Use quantity instead of usage_count

uncloud_pay/admin.py

@@ -7,7 +7,7 @@ class BillRecordInline(admin.TabularInline):
 
 class BillAdmin(admin.ModelAdmin):
     inlines = [ BillRecordInline ]
-;
+
 admin.site.register(Bill, BillAdmin)
 admin.site.register(Order)
 admin.site.register(BillRecord)

uncloud_pay/migrations/0003_auto_20200621_1442.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.6 on 2020-06-21 14:42
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('uncloud_pay', '0002_auto_20200621_1335'),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name='billrecord',
+            old_name='usage_count',
+            new_name='quantity',
+        ),
+    ]

uncloud_pay/models.py

@@ -336,7 +336,7 @@ class Order(models.Model):
         This logic is mainly thought to be for recurring bills, but also works for one time bills
         """
 
-        return sum([ br.usage_count for br in self.bill_records.all() ])
+        return sum([ br.quantity for br in self.bill_records.all() ])
 
 
     def active_before(self, ending_date):
@@ -502,7 +502,7 @@ class Bill(models.Model):
                                           bill_records=None):
 
             bill_record = BillRecord.objects.create(bill=self,
-                                                    usage_count=1,
+                                                    quantity=1,
                                                     starting_date=order.starting_date,
                                                     ending_date=order.starting_date + timedelta(seconds=order.recurring_period))
 
@@ -539,7 +539,7 @@ class BillRecord(models.Model):
     order = models.ForeignKey(Order, on_delete=models.CASCADE)
 
     # How many times the order has been used in this record
-    usage_count = models.IntegerField(default=1)
+    quantity = models.IntegerField(default=1)
 
     # The timeframe the bill record is for can (and probably often will) differ
     # from the bill time
@@ -548,7 +548,7 @@ class BillRecord(models.Model):
     ending_date = models.DateTimeField()
 
     def __str__(self):
-        return f"{self.bill}: {self.usage_count} x {self.order}"
+        return f"{self.bill}: {self.quantity} x {self.order}"
 
 
 class OrderRecord(models.Model):