AJAX :: Cant Retrieve Data From Db
Apr 23, 2009
I'm trying to use AJAX to load user's profile through a drop-down list on selected user. There are 3 seperate files:
1) view_info.php
2) selectuser.js
3) getuser.php
I tested and found that the value $q did pass from view_info -> selectuser.js -> getuser.php, and value changes correctly as i select different user from the drop-down list. Problem is, it simply can't fetch data from my database using the value $q. I tried debugging it for 3 hours already and is totally out of idea whats wrong with the script. i'm new to AJAX, this is my first script..
[Code]...
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Oct 26, 2011
I have just started to learn about JQuery and wanted to learn how to retrieve data from an API.
I used the Flickr example provided here [url] and just changed the relevant code to point to the 500px api.
<body>
If I launch the following URL I do get the results properly [url]
Here's a sample of what the result looks like:-
I don't get any results when I run my code page. What am I doing wrong?
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May 28, 2011
I am using code like this, that trows error "No transport".
[Code]...
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Mar 2, 2006
We are trying to develop an Engineering application using PHP,
Javascript with Informix as the back-end.
Is it possible to retrieve data using Javascript but by accessing the
Database. Say somebody enters part_no, than using Javascript is it
possible to connect to the part master and retrieve the division and
desc information?
I am not allowed to use the PHP because this will require the user to
insert the part number on the first page (user input page) and then
retrieve the information using PHP and display the info on the second
page (processing page).
I will need this to be done on the same page. That means the info will
need to be retrieved instantly (on the fly).
I think of building a javascript array for the part master table using
PHP but finally decided not to as the table is a huge table (contains
more than 1000000 records).
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Mar 22, 2009
I am having question on how to retrieve data from web page.
There are 'Yes' , 'No' checkbox for different questions on the web page. There are around 50 such questions.
I have to retreive the values submitted by the user by clicking on either Yes or No checkboxes. Then save this data on the server. I have to use Javascript for this.
Since I am new to Javascript I am not getting idea how to implement it.
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Aug 11, 2010
Is it possible to use javascript to retrieve data (text and such) from a webpage? if so how would you go about it?
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Apr 25, 2011
I'm completely new to jQuery and Javascript but I have extensive (10+ years) with Flash and Actionscript.
I want to create a dyanmic tree menu, but I wonder what is the best way to get the data from a MySql database.
Honestly, compared to AS3, the implementation of XML seems very primitive... In As3 you simply move around the xml as if those were objects using E4X. This way: MyXML.myNode.myChild[3].text()
So I wonder, what is the best way to work with data from the DDBB? Is there a better way of using XML with jQuery? Maybe JSON?
How should I approach this?
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Mar 25, 2010
I am new to jquery and i have no freaking idea about jquery. One of the requirement is to use Jquery to datastore and dataretrieval so on my aspx page, a user enters a comment and clicks on "Add" button.When user clicks on Add button, I wan to add comments to database. Once data is added to db, I also want to retrieve same data, user name and current datetime as a dataset and show it on the page. How can I achieve this? I am creating a webservice which accepts "comments" as parameter and stores into database.
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Apr 7, 2009
I'm currently working on a personal site and I'm using a very interesting javascript library written by Jacob from nihilogic.dk. This library allows me to extract some EXIF-data from pictures. My site will serve as a picture site where I will post pictures from my future world trip (one year travel from north america to south america).
My idea is to take pictures with a camera with GPS functionality so all the pictures will be tagged (in the exif) with a latitude and longitude value.
The objective is to post these pictures on my site when I'm on tour and dynamically link them to a google map so visitors and myself can see the exact location where the picture was taken.
The following libraries offered by nihilogic: (binaryajax.js and exif.js) [URL] are able to read EXIF data such as latitude and longitude from the picture.
Since I'm trying to work with jquery I also tried the jquery version which does also read exif data. However the jquery version of the script doesn't read latitude and longitude tags.You can find this script here:jquery.exif.js
My question is it possible to find a solution that will allow reading out the longitude and latitude data with the jquery script? Is it possible to tell me how to enable this data in jquery?
Here's a test sample of my site using this script. click on the little globe icon under the first picture to see google maps and EXIF data.
[URL]
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May 3, 2010
i have a web service at this url http:[url]....i use hotel search file with HotelSearch method and method will retrieve xml file contains the matched data. the varialbe that i made post with it is named : HotelData
the data of the variable is a string file that contains an xml data like this
<HotelsParameters>
<CityID>388</CityID>
<UserName>admin</UserName>[code]....
the data in input filed is the previous xml file
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Oct 7, 2009
i am currently working on aptana studio nokia wrt plugin to develop a mobile widget where i need to retrieve data from database. i've created a java servlet in eclipse to connect and execute query to the ms sql server 2005 database. in aptana, i am using js file and html file, i'm able to connect to the servlet to retrieve and process the data (split the data) into an array and display the retrieved value (array) on screen. but now i need to put the retrieved value (array) into a drop down list for selection, how could i do that?
for the drop down list, i cannot define the list, it need to be able to read from the servlet as the database is updated, it need to reflect.
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Jul 9, 2010
Anybody have a simple example of retrieving a page via ajax?
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Nov 16, 2009
I have an ajax script that I would like to use to retrieve a password hint from a database.Both the ajax script and the php retrieval script are stored on the same domain (we'll call it domain1.com), but the ajax script runs on another domain (domain2.com).All the scripts are working fine, individually, but when I try to integrate them, I'm getting a ready state of 4, but an HTTP status of 0. I've traced the code flow and the retrieval script is being called by the ajax script OK and it's echoing all the right stuff, but it's just not getting back to calling ajax routine.
I've read that an ajax routine can only call a script that resides on the same domain that it runs on. Is this correct and, if so, does anyone know of a work around, because I really need to be able to store the ajax script on domain1 and run it on domain2?If not, then can anyone suggest why I'm getting an HTTP status of 0, when all the individual components are working fine?
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May 21, 2011
I am doing a project now i going to use ajax to retrieve coordinate from the json in html and pin the coordinate onto a point on the map using javascript but the problem is i am only able to use one point on the map can tell me what to add in ? or how should i change it with? it will be nice if u can change the code from the below and show me how
Quote:
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Nov 16, 2009
I have an ajax script that I would like to use to retrieve a password hint from a database.Both the ajax script and the php retrieval script are stored on the same domain (we'll call it domain1.com), but the ajax script runs on another domain (domain2.com).All the scripts are working fine, individually, but when I try to integrate them, I'm getting a ready state of 4, but an HTTP status of 0. I've traced the code flow and the retrieval script is being called by the ajax script OK and it's echoing all the right stuff, but it's just not getting back to calling ajax routine.
I've read that an ajax routine can only call a script that resides on the same domain that it runs on. Is this correct and, if so, does anyone know of a work around, because I really need to be able to store the ajax script on domain1 and run it on domain2?why I'm getting an HTTP status of 0, when all the individual components are working fine?
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Jun 16, 2011
To make cross domain calls when json is required (JSONP) is easy
Code:
$.ajax({
url:"testserver.php",
dataType: 'JSONP',
success:function(json){
[Code]....
I see the XML comming in as a string argument of 'myCallback', but ist never called. Also 'success' is never called!
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May 12, 2009
How would i retrieve multiple (GET) values from a php file using AJAX..
Say i had the following function that ask's for a userID variable - how could i ask for more than one variable instead of just userID? [code]...
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Jan 29, 2010
I load data to a div dynamically $.get(test.php, { cmd: cmd, id: id},function(data){$('#files '').html(data);});
The retrieveddatais in a table and looks like this
test.php
<table class="files_table">
<tr eID='1'>
<td> Content # 1</td>
[Code]....
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Mar 25, 2010
I am trying to use a $.post call in jQuery to check a user's credentials before submitting a form (so I can show errors without reloading the page), but I've run into a problem. I know why it is, because AJAX is not synchronous, but I just can't figure out how to do it.
In my code the script I'm making the call to returns "valid" or "invalid". If the return is "valid", I want to submit the form, if not, show an error message. Here is a simplified version:
$("#my_form").submit( function () {
some_value = "username"
$.post(script_location, {data : some_value}, function (data) {
response = data
[Code]...
This obviously does not work because code is executed quickly one after another and the variable "response" is not yet set when the execution gets to the if statement, since it is set sometime later, asynchronously.
I looked into using functions, callbacks, but nothing seems to work properly, I always run into the same issue. This is probably really simple, i just a complete dunce, please do let me know what is the standard way of doing this properly.
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Sep 8, 2010
I am new to jquery. I am trying to return a string array with two strings back to a jquery ajax call. On success, when I try to retrieve the values, my result is just a string "System.string[]". How do I retrieve the values that I returned from the server in my call back function for success.
"success: function(result, textStatus, XMLHttpRequest) {"
how to retrieve the values of "result"?
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Jan 1, 2012
so, the pseudo code: - on change of input contents, check to see if two input fields are set - if set, update a third field with "loading..." text and a loading gif - use ajax to send data to a url, and get a calculated json response - update the third field with the calculated response
I know I'm getting the correct response, according to firebug: {"pace":"10:00"}
the code:
$('#run_distance').change(function() {
if ($(this).val() != '' && $('#run_time').val() != '')
{
$('#run_pace').val('Calculating Pace…');
[Code].....
how to update the #run_pace input field with the json response.
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Jun 27, 2011
I am using .ajax() to access cross-domain data using JSONP. Because I need to be able to cache the data I want to use a static name for thejsonpCallback function, so I have set the jsonpCallback option in the .ajax() request. However that appears to requires a global function whereas the auto generated function didn't (well maybe it did but that was all hidden from me).
I definitely need to be able to cache the results. Ideally I wouldn't have a global function handling the data. Is there another way to do this? If not what is the best practice way to go about using a global function these days and how do I provide it with the context of the object/module it was called from - which is where the data is needed?
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Jun 2, 2011
have the following code that I thought I could retrieve json_encoded data but I'm just getting "undefined".The json_encoded string from the php array:{"table":null,"id":"2","itemCode":"1003","itemDesc":"Item infor for1003","itemWholesale":"1.99"}]I thought I could "grab" the name of each in the array and output the dataaccordingly. So on success of the ajax post (which does return data) I triedalert(itemData.itemCode); This is on line 10 in the below code snippet. Using this method returns "undefined" and NOT the data 1003 as I would expect.
jQuery Code:
$('#search_results tr').live('click', function() {
var $itemrow = $(this).closest('tr');
[code]....
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Jul 13, 2009
I am still new to jQuery and I am trying to figure something out. I have this code:
[Code]...
This is working fine on itself. What is does is when I click a link it loads data into the following div. When done loading it slides out. But I want to change the appearance of the slide. I have tried to do that like this: $(this).show("slide", { direction: "down" }, 1000); But this doesn't work. When I check firebug it says the following: o.easing[this.options.easing || (o.easing.swing ? "swing" : "linear")] is not a function
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May 31, 2010
i have a series of <select> fields. The first one, via ajax(), generates a 2nd one, based on the first ones' data with the .change() method. there is then a 3rd <select> - who's data will depend on choice of the second one although step 1 works, and i can generate the 2nd one, i still can't generate the 3rd one.
when i test the script on its own, both the 2nd and 3rd <select> fields are fine - but not via the ajax, which leads me to believe that the .change() from the 2nd one, isnt triggering the ajax call - its not being picked up (even the 'hello' alert isnt working).
[Code]...
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