ;-))

RE: Convert String into CDT

annap — Fri, 17 Nov 2017 08:50:46 GMT

try this, it will help you

load(
local!data: "[success:true,error:,parameters:[BOOKS_CURSOR:[quantity:23,author:Collectif,price:3.74,title:Peppa Pig: Fun at the Fair]; [quantity:7,author:Judith Simanovsky,price:4.99,title:Panda Goes to the Olympics]],result:]",
local!quantity: extract(local!data, "quantity:", ",author"),
local!author: extract(local!data, "author:", ",price"),
local!price: extract(local!data, "price:", ",title"),
local!title: extract(local!data, "title:", "]"),
cast(
typeof(
{
type!Books()
}
),
a!forEach(
local!quantity,
{
quantity: local!quantity[fv!index],
author: local!author[fv!index],
price: local!price[fv!index],
title: local!title[fv!index]
}
)
)
)

RE: Convert String into CDT

rishub — Fri, 17 Nov 2017 00:08:30 GMT

Colton Beck When I am trying the data that I get from rule in the expression by copying the data like you have done, it works but when I use local!value in that expression it gives me blank result.

RE: Convert String into CDT

Mike Schmitt — Thu, 16 Nov 2017 20:40:45 GMT

I believe you need to use the extract() function. I suggest making a modular expression rule specifically to handle this conversion, for ease of access and updating in the future. I've written one previously to translate the results of the "getprocessmodeldetailsbyuuid()" plug-in function into dictionary, and it works fairly well.

The following code assumes you will create it as an expression rule and the ri! will be the string (and that if at any point you want to do multiple book strings, you'll apply() this rule over the list).

with(
  local!quantity: extract(ri!rawText, "quantity:", ",author"),
  local!author: extract(ri!rawText, "author:", ",price"),
  local!price: extract(ri!rawText, "price:", ",title"),
  local!title: extract(ri!rawText, "title:", "]"),

  {
    author: local!author,
    title: local!title, 
    quantity: local!quantity,
    price: local!price
  }
)

In this example I establish each value as its own with() variable before wrapping up everything in a dictionary to be returned at the end. This might seem slightly overcomplicated but separating the processing in such a way helps if you ever decide the dictionary names should be different, or if one particular field value needs pre-processing before being returned, etc.

RE: Convert String into CDT

Colton Beck — Thu, 16 Nov 2017 19:40:50 GMT

It should be formatted as below, and your label names should match your CDT field names:

cast(
    typeof({type!Book()}),
        {{quantity:23,author:"Collectif",price:3.74,title:"Peppa Pig: Fun at the Fair"},
        {quantity:7,author:"Judith Simanovsky",price:4.99,title:"Panda Goes to the Olympics"}})

Let me know if that works for you.

RE: Convert String into CDT

rishub — Thu, 16 Nov 2017 19:34:36 GMT

Colton Beck I tried to use it like

cast(typeof(type!Book),local!value)

Here Book is my CDT & local!value is
[success:true,error:,parameters:[BOOKS_CURSOR:[quantity:23,author:Collectif,price:3.74,title:Peppa Pig: Fun at the Fair]; [quantity:7,author:Judith Simanovsky,price:4.99,title:Panda Goes to the Olympics]],result:]

But this is giving error:

Expression evaluation error at function 'cast' [line 15]: Could not cast from Text to Type. Details: CastInvalidCould not cast from Text to Type. Details: CastInvalid

RE: Convert String into CDT

Colton Beck — Thu, 16 Nov 2017 19:06:26 GMT

Where local!value contains your key:value parameters.

RE: Convert String into CDT

Colton Beck — Thu, 16 Nov 2017 19:03:52 GMT

Look into the cast() function.
Something like this should work:

cast(
    typeof(type!Typeofyourcdt),
        local!value)

RE: Convert String into CDT

rishub — Thu, 16 Nov 2017 19:00:38 GMT

Puspendu Pal Can you please guide how can I do that? The result is coming as single string.

RE: Convert String into CDT

Puspendu Pal — Thu, 16 Nov 2017 18:53:52 GMT

Hello,

Your result value is empty. But you should be able to use the index function recursively to get the data.