Summation of three numerical fields from Subtask to 1 new field in User Story

Question

Hello,

I have a numeric Field customised in User Story : Sum _Time -Sub-Task,

this US has N Sub-task.

Every  Sub-task  has a Numeric Field : Time-Sub-Task

I want to calculate automatically the sum of Time-Sub-Task of the N Sub-Task in Sum_Time -Sub-Task  ?

How can I do this ?

Thank You

(Sorry for my awful english, thank you)

Sreenivasaraju P · Answer

You can use Jira Misc Custom Fields plugin and calculate the sub task field value on parent ticket

https://marketplace.atlassian.com/apps/27136/jira-misc-custom-fields?hosting=server&tab=overview

for (Issue subtask : issueObject.getSubTaskObjects()) {
 CustomField number=customFieldManager.getCustomFieldObject("customfield_XXXX");
 Double numbervalue=(Double)subtask.getCustomFieldValue(amountField);
 Sum = sum + numbervalue;

}

Alexey Matveev · Answer

Hello,

You would need an add-on for it.

For example, you could use the Power Custom Fields Premium add-on:

https://marketplace.atlassian.com/apps/1210749/power-custom-fields-premium?hosting=server&tab=overview

You could create a sil custom field with a code like this and add this field to the view screen of the Task issue type:

number sum = 0;
string[] keys = subtasks(key);
for(string key in keys){
 #{number field name} = #{number field name} + %key%.#{number field name};
}

This custom field would show the sum of the Number Field custom field for all subtasks of the task.