feat: add organisation questions and admin pages

See #76

people/migrations/0035_add_organisation_questions.py

@@ -0,0 +1,61 @@
+# Generated by Django 2.2.10 on 2021-02-23 13:40
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('people', '0034_remove_personanswerset_disciplines'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='OrganisationQuestion',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('version', models.PositiveSmallIntegerField(default=1)),
+                ('text', models.CharField(max_length=255)),
+                ('is_multiple_choice', models.BooleanField(default=False)),
+                ('allow_free_text', models.BooleanField(default=False)),
+                ('order', models.SmallIntegerField(default=0)),
+                ('answer_is_public', models.BooleanField(default=True, help_text='Should answers to this question be displayed on profiles?')),
+            ],
+            options={
+                'ordering': ['order', 'text'],
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='OrganisationQuestionChoice',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('text', models.CharField(max_length=255)),
+                ('order', models.SmallIntegerField(default=0)),
+                ('question', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='answers', to='people.OrganisationQuestion')),
+            ],
+            options={
+                'ordering': ['question__order', 'order', 'text'],
+                'abstract': False,
+            },
+        ),
+        migrations.CreateModel(
+            name='OrganisationAnswerSet',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('timestamp', models.DateTimeField(auto_now_add=True)),
+                ('replaced_timestamp', models.DateTimeField(blank=True, editable=False, null=True)),
+                ('organisation', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='answer_sets', to='people.Organisation')),
+                ('question_answers', models.ManyToManyField(to='people.OrganisationQuestionChoice')),
+            ],
+            options={
+                'ordering': ['timestamp'],
+                'abstract': False,
+            },
+        ),
+        migrations.AddConstraint(
+            model_name='organisationquestionchoice',
+            constraint=models.UniqueConstraint(fields=('question', 'text'), name='unique_question_answer'),
+        ),
+    ]