CODEWITHSUNDEEP
phpjqueryajaxcodeignitermodel-view-controller
Just_Do_It
Just_Do_It

Reputation: 821

Getting response from Codeigniter controller method using AJAX/JQuery

This is what am trying to achieve, I have a function in controller that generates a random password and returns the same, on button click I want to capture the generated password and display it in the view (password field). Here is the jquery/ajax call:

$(document).ready(function(){
    $("#generate_password").click(function(){
        $.ajax({
        type: "GET",    
        dataType: 'text',
        url: "http://127.0.0.1/public/admin/content/manufacturers/generate_password",                   
        async:false,
        success: function(resp){
            alert(resp); //this alerts BLANK
        },
        error: function(xhr, textStatus, error){
              console.log(xhr.statusText);
              console.log(textStatus);
              console.log(error);
          }
        });     
    });
});

Controller function:

public function generate_password($length = 9)
{
    return $password_str;
}

  1. Is this the correct way to call controller method?

  2. Why am I getting blank value on alert, even though when printed in php am getting correct value?

  3. Coz it's in the admin area can that be the reason, don't think so but is there any interference because of tokens?

Upvotes: 1

Views: 892

Answers (3)

Just_Do_It
Just_Do_It

Reputation: 821

Well strange but changing the url from:

url: "http://127.0.0.1/public/admin/content/manufacturers/generate_password",

to this:

url: "generate_password",

did the trick and everything is working fine now :)

Thanks everyone for their valuable inputs.

Upvotes: 0

jayantS
jayantS

Reputation: 837

You have to echo the variable in your function in place of return. Because return returns the value to the caller whereas echo sends something to the browser. JavaScript will only understand data which is sent to the browser. So, edit your function code as follows:

public function generate_password($length = 9)
{
    echo $password_str;
}

On the other hand you should be doing this over HTTPS rather than HTTP as mentioned by @rodamn

Upvotes: 0

Konstantin Rachev
Konstantin Rachev

Reputation: 310

In most cases, it is going to work okay, however you can use json format(and just json_encode/json_decode will finish the job for you), not sending via GET method and some other modifications. Are you sure that the url is correct, if you open it in your browser, what happens?

Upvotes: 1

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