Simplify role

app/admin.py

@@ -354,4 +354,3 @@ admin.site.register(RangesPeople, PeopleRangeAdmin)
 admin.site.register(TaxonRange, TaxonRangeAdmin)
 admin.site.register(PeopleResource, PeopleResourceAdmin)
 admin.site.register(RangeCountry, RangeCountryAdmin)
-admin.site.register(Role)

app/migrations/0033_auto_20211128_0551.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.2.5 on 2021-11-28 05:51
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0032_alter_person_search_name'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='peopleresource',
+            name='p_r_role',
+        ),
+        migrations.AlterField(
+            model_name='peopleresource',
+            name='role',
+            field=models.TextField(blank=True, choices=[('', ''), ('Author', 'Author'), ('Chair', 'Chair'), ('Contributor', 'Contributor'), ('Coordinator', 'Coordinator'), ('Co - Chair', 'Co - Chair'), ('Editor', 'Editor'), ('Head', 'Head'), ('Member', 'Member'), ('Project partner', 'Project partner'), ('SSC', 'SSC')], null=True),
+        ),
+        migrations.DeleteModel(
+            name='Role',
+        ),
+    ]

app/models.py

@@ -737,20 +737,24 @@ class TaxonRange(models.Model):
         return self.taxon if self.taxon else '--'
 
 
-class Role(models.Model):
-    id = models.AutoField(primary_key=True)
-    role = models.TextField(blank=True, null=True)
-
-    def __str__(self):
-        return self.role if self.role else '--'
-
-
 class PeopleResource(models.Model):
+    ROLES_CHOICES = (
+        ('', ''),
+        ('Author', 'Author'),
+        ('Chair', 'Chair'),
+        ('Contributor', 'Contributor'),
+        ('Coordinator', 'Coordinator'),
+        ('Co - Chair', 'Co - Chair'),
+        ('Editor', 'Editor'),
+        ('Head', 'Head'),
+        ('Member', 'Member'),
+        ('Project partner', 'Project partner'),
+        ('SSC', 'SSC'),
+    )
     id = models.AutoField(primary_key=True)
     person = models.ForeignKey(Person, models.DO_NOTHING, blank=True, null=True)
     resource = models.ForeignKey(Resource, models.DO_NOTHING, blank=True, null=True)
-    role = models.TextField(blank=True, null=True)
-    p_r_role = models.ForeignKey(Role, models.DO_NOTHING, blank=True, null=True)
+    role = models.TextField(blank=True, null=True, choices=ROLES_CHOICES)
 
     def __str__(self):
         return self.person.full_name if self.person else ' -- '