I have a problem with jquery append. This is the code:
$.ajax({
method: "POST",
url:
"/getcars.php",
data: {
model_car: sessionStorage.getItem("model")
}
}).done(function(msg) {
var obj = JSON.parse(msg);
$("#model").empty().append('<option value="-1">Model</option>');
var string_option = "";
Object.keys(obj.model).forEach(function(key) {
string_option += '<option value="' + obj.model[key] + '">' + obj.model[key] + '</option>';
});
console.log(string_option);
$("#model").append(string_option);
})
This code work very well, but not every time. (only the append option not working. This: console.log(string_option) it`s ok every time).
Can you help me, please?
Thank you!!
Looks like you need to put the code to be executed after the document is fully loaded using the "$( document ).ready" jQuery event
$( document ).ready(function() {
$.ajax({
method: "POST",
url:
"/getcars.php",
data: {
model_car: sessionStorage.getItem("model")
}
}).done(function(msg) {
var obj = JSON.parse(msg);
$("#model").empty().append('<option value="-1">Model</option>');
var string_option = "";
Object.keys(obj.model).forEach(function(key) {
string_option += '<option value="' + obj.model[key] + '">' + obj.model[key] + '</option>';
});
console.log(string_option);
$("#model").append(string_option);
})
});
You can learn more about this on the below link
https://api.jquery.com/ready/
Try to check the response on Ajax success sometimes it happens due to malformed JSON is sent back with a 200/OK
One possible problem could be that you run the .append() before DOM is loaded. If this is the problem you can try 2 methods:
put this javascript code inside footer.
add to your code:
$(document).ready(function(){
//... your ajax request
})
Related
I am new to Coding and I got stuck for hours solving this problem:
The response from AJAX is a Json two-dimesional array jqXHR[][] the first index
describes each product id, the second one holds product details like prices etc.
So all i want to is to iterate through the first index by using the button "New_Suggestion" and to update the html content in the "result_wrapper".
The response works fine, but updating the html content doesn't work at all.
Thank you for your help.
$.ajax({
type: "POST",
url: "productsuggestion.php",
data: "criteria1=" + crit1 + "&criteria2=" + crit2 + "&criteria3=" + crit3 + "&criteria4=" + crit4 + "&criteria5=" + crit5,
dataType: "json",
success: function(jqXHR) {
var sug = 0;
$('#New_Suggestion').on('click', function() {
sug = sug + 1
});
$("#result_wrapper").html(
'<div id="prod_name">' + jqXHR[sug][0] + '</div> <br>' +
'<img id="prod_pic" src="' + jqXHR[sug][4] + '">' +
'<div id="prod_price">' + jqXHR[sug][2] + '</div> <br>'
);
}
});
Firstly, your "click" handler just increments a variable when it's clicked. It doesn't touch the output at all.
Secondly, every time the ajax runs, you add another click event handler to the button, without removing the previous one(s). It's easier to declare this outside the ajax context, and set a global variable for the suggestion count.
Something like this, I think (untested):
var sugCount = 0;
var sugData = null;
$.ajax({
type : "POST",
url : "productsuggestion.php",
data : "criteria1="+crit1+"&criteria2="+crit2+"&criteria3="+crit3+"&criteria4="+crit4+"&criteria5="+crit5,
dataType: "json",
success: function(data){
//reset global data after each ajax call
sugCount = 0;
sugData = data;
writeSuggestions(sugCount, sugData); //output the initial set of suggestions
}
});
$('#New_Suggestion').on('click',function(){
sugCount = sugCount + 1;
writeSuggestions(sugCount, sugData); //output updated suggestions
});
function writeSuggestions(count, data)
{
$("#result_wrapper").html('<div id="prod_name">'+data[count][0]+'</div> <br>'+
'<img id="prod_pic" src="'+data[count][4]+'">'+
'<div id="prod_price">'+data[count][2]+'</div> <br>');
}
This is my first attempt to databind an html control via ajax. I check/debug my ajax call and the data are retrieved OK, but the do not appear in the select option. My javascript is located at the bottom of my aspx page. What's the problem
$(function () {
$.ajax({
type: "POST",
url: "psHlp.asmx/getDistricts",
data: "{}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (msg) {
$("#District").empty();
$.each(msg.d, function () {
$("#District").append($("<option></option>").val(this['Value']).html(this['Text']));
});
},
error: function () {
alert("Failed to load districts");
}
});
});
This is my select option which is located at the beginning of my page
<div class="col-sm-3 col-xs-12 ffield">
<select id="District" style="display: none;">
</select>
</div>
Try using like this on your each loop.
var options;
$.each(msg.d, function () {
options += '<option value="' + this["Value"] + '">' + this["Text"] + '</option>';
});
console.log(options);
$("#District").append(options);
You need to specify (index,value) params in your $.each callback function and use value to access the iterated elements. Something like this.
$.each(msg.d, function (index,value) {
$("#District").append("<option value='" + value.Value + "'>" + value.Text + "</option>");
});
Finally I found the solution. All the above suggestions were correct. The problem occurred because I'm using bootstarp js/css (customer's designer provided the layout), so I need to rebuild the multiselect option after the append.
var options = "";
$.each(response.d, function () {
options += '<option value="' + this['Value'] + '">' + this['Text'] + '</option>';
});
$("#Town").append().html(options);
$("#Town").multiselect('rebuild');
Hope this will help at least one person :)
I've researched this in depth on stackexchange and I don't think I am making a 'common' mistake, and the other answers have not solved this.
The problem is I am trying to append data to a DEFINITELY existing div of a certain ID. What I DO know is that the div is dynamically generated, and that is probably why it is hidden.
Despite using jquery on I cannot seem to get jquery to find the particular div.
Here is the code:
$(document).ready(function() {
function example_append_terms(data) {
var sender_id = data['sender_id'];
$.each(data, function(k, v) {
if (k != 'sender_id') {
html = '<span data-lemma="' + v['key'] + '" class="lemma">' + v['name'] + '</span>';
$('#' + sender_id + ' .lemmas').append(html);
}
});
}
function example_get_options(data) {
$.ajax({
url: '/example/',
type: 'post',
data: data,
success: function(data) {
//alert(JSON.stringify(data))
example_append_terms(data)
},
failure: function(data) {
alert('Got an error dude');
}
});
return false;
}
$(document).on('click', ".example-synset-option", function() {
var synset = $(this).data('name');
var sender_id = $(this).attr('id')
example_get_options({
'synset': synset,
'sender_id': sender_id,
});
});
});
On clicking a certain div, an action is fired to "get options" which in turn runs an ajax function. The ajax function runs the "replacer" function example_append_terms.
Having tested up to example_append_terms the .each iteration is definitely working. But when I did tested $('#' + sender_id + ' .lemmas').length I continue to get 0.
Where is this jquery newb going wrong?
I fixed it by changing stuff...
For some inexplicable reason fetching the data attribute worked better than the id..
function intellitag_append_terms(data) {
var sender_id = $('*[data-location="'+data['sender_id']+'"] .lemmas');
$.each(data, function(k, v) {
if (k != 'sender_id') {
html = $('<span data-lemma="' + v['key'] + '" class="label label-primary lemma">' + v['name'] + '</span>');
html.appendTo(sender_id)
//$('#' + sender_id).append(html);
}
});
}
So the problem is that I'm loading JSON files from url into my html and it's working perfectly besides for the fact that it shows the information twice..
Does anyone know why this is the case?
Here's the Jquery/Javascript code that I use to load the JSON into my html.
$.ajax({
url: 'http://datatank4.gent.be//bevolking/totaalaantalinwoners.json',
dataType: 'json',
type: 'get',
cache: false,
success: function(data) {
i = 0;
var access;
var url;
$(data).each(function(index, value) {
wijkname = value.wijk;
year = value.year_2010;
i++;
$('#pagewrap2').append(
'<div class="dataond col col-xxs-12 col-md-3"> <h2> ' + wijkname + '</h2><p>' + year + '<div id="maps">' + "<iframe width='100%' height='100%' frameborder='0' scrolling='no' marginheight='0' marginwidth='0' src='https://maps.google.com/maps?&q="+ encodeURIComponent( wijkname + ' ' + 'Gent' ) +"&output=embed'></iframe>" + '</div>' + '</p></div>'
);
});
}
});
First check the response of this ajax call.
If the response look fine maybe you're making the ajax call twice.
For example when you add an event listener twice. (add off() function before click() if you're using jquery)
I've found the problem. Really stupid but I linked my file twice in my index.html...
Thanks everyone for your replies.
<script type="text/javascript">
$(document).ready(function() {
var categoriesId = [];
$.getJSON("http://datatank4.gent.be//bevolking/totaalaantalinwoners.json", function(data) {
$.each(data, function(index, item) {
categoriesId.push(item.wijk);
}
);
for (i = 0; i < categoriesId.length; i++) {
alert(categoriesId[i]);
var newInProductPriceDiv = document.createElement('div');
newInProductPriceDiv.setAttribute('id', "recentlyViewedProductPriceDiv" + i);
newInProductPriceDiv.setAttribute('class', "subcategoryListPriceDiv");
newInProductPriceDiv.innerHTML = newInProductPriceDiv.innerHTML + categoriesId[i];
document.getElementById('pagewrap2' + i).appendChild(newInProductPriceDiv);
}
}
);
}
);
</script>
if you have any confusion then tell me ok . and if you not get your exactly output then also tell me.
I have this code,
$(".delete").live("click", function () {
alert("!");
var self = $(this);
var loadUrl = $(this).attr('href');
var interestParents = self.parents('div:eq(4)').attr("id");
$.ajax({
type: "POST",
url: loadUrl,
data: "isAjax=1"
}).done(function (msg) {
self.parent().parent().parent().parent().parent().fadeOut('fast', function () {
$(this).remove();
});
//console.log($("#"+interestParents).load(site_url+"my_profile/interests " + "#" + interestParents).fadeIn('fast'));
//$("#UL_" + msg + "items").load(site_url + "my_profile/interests " + "#UL_" + msg + "items").fadeIn('fast');
$("#large_buttons").load(site_url + "my_profile #large_buttons > *").show();
});
return false;
});
and I cannot for life of me work out why the .load does not load the data into the large_buttons div, it definatly exists on the page, and it works in every other browser but IE8.
Check to make sure that the page you are "load"ing (my_profile) is valid HTML (no misplaced end tags, unclosed tags, etc). I had an issue like this with IE8 because the markup I was trying to load was invalid. Most browsers managed to interpret the bad markup, but IE8 failed.
An HTML validator may help you.
have you tried this way:
$("#large_buttons").show().load(site_url + "my_profile #large_buttons > *");
although i am unable to see where is the site_url variable, if this is a type then you should use this
$("#large_buttons").show().load(loadUrl + "my_profile #large_buttons > *");