2 field values multiply

[john 7]

1.uesing script runner

2.create a Script Fields:"cost"

3.Custom 2 fields:number(num type),price(num)

how i can get the cost value using groovy script, once we have updated the filed values pirce, number then immediately calculate the field value cost.

this is my scprit:

import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.issue.Issue

CustomFieldManager customFieldManager = ComponentAccessor.getCustomFieldManager();
def price = issue.getCustomFieldValue(customFieldManager.getCustomFieldObjectByName("price"))
def num = issue.getCustomFieldValue(customFieldManager.getCustomFieldObjectByName("num")
if (price) {
 return price * num)
}
else {
 return null
}

[Nic Brough -Adaptavist-]

The field values you are pulling back are objects, not simple numbers.  You need to convert the contents to numbers before you can multiply them together (and bear in mind they might be nulls too, which you'll want to capture and handle)

[john 7]

but price and numbers fields is number type, still need convert???

[Nic Brough -Adaptavist-]

Look at the error message you showed in your original before you changed the question - the error was saying that the calls to get the field data had returned an object, not a number.

So yes, you need to convert the objects returned into numbers.  (Trying to multiply objects tends not work - yes the  objects you get from the fields might be "4" and "5", but they might also be "banana" and "apple", and there's no way to know what you might want from multiplying those together)