package model import "database/sql" type LinkCommon interface { Exec(query string, args ...interface{}) (sql.Result, error) Prepare(query string) (*sql.Stmt, error) Query(query string, args ...interface{}) (*sql.Rows, error) QueryRow(query string, args ...interface{}) *sql.Row } type OpinionItem struct { Key string Val string } const Mysql = "mysql" const Mssql = "mssql" const Postgres = "postgres" const Sqlite3 = "sqlite3"