I'm a novice. I would like to pass a value from an HTML button click on the client's browser to a python script on the server to send a value to a PostgreSQL db. I must be missing something. Here's what the javascript, and AJAX in the HTML look like:
<div class="note" id="(Untitled)">
<script type="text/javascript" src="./jquery-2.1.1.js">
$(function () {
$("#one").click(function () {
$("#one").trigger("click", ["1"]);
do_it(1);
});
$("#two").click(function () {
$("#two").trigger("click", ["2"]);
do_it(2);
});
});
function do_it(n) {
$.ajax({
type: "POST",
url: "~/script_for_practice_jun20.py",
datatype: "json",
data: {param: 'n'}
success: success
}),
}
)
Here's the python part that I am using...
def cgi_get_from_ajax(self):
import json
import cgi
data = cgi.FieldStorage()
chosen = data["param"].value
return chosen
def set_choice(self):
process = Name_of_class()
choice = process.cgi_get_from_ajax()
entry = []
if choice == '1':
entry = [1,0,]
else:
entry = [0,1]
return entry
My deadline is approaching. Please help me. Please. Please.
url: "~/script_for_practice_jun20.py",
this is a server friendly url. jquery cant use url with ~ sign.
correct you url, either relative to current page, or absolute from root directory.
Did You Got Any Error In Console?
Related
Alright guys I'm trying to make a filter system for posts using ajax and a select box. I am able to get the value from the select box no problem. But my issue is that when I try to include the selected value in my PHP file it doesn't do anything. I have a file called public_wall.php. This file contains PHP, Javascript, and HTML. How can I refresh this div whenever a user selects a different filter option? Basically I need the selected value to be passed onto my public_wall.php file and then I want to plug it into the PHP function that fetches the posts thats's in the same file and then I want to refresh that same file to display the filtered results. Here is my Javascript code.
$("#postRatings").on("click", function(e) {
selectedRatingFilter = $("#postRatings option:selected").val();
var dataString = "timeFilter="+selectedRatingFilter;
jQuery.ajax({
type: "POST",
url: site_url+"public_wall.php",
data: dataString,
dataType: "json",
cache: false,
success: function(response){
hideSpinner();
jQuery('#postsPagingDiv').remove();
jQuery('#wsc_midbox').html(jQuery(response.htmls).fadeIn(400));
setpost_ids(response.all_post_id);
jQuery('#paging_in_process').val(0);
}
});
});
When the dataType is set to "json" nothing happens. But when it is set to html it prints some javascript code. Please help. The PHP file is too large to include here, but it basically contains PHP, HTML, and Javascript and some PHP functions that do sql queries. What is the best way to achieve a filter mechanism for my setup?
And on the public_wall.php file I want to get the value like so:
$ratingFilter = isset($_REQUEST['timeFilter']) ? intval($_REQUEST['timeFilter']) : 0;
And then plug it into the PHP function that fetches the posts which is in the public_wall.php file also so that I can filter the posts based on the selected value. And then finally I want to refresh the public_wall.php file with the new results. I hope that makes sense. Please help.
This is the output when I set my dataType to "html"
<script>
function refreshPosts() {/* only posts comments likes and count updated. */
var posts = jQuery("#all_post_id").val();
var arrays = posts.split(',');
var dataString = "postids="+posts;
jQuery.ajax({
type: "POST",
url: site_url+"includes/update_wall.php",
data: dataString,
dataType: "json",
cache: false,
success: function(response) {
var x = response;
//############ skip posts whose comments are being read by users
var ExemptedPostsIDs = jQuery("#exemptedPostsID").val();
var ExemptedArray = ExemptedPostsIDs.split(',');
ExemptedArray = ExemptedArray.sort();
//////////////
for (i=0; i<arrays.length; i++) {
var val = 'row'+arrays[i];
if(x[val]) {
if(!inArray(arrays[i], ExemptedArray))
jQuery("#ajax_wall_"+arrays[i]).html(x[val]);
} else {
jQuery('#PostBoxID'+arrays[i]).parent().fadeOut(500);
}
}
}
});
}
function inArray(needle, haystack) {
var length = haystack.length;
for (var i = 0; i < length; i++) {
if(haystack[i] == needle) return true;
}
return false;
}
function refreshWall() {/* loads new posts real time */
var posts = jQuery("#all_post_id").val();
var pageUsing = jQuery('#pageUsing').val();
var dataString = "update_posts=1&postids="+posts+'&pagex='+pageUsing;
jQuery.ajax({
type: "POST",
url: site_url+"public_wall.php",
data: dataString,
dataType: "json",
cache: false,
success: function(response) {
if(response.all_post_id) {
jQuery('#wsc_midbox').prepend(jQuery(response.htmls).fadeIn(400));
setpost_ids(response.all_post_id);
}
}
});
}
</script>
I suggest you keep the form with select element and any JavaScript on the outer frame.
Via ajax, only load the results to a seperate DIVision below that.
When you put an Ajax response to a div, any JavaScript inside it will not be executed.
For the best throughput with Ajax, you should consider loading a json response via Ajax and create HTML elements on the client side. That way it becomes much easier to pull additional variables to front-end JS from server side along with the same request/response.
But that becomes bit difficult when you have a template engine in the back-end. You can still send the HTML content in a json value, so you can easily pass the "all_post_id" as well..
I'm developing JavaScript game. I need to insert some records (such as score, time, level, etc.) to database.
To do It I can use JavaScript in following:
function jsFunction() {
var jsScore = 1000;
window.location.href = "file.php?score=" + jsScore;
}
And in PHP file I could use $_GET['score'];
But looks like this way is not secure, user could change score at address bar directly in browser. Am I wrong?
How could I do It in more secure way?
Maybe sending the data via AJAX post would be more appropriate. Technically the user could still edit it using the dev console but it much less visible.
<script>
function jsFunction() {
var jsScore = 1000;
$.post( "file.php", { score: jsScore})
.done(function( data ) {
alert( "Data Loaded: " + data );
});
}
</script>
You can make use of the jquery library and send the ajax request to the php page. like below.
function jsFunction() {
var jsScore = 1000;
$.ajax({
method: "POST",
url: "file.php",
data: { score: jsScore }
}).done(function(response){
//you can perform some activity after score saved etc..
}).fail(function(response){
//you can perform some activity if score do not saved etc..
})
}
then you can access the score using $_POST['score']; in php.
Try sending data in post using ajax. This will not show data in url and is also secure as the data passes in post.Here is the code
var score = '1000';
var time = '10';
$.ajax({
url: 'file.php',
type: "POST",
data: {score: score, time: time,},
success: function(posData) {
// success code here
},
});
In file.php you can get all parameters in
print_R($_POST);
I am developing a website in which only 1 html page is there in which I first fethch the url & gets the id from url and send it to api using ajax call. On success, I displays data of the given id from url.My code is as-
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#main').hide();
var url = window.location.href;
var formno = url.substr(url.lastIndexOf('/') + 1);
if (formno != 'Login.html') {
var apiUrl = 'http://localhost:801/api/api/Patient/Get';
$.ajax({
url: apiUrl,
crossDomain: true,
contentType: "application/json",
type: 'GET',
data: { formNo: formno },
success: function (result) {
$('#main').show();
alert("Success" + result)
},
error: function (result) {
alert("error :: " + JSON.stringify(result))
}
});
}
});
</script>
when I use the url as abc.in#1 it displays the success alert but I want to give the url in format abc.in/1 at that time it gives
HTTP Error 404.0 - Not Found
The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.
Why it can not find the page? Is there any solution for this?
I want to give plain url as abc.in/1 where 1 is id and which is dynamic.
Is there any solution?
Your browser is probably trying to access document on location abc.in/1, which doesn't exist. You will need some server side logic for this, e.g. php router which will always serve your document, and additonal parameters will be processed by it. abc.in#1 anchor is different type of url parameter, which purpose is to be processed by document or javascript on client side.
I have a page that I have edited after load and what I want to do is get the pages current HTML and pass that off to a PHP script.
I first passed document.documentElement.innerHTML but that ended up including a bunch of computed style garbage at the top which I did not want. After googling around I found I could use ajax to get a copy of the current file on the server and then replace the edited part afterwards.
I can get the copy of the file using this:
var url = window.location.pathname;
var filename = url.substring(url.lastIndexOf('/')+1);
$.ajax({
url: filename,
async: false, // asynchronous request? (synchronous requests are discouraged...)
cache: false, // with this, you can force the browser to not make cache of the retrieved data
dataType: "text", // jQuery will infer this, but you can set explicitly
success: function( data, textStatus, jqXHR ) {
origPage = data; // can be a global variable too...
// process the content...
}
});
Which works fine and gets me the html I expected and see when viewing the page in notepad.
The next step is what I cannot figure out. All I want to do is swap out the innerHTML of a div with an id of 'editor' with what the current value is, so I have tried this:
origPage.getElementById('editor').innerHTML = e.html;
But I get the error "TypeError: undefined is not a function". I must be doing something simple wrong I feel but I don't know the proper formatting to do this. I have tried the following variations:
alert($(origPage).getElementById('editor').innerHTML);
//Different attempt
var newHtml = $.parseHTML( origPage );
alert($(newHtml).getElementById('editor').innerHTML);
//Different attempt
alert($(origPage).html().getElementById('editor').innerHTML);
But I always get "TypeError: undefined is not a function" or "TypeError: Cannot read property 'getElementById' of undefined". How can I do this properly?
EDIT:
Complete page html below:
<!DOCTYPE html>
<html>
<body>
<div id="editor">
<h1>This is editable.</h1>
<p>Click me to start editing.</p>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script type="text/javascript" src="snapeditor.js"></script>
<script type="text/javascript">
var editor = new SnapEditor.InPlace("editor", {onSave: function (e) {
var isSuccess = true;
//var origPage = e.html;
var origPage;
var url = window.location.pathname;
var filename = url.substring(url.lastIndexOf('/')+1);
// Actually perform the save and update isSuccess.
// Javascript:
$.ajax({
url: filename,
async: false, // asynchronous request? (synchronous requests are discouraged...)
cache: false, // with this, you can force the browser to not make cache of the retrieved data
dataType: "text", // jQuery will infer this, but you can set explicitly
success: function( data, textStatus, jqXHR ) {
origPage = data; // can be a global variable too...
// process the content...
}
});
//origPage shows expected html as this point
//alert($(origPage).getElementById('editor').innerHTML);
//alert($(origPage).html().getElementById('editor').innerHTML);
$(origPage).getElementById('editor').innerHTML = e.html;//fails here
alert(origPage);
//alert(newHtml.getElementById('editor').innerHTML);
$.ajax({
data: {html: origPage, docName: 'example1.html'},
url: 'savePage.php',
method: 'POST', // or GET
success: function(msg) {
alert(msg);
isSuccess = true;
}
});
return isSuccess || "Error";
},
onUnsavedChanges: function (e) {
if(confirm("Save changes?")) {
if(e.api.execAction("save")){
//location.reload();
}
} else {
e.api.execAction("discard");
}
}});
</script>
</body>
</html>
It seems that you get the user's changes in a variable - you called the var e.html. That is not a good variable name, BTW. If you can, change it to something like htmlEdited
Question: If you add the command alert(e.html); what do you get? Do you see the HTML after user edits?
If yes, then what you need to do is send that variable to a PHP file, which will receive the data and stick it into the database.
Code to send the data:
javascript/jQuery:
alert(e.html); //you should see the user-edited HTML
$.ajax({
type: 'post',
url: 'another_php_file.php',
data: 'userStuff=' + e.html, //var_name = var_contents
success: function(d){
window.location.href = ''; //redisplay this page
}
});
another_php_file.php:
<?php
$user_edits = $_POST['userStuff']; //note exact same name as data statement above
mysql_query("UPDATE `your_table_name` SET `your_col_name` = '$user_edits' ") or die(mysql_error());
echo 'All donarino';
The AJAX javascript code will send the var contents to a PHP file called another_php_file.php.
The data is received as $user_edits, and then inserted into your MySQL db
Finally, I presume that if you redisplay that page it will once again grab the contents of the #editor div from the database?
This is where you haven't provided enough information, and why I wanted to see all your code.
ARE you populating that div from the database? If not, then how do you expect the page to be updated after refreshing the page?
You would benefit from doing some tutorials at phpacademy.org or a thenewboston.com. Do these two (free) courses and you'll be an expert:
https://phpacademy.org/videos/php-and-mysql-with-mysqli
https://phpacademy.org/videos/oop-loginregister-system
If all you need to do is insert the contents of e.html to replace the #editor div, then try this:
$('#editor').html(e.html);
HOWEVER, you need an event to trigger that code. Are you able to do this?
alert(e.html);
If so, then put the first bit of code at that same spot. If not, we need more information about when your code receives that variable -- that is where you put the $('#editor').html(e.html); statement.
So guys, I made a listbox and if I dblclick to an item the value of it gets saved into "val", but I can't send it to the next PHP File. I also alerted "val" - the value is really saved in it. I also get the function succes displayed in the browser console. what to do?
thanks
My Function:
$(document).ready(function () {
$("option").dblclick(function () {
var lb = document.getElementById("liste");
var val = lb[lb.selectedIndex].value;
$.ajax({
type: 'POST',
url: 'about.php',
dataType: 'HTML',
data: {
aufid: val
},
success: function (data) {}
});
});
});
PHP Code in about.php:
$id = $_POST['aufid'];
Can you try to see what variables are in the $_POST superglobal?
print_r($_POST);
try to set the url your full adrees
url: 'http://myadress.com/about.php',
java script is running on your local computer so it might send the request to you own pc where no about.php exist