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init.go
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init.go
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package main
import (
"database/sql"
"fmt"
"html/template"
"io"
"os"
"github.com/labstack/echo/v4"
_ "github.com/mattn/go-sqlite3"
)
const (
AppName = "social"
DBName = "mersal"
//TableName = "users"
)
var (
db *sql.DB
)
// init database
func ConnectDB() *sql.DB {
// sql.Open("mysql", "root:123456@tcp(127.0.0.1:3306)/?charset=utf8&parseTime=True&loc=Local")
db, err := sql.Open("sqlite3", "mersal.db")
if err != nil { // why no error when db is not runinig ??
fmt.Println("run mysql server", err)
}
if err = db.Ping(); err != nil {
// TODO handle this error: dial tcp 127.0.0.1:3306: connect: connection refused
fmt.Println("mybe database is not runing or error is: ", err)
os.Exit(1)
}
return db
}
// init templates
type Template struct {
templates *template.Template
}
func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
return t.templates.ExecuteTemplate(w, name, data)
}
// path file is depends to enveronment.
func Templs(path string) *Template {
return &Template{templates: template.Must(template.ParseFiles(listFiles(path)...))}
}
// listFiles return list filenames os spicific dir
// use paht.wolkFile insteade
func listFiles(dir string) (list []string) {
f, err := os.Open(dir)
if err != nil {
fmt.Println(err)
return
}
files, err := f.Readdir(0)
if err != nil {
fmt.Println(err)
return
}
sublist := make([]string, 0)
root := dir + "/"
for _, v := range files {
root = dir + "/"
if v.IsDir() {
root = root + v.Name()
sublist = listFiles(root)
//for _, filename := range sublist {
// list = append(list, filename)
//}
continue
}
list = append(list, root+v.Name())
}
for _, f := range sublist {
list = append(list, f)
}
return list
}
// folder when photos is stored.
func PhotoFold() string {
//if os.Getenv("USERNAME") == "fedor" {
// return "/home/fedor/repo/files/"
//}
return "../files/"
}
// where is assets path ?
func Assets() string {
home, err := os.Getwd()
if err != nil {
fmt.Println(err)
}
if home != "/Users/fedora/repo/mersal" {
return "/root/mersal/assets"
}
return "assets"
}
// CREATE DATABASE (not with sqlite);
func CreateDB(dbName string, db *sql.DB) {
_, err := db.Exec("CREATE DATABASE IF NOT EXISTS " + DBName + ";")
if err != nil {
panic(err)
}
}
// CREATE DATABASE (not with sqlite);
func CreateTable(tableName string, db *sql.DB) {
_, err := db.Exec("CREATE TABLE IF NOT EXISTS " + tableName + ";")
if err != nil {
panic(err)
}
}