Change categories count to include media attachments

You’ve probably solved this, but for anyone else that needs this:

$wp_taxonomies['category']->update_count_callback = '_update_generic_term_count';

This is significant in the case of attachments. Because an attachment
is a type of post, the default _update_post_term_count() will be used.
However, this may be undesirable, because this will only count
attachments that are actually attached to another post (like when you
insert an image into a post). This means that attachments that you
simply upload to WordPress using the Media Library, but do not
actually attach to another post will not be counted. If your intention
behind associating a taxonomy with attachments was to leverage the
Media Library as a sort of Document Management solution, you are
probably more interested in the counts of unattached Media items, than
in those attached to posts. In this case, you should force the use of
_update_generic_term_count() by setting ‘_update_generic_term_count’ as the value for update_count_callback.

from WordPress Codex on register_taxonomy

Related Posts:

  1. How to get the number of child categories a specific parent category has?
  2. How get all media from a posts category by db?
  3. Is There a Difference Between Taxonomies and Categories?
  4. Can I add a Category Metabox to attachment?
  5. Check if a post is in any child category of a parent category
  6. How to export and import taxonomies (category, tag and/or custom taxonomy) and their terms
  7. get_categories for custom post type with a specific custom taxonomy attached
  8. Could not insert term into the database
  9. How can I add the featured image functionality to a custom taxonomy?
  10. Share one taxonomy across multiple blogs in 3.0 [duplicate]
  11. Weird behaviour when adding terms/term_taxonomies programmatically
  12. wp_update_nav_menu_item() to insert categories
  13. Admin Panel – Disable Moving Selected Terms To Top of Metabox
  14. How to make custom taxonomy check boxes like ‘Categories’
  15. How to create non-unique sub-category slugs?
  16. How to get next previous category in same taxonomy?
  17. Display only deepest category on a single post?
  18. How to add HTML5 ‘required’ attribute to wp_dropdown_categories() without JavaScripts?
  19. Wrap a chosen category name with div
  20. What’s the difference between “parent” and “category_parent” in a WP_Term object?
  21. Update taxonomy value of post type in query
  22. How to query posts from specific authors and categories using WP_query?
  23. Add custom taxonomy under the category title
  24. Display name of the last child category
  25. List Terms in Category
  26. How to get category URL with the slug?
  27. How to view WordPress’ default category IDs?
  28. Random taxonomy category list
  29. Set the default category of an attachment
  30. Warning: sizeof (): Parameter must be an array or an object that implements Countable, On products pages
  31. Display Slug instead of Name
  32. ACF: Display category name using taxonomy field
  33. Show Available Taxonomy List with Current Category
  34. Exclude a category from the_category in the single post page
  35. Taxonomy name repeating when showing 2 posts from each category
  36. Why does the argument list_only do on Walker_Category_Checklist::start_el?
  37. New Categories Not Shown In the Post Edit Page
  38. Shortcodes not working in category or tag description
  39. Filtering multiple categories via the URL
  40. Pagination is not working properly in Product Category/Tag pages
  41. Display specific categories by ID
  42. Display Posts Loop for each parent and for each Child
  43. How to limit number of attachments
  44. Flat category URLs but retaining hierarchy?
  45. Get Number of total Parent Categories for Custom Taxonomy
  46. Drop posts from categories in MySql
  47. Customize category page for different custom taxonomies
  48. Get posts under a category with SQL
  49. Custom taxonomy template for categories
  50. Wacky taxonomy in wordpress
  51. Display custom taxonomy attached to the post on post single page
  52. Question on using custom structures for categories
  53. Admin: Navigation Menus do not show empty categories/taxonomies in the list’s search tab
  54. Display sibling categories on category page
  55. How to modify the output of wp_terms_checklist when used within the built-in category metabox on edit posts?
  56. If x comments in a post move post to category y
  57. Count tags for a specific category
  58. Echo text using is_tag
  59. List just subcategory and products of active category page in Woocommerce
  60. WP 4.7 in_category change?
  61. Get posts of a custom post type from category from taxonomy?
  62. Illegal string offset ‘taxonomy’ in
  63. How to schedule categories?
  64. How to exclude posts from category posts count
  65. Let user select their own category
  66. Setting selected term_id with wp_dropdown_categories?
  67. creating categories programmatically
  68. sidebar troubles, taxonomy trouble
  69. Category post count is not correct
  70. WordPress Default Category and Custom Taxonomy Selected Attribute not Working After Searched in wp_dropdown_categories Array
  71. How can i change sort category view starting from child then parent, not alphabetically
  72. List all categories and count number of posts within based on custom date
  73. Filtering posts in category by tag URL
  74. Bulk assign posts to a category using SQL (MySQL)
  75. Image Upload Custom Form Field for Category and Custom Taxonomy
  76. outputting taxonomy hierarchy
  77. Confused about category.php template – not working
  78. Filter custom taxonomy posts via AJAX
  79. Why use hierarchical taxonomies instead of many custom taxonomies?
  80. Update Cateogory Taxonomy Count for Attachment Post Type
  81. How to Manage and link certain custom taxonomy?
  82. Display Taxonomies in loop with template args
  83. Grouping parent categories into sections
  84. get_adjacent_post_link excluded_terms ignored
  85. Match two taxonomies to display a specific content
  86. Categories in media library
  87. Category base 404 – fix
  88. Category count but only if category has at least one post
  89. Display only the latest post
  90. Return selected categories only in custom page meta box?
  91. get IDs from links categories
  92. Multiple Parent Category URLs
  93. Chained drop-down menu for custom taxonomy using chained.js
  94. Display only one level subcategory in wordpress
  95. Converting Categories (with ACF fields) to custom taxonomies
  96. Woocommerce custom taxonomy order
  97. Hook action when create new category [duplicate]
  98. Taxonomy term RestApi data 10 rows limitions
  99. Images as Categories
  100. Quick Edit on taxonomy names results in error