Is there a way to map Jira labels and categories (custom field) between two Jira instances?

General Questions
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Originally asked by Oliver Robillo on 13 September 2019 (original question)

We’re using Jira Software Cloud and Exalate. Is there a way to map labels (built-in field) and categories (custom field) between two Jira instances? We’d like to sync issues from one external Jira instance where they don’t use our custom-field categories, and map the labels they use to our categories.

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Answer by Francis Martens (Exalate) on 13 September 2019

Hi Oliver Robillo

Thanks for raising the question in the community.

The use case you mention can be implemented as follows:

Send the labels by including them into the message

replica.labels = issue.labels

Process the incoming message

Here you will have to map the incoming label to the category

An example where there is only one label to process

def labelMap = [
    "Incoming Label 1" : "Category 1",
    "Incoming Label 2" : "Category 2",
    "Incoming Label 3" : "Category 3",
]

/* 
** Map the label to the target category, and revert to default if not found
** replica.labels is an array of labels
** replica.labels.first is the first label in the array
** replica.labels.first.label is the string that represents the label itself
** replica.labels?.first?.label
**     the question marks avoid nullpointerexceptions
*/

def firstLabel = replica.labels?.first?.label

/*
** if the firstlabel is not found in the labelMap, default to DefaultCategory
*/
def targetCategory = labelMap[firstLabel] ?: "DefaultCategory"


/*
** Assign the found label to the category drop down custom field
*/

issue.customFields."Category".value = targetCategory

Let me know if this helps

Comments:

Oliver Robillo commented on 16 September 2019

Thanks very much for this, Francis! I will give this a try.

Oliver Robillo commented on 16 September 2019

Hi user-50445

What if there were multiple labels in an issue (which is often the case), and I needed to look for one particular label from the array so that I could map that to our category?

Francis Martens (Exalate) commented on 16 September 2019

You can traverse the labels using something like

def targetLabel = replica.labels.find { it.label == "MyLabel" }
def targetCategory = labelMap[targetLabel] ?: "DefaultCategory"

If you provide some more details, we can provide some more examples

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