我正在个人助理应用程序中设置reminder
功能。该应用程序以html形式接受提醒的详细信息,其中还包括date
和time
输入字段。
我正在使用golang创建服务器,并使用它创建了一个sqlite数据库。但是,表单中的日期和时间值不会保存在数据库中,而标题,描述等其他字段则会保存。我应该在sqlite DB中的时间和日期字段中使用哪种数据类型?
我尝试使用TEXT
作为日期和时间的数据类型,但是它不起作用。
输入表单:
...
<div class="form-group">
<label for="date">Date</label>
<input type="date" class="form-control" id="date" data-ng-model="formData.remDate" required>
</div>
<div class="form-group">
<label for="time">Time</label>
<input type="time" class="form-control" id="time" data-ng-model="formData.remTime" required>
</div>
...
这是从以下形式生成的reminder object
:
{title: "learn golang", description: "How do I save date and time in database?", date: Mon Apr 08 2019 00:00:00 GMT+0530 (India Standard Time), time: Thu Jan 01 1970 20:00:00 GMT+0530 (India Standard Time)}
用于在数据库中创建和存储的Golang文件:
package controllers
import (
"net/http"
"database/sql"
"fmt"
"strconv"
_ "github.com/mattn/go-sqlite3"
)
type reminder struct {
id int
title string
description string
date string
time string
}
func ReminderController(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
r.ParseForm()
request := reminder{
title: r.FormValue("title"),
description: r.FormValue("description"),
date: r.FormValue("date"),
time: r.FormValue("time"),
}
fmt.Println(request)
AddReminder(request, w)
}
func prepareDB() {
database, err := sql.Open("sqlite3", "./jarvis.db")
checkErr(err)
statement, err := database.Prepare("CREATE TABLE IF NOT EXISTS reminder (id INTEGER PRIMARY KEY, title TEXT, description TEXT, date TEXT, time TEXT")
checkErr(err)
statement.Exec()
}
func AddReminder(reminderObject reminder, res http.ResponseWriter) {
prepareDB()
database, err := sql.Open("sqlite3", "./jarvis.db")
checkErr(err)
statement, err := database.Prepare("INSERT INTO reminder (title, description, date, time) VALUES (?,?,?,?) ")
checkErr(err)
fmt.Println(reminderObject.title)
statement.Exec(reminderObject.title, reminderObject.description, reminderObject.date, reminderObject.time)
ShowReminder()
res.Write([]byte(`{"status": "success", "message": "Reminder has been set !"}`))
}
func ShowReminder() {
prepareDB()
database, err := sql.Open("sqlite3", "./jarvis.db")
checkErr(err)
rows, err := database.Query("SELECT id, title, description, date, time FROM reminder")
checkErr(err)
var id int
var title string
var description string
var date string
var time string
for rows.Next() {
rows.Scan(&id, &title, &description, &date, &time)
fmt.Println(strconv.Itoa(id) + ": " + title + " " + description + "\nEnd Time : " + date + ":" + time)
}
}
func checkErr(err error) {
if err != nil {
panic(err)
}
}
在go console中生成的输出:
3: learn golang How do I save date and time in database?
End Time : :
答案 0 :(得分:0)
在sqlite表中使用Integer类型,提醒结构中的time属性应更改为time.Time
type reminder struct {
id int
title string
description string
date string
time time.Time
}
为了将表单日期和时间字符串转换为time.Time格式,您应该像这样解析字符串:
layout := "2006-01-02T15:04:05.000Z"
str := fmt.Sprintf("%sT%sZ", r.FormValue("date") , r.FormValue("time"))
t, err := time.Parse(layout, str)