Make MapUnit a dropdown

app/migrations/0036_alter_mountainrange_map_unit.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.5 on 2021-11-28 06:57
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0035_rename_range_mountainrange'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mountainrange',
+            name='map_unit',
+            field=models.TextField(blank=True, choices=[('Aggregated', 'Aggregated'), ('Basic', 'Basic'), ('No', 'No')], null=True),
+        ),
+    ]

app/models.py

@@ -77,6 +77,11 @@ class RangeType(models.Model):
 
 
 class MountainRange(models.Model):
+    MAP_UNIT_CHOICES = (
+        ('Aggregated', 'Aggregated'),
+        ('Basic', 'Basic'),
+        ('No', 'No'),
+    )
     id = models.AutoField(primary_key=True)
     source_id = models.IntegerField(blank=True, null=True)
     gmba_id = models.TextField(blank=True, null=True)
@@ -89,7 +94,7 @@ class MountainRange(models.Model):
     range_name_language = models.ForeignKey(Language, models.DO_NOTHING, blank=True, null=True, to_field='id')
     mother_range = models.ForeignKey("self", models.DO_NOTHING, blank=True, null=True, to_field='id')
     feature = models.ForeignKey(RangeType, models.DO_NOTHING, blank=True, null=True, to_field='id')
-    map_unit = models.TextField(blank=True, null=True)
+    map_unit = models.TextField(blank=True, null=True, choices=MAP_UNIT_CHOICES)
     level = models.TextField(blank=True, null=True)
     level_text = models.TextField(blank=True, null=True)
     level_1 = models.TextField(blank=True, null=True)