fix: 修复材料半年均价计算错误的问题

web/commons/models/price_publish.py

@@ -1,7 +1,8 @@
 import datetime
+from operator import and_
 
 from dateutil.relativedelta import relativedelta
-from sqlalchemy import Column, Integer, String, Numeric
+from sqlalchemy import Column, Integer, String, Numeric, or_
 
 from commons.models.mixin.base import BaseModelMixin
 from commons.models.mixin.operation_track import OperationTrackMixin
@@ -71,10 +72,10 @@ class PricePublish(db.Model, Model, OperationTrackMixin, BaseModelMixin):
     @classmethod
     def query_previous_month(cls, query, start_date: datetime.date, count=6):
         condition = False
-        for i in range(count):
+        for i in range(0, count):
             date = start_date - relativedelta(months=i)
-            condition = condition or (cls.year == date.year and cls.month == date.month)
-        query.filter(condition)
+            condition = or_(condition, and_(cls.year == str(date.year), cls.month == str(date.month)))
+        query = query.filter(condition)
         return query
 
     @classmethod