Merge pull request #34 from tpokorra/TP-202108-fixindexes

add indexes to improve the speed of calc.py

apps/rates/migrations/0002_exchangerate_exchangerat_crypto__8e5f68_idx.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.2.5 on 2021-08-25 15:58
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('rates', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name='exchangerate',
+            index=models.Index(fields=['crypto_currency', 'fiat_currency', 'datetime_valid'], name='exchangerat_crypto__8e5f68_idx'),
+        ),
+    ]

apps/rates/models.py

@@ -8,3 +8,7 @@ class ExchangeRate(models.Model):
     datetime_valid = models.DateTimeField('datetime valid')
     class Meta:  
         db_table = "exchangerate"
+
+        indexes = [
+            models.Index(fields=['crypto_currency', 'fiat_currency', 'datetime_valid',]),
+        ]

apps/transactions/migrations/0007_transaction_transaction_crypto__de924d_idx.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.2.5 on 2021-08-25 15:58
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('transactions', '0006_auto_20210511_2230'),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name='transaction',
+            index=models.Index(fields=['crypto_currency', 'owner', 'transaction_type'], name='transaction_crypto__de924d_idx'),
+        ),
+    ]

apps/transactions/models.py

@@ -44,3 +44,7 @@ class Transaction(models.Model):
 
     class Meta:  
         db_table = "transaction"
+
+        indexes = [
+            models.Index(fields=['crypto_currency', 'owner', 'transaction_type',]),
+        ]