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1. DavidPotter
   Member
   Posted 2 years ago #

   I'm writing a plugin to add a shortcut for displaying an image uploaded to your WordPress gallery on any post or page using a shortcode. I'm using the following statement to get attachments:

   $attachments = get_posts('post_type=attachment');

   However, this doesn't work reliably. It doesn't always include the specified attachment, even if the attachment exists in the wp_posts table. What would cause it to exclude some attachments?

   Of course, I'd prefer a query that zeroed in on the specific attachment. Is there a WordPress function I can call to get the attachment I want based on ID or post_name? That would clearly be more performant than what I'm doing. I could go straight to SQL, but I'd prefer not to.

   Thanks,
   David

2. MichaelH
   Volunteer
   Posted 2 years ago #

   Look at Function_Reference/get_children.

3. DavidPotter
   Member
   Posted 2 years ago #

   The examples on that page didn't work. Here is what ended up working for me:

   $parameters = array(
       'post_type' => 'attachment',
       'post_parent' => null,
       'post_mime_type' => 'image');
   $attachments = get_children($parameters);

   Specifying null for post_parent was the key.

   Thanks for the help.
   David

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