增加项目的各个功能

app/api/dao/productDao.py

@@ -0,0 +1,55 @@
+# encoding: UTF-8
+from ..model.productModel import Product
+from logger import logger
+
+
+class ProductDao(object):
+    @staticmethod
+    def create(session, model_cls, add_info):
+        obj = model_cls(**add_info)
+        session.add(obj)
+        err = session.done(close=False)
+        if err:
+            logger.warning(f'{model_cls.__name__}新增失败！{err}')
+            return 0, f'新增失败！{err}'
+        return obj.id, ''
+
+    @staticmethod
+    def update_by_id(session, model_cls, obj_id, update_info, soft_delete=True):
+        filters = [model_cls.id == int(obj_id)]
+        if soft_delete and hasattr(model_cls, 'is_delete'):
+            filters.append(model_cls.is_delete == 0)
+        update_res = session.query(model_cls).filter(*filters).update(update_info)
+        err = session.done(close=False)
+        if err:
+            logger.error(f'{model_cls.__name__}更新失败！id: {obj_id}, err: {err}')
+            return 0, f'更新失败！{err}'
+        if not update_res:
+            return 0, '未查询到对应记录！'
+        return int(obj_id), ''
+
+    @staticmethod
+    def get_by_id(session, model_cls, obj_id, soft_delete=True):
+        filters = [model_cls.id == int(obj_id)]
+        if soft_delete and hasattr(model_cls, 'is_delete'):
+            filters.append(model_cls.is_delete == 0)
+        return session.query(model_cls).filter(*filters).first()
+
+    @staticmethod
+    def list_by_filters(session, model_cls, filter_list, page=1, limit=20, order_column=None):
+        query = session.query(model_cls).filter(*filter_list)
+        if hasattr(model_cls, 'is_delete'):
+            query = query.filter(model_cls.is_delete == 0)
+        total = query.count()
+        if order_column is not None:
+            query = query.order_by(order_column.desc())
+        rets = query.offset((int(page) - 1) * int(limit)).limit(int(limit)).all()
+        return rets, total
+
+    @staticmethod
+    def delete_by_id(session, model_cls, obj_id):
+        return ProductDao.update_by_id(session, model_cls, obj_id, {'is_delete': 1})
+
+    @staticmethod
+    def product_model():
+        return Product