janw.oostendorp

Hello Londonnet,

The plugin does not do this out of the box but I did leave an opening for it. I don’t support it because how should I handle multi categories, sub categories and all other variations.
The way you suggest can work but someone else might need something completely else.

To make this you do need to know a bit of code. An example to get you started.

function dfi_category ( $dfi_id, $post_id ) {
  // all which have 'animals' as a category
  if ( has_category( 'animals', $post_id ) ) {

    //sub category
    if ( has_category( 'cats', $post_id ) ) {
      return 7; // cats img id
    } else if has_category( 'dogs', $post_id ) {
      return 8; // dogs img id
    }

    return 6; // default animals img id
  }
  return $dfi_id; // the original featured image id
}
add_filter( 'dfi_thumbnail_id', 'dfi_category', 10, 2 );

Hello chronicbubble,

I’m sure this can be done, but to achieve this there has to be changed a lot. Too much to reasonably support.
I can give you some pointers:

The setting is added to an existing settings page (media). You will have to create your own settings page under the posttype > add_submenu_page

After which you have to add this to that page.

Also have a look at the API. It’s not the most easy thing to do the first time.

A tutorial to work with it: http://code.tutsplus.com/series/the-complete-guide-to-the-wordpress-settings-api–cms-624

Hope this helps you on your way.

Hello Naomi,

I’m afraid I can’t help that much since it should be fixed in the theme, not in this plugin. It can be done if you tweak the template.

You could just hide the images on that page with css.
Or exclude it a filter if you know what kind of page it is. Like described on the faq page.

Hope this helps you on your way. Sorry I can’t help more

NP.

Create wp-content/plugin/dfi-exceptions.php

<?php
/**
 * Plugin Name: Default Featured Images Exceptions.
 * Plugin URI: https://wordpress.org/support/topic/exclude-certain-pages-and-posts-1
 * Version: 0.9
 * License: GPL2
 */

function dfi_exceptions_skip_page ( $dfi_id, $post_id ) {
  $exclude_ids = array(
    2,  // 1 id per line and don't forget the comma
    8,
  );
  if ( in_array($post_id, $exclude_ids) ) {
    return 0; // don't display DFI
  }
  return $dfi_id; // the original featured image id
}
add_filter( 'dfi_thumbnail_id', 'dfi_exceptions_skip_page', 10 , 2 );

And enable the plugin in the wp-admin.
I’s can be found in the edit page in the url.
Hope this helps.
Let me know how it goes.

Hi Ratethetrainers,

On the faq page I have some examples of excluding posts:

function dfi_skip_page ( $dfi_id, $post_id ) {
  if ( $post_id == 23 ) {
    return 0; // invalid id
  }
  return $dfi_id; // the original featured image id
}
add_filter( 'dfi_thumbnail_id', 'dfi_skip_page', 10 , 2 );

Do you know how to implement this or do you need more guidance?

Hi,

yes you can:

function dfi_randomimage ( $dfi_id, $post_id ) {
  // how you fill this array with image id's is up to you.
  $allowed_image_ids = array( 1, 23, 45 );

  $random_image_id = $allowed_image_ids[array_rand($allowed_image_ids)];
  return $random_image_id;
}
add_filter( 'dfi_thumbnail_id', 'dfi_randomimage', 10 , 2 );

If you need any more help let me know.

Good to hear.
Do keep in mind that I don’t know where else it can effect your pages.
Maybe it’s good but I can’t see/know.

Hi John,

I looked at the themes and the fault is somewhere in get_the_image() function. It’s a big function, I don’t know where is is going wrong. I suggest overruling the content-blog.php file and swithing the get_the_image() with one of the default WordPress functions which should work wit my plugin.