Adding basic go example for gorm with postgresql.

2022/01/go_postgresql1/Program.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"fmt"
+	postgres "gorm.io/driver/postgres"
+	gorm "gorm.io/gorm"
+	"log"
+)
+
+type User struct {
+	Id        uint `gorm:"primaryKey"`
+	FirstName string
+	LastName  string
+	Locked    bool
+}
+
+func main() {
+	url := "host=localhost user=gorm password=gorm dbname=gorm port=5432 sslmode=disable TimeZone=Europe/Warsaw"
+	config := gorm.Config{}
+	con, err := gorm.Open(postgres.Open(url), &config)
+	if err != nil {
+		log.Panicf("Sorry, I couldn't create a connection to database %v", err)
+		return
+	}
+
+	err = con.AutoMigrate(&User{})
+	if err != nil {
+		log.Panicf("I couldn't migrate user %v", err)
+		return
+	}
+
+	u := User{
+		FirstName: "Tomasz",
+		LastName:  "Półgrabia",
+		Locked:    false,
+	}
+	con.Create(&u)
+
+	fmt.Printf("Created first user %v", u)
+}

2022/01/go_postgresql1/docker-compose.yml

@@ -0,0 +1,10 @@
+version: "3.9"  # optional since v1.27.0
+services:
+  postgresql:
+    image: postgres:14
+    environment:
+      - POSTGRES_PASSWORD=123456
+    ports:
+      - "5432:5432"
+    volumes:
+      - c:\\developer\\bin\\postgresql\\data:/var/lib/postgresql/data