#routes/backend/post.py
from bottle import Bottle, redirect
from controllers.frontend.login import checkLogged

app = Bottle()

@app.route('/')
def get():
    if checkLogged.call():
        from controllers.backend.posts import get
        return get.call()
    else:
        redirect('/login')

@app.route('/', method="post")
def create():
    if checkLogged.call():
        from controllers.backend.posts import create
        return create.call()
    else:
        redirect('/login')

@app.route('/edit/<id>')
def edit(id):
    if checkLogged.call():
        from controllers.backend.posts import edit
        return edit.call(id)
    else:
        redirect('/login')

@app.route('/delete/<id>')
def delete(id):
    if checkLogged.call():
        from controllers.backend.posts import delete
        return delete.call(id)
    else:
        redirect('/login')

@app.route('/paginate/<page>')
def paginate(page):
    if checkLogged.call():
        from controllers.backend.posts import paginate
        return paginate.call(int(page))
    else:
        redirect('/login')

#controllers/backend/posts/paginate.py
import config
from bottle import request
from copy import deepcopy
from models.postdb import paginatedb

def call(page):
    kdict = deepcopy(config.kdict)
    posts = paginatedb.call(page, kdict['maxItemList'])
    items = [post for post in posts]
    
    return {'items':items}

#models/postdb/paginatedb.py
import setConnection

def call(page, amount):
    mycol = setConnection.call("posts")

    posts = mycol.find({},{"_id":0}).skip(page*amount).sort([("datetime", -1), ("_id", -1)]).limit(amount)

    return posts

<!--views/dashboard/admin.tpl-->
% rebase('base.tpl')

<link href="/static/styles/partials/header.css" rel="stylesheet"></link>
<script src="/static/scripts/paginate.js"></script>
<section class='Head'>
    <header class='region'>
        <div class='site-logo'>{{ data['pageTitle'] }}</div>

        <form action='/backend/search' method='post'>
            <select name="select">
                <option>ការផ្សាយ</option>
                <option>ជំពូក</option>
                <option>សៀវភៅ</option>
                <option>អ្នក​ប្រើប្រាស់</option>
            </select>
            <input type='text' name="q" placeholder="Search" required />
            <input type="submit" value='បញ្ជូន'​ />
        </form>

        <div class='logout'><a href='/'>ទំព័រ​មុខ</a> | <a href='/login/logout'>ចេញ​ក្រៅ</a></div>
    </header>
</section>

<link href="/static/styles/partials/body.css" rel="stylesheet"></link>
<section class='Body region'>
    
    %include('backend/menu.tpl')

    <%
    if 'post' in data['route']:
        include('backend/post.tpl')
    elif 'category' in data['route']:
        include('dashboard/category.tpl')
    elif 'book' in data['route']:
        include('dashboard/book.tpl')
    elif 'upload' in data['route']:
        include('dashboard/upload.tpl')
    elif 'user' in data['route']:
        include('dashboard/user.tpl')
    end
    %>

</section>

<link href="/static/styles/partials/listing.css" rel="stylesheet"></link>
<section class='Listing region'>
    %if 'count' in data:
        <div class='info'>សរុប​ទាំងអស់​​មាន​ចំនួនៈ {{data['count']}}</div>
    %else:
        <div class='info'>សរុប​ទាំងអស់​​មាន​ចំនួនៈ</div>
    %end

    <div class='items'>
            %if 'items' in data:
            %for item in data['items']:
            <div class='item'>
                %if data['route'] == 'user':
                <style>
                .Listing .items .item{
                    grid-template-columns: 13% auto 20%;
                }
                .Listing .items .item .thumb{
                    border-radius: 50%;
                }
                </style>
                %end
                <a href="/{{data['route']}}/{{item['id']}}">
                    <img class='thumb' src="{{item['thumb']}}" />
                    %if item['entries']:
                    <img class='play-icon' src="/static/images/play.png" />
                    %end
                </a>
               

                <div class='wrapper'>
                    <a href="/{{data['route']}}/{{item['id']}}">{{item['title']}}</a>
                    <p class="{{item['id']}}"></p>
                    <script>
                        $(".items .item .{{item['id']}}").html(new Date("{{item['datetime']}}").toLocaleDateString()) 
                    </script>
                </div>
                
                <div class='icon'>
                    <a href='/admin/{{data["route"]}}/edit/{{item["id"]}}'><img src='/static/images/edit.png' /></a>
                    <a href='/admin/{{data["route"]}}/delete/{{item["id"]}}'><img src='/static/images/delete.png' /></a>
                </div>
            </div>
            %end
            %end
    </div>
    

    <script>
        var route = "{{data['route']}}"
    </script>

    <div class='load-more'><img onclick='paginate(route)' src="/static/images/load-more.png" /></div>
</section>

//asset/js/paginate.js
var page = 0

function paginate(route){
    $('.load-more img').attr('src', '/static/images/loading.gif')
    page += 1
    
    $.get(`/admin/${route}/paginate/${page}`, function(data, status){
        appendItem(data.items, route)
    })
}

function appendItem(items, route){
    var html = ''
    
    if(items){
        for(var item in items){
            html += `<div class='item'>`
            html += `<a href="/${route}/${items[item]['id']}"><img class='thumb' src="${items[item]['thumb']}" />`
            if(items[item]['entries'] !== ''){
                html += `<img class='play-icon' src="/static/images/play.png" />`
            }
            html += `</a>`
            html += `<div class='wrapper'>`
            html += `<a href="/${route}/${items[item]['id']}">${items[item]['title']}</a>`
            html += `<p class='${items[item]['id']}'></p>`
            html += `<script>`
            html += `$('.items .item .${items[item]['id']}').html(new Date("${items[item]['datetime']}").toLocaleDateString())`
            html += `</script>`
            html += `</div>`
            html += `<div class='icon'>`
            html += `<a href='/admin/${route}/edit/${items[item]['id']}'><img src='/static/images/edit.png' /></a>`
            html += `<a href='/admin/${route}/delete/${items[item]['id']}'><img src='/static/images/delete.png' /></a>`
            html += `</div>`
            html += `</div>`
        }
    }
    $('.items').append(html)
    $('.load-more img').attr('src', '/static/images/load-more.png')
}

GitHub: https://github.com/Sokhavuth/khmerweb-multimedia

Vercel: https://khmerweb-multimedia.vercel.app/