[wp-hackers] Allow users to upload their own images - hook to use?

[J.D. Grimes]

Your insert_attachment() function returns the post ID of the attachment, so I'm not sure what the problem is... 

You don't need to attach the attachment to a post, so you should set $post_id to 0, and set the attachment's post_parent to 0 by passing in the $post_data parameter.

Example:

$post_id = 0;
$post_data = array( 'post_parent' => 0 );

$attach_id = media_handle_upload( $file_handler, $post_id, $post_data );

On Sep 12, 2013, at 12:25 PM, Gregory Lancaster <greglancaster71 at gmail.com> wrote:

> Im not sure how that would work.  Right now I am using a form I made, using
> wpdb to drop it into my custom table.  But the file is handles by the
> insert_attachment. It creates a post attachment, but I dont see a way to
> link up the post attachment ID to my custom table since it all happens on
> submit.
> 
> My code:
> 
> 
> ///FORM CODE///
> 
> 
> <form name="log_data" method="post" action="" enctype="multipart/form-data"
> onsubmit="setTimeout('location.reload()', 500);" />
>  <input type="hidden" name="user_id" value="<?php echo $current_user->ID
> ?>"/>
>  <input type="number" step="any" class="form-control" placeholder="Value"
> name="length" value="" />
>  <br />
>  <input type="number" step="any" class="form-control" placeholder="Value"
> name="ground" value="" />
>  <br />
>  <label for="date">Week Of:</label>
>  <input type="date" name="date" class="form-control" value="" />
>  <br />
> <input type="file" name="file" value="">
>  <br />
>  <input type="submit" name="submit" value="submit" class="btn
> btn-primary"/>
> </form>
> </div>
> 
> ///SUBMIT FORM CODE
> 
> $post_id = NULL;
> global $wpdb;
> if ($_FILES) {
>  foreach ($_FILES as $key => $value) {
>    $newupload = insert_attachment($file, $post_id);
>    // $newupload returns the attachment id of the file that
>    // was just uploaded. Do whatever you want with that now.
> 
> 
> 
> 
> if (isset($_POST['submit'])) {
> $wpdb->insert(wp_jo_plugin_options, array (
>    'user_id' => $_POST['user_id'],
>    'length'  => $_POST['length'],
>    'ground'  => $_POST['ground'],
>    'date'    => $_POST['date'],
> 'file' => $_FILES['file'],
> ));
>        }
>    }
> }
> 
> 
> ///FILE HANDLING FUNCTION
> 
> function insert_attachment($file_handler,$post_id,$setthumb='false') {
> 
>  // check to make sure its a successful upload
>  if ($_FILES[$file_handler]['error'] !== UPLOAD_ERR_OK) __return_false();
> 
>  require_once(ABSPATH . "wp-admin" . '/includes/image.php');
>  require_once(ABSPATH . "wp-admin" . '/includes/file.php');
>  require_once(ABSPATH . "wp-admin" . '/includes/media.php');
> 
>  $attach_id = media_handle_upload( $file_handler, $post_id );
> 
>  return $attach_id;
> }
> 
> 
> 
> 
> On Thu, Sep 12, 2013 at 6:35 AM, J.D. Grimes <jdg at codesymphony.co> wrote:
> 
>> 
>> On Sep 11, 2013, at 7:01 PM, BenderisGreat <greglancaster71 at gmail.com>
>> wrote:
>> 
>>> Wait this could be the answer to everything I need done.  You said I can
>>> attach it to a post, so each users uploads would be associated to their
>>> specific post.  If I am doing that is it also possible to associate the
>> data
>>> I am saving with my form to that post as well?  How would that be done?
>>> custom fields or something?
>> 
>> Yes, you can do that using post metadata AKA custom fields.
>> 
>> http://codex.wordpress.org/Function_Reference/add_post_meta
>> 
>>> Last followup question - how
>>> would I take the post->id from the image upload and drop it into my
>> table.
>>> (so each entry is properly matched up with the correct image)
>> 
>> 
>> The post ID is returned by wp_insert_attachment():
>> 
>> 
>> http://codex.wordpress.org/Function_Reference/wp_insert_attachment#Return_Values
>> 
>> So you would just need to use $wpdb->insert() with that post ID (if you
>> are going to use the custom table instead of post meta).
>> 
>> http://codex.wordpress.org/Class_Reference/wpdb#INSERT_rows
>> 
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