[wp-trac] [WordPress Trac] #34487: Add a new conditional tag for the "Posts Page"

[WordPress Trac]

#34487: Add a new conditional tag for the "Posts Page"
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 Reporter:  roytanck     |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  General      |    Version:  trunk
 Severity:  normal       |   Keywords:
  Focuses:               |
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 Currently, there's no conditional tag to determine whether the current
 page is the "Posts Page", set under Settings->Reading. The codex
 (https://codex.wordpress.org/Conditional_Tags#The_Blog_Page) describes a
 way to combine is_home() and is_front_page(), but I propose that we
 instead add a new conditional tag to deal with this.

 Naming the function is a little tricky. Unfortunately, the name
 "is_posts_page" is taken in query.php, so I created a patch that adds
 "is_blog_page". It returns true on the "posts page", and false everywhere
 else.

 I've run across this issue in real world projects a couple of times and
 though it would be a good addition to WordPress. The patch adds this to
 query.php because is_home() and is_front_page also live there.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34487>
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