Filter posts by meta query?

It is a little more convoluted, but main queries for admin can be modified roughly in a same way as front end. You would need to:

  1. hook into pre_get_posts
  2. check for is_admin()
  3. check for is_main_query()
  4. check for specific page you want to adjust
  5. apply your adjustments to the query if all matches

Related Posts:

  1. Meta query terribly slow
  2. meta_query sorting by 2 keys
  3. Query between two meta keys
  4. Archives for custom post type based on a “date” meta value
  5. How to check a single number value against an array of meta_key values?
  6. get_users meta_query
  7. Meta query with multiple logic (AND / OR)
  8. Best practice – Meta Query vs. post_clauses for “left join” ordering
  9. meta_query with multiple values
  10. Different page parameters inside query
  11. LIKE %…% Meta Query
  12. Multiple Values stored as array in Meta Query
  13. Documentation for post meta
  14. Advanced orderby with multiple meta_query
  15. Using get_terms() with meta_query parameters
  16. WP_User_Query with meta_query array relation ‘OR’
  17. meta_query problem
  18. Very slow query with meta_query on large database
  19. meta_query results not the same with and without spaces
  20. meta_query all posts between to ages
  21. How to make a WP REST API query with meta_query in WP4.7?
  22. Nested Queries using meta_query
  23. Display no post when metavalue is 0
  24. Wildcard with LIKE operator in Meta query
  25. Meta Query Compare with Date
  26. Query posts only if meta_value is not empty
  27. Does meta_query working with value paramater higher then 999?
  28. meta_query keys and sticky posts
  29. WP_Query ordered by meta_value_num doesn’t fetch posts without this meta field
  30. Query Multiple values for same key
  31. Custom post type archive with rand and meta_value
  32. Comparing a field with several values at once with meta_query
  33. Meta query with a sub query group possible?
  34. meta_query not working on live site
  35. How to query post only with different excerpt?
  36. Query custom field with date
  37. Meta query with regular expression does not work
  38. Searching in title or meta, with a tax query too!
  39. WP_Query with meta_query no results
  40. Documentation for post meta
  41. Wp Query custom search by meta query
  42. Pre Get Posts / Multiple Meta Keys / Orderby Single Key
  43. Meta query – How to display a null meta key
  44. pre_get_posts and set
  45. WordPress Screwing Up ‘orderby’ => ‘meta_value_num’ in ‘pre_get_posts’
  46. How to query wp_postmeta table for any specific meta_value?
  47. User meta query results in PHP notice: only variables should be passed by reference
  48. meta_query with multiple values optimization
  49. Get a single post ID based on an exact match of 1 or more meta values
  50. wordpress Meta_query between numbers range (not working)
  51. meta_query with multiple key
  52. Order by meta value
  53. meta query based on month regardless of year
  54. Extend meta query arguments
  55. get_posts( $args ) return empty data
  56. meta_query in WP_User_Query not working – returns every user, not just users where key & value matches
  57. meta query or with meta value
  58. how to get post meta where value is an array of key value pairs
  59. meta_query array in ‘values’ returns an error
  60. how to search all user meta data that have value like “vivek”
  61. WP JSON API meta_query not working
  62. Ordering custom posts by meta field date
  63. Unable to use meta_query between currency values when value is over 1 million
  64. Filtering all posts AND sticky posts through meta_query
  65. How to cache the results of a query and display the cached results
  66. Fetch custom post related to a User
  67. How to Ordering by user meta
  68. How to send variable to wp meta_query value?
  69. Querying terms with calculations based on term meta data, sql vs. get_terms
  70. get_user can’t read variable
  71. meta_query check multiple date formats
  72. WordPress meta query not working
  73. Get meta_value from GDRating
  74. Reading Content in an Array as it relates to a meta_query
  75. Meta_Query with multi select values
  76. Trouble with calling an imploded variable in an array
  77. Meta Query returning empty array
  78. Query for user roles and their skills
  79. Get Posts from Custom Meta Query
  80. meta_query for user ID in array
  81. Display query post based on two orderby value in wordpress
  82. Search using specific meta fields only (excluding post title and content)
  83. How to fetch WP_User_Query with multiple role arguments [duplicate]
  84. How to get meta value based on latest post id with group by term name
  85. Meta query not returning results even though the sql contains the information
  86. Display Users from two roles in one list
  87. How to compare date in post meta value
  88. Multiple Queries with meta_query
  89. Which Meta Query Compare Method Should I use?
  90. Get foreach for meta_query value
  91. How to output meta_key in wp_postmeta?
  92. meta_query and strange orderby behaviour
  93. Sorting not working with get_posts
  94. Get_term with meta_query
  95. ACF meta_query field treated as “0” resulting in false negative search when testing ranges
  96. acf/save_post affecting WP_Query results
  97. Is it possible to customize meta query in this way?
  98. Ordering WP_Query results by second meta_key
  99. How making a new search box in admin post table working on a specific column
  100. wp_user_query with meta_value_num for leaderboard