Resetting of postdata, still getting same data after second setup_postdata

  • Resolved ajulvestad

    (@ajulvestad)


    13 years, 1 month ago

    Hi, I’m in the process of transforming static HTML to a WordPress template. I’ve got most things working, but need some help on a subject that’s threatening my sanity ;-).

    Due to the way the design has been implemented, I can’t use a foreach-loop to present the stories. I need to fetch them one at a time. At the start of index.php I threfore have

    $postar = get_posts(array('numberposts' => 4));

    Then I’ve used
    setup_postdata($postar[0]); followed by using the_title() etc and then repeating the process somewhere else in the same file with setup_postdata($postar[1]); etc.

    The problem I’ve got is that everything is perfect after the first setup_postdata, but after the second or third I still get the data from $postar[0], with the exception of the_content() which returns the content from $postar[1]!

    To debug, Ive’ added a part:

    echo "*Direkte frå objektet:\n"
echo $postar[0]->post_title."\n";
echo $postar[1]->post_title."\n";
echo "*Frå wp-funksjonar:\n"
setup_postdata($postar[0]);
the_title();
setup_postdata($postar[1]);
the_title(); ?>
echo "*Frå print_r:\n"
print_r($postar[0]);
print_r($postar[1]);

    This returns:

    *Direkte frå objektet:
Testartikkel1
Hello World!
*Frå wp-funksjonar:
Testartikkel1
Testartikkel1
*Frå print_r:
stdClass Object
(
    [ID] => 3
    [post_author] => 1
    [post_date] => 2011-02-27 17:59:46
    [post_date_gmt] => 2011-02-27 17:59:46
    [post_content] => freopfjrejfre ofjrep fjrep fje rf
    [post_title] => Testartikkel1
    [post_excerpt] =>
    [post_status] => publish
    [comment_status] => open
    [ping_status] => open
    [post_password] =>
    [post_name] => testartikkel1
    [to_ping] =>
    [pinged] =>
    [post_modified] => 2011-02-27 18:00:21
    [post_modified_gmt] => 2011-02-27 18:00:21
    [post_content_filtered] =>
    [post_parent] => 0
    [menu_order] => 0
    [post_type] => post
    [post_mime_type] =>
    [comment_count] => 0
    [filter] => raw
)
stdClass Object
(
    [ID] => 1
    [post_author] => 1
    [post_date] => 2011-02-27 17:43:40
    [post_date_gmt] => 2011-02-27 17:43:40
    [post_content] => Dette er ein testartikkel
    [post_title] => Hello, World!
    [post_excerpt] =>
    [post_status] => publish
    [comment_status] => open
    [ping_status] => open
    [post_password] =>
    [post_name] => helloworld
    [to_ping] =>
    [pinged] =>
    [post_modified] => 2011-02-27 17:43:40
    [post_modified_gmt] => 2011-02-27 17:43:40
    [post_content_filtered] =>
    [post_parent] => 0
    [menu_order] => 0
    [post_type] => post
    [post_mime_type] =>
    [comment_count] => 0
    [filter] => raw
)

    I’ve attempted using wp_reset_postdata(), but that doesn’t help me in any way, still the same result.

Viewing 9 replies - 1 through 9 (of 9 total)
  • Thread Starter ajulvestad

    (@ajulvestad)

    13 years, 1 month ago

    This is still unresolved.. any hints here would be great 🙂

    Chip Bennett

    (@chipbennett)

    13 years, 1 month ago

    I’m not sure I understand the issue. The two outputs appear to be different (the first one is PostID 3, and the second one is PostID 1).

    Thread Starter ajulvestad

    (@ajulvestad)

    13 years, 1 month ago

    Yes, in the array they are different, but that’s when calling print_r. When using setup_postdata and then the_content etc (the proper way of doing things), I only get content from $postar[0], even though I’ve specified setup_postdata($postar[1]).

    Chip Bennett

    (@chipbennett)

    13 years, 1 month ago

    Oh, I see now.

    What happens if you try to call post content as an object? e.g.:

    $postar = get_posts(array('numberposts' => 4));
$postar[0]->post_content;
$postar[1]->post_content;

    Thread Starter ajulvestad

    (@ajulvestad)

    13 years, 1 month ago

    When I try to call content as an object, everything looks fine, with proper output from the different objects:

    echo $postar[0]->post_title."\n";
echo $postar[1]->post_title."\n";

    returns:

    Testartikkel1
Hello World!

    But

    setup_postdata($postar[0]);
the_title();
setup_postdata($postar[1]);
the_title();

    returns:

    Testartikkel1
Testartikkel1

    Thread Starter ajulvestad

    (@ajulvestad)

    13 years, 1 month ago

    I’ve shortened index.php considerably to only include debuginformation. The code: pastebin.com

    The site in use: wordpress site with the index.php in question

    Chip Bennett

    (@chipbennett)

    13 years, 1 month ago

    If you can use the object parameters (i.e. wp-posts table columns) successfully, why worry about outputting via setup_postdata()?

    You’ve already called the object, so at that point I don’t think there are any performance gains or hits with using $post->post_content vs. the_content().

    Thread Starter ajulvestad

    (@ajulvestad)

    13 years, 1 month ago

    By not using static references I can more reasily fetch categories, name of poster, formatted dates etc – information not available in the array/object.

    Thread Starter ajulvestad

    (@ajulvestad)

    13 years, 1 month ago

    Solved by adding a global $post and referencing to $post, not $postar.

Viewing 9 replies - 1 through 9 (of 9 total)
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