Cross-posted from "What would be the best way to store the country of a user in SQL?" by @lena@gregtech.eu in !learn_programming@programming.dev


I use Gorm. This is the current code:

package main

import (
	"fmt"
	"log"

	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
)

type Env struct {
	DB     *gorm.DB
	Logger *log.Logger
}

type User struct {
	ID           uint
	Username     string
	Name         string
	Email        string
	PasswordHash string
	Country      string //should probably be a foreign key of another table
}

func initDB() {
	env := &Env{}
	db, err := gorm.Open(sqlite.Open("gorm.db"), &gorm.Config{})
	if err != nil {
		fmt.Printf("Error opening database: %v", err)
		return
	}
	env.DB = db
	env.DB.AutoMigrate(&User{})

}

func main() {
	initDB()
}

As you can see in the comment in the code, I assume the best way would be to have a table of countries and then assign each user to one via a foreign key. However, it seems a bit cumbersome to manually create a list of all countries. Is there a better way to do this?

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[–] 7 points 1 year ago (10 children)

GPS? Absolutely insufficient. What about the people on the ISS? Or when the moon base is established? Ever thought of that? No. You think only of yourself.

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  • [–] 4 points 1 year ago (5 children)

    Fine, we'll add altitude as well.

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  • [–] 5 points 1 year ago (1 child)

    You should also include the standardized name of the body the coordinates are relative to. Need to be able to differentiate between lat/long on Jupiter vs on Earth (where lat/long are much more "crunched" aka more precise with shorter floats).

    This will be important if intelligent extraterrestrial life is found, or when Musk ships himself to Mars for the good of humanity.

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  • [–] 2 points 1 year ago

    Simple, add additional columns for the frame of reference (e.g. Earth) and elevation. You could even store space coordinates using Sun as a reference point (though you would need to update data regularly for spacecraft as they move of course).

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  • [–] 1 point 1 year ago (2 children)

    GPS: Galactic Positioning System

    Just suppose you are not selling the software outside of the galaxy and you will have to update your database (and transform and migrate all the data) when the 2 galaxy positioning system is formed.

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