Currency model added

rex/migrations/0003_currency.py

+# Generated by Django 2.0.3 on 2018-08-20 14:54
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('rex', '0002_universityscholarship'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Currency',
+            fields=[
+                ('code', models.CharField(max_length=15, primary_key=True, serialize=False)),
+                ('name', models.CharField(max_length=100)),
+                ('symbol', models.CharField(max_length=5)),
+                ('one_USD_in_this_currency', models.DecimalField(decimal_places=6, max_digits=20, validators=[django.core.validators.MinValueValidator(0)])),
+            ],
+        ),
+    ]

rex/models/module/__init__.py

 from .module import Module  # noqa: F401
 from .basicModule import BasicModule  # noqa: F401
 from .scholarship import Scholarship  # noqa: F401
+from .currency import Currency, CurrencyViewSet, CurrencySerializer  # noqa: F401

rex/models/module/currency.py

+from django.db import models
+from rest_framework import serializers, viewsets, permissions
+from django.core.validators import MinValueValidator
+
+
+class Currency(models.Model):
+    code = models.CharField(primary_key=True, max_length=15)
+    name = models.CharField(max_length=100)
+    symbol = models.CharField(max_length=5)
+    one_USD_in_this_currency = models.DecimalField(
+        max_digits=20,
+        decimal_places=6,
+        validators=[MinValueValidator(0)]
+    )
+
+
+class CurrencySerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Currency
+        fields = ('code', 'name', 'symbol', 'one_USD_in_this_currency')
+
+
+class CurrencyViewSet(viewsets.ModelViewSet):
+    permission_classes = (permissions.DjangoModelPermissions,)
+    queryset = Currency.objects.all()  # pylint: disable=E1101
+    serializer_class = CurrencySerializer

rex/urls.py

@@ -3,6 +3,7 @@ from rex import views
 from rest_framework import routers
 from rex.models.location import CountryViewSet, CityViewSet
 from rex.models.university import CampusViewSet, UniversityViewSet, UniversityScholarshipViewSet
+from rex.models.module import CurrencyViewSet
 from rest_framework.documentation import include_docs_urls
 
 
@@ -18,5 +19,6 @@ router.register(r'city', CityViewSet)
 router.register(r'campus', CampusViewSet)
 router.register(r'university', UniversityViewSet)
 router.register(r'university_scholarship', UniversityScholarshipViewSet)
+router.register(r'currency', CurrencyViewSet)
 
 urlpatterns += [url(r'^api/', include(router.urls))]