增加多条件查询构造器，删除部分curd层

applications/common/helper.py

@@ -0,0 +1,48 @@
+from sqlalchemy import and_
+
+from applications.extensions import db
+
+
+class ModelFilter:
+    """
+    orm多参数构造器
+    """
+    filter_field = {}
+    filter_list = []
+
+    type_exact = "exact"
+    type_vague = "vague"
+
+    def __init__(self):
+        self.filter_field = {}
+        self.filter_list = []
+
+    def exact(self, field_name, value):
+        """
+        准确查询字段
+        :param field_name: 模型字段名称
+        :param value: 值
+        """
+        if value and value != '':
+            self.filter_field[field_name] = {"data": value, "type": self.type_exact}
+
+    def vague(self, field_name, value: str):
+        """
+        模糊查询字段
+        :param field_name: 模型字段名称
+        :param value: 值
+        """
+        if value and value != '':
+            self.filter_field[field_name] = {"data": ('%' + value + '%'), "type": self.type_vague}
+
+    def get_filter(self, model: db.Model):
+        """
+        获取过滤条件
+        :param model: 模型字段名称
+        """
+        for k, v in self.filter_field.items():
+            if v.get("type") == self.type_vague:
+                self.filter_list.append(getattr(model, k).like(v.get("data")))
+            if v.get("type") == self.type_exact:
+                self.filter_list.append(getattr(model, k) == v.get("data"))
+        return and_(*self.filter_list)