Creating custom post type posts and associating them with a post from another custom post type

Taken literally your question is about post to post relationships. Bad news — WordPress core doesn’t do post to post relationships. However there are some solutions ranging from frameworks like Posts 2 Posts to plugins like Post Connector.

Stepping a bit back though, structure you are describing strongly implies grouping of posts. The mechanism for such in WP is custom taxonomies (core taxonomies being categories and tags for example).

If you create Place and Activity as taxonomies then you get pretty much everything out of the box — from UI in post editor to archives and querying. The only limitation would be just how much info you want to cram into individual place/activity items (terms of taxonomy). They aren’t to be intended as content heavy as posts and many less tools focus on enabling complex data for them.

Related Posts:

  1. How to get all taxonomies of a post type?
  2. Saving Taxonomy Terms
  3. Get Posts by Custom Post Type ,Taxonomy, and Term
  4. Custom Taxonomy as checkbox or dropdown
  5. Taxonomy: Why ‘with_front’ => false DOES NOT WORK?
  6. How do I append multiple taxonomies to the URL?
  7. Custom Taxonomy as Dropdown in admin
  8. Custom Taxonomy’s Label to change the text appearing in Appearance > Menu
  9. How to completely disable a taxonomy archive on the frontend?
  10. How to limit the number of terms (terms acts like categories)
  11. How can I list all the categories under a Custom Post Type (taxonomy)?
  12. Custom taxonomy not showing up when adding a new custom post type
  13. How do I list custom taxonomy terms without the links?
  14. How to list custom taxonomy categories?
  15. Custom Taxonomy Template Post List with Sort Order
  16. wp_insert_term doesn’t work with custom post type’s taxonomy
  17. How to list all categories and tags in a page?
  18. Retrieve single term slug
  19. Taxonomy archives based on Custom Post Type
  20. Create an archive page for custom taxonomies
  21. Get the ‘slug’ of a custom taxonomy
  22. Custom Metabox with Taxonomy Dropdown – Saving Issue
  23. How to show term-specific post list, without posts associated with child terms?
  24. How to get the parent’s taxonomy?
  25. Query multiple taxonomy in Custom Post Type
  26. Include custom post type in “all posts”
  27. How do I list terms of a custom taxonomy at i.e. domain.com/brands/
  28. wp_insert_post custom taxonomy
  29. Custom Post Type: How to display all of same taxonomy?
  30. Taxonomy-{taxnonomy}.php is not working
  31. Display taxonomy term only if there’s a value
  32. Remove “-2” from a Toolset Types URL with the same post name
  33. Get list of terms of current taxonomy archive for another taxonomy
  34. Get all taxonomies for all post types
  35. Custom post type taxonomy template
  36. Is slug “type” reserved and can’t be used in taxonomy rewrite?
  37. Associate Taxonomies Across Post Types
  38. Use the_taxonomies() to create a simple list
  39. Listing taxonomies from custom post type
  40. Remove Taxonomy Slug when No Taxonomy is Assigned to Custom Post Type?
  41. Linking three taxonomies with ACF
  42. Taxonomy Templates
  43. Custom Post Type and Taxonomy combination
  44. Show Post Count of a Category
  45. Custom Taxonomy Creates Unwanted Integer Terms on Post Save
  46. Order WordPress Custom Taxonomy Pages & Pagination Not Working
  47. Relationship between two taxonomies and a custom post type [closed]
  48. Menu Multiple Taxonomies
  49. How to make a custom taxonomy selectable in post publish area?
  50. Problem with custom post types, taxonomy and permalinks
  51. Single taxonomy for different custom post types
  52. How to get all posts assigned to a taxonomy term only?
  53. Custom Taxonomy page redirecting to 404 page
  54. Changing an item in drop down after 5 latest posts per taxonomy
  55. I want to create an archive and single page for a custom taxonomy for a custom post type
  56. Taxonomy’s title
  57. Display all posts from single taxonomy term
  58. Connect 8 Taxonomies to One (Main) taxonomy. How to?
  59. Filter Term By Parent Term – Custom Post Type
  60. Filter By Term Not Working – Custom Post Type
  61. How to show post which has the specific taxonomy terms?
  62. Displaying WordPress posts from post and custom post type in custom taxonomy
  63. Custom post type taxonomy template and URL confusion
  64. Best approach to allow front-end display of posts’ reviewers?
  65. WordPress add taxonomies/terms list as a menu in archive page
  66. Custom Taxonomy is disabled on Edit page
  67. Override “Parent” input for custom taxonomy
  68. Custom Post Type and Taxonomies, creating the corresponding template file and loop the data
  69. How to create TEMPLATES for TAXONOMIES? What I have to change in this code?
  70. List all posts from custom post type by taxonomy
  71. Displaying taxonomy icon outside archive page
  72. Custom post type post taxonomies
  73. Connecting multiple post types? Or linking “News” posts with “Game” posts how?
  74. Sort by Custom Post Type (Multiple Loop)
  75. Archive templates based on taxonomies
  76. Show taxonomies from specific CPT
  77. insert a taxonomy for a custom post type
  78. How to display elements of different post types?
  79. How to display only taxonomies of custom post type in a page?
  80. Check if taxonomy is attached to at least one post in a post-type
  81. Looping taxonomy in taxonomy?
  82. Custom posts and custom taxonomies for many products and categories?
  83. get_the_term_list() wanting to loop through the returned values
  84. List custom taxonomy terms
  85. How do i get the taxonomy term name on the CPT archive page?
  86. See the process of creating a taxonomy and tell me where I made a mistake
  87. Display associated taxonomy child name on single CPT page
  88. Issue On Listing Woocommerce Parent Tag List
  89. Get all active posts that are tied to a custom taxonomy for a custom post type
  90. How to add to taxonomies to a post type
  91. Filtering custom post types using category taxonomy
  92. Taxonomy listing issue – does not display how I would like
  93. Show custom category archive as front page and remove taxonomy slug from urls
  94. Is it possible for post and custom post type to share a category base slug?
  95. Taxonomy Archive URL + Template
  96. Taxonomy term archive claims there are no posts, but there are. How to resolve?
  97. Category display using conditions
  98. How to list custom taxonomy terms without the hyperlinks?
  99. How to Filter the Custom term loop based on dropdown
  100. Custom Taxonomy archive with url parameters
Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)