增加GORM的demo

.gitignore

@@ -10,4 +10,5 @@ jetcd-tutorials/.gradle/*
 .DS_Store
 grpc-tutorials/.gradle/*
 leetcode/out
-leetcode/.vscode/*
+leetcode/.vscode/*
+blog_demos/tutorials/gorm-tutorials/test.db

tutorials/gorm-tutorials/go.mod

@@ -0,0 +1,11 @@
+module gorm-tutorials
+
+go 1.19
+
+require (
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/mattn/go-sqlite3 v1.14.16 // indirect
+	gorm.io/driver/sqlite v1.4.4 // indirect
+	gorm.io/gorm v1.24.5 // indirect
+)

tutorials/gorm-tutorials/go.sum

@@ -0,0 +1,13 @@
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
+github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/mattn/go-sqlite3 v1.14.15/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
+github.com/mattn/go-sqlite3 v1.14.16 h1:yOQRA0RpS5PFz/oikGwBEqvAWhWg5ufRz4ETLjwpU1Y=
+github.com/mattn/go-sqlite3 v1.14.16/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
+gorm.io/driver/sqlite v1.4.4 h1:gIufGoR0dQzjkyqDyYSCvsYR6fba1Gw5YKDqKeChxFc=
+gorm.io/driver/sqlite v1.4.4/go.mod h1:0Aq3iPO+v9ZKbcdiz8gLWRw5VOPcBOPUQJFLq5e2ecI=
+gorm.io/gorm v1.24.0/go.mod h1:DVrVomtaYTbqs7gB/x2uVvqnXzv0nqjB396B8cG4dBA=
+gorm.io/gorm v1.24.5 h1:g6OPREKqqlWq4kh/3MCQbZKImeB9e6Xgc4zD+JgNZGE=
+gorm.io/gorm v1.24.5/go.mod h1:DVrVomtaYTbqs7gB/x2uVvqnXzv0nqjB396B8cG4dBA=

tutorials/gorm-tutorials/main.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"fmt"
+
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+)
+
+type Product struct {
+	gorm.Model
+	Code  string
+	Price uint
+}
+
+const (
+	FIRST_PRODUCT_CODE = "D101"
+)
+
+func main() {
+	fmt.Println("Hello world")
+
+	db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
+
+	if err != nil {
+		panic("failed to connect database")
+	}
+
+	db.AutoMigrate(&Product{})
+
+	db.Create(&Product{Code: FIRST_PRODUCT_CODE, Price: 1000})
+
+	var product Product
+
+	db.First(&product, "code = ?", FIRST_PRODUCT_CODE)
+
+	fmt.Printf("product: %+v\n", product)
+
+	db.Delete(&product, product.ID)
+}