Made corporation unique on name and city

stages/migrations/0022_corporation_unique_name_and_city.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2017-07-19 14:22
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stages', '0021_klass_name_unique'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='corporation',
+            name='name',
+            field=models.CharField(max_length=100, verbose_name='Nom'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='corporation',
+            unique_together=set([('name', 'city')]),
+        ),
+    ]

stages/models.py

@@ -166,7 +166,7 @@ class Student(models.Model):
 
 class Corporation(models.Model):
     ext_id = models.IntegerField(null=True, blank=True, verbose_name='ID externe')
-    name = models.CharField(max_length=100, verbose_name='Nom', unique=True)
+    name = models.CharField(max_length=100, verbose_name='Nom')
     short_name = models.CharField(max_length=40, blank=True, verbose_name='Nom court')
     district = models.CharField(max_length=20, blank=True, verbose_name='Canton')
     parent = models.ForeignKey('self', null=True, blank=True, verbose_name='Institution mère',
@@ -184,6 +184,7 @@ class Corporation(models.Model):
     class Meta:
         verbose_name = "Institution"
         ordering = ('name',)
+        unique_together=(('name', 'city'),)
 
     def __str__(self):
         sect = ' (%s)' % self.sector if self.sector else ''