I'm trying to add a "loader" while my flask application runs a task.
Here is my HTML for for my button
{% extends "base.html" %}
{% block head %}
{# <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='styles/leaf.css') }}"> #}
{% endblock %}
{% block content %}
<div id="loader"></div>
<div id="vo_budget_file_settings">
{# Upload Final CRO Budget File #}
<p>Please upload the final CRO budget File</p>
<form class="" action="/generatecleanbudgetfile" method=POST enctype=multipart/form-data>
<input type="file" name="data_file" accept=".xls, .xlsx, .xlsm"/>
<input type="submit" value="Begin Format" onclick="loading();"/>
</form>
</div>
<script type="text/javascript">
function loading(){
$("#loader").show();
}
</script>
{% endblock %}
Here is the CSS that I've added:
#loader {
border: 16px solid #f3f3f3; /* Light grey */
border-top: 16px solid #3498db; /* Blue */
border-radius: 50%;
width: 120px;
height: 120px;
animation: spin 2s linear infinite;
}
#keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
Any ideas on how to call this correctly?
Make it visible from the start, without ever showing it with javascript. Then hide it with js like so:
$(document).ready(() => {
$("#loader").hide();
})
EDIT: I now realize you said on button click in the title. I am assuming you want to hide the loading screen on button click? If not correct me in a comment. Otherwise, use this code:
$("#button").click(() => {
$("#loader").hide();
})
P.S.
Your script should be at the bottom of the body, and your CSS and JS (and my code) reference #loader, when the body has <div id="loading">
Related
I am working on a web app and I am using Bulma for first-time, I don't know why but I am getting a very unexpected bugs, that is, my background color i.e black doesn't seem to be appear onto the page.
here is my CSS code:
{% extends 'base.html' %}
{% block title %}
Home Page
{% endblock title %}
<style>
body{
background-color: black;
}
</style>
{% block content %}
{% endblock content %}
in base.html from which I have extended this page, there too I have wrote this following css:
<style>
body{
background-color: black;
color: white;
background-size: 100% 100%;
width: 100%;
height: 100%;
}
</style>
Please help me with this, Thanks in advance~
EDIT:
I found out that whenever I put any kind of content in the block content section the background color gets painted. I mean let's say I put <h1> Hi </h1> inside the block content, then the background would get painted behind it.
I found out the answer
Just put this in your css (over the whole body)
width: 100vw;
min-height: 100vh;
1. Background:
I am new to Flask, JavaScript or web development. I am currently trying to build an interface for a project of mine, which does extract the linear area of a curve. So far so good, my python code works: It reads data from an .csv or .xlsx file and returns the area, it's slope and plots for each sample. Now I am desperately trying to put them in some kind of user interface, so you can decide which ones to plot. I recognized image-picker (github.com/rvera/image-picker) as a suitable tool for the job, so I decided to implement it into my project. For this I started to build a simple test-page with the image-picker.
2. Problem
Unfortunately, I wasn't able to achieve this. Instead of seeing a list of the image names followed by the pictures, I can only get the list. I will add screenshots of the outcomes.
3. My Code
The project structure
Both, image-picker.css and image-picker.js are taken from the image-picker github
base.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="{{ url_for('static', filename = 'css/main.css') }}">
{% block head %} {% endblock %}
</head>
<body>
{% block body %} {% endblock %}
</body>
</html>
img_picker.html
{% extends 'base.html' %}
{% block head %}<title>Image Picker</title> {% endblock %}
<meta charset="utf-8">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='image-picker.css') }}">
<script src="{{ url_for('static', filename='image-picker.js') }}" type="text/javascript"></script>
{% block body %}
<select multiple="multiple" class="image-picker show-html">
<option data-img-src='http://placekitten.com/220/200' value='1'>Cute Kitten 1</option>
<option data-img-src='http://placekitten.com/180/200' value='2'>Cute Kitten 2</option>
<option data-img-src='http://placekitten.com/130/200' value='3'>Cute Kitten 3</option>
<option data-img-src='http://placekitten.com/270/200' value='4'>Cute Kitten 4</option>
</select>
<script> $('.image-picker').imagepicker();
</script>
{% endblock %}
app.py
from flask import Flask, render_template
app = Flask(__name__)
#app.route('/')
def index():
return render_template('img_picker.html')
if __name__ == '__main__':
app.run()
main.css
body{
margin: 0;
font-family: sans-serif;
}
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 100%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: #dddddd;
}
How it looks
How it should look
(The website I took the example from: https://rvera.github.io/image-picker/)
If you need any more information, I will be glad to provide it. There has been another question regarding this problem before, but it wasn't solved.
Thanks for any help,
Carroll
I have linked my css file in 'main/static/css/style.css' and my pages are in 'main/templates/main/pages.html'.
But the CSS is not working for some pages such as the h2 tag is not taking the style.
base.html
{% load static %} <link rel="stylesheet" href="{% static 'css/style.css' %}">
privacy.html
{% extends 'main/base.html' %}
{% block content %}
<div class="main">
<h1><b>Privacy</b></h1>
<div style="height:35px" aria-hidden="true"></div>
<div class="text_para">
<h2 class="h2_privacy">Mission</h2>
<p>paragraph<p>
.......
style.css
.main {
-ms-flex: 70%; /* IE10 */
flex: 70%;
background-color: white;
padding: 20px;
}
.text_para {
margin-right: 5%;
text-align: justify;
}
/*heading h2 for privacy page*/
.h2_privacy {
color: black;
font-family: 'Lucida Calligraphy', sans-serif;
}
First you need to make sure CSS is loading properly (e.g. check from network section of browser dev tool).
Second you need to make sure the element is in the page and has the correct class matching CSS file.
Check these two and update your question if you didn't find the problem.
Sorry guys I was inactive and thank you.
And yes I have found the answer on stack overflow itself, actually I don't close my tabs so I think every time I refresh the page it does not refresh totally.
I just had to do ctrl + f5 to bypass the cache and the css would load with the updates.
I am using django-easy_pdf to reder pdf for my reports and would like to know how to display a page footer.
In the django-easy_pdf's source code this piece of code is used to display the page number
<div id="footerContent">
{%block page_foot%}
<pdf:pagenumber />
{%endblock%}
</div>
What I would like to know is:
How to display the footer properly
Start with page number 1
As I have copied the code, it does not display as a footer and the page starts with 0
What am I missing?
UPDATE
I tried this code from here but I can't make it work, seems useful though
<html>
<head>
<style>
.footer { position: fixed; bottom: 0px; }
.pagenum:before { content: counter(page); }
</style>
</head>
<body>
<div class="footer">Page: <span class="pagenum"></span></div>
</body>
</html>
UPDATE 2
I now know what I did wrong, I was missing the #page css and that is why It's not working, I only have the #frame footer
The correct CSS:
#page {
size: {{ pagesize }};
margin: 1cm;
#frame footer {
-pdf-frame-content: footerContent;
bottom: 0cm;
margin-left: 18cm;
margin-right: 0cm;
height: 1cm;
}
}
Then just call it normally(the first snippet)
To display footer correctly make sure that in your template in css styles you have:
#frame footer {
-pdf-frame-content: footerContent;
}
-pdf-frame-content should be pointig to id of your footer container.
You can add the next code in your tempate:
{%block page_foot%}
<div style="display: block;margin: 0 auto;text-align: center;">
page: <pdf:pagenumber />
</div>
{%endblock%}
I am attempting to set up django view for my web application which redirects the page once a file upload is complete, and the status bar showing the upload progress reaches 100%. I have looked around online and attempted to do this in several ways but nothing seems to be working. When I use
render(request, 'template_name')
The application simply returns the plain text of 'template_name' to the console rather than rendering it in the browser window. The original page of the loading bar stays in place after this plain text is returned.
My view looks like the following
def barUpdate(request):
importid = request.GET.get('impid')
response_data = {}
import_status_dict = get_import_status(importid)
status_id = import_status_dict['returnval']
import_status_info = import_status_dict['data_row']
import_status_info = import_status_info[0]
total_rows = import_status_info['total_data_rows']
rows_analyzed = import_status_info['number_of_rows_analyised']
if status_id != 2:
if (rows_analyzed != None and total_rows != None):
percent_complete = int((float(rows_analyzed)/total_rows)*100)
response_data['value'] = percent_complete
if 'percent_complete' in locals():
if response_data['value'] >= 100:
#return render(request,'statustool/completed.html',{'importid':importid,'username':username,'failedparameters':new_failed_param_group,'failedsources':failed_sources,'failedparametergroups':failed_parameters_group,'failedsitegroups':failed_sites_group,'sources':get_sources(), 'failedunits':failed_units})
#Right here I would like to render a new template in my browser, although this is just a dummy template I created for testing
return render(request,'statustool/test.html')
response = HttpResponse(json.dumps(response_data), content_type="application/json")
return response
else:
response_data['value'] = 0
response = HttpResponse(json.dumps(response_data), content_type="application/json")
return response
My dummy template is the following which contains no variables to be passed in from the view
<html>
<head>
test
</head>
<body>
<h1>Finished with data insert!</h1>
</body>
</html>
Is there something I am missing?
If it helps, the current page with the status bar looks like the following and uses a javascript function called status to make GET requests every second to find the upload status for the status bar
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>CACW: Status - Processing</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<!-- Le styles -->
<link href="{{ STATIC_URL }}css/bootstrap.css" rel="stylesheet">
<link href="{{ STATIC_URL }}css/boostrap-responsive.css" rel="stylsheet">
<style>
body,html{
padding-top: 30px; /* 60px to make the container go all the way to the bottom of the topbar */
}
.container{
min-height:100%;
}
.footer{
height:40px;
margin-top:-25px;
}
.barcontainer{
width: 100px;
color: blue;
}
progress {
background-color: whiteSmoke;
border-radius: 2px;
box-shadow: 0 2px 3px rgba(0, 0, 0, 0.25) inset;
width: 250px;
height: 20px;
position: relative;
display: block;
}
</style>
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}js/d3examples.js"></script>
<script type="text/javascript">
var importNum = {{importid}}
function status(){
var barProgress = window.setInterval("getProgress(importNum);", 1000);
}
var url=api_server_address+"import/status/update/";
var getProgress = function(importid) {
$.ajax({
url: "https://cacw.luc.edu/status/update/",
data: { impid: importid },
type: "GET",
dataType: "json"
})
.done(function(data){
$('#progressBar').val(data['value']);
console.log(data);
});
}
</script>
</head>
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="brand" href="#">CACW</a>
<div class="nav-collapse collapse">
<ul class="nav">
<li class="active">Home</li>
<li>Wiki</li>
<li>Contact</li>
</ul>
<a class="btn btn-primary pull-right" href="/logout">Logout</a>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
<body onload="status({{importid}});">
<div class="container">
<div class="page-header">
<p><h2>Import {{ importid }} Status.</h2></p>
{{percent_complete}}
<progress id="progressBar" value={{status}} max="100"></progress>
</div>
</div>
<div class="footer">
<div class="navbar-fixed-bottom">
<hr>
<div class = "container" style="text-align: center">
<p> Help - Information - Contact - Wiki <p>
<img src="{{ STATIC_URL }}img/luc_logo.jpg"></img>
</div>
</div>
</div>
</body>
</html>
Since you are just getting the data in an AJAX call, this will never update your page (from the server side). What you can do is add a flag/object/parameter to your servers response to indicate when the upload is done, then on the client side, redirect to that location when the upload is finished.
Server side:
# code shortened a bit... continues from after line defining percent complete
response_data['value'] = percent_complete if 'percent_complete' in locals() else 0
response_data['done'] = response_data['value'] >= 100
return HttpResponse(json.dumps(response_data), content_type="application/json")
Client Side:
var getProgress = function(importid) {
$.ajax({
url: "https://cacw.luc.edu/status/update/",
data: { impid: importid },
type: "GET",
dataType: "json"
})
.done(function(data) {
if(data['done']) {
// I forget if this is how to do a redirect but it's where you put it
location.href('whatever/your/url/is');
} else {
$('#progressBar').val(data['value']);
console.log(data);
}
});
}