How can i set media attachments to the author of the post or page for already existed posts with attachments

Related Posts:

1. Export media library with metadata and import into new blog
2. Attachment metadata has value of ‘1’
3. How to Fix HTTP Error When Uploading Images?
4. What is the different between an attachment in wp_posts and an attachment in wp_postmeta?
5. How can I bulk delete media and attachments using WP-CLI?
6. Get all posts (of any post type) an attachment is used in
7. Password protect some uploaded files, so only logged-in users can view them
8. Unattaching unlinked images
9. How to set author for post AND post attachments
10. How to get meta value in wp_attachment_metadata
11. Short of raw SQL, can I query for multiple attachment metadata that have a given array key?
12. Adding meta data to an attachment post
13. Regenerate missing _wp_attachment_metadata
14. Get url from file uploaded in Media Library
15. Generate an Email address from that of the Post Author
16. How to retrieve alt attribute for an attachment (uploaded image)?
17. How to fetch only media that was already attached to a post/page?
18. Audio file’s length (duration) is missing from Attachment Details in Media Library [closed]
19. Post edit – Media Library – Only get images from current post
20. Attach media to multiple posts
21. How do I modify the “Insert Media” lightbox in the admin to only show media items from a category?
22. Custom RSS Feeds & Post Meta Data
23. Get images attached to a specific page
24. How is the author’s name given a different color?
25. How does WordPress treats attachments metadata in post content?
26. Get the author meta adds now
27. Retrieving post meta array (attachment)
28. WordPress Attachments with old images
29. Conditional For get_the_author_meta
30. Randomizing Post Links Outside of Loop – No Author or Date
31. wpdb->get_var – count author posts, meta value
32. Why does “updated_post_meta” did not fire when uploading media other than image?
33. get all images from the wordpress media library with link to the post they are associated with
34. Check For get_post_meta on Author Archive Page
35. Media Library Mess After FTP … /uploads
36. Adding attachment custom field metadata to TinyMCE tag
37. Create a Gallery and update Post Parent of Attachment Images
38. How to get only current images of a post
39. controlling whether upload is attached to post or not
40. Media Attachment Custom Meta Fields not saving in Media Uploader when using jQuery UI Autocomplete
41. Media library orphans
42. Media library only show 2 items per page?
43. How to append $metadata[‘sizes’] to metadata when using ‘wp_generate_attachment_metadata?
44. How do I retrieve the slug of the current page?
45. How to Protect Uploads, if User is not Logged In?
46. Most efficient way to get posts with postmeta
47. Get posts by meta value
48. Add a menu item to WordPress 3.5 Media Manager
49. Explanation of update_post_(meta/term)_cache
50. How to extract data from a post meta serialized array?
51. Enhance Media Manager for Gallery
52. How to manage attachment relationships for specific posts in WP 3.5+
53. Programmatically adding images to media library
54. Add “upload media” button in meta box field
55. How to save an array with one metakey in postmeta?
56. Extend Media Library
57. WordPress is stripping escape backslashes from JSON strings in post_meta
58. WordPress 3.5: Setting custom “full URL path to files” in the Media Library?
59. Delete an attachment in the WP media modal window
60. How can I get the post ID from a WP_Query loop?
61. Check if Post Title exists, Insert post if doesn’t, Add Incremental # to Meta if does
62. Upload images to remote server
63. How to trigger a refresh in the media modal
64. How to use taxonomies on attachments with the new Media Library?
65. Custom collection in media manager?
66. Correctly delete posts with meta and attachments [duplicate]
67. How to show all available images in WP’s media library when using the Polylang plugin?
68. How to update_post_meta value as array
69. Delete Associated Media Upon Page Deletion
70. Adding meta tag without plugin
71. What’s the point of get_post_meta’s $single param?
72. Media library to list images only user uploaded
73. WordPress 3.5 Media Manager – add a button
74. Extend file format support for post thumbnails
75. Media Library Issues
76. Update post meta array – add new, single value
77. Cannot read properties of undefined (reading ‘useEntityProp’)
78. Detach WordPress Media Files In Bulk
79. Getting author’s nickname as meta value
80. How can i delete default title tag from wordpress?
81. Get Specific Files (Only Specific Extension Type All Files in Loop ) from Media
82. I read the postmeta and update it without changing it, then move on to the next record
83. Why isn’t my embed_video WYSIWYG field updating when using update_post_meta?
84. How to Upload a media item with alt text and description
85. How to update post view count?
86. How to prevent wordpress from redirecting media attachment page to media page?
87. Search posts by meta key in admin and front
88. Different upload file size limits based on file type
89. Custom fields with value not pushing with wp_remote_post to wp site
90. Hide username from blog post source code
91. Filtering Tabs in a Custom Post Type’s Edit Page
92. How can I get or the intermediate size of an image with wp_get_attachment_image_src without using post meta?
93. Calling metadata in a single.php file
94. Hide individual page title using checkbox in custom meta box?
95. Convert base64 string to WordPress attachment uploads multiple images instead of a single one
96. How can I get all attachments by a user on a WP multisite network?
97. Problem with “is_user_logged_in()” and woocommerce (Code for custom media upload for each author.)
98. Footnotes are not copied as a block
99. Get post meta in function hooked to transition_post_status
100. Add specific postmeta to search query