yasin

monc cache is bug

1

**Describe the bug** data.id.hex is nil 1. The code is ```go func (m *defaultUserModel) FindOne(ctx context.Context, id string) (*User, error) { oid, err := primitive.ObjectIDFromHex(id) if err != nil {...

The configuration item supports the priority

3

The configuration item supports the priority,like [viper](https://github.com/spf13/viper) Environment variable > file > default； for example： ```go type Database struct { Host string `json:",optional,default=127.0.0.1:27017"` } ``` config file ```yaml Database: Host:...