Apply a function on a field into Custom Report

[aben141]

Hi,

Thank you for this wonderful JA plugin. I am very grateful.

What I do
I build a custom report, with some common fields like (Key, Summary, Priority), but also with "labels" field.

What I want to do
My objective at the end is to be able to find one specific label and rework it a bit (like cutting 3 first digit on this kind of thing).
So first step is to find the label I want and second step is to modify it.

labels field is a specific field that is an array of String, and unfortunatelly, you can't order labels as you want, Jira is reorganizing the labels as he wants, meaning that I can't assume that the given label I want to take will be 2nd position every time.

My question is :

1. can I apply a full JS function into "use expression" feature, that will allow me to include conditions ?
   I tried but I didn't achieve to get something other than empty field.
   if (this.at(1).slice(3) === 'DevOps') { return 'toto'; }

2. Is there any other way you advice me to take in order to perform what I want ?

Thank

[shridhar-tl]

Hi @aben141 - Thank you for reaching out to me.

Here is an example of how you can achieve what you need with a single line expression:

Example 1 - To render only one label:- (this.filter(func('val.includes("DevOps")',['val']))[0] || "").replace("DevOps",'toto')
Example 2 - To render all labels:- this.map(func('val.replace("DevOps","toto")',['val']));

The key here is using func as an alternate for arrow function which takes 3 argument as follows:
1: the sub expression which should be executed
2: an array of argument names which would be passed to this expression
3: An object containing any other variables which is available in current expression scope to be passed to sub expression scope

I am trying to see if I can get the arrow functions working within expressions, but until it is supported, this func should do the trick.

To answer your question about using full function: NO, as of now though report builder supports providing multiline expression, the library I use to parse and execute the expression is not supporting that feature. Hence as of now multi line expressions are not supported.

This expression is supported only from JA v2.45. So if you are using v2.44 or older, you can try this expression with web version for now and later you can upgrade your extension to v2.45 and use it.

[aben141]

Thank a lot, it works.
unfortunately i'm not familiar with this syntax, I will try to deep dive.
How would you add "alternative if " in this function ? (Like else if) ? what is the purpose of [0] in the first example ?

[shridhar-tl]

Hi, As I mentioned, only single line expressions are supported as of now. Hence only nested JavaScript ternary operator can be used for conditional expressions instead of else if statements. How ever if would turn more complex if there are multiple nesting. In above example I'm not sure where I can show example for that. Let me know if there are specific use case.

The purpose of [0] is to fetch the first item of array returned by filter function. This is just in case if you want to fetch single item. If that is not your use case, dont worry much about it.

[shridhar-tl]

This issue has been resolved long back and hence closing this ticket. Please feel free to reopen it if you have any other queries.