FreeCodeCamp/HelpBackEnd

Get help on our Back End Development projects

MohameddAli

@MohameddAli

hello

any one can help ??
when i go for change password he tell me Failed to Change Password !!

  // Check whether the Submit Button is Clicked or not
  if(isset($_POST['submit']))
  {
    //echo "Cliked";
    //1. Get the Data From Form
    $id=$_POST['id'];
    $current_password = md5($_POST['current_password']);
    $new_password =md5($_POST['new_password']);
    $confirm_password  = md5($_POST['confirm_password']);
    //2.Check whether the user with current id and password exist or not
    $sql = "SELECT * FROM tbl_admin WHERE id=$id AND password='$current_password'";
    // Execute the Query
    $res = mysqli_query($conn,$sql);
    if($res==true)
    {
      //Check whether data is avilable or not
      $count = mysqli_num_rows($res);
      if($count==1)
      {
        //User Exist and Password Can be Changed
        //echo "User Found";
        //Check whether the new password and confirm match or not
        if($new_password==$confirm_password)
        {
          //Update the Password
          //echo "Password Match";
          $sql2 = "UPDATE tbl_admin SET passowrd = '$new_password' WHERE id=$id";
          //Execute the Query
          $res2 = mysqli_query($conn, $sql2);
          //Check whether the query executed or not
          if($res2==true)
          {
            //Display Succes Message
            //Redirect to MNG Admin Page with Success Message
            $_SESSION['change-pwd'] = "<div class='success'>Password Changed Successfully.</div>";
            //Redirect the User
            header('location:'.SITEURL.'admin/mng-admin.php');
          }else{
            //Display Erorr Message
            //Redirect to MNG Admin Page with Erorr Message
            $_SESSION['change-pwd'] = "<div class='error'>Failed to Change Password.</div>";
            //Redirect the User
            header('location:'.SITEURL.'admin/mng-admin.php');
            }
         }
         else
         {
          //Redirect to MNG Admin Page with Erorr Message
          $_SESSION['pwd-not-match'] = "<div class='error'>Password Did Not Match.</div>";
          //Redirect the User
          header('location:'.SITEURL.'admin/mng-admin.php');
        }
      }else{
        //User Does not Exist Set Message and Redirect
        $_SESSION['user-not-found'] = "<div class='error'>User Not Found.</div>";
        //Redirect the User
        header('location:'.SITEURL.'admin/mng-admin.php');
      }

    }
    //3. Check whether the New Password and Confirm Password Match or Not

    //4. Change Password if all above is true

  }


?>

Rok Z

@Rock-son

@MohameddAli error in UPDATE tbl_admin SET passowrd

-> password

rajirashed2010

@rajirashed2010

hello everyone

i'm new here pls i have a problem about my coding

can someone help me out pls pls

Uncaught SyntaxError: Identifier 'tittle' has already been declared

javascript

Vanessa Correia

@wordlesspirate

not entirely sure without a snippet of code to look at, @rajirashed2010 , but if I had to guess, there must be a variable in our code that you are reusing. something along these lines:

let name = "a"

let name = "b"

let name = "b"
    ^

SyntaxError: Identifier 'name' has already been declared

rajirashed2010

@rajirashed2010

thanks @wordlesspirate not that ma.

@wordlesspirate pls how can i sent my code to you so u can play around it together please

Vanessa Correia

@wordlesspirate

if it is not too long of a piece of code, i would say you can paste here. just make sure to use quotations code inside so your code formats into a snippet, makes it a little easier to read.

quotations i mean these: ```. at the start and end of your code block.

Ashref

@Asher2016

guys anyone has experience with apache tomcat !

John Melody Me

@johnmelodyme

Hey guys I use cheerio to scrape this table but it return nothing. Did I somehow did wrong ?

<table class="table trackTable">
                    <thead>
                            <tr>
                                <th colspan="4">Consignment No: MY37011088606</th>
                            </tr>
                        <tr>
                            <th>Consignment No</th>
                            <th>Date &amp; Time</th>
                            <th>Status</th>
                            <th>Location</th>
                        </tr>
                    </thead>
                    <tbody>
                                <tr>
                                    <td>MY37011088606</td>
                                    <td>03/07/2020 14:58:43</td>

                                        <td><b>Delivered</b></td>

                                    <td>Butterworth</td>
                                </tr>
                          .....
                </table>

and my code was

$ = cheerio.load(response['data']);

            $.html();

            $('.table#trackTable').each((index, element) => {
                if (index === 0) return (true);

                console.log(element)
            });

Any idea ? is the naming of the selctor wrong?

in the browser i did

$(".table > tbody:nth-child(2)").each(function(i,item) { console.log(item.innerText) });

and it return something , but cheerio doesn't

2 replies

Zerka1982

@Zerka1982

Hi guys !
Anybody here to support me on one task
If user inputs an email for example@gmail.com , I would like to force the user not to add any extra letters after the .com
is there a way to do this please?

1 reply

schawnnara jiri

@schawnnaraj_gitlab

need help

michaelnicol

@michaelnicol

What websites do you guys develop code in? I use repl.it unless I am working with webpages, then I use codepen. Repl.it always seems to have server issues and I seem to loose work often due to frequent down times

Tunde Oretade

@tundeiness

hi guys. I need help. I have this Api that I am trying to consume: https://torre.bio/api/bios/ and I usually get this error

Access to XMLHttpRequest at 'https://torre.bio/api/bios/john' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

on close investigation at the network tab I found out that any time I hit the above url I am being redirected to https://bio.torre.co/api/bios. Which seems to show that I may need a proxy server backend to handle access to this url. I have searched and nothing comes close to a solution. A stackoverflow respose "https://stackoverflow.com/questions/70114502/access-to-xmlhttprequest-at-from-origin-http-localhost4200-has-been-bloc " is a close answer but it was implemented with .Net. My app codebase is in react and I need help on setting up a proxy server to consume the API above. Thanks.

Nicolas Ramirez

@kamatheuska

Hey everyone! I would like to get deep knowledge of nodejs and backend concepts. I have been working as a software dev for a 5 years already, but mostly focusing on frontend. Can you give me some hints on what I need to know to become a really good backend/nodejs developer?

Dan Stockham

@DanStockham

@kamatheuska the best thing I can suggest is getting an understanding how the http web server frameworks for nodejs work and getting comfortable building things with them

@kamatheuska NodeSchool is a good place to start but FCC has a pretty good course that immerses you enough that you can start building things efficiently

@tundeiness It is very possible that the api you're trying to reach doesn't allow for http or unsecured connections (hence, your localhost instance is unsecure)

Dan Stockham

@DanStockham

@tundeiness Either I would find way to put your local instances on port 443 which means self-signing a certificate or setup a secure backend server that acts as a façade to your api you're trying to consume.

Chris Cullen

@123xylem

Hi Guys.
Wondering how to take variable set by Ajax in functions.php and use it as an argument in my page.php onclick function

Tunde Oretade

@tundeiness

@tundeiness Either I would find way to put your local instances on port 443 which means self-signing a certificate or setup a secure backend server that acts as a façade to your api you're trying to consume.

true. Solved it.

Matthew

@ChaplainsBud

Hi all, has anyone handled an exception with a template language? I'm using Freemarker, and my goal is to handle a null exception if there is no image to be rendered. However, I don't know what I'd return if it is null -- should I create a statement, "No image provided?"

Nevermind, I didn't realize I should do nothing in response.

Ozenzamy-Spark

@Ozenzamy-Spark

Hi all , please i have a question about the Iterative implementation of Binary Search

This is the function i create in c:

int BinarySearch(int arr[], int l, int r, int x) { while(l <= r) { int mid = l + (r - l) / 2; printf("%d\n", mid); if(arr[mid] == x) return mid; if(arr[mid] > x) r = mid - 1; else l = mid + 1; } return -1; }

This is my main function :

int main() { int arr[] = {1,2,3,5,16,15,20}; int n = sizeof(arr) / sizeof(arr[0]); int x = 16; int result = BinarySearch(arr, 0, n-1, x); (result == -1) // WE CALL THIS ternary operator. ? printf("Element is not present in array") : printf("Element is present at index %d", result); return 0; }

The question is: when i search 16 the function return -1.
If you see the number 16 is on the list any help please ??

Stephen James

@sjames1958gm

Your algorithm depends on a sorted array and 15 is out of order

Ozenzamy-Spark

@Ozenzamy-Spark

Thanks for your replay

Matthew

@ChaplainsBud

Anyone refactor .jsp to .hbs here?

JackeL

@jackel27

UDP packets are confusing! How can I turn the raw data into readable / usable ?

Tapesh Patel

@tapesh02

Hi, I have a question,
How to add watchlist/wishlist item to MongoDB using nodejs and react js?

Please the link for details description:
https://stackoverflow.com/questions/71468023/how-to-add-watchlist-wishlist-item-to-mongodb-using-nodejs-and-react-js
Thanks a million for the help

Mantas Matūzas

@mantoshelis

Hello, does anyone know methods/approaches on how to make the ability for customers to extend system functionality by its custom code? It's an ERP product with its default logic but we want to make the ability for customers to extend logic using their own code.

maoshuo chen

@maoshuochen

Hello, I have a problem when using the "codesandbox" to do the back end dev project. When I submit the url, I got the error from my server. Error: connect ECONNREFUSED 192.168.203.38:443
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1159:16)
Emitted 'error' event on ClientRequest instance at:
at TLSSocket.socketErrorListener (_http_client.js:475:9)
at TLSSocket.emit (events.js:400:28)
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:82:21) {
errno: -111,
code: 'ECONNREFUSED',
syscall: 'connect',
address: '192.168.203.38',
port: 443
}

Vicky Gupta

@viki4545

CastError: Cast to ObjectId failed for value "create" (type string) at path "_id" for model "Blog"
at model.Query.exec (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\query.js:4641:21)
at model.Query.Query.then (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\query.js:4740:15)
at C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\app.js:134:10
at Layer.handle [as handle_request] (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\layer.js:95:5)
at next (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\route.js:137:13)
at Route.dispatch (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\route.js:112:3)
at Layer.handle [as handle_request] (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\layer.js:95:5)
at C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\index.js:281:22
at param (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\index.js:360:14)
at param (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\express\lib\router\index.js:371:14) {
messageFormat: undefined,
stringValue: '"create"',
kind: 'ObjectId',
value: 'create',
path: '_id',
reason: BSONTypeError: Argument passed in must be a string of 12 bytes or a string of 24 hex characters
at new BSONTypeError (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\bson\lib\error.js:41:28)
at new ObjectId (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\bson\lib\objectid.js:65:23)
at castObjectId (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\cast\objectid.js:24:12)
at ObjectId.cast (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\schema\objectid.js:247:12)
at ObjectId.SchemaType.applySetters (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\schematype.js:1180:12)
at ObjectId.SchemaType._castForQuery (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\schematype.js:1614:15)
at ObjectId.SchemaType.castForQuery (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\schematype.js:1604:15)
at ObjectId.SchemaType.castForQueryWrapper (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\schematype.js:1581:20)
at cast (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\cast.js:344:32)
at model.Query.Query.cast (C:\Users\admin\Downloads\WebDevelopment\Node-Crash-Course\node_modules\mongoose\lib\query.js:5076:12),
valueType: 'string'
}

please anyone explain this error

Thakur Vinay Rawat

@vineyrawat

Hello Guys!
I have got a question

How can I communicate between microservices?

Neil Haria

@neilharia7

Depends on the use case, if aysnc then via pub sub mechanism, if sync, then via RPC

botshubh

@botshubh

can anyone help me with my college project?

Amaad Mirza

@amaadmirza

yes

Matthew

@ChaplainsBud

May I have help with using MVVM with Java?

ryanshah23

@ryanshah23

Hello, does anyone know how i can get back up of my e-commerece website which related to medication of mens health https://kamagrastoreuk.com/, i really have bad experience of data loss for my previous website.

Gunvant Sarpate

@gunvantsr

Hi there!

I've built a simple boilerplate generator for Node.js, and Express projects.
Here is the GitHub link: https://github.com/gunvantsr/expressgen

Would love to hear any suggestions or feedback :)

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