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Use case library

JWT expression editor

JWT expression parser functions

JWT workflow functions

JWT remote actions

JWT automation rules

JWT calculated fields

JWT calendars

JWT properties

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UI Text Box
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Use case

This calculated field returns the time left before an issue is due, if a due date has been set.


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UI Steps


UI Step

Create a new Calculated Number Field (by JWT) custom field and name it properly.

UI Text Box
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Providing a description will help you to identify what the custom field does but this step is optional



UI Step

Parser expression

Add the following expression:

Code Block
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titleMath expression for Calculated number field:
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{issue.dueDate} != null ? max({issue.dueDate} - {system.currentDateTime}, 0) : null


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UI Text Box
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To achieve this, the following functions are used:

  • Conditional operator
  • max(list) is used to avoid returning a negative duration when the Due date has passed.




UI Step

Display format

UI Steps


UI Step

Choose Duration as Content type


UI Step

Choose Short as Duration display format

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UI Text Box
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For this use case the format duration was chosen, since the numeric value being calculated, a number of milliseconds, represents a time duration.

This way the value is represented like 2d 9h 43m instead of a single number.





UI Step

Check the parameter Uninitialized when calculated value is zero

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This parameter is set to stop calculation once the Due Date has been reached.





UI Step

Add the field to the relevant view screens.

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Remember: All calculated fields are read-only and cannot be manually updated on a create or edit screen.



UI Step

Check the results

Once configured and added to an issue screen, the result will look like this:

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Related use cases

Page properties report
headingsField type, JWT feature, Label
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cqllabel = "calculated-field" and space = "JWTSDC" and ancestor = "27066672"

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DECADIS:Contact support
DECADIS:Contact support
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JWT feature

Field typeNumber
Parser functionsmax()
Label