How to update a photo using PHP?

I have been trying to follow the API Documentation to update a photo using PHP.

I went through the sample code blocks provide, but I really don't understand. May be its missing the detailed explanation. Its doing like

- creating $parts

- creating $newphoto

- changing $parts

What I am doing is like:

When the user clicks on a photo, I get the "id" of the clicked photo. This gives information, that this particular photo needs to be updated. Then I redirect the user to the page for uploading a new photo and set the obtained "id" for photo in hidden field.

Then I don't know what to do exactly to update the photo.

Is my approach wrong? Can anybody suggest me a solution with some sample code.

Thanks.

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Replies to This Discussion

Permalink Reply by Devin on April 28, 2011 at 10:44am

You are on the right track! You just need to add form fields for each of the photo's fields you want members to be able to update. Here is a sketch of the flow of information:

Member clicks a photo
The photo's ID is passed into an HTML form as a hidden field
Member inputs fills in the fields they want to update such as title and description
Member clicks the submit button
Web browser sends the data to your server
Server receives the request and translates it into a Ning API request
Member visits the network and see their changes

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Permalink Reply by liyamahendra4 on April 29, 2011 at 12:57pm

Hello Devin,

Thank you for your reply. Glad to know that my approach was correct.

Following is the code which I used to udpate the Photo of the user:

$ningApi = new NingApi($subdomain, $consumer_key, $consumer_secret);
$email = $_POST["email"];
$password = $_POST["password"];

$loginMessage = "";
try
{
$result = $ningApi->login($email, $password);
$loginMessage = "success";
}
catch(Exception $e)
{
$loginMessage = $e->getMessage();
}

$parts = array(
"title" => $_POST["title"],
"description" => $_POST["description"],
"id" => $_POST["photoIdToUpdate"]
);

$result = NingApi::instance()->photo->updateById($parts);
print_r($result);

print "Ning Update complete";

It is giving me the following error:

Fatal error: Uncaught Invalid or missing content id. (400) 5-7 thrown in C:\wamp\www\ning\NingException.php on line 56

Can you please tell me why this is not working?

Thanks,
Mahendra.

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Permalink Reply by liyamahendra4 on May 7, 2011 at 7:09am

Hello Devin,

You seem to be the only person answer the questions here. Can you please spare some time to answer my question.

Thanks,

Mahendra.

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Permalink Reply by Devin on May 9, 2011 at 9:24am

The PHP code you posted looks good, I'd check your HTML form and make sure that you are passing in the photoIdToUpdate properly. I'd add in a debug print_r($parts) before you make the request to Ning to verify your PHP code is receiving what you are expecting.

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Permalink Reply by liyamahendra4 on May 9, 2011 at 9:32am

Hey Devin,

Thank you for taking time to reply back. Here is my HTML Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Upload Photo</title>
</head>

<body>
    <div id="logoDiv" style='padding-top: 20px; padding-bottom: 20px;'>
            <img src='logodrk.png' alt='logo' />
</div>
<form action="upload.php" method="post" enctype="multipart/form-data">
        <p style='padding: 20px'>

            <span> Title : </span>
            <br />
            <input type="text" name="title" id="title" /> <br />
            <span> Description : </span>
            <br />
            <textarea name="description" id="description" cols="50" rows="5"> </textarea>
            <br />

            <input type="hidden" id="photoIdToUpdate" name="photoIdToUpdate" value="<?php if(isset($_REQUEST["photoId"])) echo $_REQUEST["photoId"]; ?>" />
            <input type="hidden" id="email" name="email" value="<?php if(isset($_REQUEST["email"])) echo $_REQUEST["email"]; ?>" />
            <input type="hidden" id="password" name="password" value="<?php if(isset($_REQUEST["password"])) echo $_REQUEST["password"]; ?>" />

        <?php
            if(!isset($_REQUEST["photoId"]))
            {
        ?>
               <span> Picture to upload: </span>
                <br />

            <input type="file" name="file" id="file" />
            <br />
                <input type='submit' value='Upload' style='width: 100px; text-align: center; padding: 0px;' />
        <?php

            }
            else
            {
        ?>
            <br />
            <input type='submit' value='Update' style='width: 100px; text-align: center; padding: 0px;' />
        <?php

            }
        ?>



        </p>
        </form>
</body>
</html>

Please let me know why is it not updating the photo?

Thanks in advance.

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Permalink Reply by Belal on May 8, 2012 at 8:27am

Dear Mahendra,

I'm trying to create a Photo Competition app/section for my network.

My question to you is where are you posting the above photo code ? Is it on your own server or on new Ning pages

on your Ning Network ?

Thanks

- Belal

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Permalink Reply by Phillip Pearson on May 9, 2012 at 5:29pm

Belal - the code is posted on Mahendra's own server. It requires PHP, so won't work if you just post it on a Ning page.

Mahendra - as Devin suggested, you should check that you are passing in the photoIdToUpdate parameter correctly. Looking at this part:

It seems that the photo ID will only be passed in if $_REQUEST["photoId"] is set. Can you double-check that in the PHP code, by adding in the code in bold?

$parts = array(
"title" => $_POST["title"],
"description" => $_POST["description"],
"id" => $_POST["photoIdToUpdate"]
);

echo '$parts: '; print_r($parts); echo '<hr>';

$result = NingApi::instance()->photo->updateById($parts);
print_r($result);

Try editing the photo, and if it doesn't work, paste the info this prints out into this discussion and let me know the URL of the network you're working against, and I'll check things out.