Game7 去掉上级邀请id限制

internal/model/nh_role_model.go

@@ -0,0 +1,45 @@
+package model
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"github.com/zeromicro/go-zero/core/stores/sqlx"
+)
+
+var _ NhRoleModel = (*customNhRoleModel)(nil)
+
+type (
+	// NhRoleModel is an interface to be customized, add more methods here,
+	// and implement the added methods in customNhRoleModel.
+	NhRoleModel interface {
+		nhRoleModel
+		withSession(session sqlx.Session) NhRoleModel
+		AccountExist(ctx context.Context, account string) (bool, error)
+	}
+
+	customNhRoleModel struct {
+		*defaultNhRoleModel
+	}
+)
+
+func (m *customNhRoleModel) AccountExist(ctx context.Context, account string) (bool, error) {
+	query := fmt.Sprintf("select count(*) as `count` from %s where `account` = ?", m.table)
+	var count int64
+	err := m.conn.QueryRowCtx(ctx, &count, query, account)
+	if err != nil && !errors.Is(err, sqlx.ErrNotFound) {
+		return false, err
+	}
+	return count > 0, nil
+}
+
+// NewNhRoleModel returns a model for the database table.
+func NewNhRoleModel(conn sqlx.SqlConn) NhRoleModel {
+	return &customNhRoleModel{
+		defaultNhRoleModel: newNhRoleModel(conn),
+	}
+}
+
+func (m *customNhRoleModel) withSession(session sqlx.Session) NhRoleModel {
+	return NewNhRoleModel(sqlx.NewSqlConnFromSession(session))
+}