refacto(backend): migrate university changes

backend/backend_app/migrations/0002_auto_20200417_1430.py

+# Generated by Django 2.1.7 on 2020-04-17 12:30
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("backend_app", "0001_initial")]
+
+    operations = [
+        migrations.AddField(
+            model_name="university",
+            name="city",
+            field=models.CharField(default="", max_length=200),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="university",
+            name="country",
+            field=models.ForeignKey(
+                default="FR",
+                on_delete=django.db.models.deletion.PROTECT,
+                to="backend_app.Country",
+            ),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="university",
+            name="main_campus_lat",
+            field=models.DecimalField(
+                decimal_places=6,
+                default=0,
+                max_digits=10,
+                validators=[
+                    django.core.validators.MinValueValidator(-85.05112878),
+                    django.core.validators.MaxValueValidator(85.05112878),
+                ],
+            ),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="university",
+            name="main_campus_lon",
+            field=models.DecimalField(
+                decimal_places=6,
+                default=0,
+                max_digits=10,
+                validators=[
+                    django.core.validators.MinValueValidator(-180),
+                    django.core.validators.MaxValueValidator(180),
+                ],
+            ),
+            preserve_default=False,
+        ),
+    ]

backend/backend_app/models/campus.py

@@ -40,6 +40,12 @@ class Campus(BaseModel):
     class Meta:
         unique_together = ("is_main_campus", "university")
 
+    def save(self, *args, **kwargs):
+        raise Exception("Can't edit model anymore")
+
+    def delete(self, *args, **kwargs):
+        raise Exception("Can't edit model anymore")
+
 
 class CampusSerializer(BaseModelSerializer):
     class Meta:

backend/backend_app/models/city.py

@@ -17,6 +17,12 @@ class City(BaseModel):
     area = models.CharField(max_length=200, default="", blank=True)
     country = models.ForeignKey(Country, on_delete=models.PROTECT)
 
+    def save(self, *args, **kwargs):
+        raise Exception("Can't edit model anymore")
+
+    def delete(self, *args, **kwargs):
+        raise Exception("Can't edit model anymore")
+
 
 class CitySerializer(BaseModelSerializer):
     class Meta:

backend/backend_app/models/university.py

 import logging
 
 from django.db import models
+from django.core.validators import MinValueValidator, MaxValueValidator
 
 from backend_app.fields import JSONField
 from backend_app.models.abstract.essentialModule import (
@@ -10,6 +11,7 @@ from backend_app.models.abstract.essentialModule import (
 )
 from backend_app.models.file_picture import Picture
 from backend_app.permissions.moderation import ModerationLevels
+from backend_app.models.country import Country
 
 logger = logging.getLogger("django")
 
@@ -26,9 +28,27 @@ class University(EssentialModule):
     logo = models.ForeignKey(Picture, null=True, on_delete=models.PROTECT)
     website = models.URLField(default="", blank=True, max_length=300)
 
+    city = models.CharField(max_length=200)
+    country = models.ForeignKey(Country, on_delete=models.PROTECT)
+
+    main_campus_lat = models.DecimalField(
+        max_digits=10,
+        decimal_places=6,
+        validators=[MinValueValidator(-85.05112878), MaxValueValidator(85.05112878)],
+    )
+
+    main_campus_lon = models.DecimalField(
+        max_digits=10,
+        decimal_places=6,
+        validators=[MinValueValidator(-180), MaxValueValidator(180)],
+    )
+
     # a bit of denormalization
     denormalized_infos = JSONField(default=dict)
 
+    def location(self):
+        return {"lat": self.main_campus_lat, "lon": self.main_campus_lon}
+
 
 class UniversitySerializer(EssentialModuleSerializer):
     class Meta: