Funcionalidad de borrado sin javascript

This commit is contained in:
danoloan10 2023-07-20 23:10:00 +02:00
parent b9c8278246
commit 336140c1fa
7 changed files with 304 additions and 126 deletions

View File

@ -1,114 +0,0 @@
function refreshHeight(elem) {
elem.style.maxHeight = `${elem.scrollHeight}px`;
}
function validate(form) {
var valid = true;
if (form['artist'].value == '') {
form['artist'].parentElement.setAttribute('error',
'Se necesita el nombre del artista');
valid = false;
}
if (form['album'].value == '' && form['track'].value == '') {
form['album'].parentElement.setAttribute('error',
'Se necesita al menos uno de entre «canción» o «áblum»');
form['track'].parentElement.setAttribute('error',
'Se necesita al menos uno de entre «canción» o «áblum»');
valid = false;
}
refreshHeight(form.closest('.action-wrap'));
return valid;
}
function deleteSong() {
var button = this;
var data = button.closest('.data-elem');
var index = data.getAttribute('data-info');
if (confirm('¿Seguro?')) {
fetch(`del?p=${index}`).then(response => {
var wrap = button.closest('.action-wrap');
if (response.ok) {
data.parentElement.removeChild(data);
} else {
button.closest('.action')
.setAttribute('result', 'Error en la solicitud');
}
refreshHeight(wrap);
});
}
}
fetch('../list')
.then(response => {
if (response.ok) {
return response.json();
}
})
.then(list => {
list.forEach((elem, index) => {
var newButton = document.createElement('button');
var title = elem['track'] == undefined ? elem['album'] : elem['track'];
newButton.setAttribute('class', 'data-elem');
newButton.onclick = deleteSong;
newButton.setAttribute('data-info', index);
newButton.innerText = `${elem['artist']} - ${title}`;
document.querySelector('#dellist').appendChild(newButton);
});
})
.catch(reason => console.log(reason));
document.querySelectorAll('.action-wrap').forEach(elem => {
var cajetin = elem.querySelector('.cajetin');
elem.setAttribute('collapsed', 'true');
elem.style.maxHeight = `${cajetin.scrollHeight}px`;
cajetin.onclick = function() {
var form = elem.querySelector('form');
if (elem.getAttribute('collapsed') == 'true') {
refreshHeight(elem);
elem.setAttribute('collapsed', 'false');
} else {
elem.style.maxHeight = `${cajetin.scrollHeight}px`;
elem.setAttribute('collapsed', 'true');
}
}
});
document.querySelectorAll('.form-elem > input').forEach(elem => {
elem.addEventListener('input', () => {
elem.parentElement.removeAttribute('error');
elem.closest('form').removeAttribute('result');
refreshHeight(elem.closest('.action-wrap'));
});
});
const add = document.querySelector('#add');
add.addEventListener('submit', (event) => {
event.preventDefault();
if (validate(add)) {
var xmlHttp = new XMLHttpRequest();
var json = {}
var data = new FormData(add);
data.forEach((v, k) => json[k] = v);
if (!json['date']) {
const date = new Date(Date.now());
const year = `${date.getFullYear()}`;
const month = `${date.getMonth() < 10 ? '0' : '' }${date.getMonth()+1}`;
const day = `${date.getDate() < 10 ? '0' : '' }${date.getDate()+1}`;
json['date'] = `${year}-${month}-${day}`;
}
fetch('add', {
method: 'POST',
body: JSON.stringify(json),
headers: {
'Content-Type': 'application/json'
}
}).then(response => {
if (response.ok) {
add.setAttribute('result', 'Canción añadida');
} else {
add.setAttribute('result', 'Error en la solicitud');
}
refreshHeight(add.closest('.action-wrap'));
});
}
return false;
});

40
main.go
View File

@ -3,6 +3,7 @@ package main
import (
"crypto/sha512"
"encoding/hex"
"errors"
"html/template"
"io"
"net/http"
@ -72,24 +73,48 @@ func AddController(c echo.Context) error {
}
func DelController(c echo.Context) error {
var res Response
var url string
var status int
var pos int
pos, err := strconv.Atoi(c.QueryParam("p"))
pos, err := strconv.Atoi(c.Param("index"))
if err == nil {
err = list.DeleteElement(pos)
}
if err == nil {
res = Response{true, "OK"}
status = http.StatusOK
url = "../.."
status = http.StatusFound
} else {
res = Response{false, "Failed to delete from list"}
status = http.StatusInternalServerError
}
return c.JSON(status, res)
return c.Redirect(status, url)
}
func DelConfirmController(c echo.Context) error {
var entries []*storage.Entry
failed := c.QueryParam("failed")
indexStr := c.Param("index")
index, err := strconv.Atoi(indexStr)
if err == nil {
entries, err = list.GetEntries()
}
if index >= len(entries) {
err = errors.New("Index out of range")
}
if err == nil {
err = c.Render(http.StatusOK, "del.html", struct {
Index int
Elem *storage.Entry
Failed string
}{
Index: index,
Elem: entries[index],
Failed: failed,
})
}
return err
}
func auth(username, password string, c echo.Context) (bool, error) {
@ -122,7 +147,8 @@ func main() {
admin := e.Group("/admin", middleware.BasicAuth(auth))
admin.POST("/add", AddController)
admin.GET("/del", DelController)
admin.POST("/del/:index", DelController)
admin.GET("/del/:index", DelConfirmController)
admin.GET("/", Template("admin.html").TemplateController)
admin.Static("/static", "admin/static")

24
storage/entry.go Normal file
View File

@ -0,0 +1,24 @@
package storage
import "fmt"
type (
Entry struct {
Artist string `json:"artist" form:"artist"`
Linkto string `json:"linkto,omitempty" form:"linkto,omitempty"`
Track string `json:"track,omitempty" form:"track,omitempty"`
Album string `json:"album,omitempty" form:"album,omitempty"`
Cover string `json:"cover,omitempty" form:"cover,omitempty"`
Date JSTime `json:"date" form:"date"`
}
)
func (entry *Entry) Showname() string {
var name string
if len(entry.Track) > 0 {
name = entry.Track
} else {
name = entry.Album
}
return fmt.Sprintf("%s - %s", entry.Artist, name)
}

175
storage/entrylist.go Normal file
View File

@ -0,0 +1,175 @@
package storage
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"sort"
"sync"
"time"
"github.com/gorilla/feeds"
)
type (
EntryList struct {
Filename string
ModTime time.Time
v []*Entry
mu sync.RWMutex
}
)
func (list *EntryList) Len() int { return len(list.v) }
func (list *EntryList) Swap(i, j int) { list.v[i], list.v[j] = list.v[j], list.v[i] }
func (list *EntryList) Less(i, j int) bool {
return time.Time(list.v[i].Date).After(time.Time(list.v[j].Date))
}
func (list *EntryList) modified() (mod bool) {
info, err := os.Stat(list.Filename)
if err == nil {
mod = list.ModTime.Before(info.ModTime())
list.ModTime = info.ModTime()
} else {
mod = true
}
return
}
func (list *EntryList) write() (err error) {
data, err := json.MarshalIndent(list.v, "", " ")
if err == nil {
err = ioutil.WriteFile(list.Filename, data, 0644)
}
if err == nil {
list.ModTime = time.Now()
}
return
}
func (list *EntryList) read() (err error) {
if list.modified() {
list.v = make([]*Entry, 0, len(list.v))
if data, err := ioutil.ReadFile(list.Filename); err == nil {
err = json.Unmarshal(data, &list.v)
}
}
return
}
func (list *EntryList) GetEntries() (entry []*Entry, err error) {
list.mu.RLock()
defer list.mu.RUnlock()
err = list.read()
entry = list.v
return
}
func (list *EntryList) AddEntry(entry *Entry) (err error) {
list.mu.Lock()
defer list.mu.Unlock()
if err = list.read(); err == nil {
list.v = append(list.v, entry)
sort.Sort(list)
err = list.write()
}
return
}
func (list *EntryList) ReadSliceList(oval int, nval int) (entries []*Entry, err error) {
list.mu.RLock()
defer list.mu.RUnlock()
if nval <= 0 {
nval = list.Len()
}
if oval <= 0 {
oval = 0
}
err = list.read()
if err == nil {
if oval >= list.Len() {
entries = nil
} else if oval+nval >= list.Len() {
entries = list.v[oval:]
} else {
entries = list.v[oval : oval+nval]
}
}
return
}
func (list *EntryList) DeleteElement(pos int) (err error) {
list.mu.Lock()
defer list.mu.Unlock()
if err = list.read(); err == nil {
if pos >= 0 && pos < list.Len() {
if pos == 0 {
list.v = list.v[pos+1:]
} else if pos == list.Len()-1 {
list.v = list.v[:pos]
} else {
list.v = append(list.v[:pos], list.v[pos+1:]...)
}
err = list.write()
}
}
return
}
// TODO rutas relativas
func (list *EntryList) GetFeed() (feed *feeds.Feed) {
list.mu.RLock()
defer list.mu.RUnlock()
err := list.read()
if err == nil {
feed = &feeds.Feed{
Title: "danoloan.es muse",
Link: &feeds.Link{Href: "https://danoloan.es/muse"},
Description: "bitácora musical de danoloan",
Author: &feeds.Author{Name: "danoloan", Email: "danolo@danoloan.es"},
}
feed.Items = make([]*feeds.Item, 0, list.Len())
for _, elem := range list.v {
item := &feeds.Item{
Created: time.Time(elem.Date),
}
if elem.Track != "" {
item.Title = elem.Track
} else if elem.Album != "" {
item.Title = elem.Album
}
item.Description = fmt.Sprintf("<p>%s - %s</p>\n", item.Title, elem.Artist)
if elem.Cover != "" {
item.Description = fmt.Sprintf("%s<img src=\"%s\"/>\n", item.Description, elem.Cover)
}
if elem.Linkto != "" {
item.Link = &feeds.Link{Href: elem.Linkto}
} else {
item.Link = &feeds.Link{Href: "https://danoloan.es/muse"}
}
feed.Items = append(feed.Items, item)
}
}
return
}

42
storage/jstime.go Normal file
View File

@ -0,0 +1,42 @@
package storage
import (
"fmt"
"strconv"
"strings"
"time"
)
type (
JSTime time.Time
)
const (
jsTimeLite = "2006-01-02"
jsTimeLayout = "2006-01-02 15:04:05"
)
func (ct JSTime) UnmarshalJSON(b []byte) (err error) {
s := strings.Trim(string(b), `"`)
loc, _ := time.LoadLocation("Europe/Madrid")
nt, err := time.ParseInLocation(jsTimeLite, s, loc)
ct = JSTime(nt)
return
}
func (ct JSTime) MarshalJSON() ([]byte, error) {
return []byte(strconv.Quote(ct.String())), nil
}
func (ct JSTime) String() string {
t := time.Time(ct)
return fmt.Sprintf("%s", t.Format(jsTimeLite))
}
func (ct JSTime) Unix() int64 {
return time.Time(ct).Unix()
}
func (ct JSTime) Local() JSTime {
return JSTime(time.Time(ct).Local())
}

View File

@ -5,7 +5,7 @@
<meta name="viewport" content="initial-scale=1">
<link href="/static/style.css" rel="stylesheet" type="text/css" />
<link href="../static/admin.css" rel="stylesheet" type="text/css" />
<title>splog: zona del admin 😎</title>
<title>muse: zona del admin 😎</title>
</head>
<body>
<h1> Zona del admin 😎 </h1>
@ -35,10 +35,10 @@
</button>
<div class="action">
<div class="scroll">
{{ range . }}
<button class="data-elem">
{{ .Showname }}
</button>
{{ range $index, $elem := . }}
<a href="del/{{ $index }}" class="data-elem">
{{ $elem.Showname }}
</a>
{{ end }}
</div>
</div>

25
templates/del.html Normal file
View File

@ -0,0 +1,25 @@
<!DOCTYPE html>
<html lang="es">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="initial-scale=1">
<link href="/static/style.css" rel="stylesheet" type="text/css" />
<link href="../static/admin.css" rel="stylesheet" type="text/css" />
<title>muse: zona del admin 😎</title>
</head>
<body>
<h1> Zona del admin 😎 </h1>
<p>
<form action="{{ .Index }}" method="post">
¿Quieres borrar <b>{{ .Elem.Showname }}</b>?
<input type="submit" value="Confirmar">
</form>
</p>
{{ if .Failed }}
<p style="color: red;">El borrado falló ☹️</p>
{{ end }}
<footer>
<a href="..">Volver al inicio</a>
</footer>
</body>
</html>