MT#33006 tracker: resize mapper_type field

> django.db.utils.DataError: value too long for type character varying(15)

Change-Id: Ie6e9822177f04638f4b86a39b10208cb139ac758

tracker/migrations/0002_alter_trackermapper_mapper_type.py

@@ -0,0 +1,26 @@
+# Generated by Django 3.2.15 on 2022-09-15 06:57
+from django.db import migrations
+from django.db import models
+
+import tracker.conf
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("tracker", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="trackermapper",
+            name="mapper_type",
+            field=models.CharField(
+                choices=[
+                    (tracker.conf.MapperType["ISSUE"], "Issue"),
+                    (tracker.conf.MapperType["TASK"], "Task"),
+                ],
+                max_length=50,
+            ),
+        ),
+    ]

tracker/models.py

@@ -79,7 +79,7 @@ class MantisInfo(TrackerInfo):
 
 class TrackerMapper(models.Model):
     mapper_type = models.CharField(
-        max_length=15, choices=[(tag, tag.value) for tag in MapperType]
+        max_length=50, choices=[(tag, tag.value) for tag in MapperType]
     )
     mantis_id = models.CharField(max_length=50, null=False, unique=True)
     workfront_id = models.CharField(max_length=50, null=False, unique=True)