feat: 计算逻辑更新

web/calculators/__init__.py

@@ -127,7 +127,7 @@ class Calculator:
 
         previous_price = int(getattr(self.previous_prices, 'price_recommend', 0))
         if not previous_price:
-            return 0, 0
+            previous_price = int(getattr(self.previous_prices, 'price_calculate', 0))
 
         fluctuating = sum(self._fluctuatings) / len(self._fluctuatings)
         fluctuating = round(fluctuating / round_by) * round_by
@@ -141,6 +141,11 @@ class Calculator:
         result = self.result()
         PriceResult(**result).upsert()
 
+    def _get_fluctuating(self, field_name, price):
+        previous_price = getattr(self.previous_prices, field_name, 0) or price
+        fluctuating = price - previous_price if price else 0
+        return fluctuating
+
 
 if __name__ == '__main__':
     from calculators.asphalt_domestic import AsphaltDomesticCalculator