Adding custom country field

coopstarter_data/fixtures/countries.json

+[
+    {
+        "model": "coopstarter_data.country",
+        "pk": 1,
+        "fields": {
+            "name": "France",
+            "code": "AF"
+        }
+    },
+    {
+        "model": "coopstarter_data.country",
+        "pk": 2,
+        "fields": {
+            "name": "United Kingdom",
+            "code": "GB"
+        }
+    }
+]
+    

coopstarter_data/models.py

@@ -2,7 +2,6 @@ from django.db import models
 from django.core.mail import send_mail
 from djangoldp.models import Model
 from django.conf import settings
-from django_countries.fields import CountryField
 from django.contrib.auth import get_user_model
 from django.db.models.signals import post_save, m2m_changed
 from django.dispatch import receiver
@@ -12,6 +11,13 @@ from django.utils import timezone
 
 from django.template import loader
 
+class Country (Model):
+    code = models.CharField(max_length=2, verbose_name="ISO Code")
+    name = models.CharField(max_length=64, verbose_name="Country name")
+    
+    def __str__(self):
+        return self.name
+
 class Language (Model):
     code = models.CharField(max_length=2, verbose_name="ISO Code")
     name = models.CharField(max_length=64, verbose_name="Language name")
@@ -60,7 +66,7 @@ class Type (Model):
 
 class Entrepreneur(Model):
     user = models.OneToOneField(settings.AUTH_USER_MODEL, related_name="entrepreneur_profile")
-    organisation = models.ForeignKey(Organisation, null=True, on_delete=models.CASCADE)
+    organisation = models.ForeignKey(Organisation, null=True, on_delete=models.CASCADE, related_name="entrepreneurs")
     
     class Meta:
         auto_author = 'user'
@@ -79,8 +85,8 @@ class Entrepreneur(Model):
 class Mentor(Model):
     user = models.OneToOneField(settings.AUTH_USER_MODEL, related_name="mentor_profile")
     phone = models.CharField(max_length=25, null=True, blank=True, verbose_name='Phone number')
-    organisation = models.ForeignKey(Organisation, null=True, on_delete=models.CASCADE)
-    country = CountryField(blank=True)
+    organisation = models.ForeignKey(Organisation, null=True, on_delete=models.CASCADE, related_name="mentors")
+    country = models.ForeignKey(Country, null=True, related_name="mentors")
     languages = models.ManyToManyField(Language, blank=True)
 
     headline = models.CharField(max_length=256, blank=True, verbose_name='Headline or current position')
@@ -112,7 +118,7 @@ class Mentor(Model):
 class Review (Model):
     comment =  models.TextField(verbose_name="Comment", blank=True)
     status = models.CharField(max_length=32, choices=(('pending', 'Pending'), ('inappropriate', 'Inappropriate'), ('validated', 'Validated'), ('to_improve', 'Improvement required')), verbose_name="Resource status", blank=True, null=True)
-    reviewer = models.ForeignKey(settings.AUTH_USER_MODEL, blank=True, null=True, on_delete=models.CASCADE, related_name='reviews')
+    reviewer = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, on_delete=models.CASCADE, related_name='reviews')
 
     class Meta:
         owner_field = 'reviewer'
@@ -135,7 +141,7 @@ class Resource (Model):
     publication_year = models.IntegerField(verbose_name="Publication Year")
     language = models.ForeignKey(Language, blank=True, verbose_name="Language", related_name='resources')
     fields = models.ManyToManyField(Field, blank=True, related_name='resources')
-    country = CountryField(verbose_name="Country of publication", blank=True)
+    country = models.ForeignKey(Country, null=True)
     uri = models.CharField(max_length=4086, verbose_name="Location/weblink")
     author = models.CharField(max_length=32, verbose_name="Author")
     skills = models.TextField(verbose_name="Learning outcomes/skills")
@@ -188,7 +194,7 @@ class Request (Model):
     
     language = models.ForeignKey(Language, blank=True, verbose_name="Language")
     fields = models.ManyToManyField(Field, blank=True)
-    country = CountryField(verbose_name="Country of publication", blank=True)
+    country = models.ForeignKey(Country, null=True)
     
     organisation = models.ForeignKey(Organisation, on_delete=models.CASCADE, related_name="requests")
     skills = models.TextField(verbose_name="Learning outcomes/skills")