diff --git a/model/killara_customer_logic.go b/model/killara_customer_logic.go
index 005df88..d48aa95 100644
--- a/model/killara_customer_logic.go
+++ b/model/killara_customer_logic.go
@@ -99,6 +99,24 @@ func (m *KillaraCustomerModel) GetCustomerForBackEnd(customerID uint64) (*Killar
 	return &customer, err
 }
 
+// 可以用于代替下面的data结构
+type Filter struct {
+	Type      *int64  `json:"filter_type" form:"filter_type"`
+	Email     *string `json:"filter_email" form:"filter_email"`
+	Telephone *string `json:"filter_telephone" form:"filter_telephone"`
+	Nickname  *string `json:"filter_nickname" form:"filter_nickname"`
+	Name      *string `json:"filter_name" form:"filter_name"`
+	Code      *string `json:"filter_code" form:"filter_code"`
+	Realname  *string `json:"filter_realname" form:"filter_realname"`
+	Parents   *[]int  `json:"filter_parents" form:"filter_parents"`
+	Status    *int64  `json:"filter_status" form:"filter_status"`
+	DisableA  *bool   `json:"filter_disable_a" form:"filter_disable_a"`
+	Sort      *string `json:"sort" form:"sort"`
+	Order     *string `json:"order" form:"order"`
+	Start     *int64  `json:"start" form:"start"`
+	Limit     *int64  `json:"limit" form:"limit"`
+}
+
 func (m *KillaraCustomerModel) GetCustomersForBackEndForAutocomplete(data map[string]interface{}) ([]*KillaraCustomer, error) {
 	var customers []*KillaraCustomer
 	query := m.db.Model(&KillaraCustomer{})
@@ -300,3 +318,93 @@ func (m *KillaraCustomerModel) GetTotalCustomersForBackEnd(data map[string]inter
 	}
 	return count, err
 }
+
+// 获取客户的所有上级
+func (m *KillaraCustomerModel) GetFullParents(parentID uint64) ([]*KillaraCustomer, error) {
+	var parents []*KillaraCustomer
+
+	// 获取当前父级客户
+	parent, err := m.GetCustomer(parentID)
+	if err != nil {
+		return nil, err
+	}
+	if parent != nil {
+		parents = append(parents, parent)
+
+		// 如果还有上级,则递归获取
+		if parent.ParentId != nil {
+			upperParents, err := m.GetFullParents(uint64(*parent.ParentId))
+			if err != nil {
+				return nil, err
+			}
+			parents = append(parents, upperParents...)
+		}
+	}
+
+	return parents, nil
+}
+
+// 获取客户自身及所有上级
+func (m *KillaraCustomerModel) GetFullParentsFromSelf(customerID uint64) ([]*KillaraCustomer, error) {
+	customer, err := m.GetCustomer(customerID)
+	if err != nil {
+		return nil, err
+	}
+
+	var parents []*KillaraCustomer
+	if customer != nil && customer.ParentId != nil {
+		parents, err = m.GetFullParents(uint64(*customer.ParentId))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	parents = append([]*KillaraCustomer{customer}, parents...)
+	return parents, nil
+}
+
+// 获取客户的所有下级
+func (m *KillaraCustomerModel) GetFullChildren(parentID uint64) ([]*KillaraCustomer, error) {
+	var children []*KillaraCustomer
+
+	// 获取直接下级
+	directChildren, err := m.GetCustomersForBackEnd(map[string]interface{}{
+		"filter_parent_id": parentID,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	children = append(children, directChildren...)
+
+	// 递归获取下级的下级
+	for _, child := range directChildren {
+		grandChildren, err := m.GetFullChildren(*child.CustomerId)
+		if err != nil {
+			return nil, err
+		}
+		children = append(children, grandChildren...)
+	}
+
+	return children, nil
+}
+
+// 获取客户自身及所有下级
+func (m *KillaraCustomerModel) GetFullChildrenWithSelf(customerID uint64) ([]*KillaraCustomer, error) {
+	customer, err := m.GetCustomer(customerID)
+	if err != nil {
+		return nil, err
+	}
+
+	var children []*KillaraCustomer
+	if customer != nil {
+		children = append(children, customer)
+		childrenOfCustomer, err := m.GetFullChildren(*customer.CustomerId)
+		if err != nil {
+			return nil, err
+		}
+		children = append(children, childrenOfCustomer...)
+	}
+
+	return children, nil
+}
diff --git a/readme.md b/readme.md
index cbef0e7..61d0918 100644
--- a/readme.md
+++ b/readme.md
@@ -8,4 +8,6 @@
 4. 日志设计不完善。 
 5. 没事务回滚, 经过异步处理后, 事务无法一致
 6. 电话号码和邮件不是唯一, 帐号表数据可能混乱
-7. 表绝大部分没建索引, 数量上去, 性能立马下降
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+7. 表绝大部分没建索引, 数量上去, 性能立马下降
+8. 表的部分字段不对应, 如 parent_id 和 customer_id 是同一事物, 但是类型不一样. 可能会产生不可预料的错误
+9. 数据库里递归查询, 一个查询n个query请求.出问题数据库死锁,整个项目崩溃. 例如 getFullParents
\ No newline at end of file