Add issue.remove_field_value()

Complements the existing add_field_value()

Author: nickbroon

jira/resources.py

@@ -882,6 +882,17 @@ def add_field_value(self, field: str, value: str):
         """
         super().update(fields={"update": {field: [{"add": value}]}})
 
+    def remove_field_value(self, field: str, value: str):
+        """Remove a value from a field that supports multiple values, without resetting the existing values.
+
+        This should work with: labels, multiple checkbox lists, multiple select
+
+        Args:
+            field (str): The field name
+            value (str): The field's value
+        """
+        super().update(fields={"update": {field: [{"remove": value}]}})
+
     def delete(self, deleteSubtasks=False):
         """Delete this issue from the server.
 

tests/resources/test_issue.py

@@ -323,6 +323,29 @@ def test_update_with_fielddict(self):
         self.assertEqual(issue.fields.priority.name, "High")
         issue.delete()
 
+    def test_add_remove_field_values(self):
+        issue = self.jira.create_issue(
+            summary="Test issue for updating labels",
+            project=self.project_b,
+            description="Label testing",
+            issuetype=self.test_manager.CI_JIRA_ISSUE,
+        )
+
+        labelarray = ["testLabel1"]
+        fields = {"labels": labelarray}
+
+        issue.update(fields=fields)
+        self.assertEqual(issue.fields.labels, ["testLabel1"])
+
+        issue.add_field_value("labels", "testLabel2")
+        self.assertEqual(issue.fields.labels, ["testLabel1", "testLabel2"])
+
+        issue.remove_field_value("labels", "testLabel1")
+        self.assertEqual(issue.fields.labels, ["testLabel2"])
+
+        issue.delete()
+
+
     def test_update_with_label(self):
         issue = self.jira.create_issue(
             summary="Test issue for updating labels",