adding gorm

backend/go.mod

@@ -1,3 +1,12 @@
-module adam-french.co.uk/simplebackend
+module adam-french.co.uk/backend
 
 go 1.22
+
+require (
+	github.com/gin-gonic/gin v1.9.1
+	github.com/joho/godotenv v1.5.1
+	github.com/lib/pq v1.10.7
+	github.com/sirupsen/logrus v1.9.3
+	gorm.io/gorm v1.26.0
+	gorm.io/driver/postgres v1.5.0
+)

backend/main.go

@@ -3,9 +3,42 @@ package main
 import (
 	"fmt"
 	"net/http"
+
+	"log"
+
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+
+	"adam-french.co.uk/backend/models"
 )
 
+func connectToPostgreSQL() (*gorm.DB, error) {
+	dsn := "user=postgres password=password dbname=simplebackend host=localhost port=5432 sslmode=disable"
+	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
+	if err != nil {
+		return nil, err
+	}
+
+	return db, nil
+}
+
 func main() {
+	db, err := connectToPostgreSQL()
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	// Perform database migration
+	err = db.AutoMigrate(&models.User{})
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = db.AutoMigrate(&models.Post{})
+	if err != nil {
+		log.Fatal(err)
+	}
+
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprintln(w, "Hello from Go!")
 	})

backend/models/post.go

@@ -0,0 +1,11 @@
+package models
+
+import "gorm.io/gorm"
+
+type Post struct {
+	gorm.Model        // includes ID, CreatedAt, UpdatedAt, DeletedAt
+	Title      string `gorm:"not null"`
+	Content    string `gorm:"type:text; not null"`
+	AuthorID   uint   // foreign key to User
+	Author     User   `gorm:"constraint:OnUpdate:CASCADE,OnDelete:SET NULL;"` // optional relation
+}

backend/models/user.go

@@ -0,0 +1,10 @@
+package models
+
+import "gorm.io/gorm"
+
+type User struct {
+	gorm.Model // includes ID, CreatedAt, UpdatedAt, DeletedAt
+	Name       string
+	Email      string `gorm:"uniqueIndex"`
+	Password   string
+}