changed view and deleted the database unique filed

django/didgeridoo/currencies/exchange_rates.py

@@ -55,9 +55,11 @@ def get_exchange_rate():
         # https://stackoverflow.com/a/12282040/4061870
         # seams like snb striked the microsecond somewhere between Nov. and
         # Dez. 2017 so maybe first check time type. "%Y-%m-%dT%H:%M:%S.%f%z"
-        date = datetime.strptime(''.join(datetime_str.rsplit(':', 1)),
-                                 "%Y-%m-%dT%H:%M:%S%z").strftime("%Y-%m-%d")
-        # only the values of today are used so check for date:
+        date = datetime.strptime(''.join(
+                                 datetime_str.rsplit(':', 1)),
+                                 "%Y-%m-%dT%H:%M:%S%z").strftime(
+                                 "%Y-%m-%d")
+        # only the values of today are used so check for date in XML:
         if date == today:
             title = item.find('none:title', ns).text
             base_currency = item.find(rate_path +

django/didgeridoo/currencies/migrations/0004_auto_20171229_1708.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-12-29 16:08
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('currencies', '0003_auto_20171227_1119'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='exchangerate',
+            name='name',
+            field=models.CharField(max_length=200),
+        ),
+    ]

django/didgeridoo/currencies/migrations/0005_auto_20171229_1735.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-12-29 16:35
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('currencies', '0004_auto_20171229_1708'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='exchangerate',
+            name='date',
+            field=models.DateField(null=True, verbose_name='%Y-%m-%dT%H:%M:%S'),
+        ),
+    ]

django/didgeridoo/currencies/migrations/0006_auto_20171229_1747.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-12-29 16:47
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('currencies', '0005_auto_20171229_1735'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='exchangerate',
+            name='date',
+            field=models.DateTimeField(null=True, verbose_name='%Y-%m-%dT%H:%M:%S'),
+        ),
+    ]

django/didgeridoo/currencies/migrations/0007_auto_20171229_1806.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2017-12-29 17:06
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('currencies', '0006_auto_20171229_1747'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='exchangerate',
+            name='date',
+            field=models.DateField(null=True, verbose_name='%Y-%m-%d'),
+        ),
+    ]

django/didgeridoo/currencies/models.py

@@ -2,7 +2,7 @@ from django.db import models
 
 
 class ExchangeRate(models.Model):
-    name = models.CharField(max_length=200, unique=True)
+    name = models.CharField(max_length=200)
     date = models.DateField('%Y-%m-%d', null=True)
     exchange_rate_to_chf = models.FloatField(max_length=5)
 

django/didgeridoo/currencies/templates/currencies/index.html

@@ -13,14 +13,15 @@
               <th scope="col">{{ currency.name }}</th>
             {% endfor %}
           </tr>
-          <tr>
-           <td>{{ date }}</td>
-           {% for currency in currency_list %}
-             <td>{{ currency.exchange_rate_to_chf }}</td>
-           {% endfor %}
-          </tr>
+            <tr>
+                <td>{{ date }}</td>
+                  {% for currency in currency_list %}
+                     <td>{{ currency.exchange_rate_to_chf }}</td>
+                  {% endfor %}
+            </tr>
         </table>
         <br>
+        <p> {{ message }} </p>
         <br>
         <ul>
             {% for currency in currency_list %}

django/didgeridoo/currencies/views.py

@@ -6,14 +6,10 @@ from currencies import exchange_rates
 def currencies(request):
     # return HttpResponse("exchange_rates")
     raw_data, date = exchange_rates.get_exchange_rate()
+    message = ""
     for currency, rate in raw_data.items():
-        if ExchangeRate.objects.filter(name=currency):
-            e = ExchangeRate.objects.filter(
-                name=currency,
-                ).update(
-                exchange_rate_to_chf=rate,
-                date=date
-                )
+        if ExchangeRate.objects.filter(date=date):
+            message = "already querried today"
         else:
             e = ExchangeRate.objects.create(
                 name=currency,
@@ -21,8 +17,10 @@ def currencies(request):
                 date=date
                 )
             e.save()
+            message = "updated successfully"
     currency_list = ExchangeRate.objects.all()
     return render(request,
                   'currencies/index.html',
                   {'currency_list': currency_list,
-                   'date': date})
+                   'date': date,
+                   'message': message})