I am trying to make chat room with ajax. Till now I am able to store data in db without page load. And also able to fetch data and display onscreen using ajax. Here is what I did with ajax
$('#chat').submit(function(){
var chatmsg = $("#chatmsg").val(); //chat message from input field
var chatroomid = $("#chatroomid").val(); //hidden input field
$.ajax({
url: baseurl+'User_dash/chatmessage', //An function in ctroller which contains only insert query
type: 'post',
data: {chatmsg:chatmsg, chatroomid:chatroomid},
dataType: 'json',
success: function (argument) {
if(argument['status']){
$("#chatting").append(" <li id='"+getvalue+"'>"+argument['msg']+"</li>."); //Here I am printing chat message which resently submitted in database
}
}
},
error: function (hrx, ajaxOption, errorThrow) {
console.log(ajaxOption);
console.log(errorThrow)
}
});
return false;
});
This method with ajax is working fine. But issue I faced here is that, this display chat message only to current user. Not to other side of user whome message is being sent via chat.
To solve this issue I come up with one idea which doesn't seems to be working as I planed. Here it is how I modified my previous ajax code..
$('#chat').submit(function(){
var chatmsg = $("#chatmsg").val();
$.ajax({
url: baseurl+'User_dash/chat', //controller function which contains insert query, after that select query to fetch chat data from db and store in view
type: 'post',
data: {chatmsg:chatmsg},
dataType: 'json',
success: function (argument) {
if(argument['status']){
//Not doing anything here this time
}
},
error: function (hrx, ajaxOption, errorThrow) {
console.log(ajaxOption);
console.log(errorThrow)
}
});
return false;
});
In updated version of script I thought If I will call a controller function which is storing data in view (chat page) then It will run query and print data without page load.
But with this method, I am getting chat onscreen only after page load, although it is getting submit in db with ajax fine.
Here is controller code for my second method with ajax if needed
public function chat(){
if(!empty($_POST['chatmsg'])){
$chatdata = array('CHAT_ROOM'=>$_POST['chatroomid'],
'VENDOR'=>$this->session->userdata('USER_ID'),
'BUYER'=>49,
'MESSAGE'=>$_POST['chatmsg']
);
$this->db->insert('tbl_chat', $chatdata); //inserting data
}
$data['chatroom'] = $this->db->where('CHAT_ROOM', 1)->get('tbl_chat')->result_array(); //fetching data from db
$this->load->view('userDash/chat', $data);
}
How do I achieve to run insert and then select query and print data on screen without page load?
Where I am getting wrong?
I solved my issue earlier, What I did was, just added this jquery script which keep refreshing (every second) a certain div inside page in which I have put query to fetch chat from db and printing them.
setInterval(function(){
$("#chatting").load(location.href + " #chatting");
}, 1000);
Related
I have an anchor tag and would like its data-id to be sent to a function in the controller which would in turn retrieved data from the database through the model.
However the data is not getting past the controller. The ajax response is showing that the data was sent but controller shows otherwise.
Here is my ajax code:
$(document).on("click",".learn-more",function(){
var sub_item_id = $(this).data("id");
$.ajax({
url:"<?php echo base_url();?>Designs/business_cards",
type:"POST",
data:{sub_item_id:sub_item_id},
success:function(data){
console.log(data);
},
error: function(error){
throw new Error('Did not work');
}
})
});
I had set datatype:"json" but the data was not being sent so I removed the datatype and it worked,the ajax part that is.Or atleast the response showed that data was sent.
My controller code is:
function business_cards(){
$id = $this->input->post('sub_item_id');
$data['quantity'] = $this->subproduct_model->get_quantities($id);
$this->load->view('category/business-cards',$data);
}
My model code is:
public function get_quantities($sub_item_id){
$this->db->select('quantities');
$this->db->where('id',$sub_item_id);
$query = $this->db->get('sub_products');
return $query->result_array();
}
HTML Code which includes the anchor tag
<?php foreach ($results as $object):?>
View Prices
<?php endforeach?>
The data-id is displaying the correct value as per the iteration.
When I check the result array of the model code it is an empty array showing that the $sub_item_id was not passed in the controller. What could be the problem?
I just copied your code and I was able to get the value in the controller.
In your controller function do var_dump($id). Then in your developer tools (F12) check the console. Since you have console.log(data) that var_dump should be in the console. It won't show on the screen.
Some other things to check:
Does your db have records with that ID? Could your db result array be empty because it actually should be?
Are you sure that the data-id actually has a value when you click the tag?
it is not passed to the controller because you forgot to put a parameter inside the function of your controller.
Note: you cannot use input post because you're not using form.
function business_cards($id){ //put a parameter here, serve as container of your passed variable from **ajax**
//$id = $this->input->post('sub_item_id');
$data['quantity'] = $this->subproduct_model->get_quantities($id); //pass the id to your model
$this->load->view('category/business-cards',$data);
}
change your ajax code to this..
$(document).on("click",".learn-more",function(){
var sub_item_id = $(this).data("id");
$.ajax({
url:"<?php echo base_url('Designs/business_cards/"+sub_item_id+"');?>", //pass the id here
type:"POST",
success:function(data){
console.log(data);
},
error: function(error){
throw new Error('Did not work');
}
})
});
i have a problem updating via ajax and eloquent.
I am making an .ajax in jquery :
$('#button-acept').on("click",function(event) {
event.preventDefault()
$.ajax({
url: '{{ URL::to('/')}}/note_acept/{{$note->id}}',
type: 'GET',
dataType: 'json',
success: function(data) {
console.log(data.message);
$('#alert-acepted').show();
$('.navbar-hide').hide();
}
});
});
and the action of the url:
public function acept_note($id){
$note = Noticia::find($id);
$note->acept = true;
$note->save();
return Response::json(array('message'=>"The note has been acepted"));
}
The strange thing it's that when de note id it´s 1 it updates the acept field correctly, but if the note has any other id ( what it's obvious) it doesnt work.
I also tried with the query builder and it updates correcty but i also have a problem about giving points to the users.
This it's working:
DB::table('notes')
->where('id', $id)
->update(array('acept' => true));
but when i try to use other eloquent update at the same function it doesn't work.
I had this problem and its actually simply because you are using an id instead of a class. So when ajax runs, it expect only one element to be clicked. It will only care for the first row of your table.
Instead of using #, use .
Rename your '#button-acept' to '.button-acept'.. In your html, change your button to use class= instead of id=
I hope i'm not too late to answer this!
Cheers!
I'm creating a webproject in pyramid where I'd like to update a table every few secondes. I already decided to use ajax, but I'm stuck on something.
On the client side I'm using the following code:
function update()
{
var variable = 'variable ';
$.ajax({
type: "POST",
url: "/diagnose_voorstel_get_data/${DosierID}",
dataType: "text",
data: variable ,
success: function (msg) {
alert(JSON.stringify(msg));
},
error: function(){
alert(msg + 'error');
}
});
}
Pyramid side:
#view_config(route_name='diagnose_voorstel_get_data', xhr=True, renderer='string')
def diagnose_voorstel_get_data(request):
dosierid = request.matchdict['dosierid']
dosieridsplit = dosierid.split
Diagnoses = DBSession.query(Diagnose).filter(and_(Diagnose.code_arg == str(dosieridsplit[0]), Diagnose.year_registr == str(dosieridsplit[1]), Diagnose.period_registr == str(dosieridsplit[2]), Diagnose.staynum == str(dosieridsplit[3]), Diagnose.order_spec == str(dosieridsplit[4])))
return {'Diagnoses ' : Diagnoses }
Now I want to put this data inside a table with zpt using the tal:repeat statement.
I know how to use put this data in the table when the page loads, but I don't know how to combine this with ajax.
Can anny1 help me with this problem ? thanks in adance.
You can do just about anything with AJAX, what do you mean "there's no possibility"? Things become much cleaner once you clearly see what runs where and in what order - as Martijn Pieters points out, there's no ZPT in the browser and there's no AJAX on the server, so the title of the question does not make much sense.
Some of the options are:
clent sends an AJAX request, server does its server-side stuff, in the AJAX call success handler the client reloads the whole page using something like window.location.search='ts=' + some_timestamp_to_invalidate_cache. The whole page will reload with the new data - although it works almost exactly like a normal form submit, not much sense using AJAX like this at all.
client sends an AJAX request, server returns an HTML fragment rendered with ZPT which client then appends to some element on your page in the AJAX success handler:
function update()
{
var variable = 'variable ';
$.post("/diagnose_voorstel_get_data/${DosierID}")
.done(function (data) {'
$('#mytable tbody').append(data);
});
}
client sends an AJAX request, server returns a JSON object which you then render on the client using one of the client-side templating engines. This probably only make sense if you render your whole application on the client and the server provides all data as JSON.
I am trying to use jQuery for the first time, and my POST function using .ajax is giving me grief.
The POST is successful; my PHP page runs the MySQL query correctly and the newly created user ID is returned. The only problem is that instead of running the 'success' function; it simply loads the PHP page that I called, which simply echoes the user ID.
Here's the jQuery function:
function register() {
$.ajax({
type: "POST",
url: 'sendRegistration.php',
data: dataString,
datatype: 'html',
success: function(response){alert(response);},
complete: function(response,textStatus){console.log(textStatus);},
error: function(response){alert(response);}
});
}
... and the PHP return stuff:
// Create a new send & recieve object to store and retrieve the data
$sender = new sendRecieve();
$custId = $sender->submitUser($userVars);
if ($custId != 0) {
echo $custId;
} else {
echo "Database connection problems...";
}
The database object is created, and then the php page from the 'url' parameter loads, displaying the id that the $sender->submitUser() function returns.
Ideally, I would like it to never display the 'sendRegistration.php' page, but run another js function.
I'm sure there's a simple solution, but I've not been able to find it after hours of searching.
Thanks for your help.
You are likely handling this from a form. If you don't prevent the default form submittal process of the browser, the page will redirect to the action url of the form. If there is no action in form, the current page will reload, which is most likely what is happening in your case.
To prevent this use either of the following methods
$('form').submit(function(event){
/* this method before AJAX code*/
event.preventDefault()
/* OR*/
/* this method after all other code in handler*/
return false;
})
The same methods apply if you are sending the AJAX from a click handler on the form submit button
how are you calling the register() function? It could be the form is being submitted traditionally, you might need to prevent the default action(standard form submit).
So I have a normal form with 1 textarea and two hidden inputs, which I would like to post via AJAX to a CI controller I have that inserts the information into the database.
The problem I'm having is that a) the page action is still called and the output of the controller is displayed and b) because the initial AJAX request is still processed plus the extra loading of the action target the information gets inserted twice.
This is my javascript code:
$(document).ready(function() {
$("#submit-comment").click(function(){
var post_id = <?=$p->id?>;
var user_id = <?=$user->id?>;
var content = $("textarea#content").val();
if(content == '') {
alert('Not filled in content');
return false;
}
$.ajax({
type: "POST",
url: "<?=site_url('controller/comment')?>",
data: "post_id="+post_id+"&user_id="+user_id+"&content="+content,
success: function(msg){
alert(msg);
}
});
});
});
I have tried doing
...click(function(e)... ... e.preventDefault
with no luck.
What am I doing wrong? :P
Thanks
Ps. All the information is processed properly and accessed, it's just the preventing the form which is screwing it up..
Just realised I was using a input type="submit", rather than input type="button".
Doh!