Validators will prevent the user from transitioning an issue in Jira from one status to another unless the conditions for the validation are met. Validators can be used to ensure data is entered into a custom field before the user can continue, validating the format of that data, or checking some other aspect about the user or issue before allowing the transition to complete.

The templates will create this validation process by adding a new validation script to an existing workflow transition within Jira.

Setting up the Validator Templates

Because the validation script needs to live in an existing workflow transition the first two steps to creating a validation script template will be selecting the workflow and transition for where the validation should be place.

Sample validator template configuration

If you are unsure which workflow to use an easy way to check is through the “view workflow” link that will present on any issue in Jira. Make sure you use an issue for the project and issue type you wish to add the validation to.

This “view workflow” link may not always be present due to permission settings. You may need to look in the project settings in order to determine which workflow you should select.

NOTE: Some scripts will rely on a transition screen being present in the selected transition. See the example below:

Testing the Script

Testing the script is as simple as attempting to complete the transition without a comment present. In the example below, notice that the message text that was in script gets displayed to the user when the transition.

Templates

Comment

A comment needs to be entered in the current transition screen in order for the user to complete the transition.

Inputs

Name	Required	Description
Description	NO	The description text will be added to a comment at the head of the script so other users can be informed of the purpose of the script.

Requires transition screen: YES

Script

string errorMsg = "You must enter a comment!";
if(!hasInput("comment")) {
   return false, "comment", errorMsg;
}

NOTE: Because this script uses the hasInput function it requires a transition screen. The hasInput function is specifically designed to check the inputs of custom fields on transition screens.

Field has value

Required field must have a value in the current transition screen in order for the user to complete the transition.

Inputs

Name	Required	Description
Customfield	YES	The custom field for which the validator is checking the presence of a value.
Description	NO	The description text will be added to a comment at the head of the script so other users can be informed of the purpose of the script.

Requires transition screen: YES

Script

string errorMsg = "The field must have a value!";
if(!hasInput("customfield_10626")) {
   return false, "customfield_10626", errorMsg;
}

NOTE: The custom field id (customfield_10626) is an example, the id of custom fields will be unique for every Jira instance. To check the id for a custom field see more information about the Custom Field Usage tool included in Power Scripts.

NOTE: Because this script uses the hasInput function it requires a transition screen. The hasInput function is specifically designed to check the inputs of custom fields on transition screens.

Issue has subtasks

Current issue must have subtasks in order for the user to complete the transition.

Inputs

Name	Required	Description
Description	NO	The description text will be added to a comment at the head of the script so other users can be informed of the purpose of the script.

Requires transition screen: NO

Script

string errorMsg = "Issue must have subtasks!";
if(size(subtasks(key)) == 0) {
    return false, errorMsg;
}

Linked issues in certain status

All linked issues with the given link type should be in a certain status in order for the user to complete the transition.

Inputs

Name	Required	Description
Link Type	YES	The name of the link type that should be linked to the issue before it may be transitioned.
Status	YES	The workflow status name to apply the validation script to.
Description	NO	The description text will be added to a comment at the head of the script so other users can be informed of the purpose of the script.

Requires transition screen: NO

Script

Parent issue in certain status

The parent of the issue should be in a certain status in order for the user to complete the transition.

Inputs

Name	Required	Description
Status	YES	The status the parent must be set to in order for the transition to be allowed to complete.
Description	NO	The description text will be added to a comment at the head of the script so other users can be informed of the purpose of the script.

Requires transition screen: NO

Script

Subtasks issues in certain status

All the subtasks of the current issue should be in a certain status in order for the user to complete the transition.

Inputs

Name	Required	Description
Status	YES	The status that all subtasks must be in before the transition is allowed to complete.
Description	NO	The description text will be added to a comment at the head of the script so other users can be informed of the purpose of the script.

Requires transition screen: NO

Script

Contents

1 Setting up the Validator Templates
2 Testing the Script
3 Templates
- 3.1 Comment
- 3.2 Field has value
- 3.3 Issue has subtasks
- 3.4 Linked issues in certain status
- 3.5 Parent issue in certain status
- 3.6 Subtasks issues in certain status