simple-go

main.go

package main

import (
	"database/sql"
	"fmt"
	"github.com/superlogical/simple-go/Godeps/_workspace/src/github.com/go-gorp/gorp"
	_ "github.com/superlogical/simple-go/Godeps/_workspace/src/github.com/go-sql-driver/mysql"
	"github.com/superlogical/simple-go/log"
	"github.com/superlogical/simple-go/util"
	"net/http"
	"os"
	"strings"
	"time"
)

var (
	ip string
)

type Post struct {
	Id      int64 `db:"post_id"`
	Created int64
	Title   string `db:",size:50"`
	Body    string `db:"article_body,size:1024"`
}

func newPost(title, body string) Post {
	return Post{
		Created: time.Now().UnixNano(),
		Title:   title,
		Body:    body,
	}
}

func indexHandler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprint(w, "It works! The ip address:", ip)
}

func initDB(dbUrl string) *gorp.DbMap {
	db, err := sql.Open("mysql", dbUrl)
	checkErr(err, "sql.Open failed")
	log.Info("CONNECTED=ok")

	err = db.Ping()
	checkErr(err, "Ping failed")
	log.Info("PING=ok")

	dbmap := &gorp.DbMap{
		Db:      db,
		Dialect: gorp.MySQLDialect{Engine: "InnoDB", Encoding: "UTF8"},
	}

	dbmap.AddTableWithName(Post{}, "posts").SetKeys(true, "Id")
	err = dbmap.CreateTablesIfNotExists()
	checkErr(err, "Create tables failed")

	return dbmap
}

func checkErr(err error, msg string) {
	if err != nil {
		log.Fatal(msg, err)
	}
}

func main() {
	log.Info("Starting simple-go")

	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}
	log.Info("PORT=", port)

	dbUrl := os.Getenv("DATABASE_URL")
	log.Info("DATABASE_URL=" + dbUrl)

	log.Info("ENV=:")
	for _, e := range os.Environ() {
		pair := strings.Split(e, ":")
		log.Info(pair)
	}

	log.Info("CONNECTING: ", dbUrl)
	dbmap := initDB(dbUrl)
	defer dbmap.Db.Close()

	ip = util.GetMyIpAddress()
	http.HandleFunc("/", indexHandler)

	host := "http://" + ip + ":" + port

	log.Info("LISTENING=", host)
	log.Fatal(http.ListenAndServe(":"+port, nil))
}