Count times a string appears in a label

[Menia Laina]

Hello, I'm trying to count how many dates of format 

YYYY_Tx

exist in a Labels field and save this as a numeric value in another field. I try the below, but I keep getting erros. Any help on what is wrong? So the Labels has: 2024_T3 , 2025_T1 , etc

The error I get: 

Unable to render smart values when executing this rule:

Failed to get value for issue.Labels.match('.*(\\d{4}_T\\d).*').size: { "fields": { "Overall effort": "{{issue.Labels.match('.*(\\d{4}_T\\d).*').size}}" } }

the expression I put in the edit issue field (to update the Overall effort numeric field): 

{ "fields": { "Overall effort": "{{issue.Labels.match('.*(\\d{4}_T\\d).*').size}}" } }

[Renata_Getint]

Hi @Menia Laina

To count how many labels in the format YYYY_Tx exist in your Labels field and save the count in another field, your current smart value expression is close but has a slight issue.

The Fix

The match function is being applied incorrectly in your smart value expression. Instead of using .match to count occurrences, you should use .filter to isolate the labels matching the desired format and then count them using .size.

Here’s the corrected expression:

{
"fields": {
"Overall effort": "{{issue.labels.filter(label -> label.match('\\d{4}_T\\d')).size}}"
}
}

Explanation

• issue.labels: Refers to the Labels field, which is a list of strings.
• .filter(label -> label.match('\\d{4}_T\\d')): Filters the labels, keeping only those matching the format YYYY_Tx using a regex pattern.
• .size: Counts the number of matching labels.

Steps to Implement

1. Edit your automation rule.
2. Use the above expression in the "Edit issue" action for updating the Overall effort field.
3. Test the rule with sample data to ensure it works as expected.

Let us know if you need further clarification or additional help! At Getint, we specialize in integrations and optimizing workflows, so feel free to reach out for guidance.

[Bill Sheboy]

Hi @Renata_Getint 

What is the source of the content you posted?

If it is from a bot / AI-tool, please see the community guidelines regarding the disclosure of such content in your post's wording:

https://community.atlassian.com/t5/custom/page/page-id/rules-of-engagement

Kind regards,
Bill

[Janice]

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[Bill Sheboy]

Hi @Menia Laina -- Welcome to the Atlassian Community!

The problem is the use of single-quotation marks, as the match() function expression takes double-quotation marks.

What is the type of your field: numeric or text?

If the field is numeric, please change the expression to this:

{
  "fields": {
    "Overall effort": {{issue.Labels.match(".*(\\d{4}_T\\d).*").size}}
  } 
}

If the field is text, either:

• first store the result with Create Variable and then use that variable in the expression
• or convert the value to text with format() and then add asJsonString to the end to wrap it in quotation marks.

Kind regards,
Bill