我正在尝试创建一个具有简单表单、post\\u meta和user meta的多标准后评价函数。
目标
当用户提交评分时，应该发生两件事：
1.评级存储在名为“wpd\\U评级”的post\\U meta中，如下所示：
array(user id => array(
field1 => 5
field2 => 3
field3 => 4
),
another user id => array(
field1 => 2
field2 => 5
field3 => 4
)
)
2。评级存储在名为“plgn\\U rating”的user\\u meta中，如下所示：
array(post id => array(
field1 => 5
field2 => 3
field3 => 4
),
another rated post id => array(
field1 => 2
field2 => 5
field3 => 4
)
)
代码（明显不起作用）
In single.php:
标题部分：
<?php // top of page
if ( isset( $_POST[\'drw_inventory\'] ) && wp_verify_nonce($_POST[\'drw_inventory\'],\'update_drw_postmeta\') )
{ //if nonce check succeeds.
global $post;
$postid = $post->ID;
$data = $_POST[\'wpd_function_rating\'];
$data2 = $_POST[\'wpd_feature_rating\'];
$data3 = $_POST[\'wpd_support_rating\'];
$currentusr = get_current_user_id();
//*******************The post meta field Part****************************
//Get the Existing user ratings of this post
$ls_up_votes = get_post_meta($postid, \'wpd_rating\');
//if the current user already rated, unset the rating
foreach ( $ls_up_votes as $key => $value )
{
if ( $key == $currentusr )
{
unset( $ls_up_votes[$key] );
}
}
//Add post meta \'wpd_rating\' with this structure:
//array(userid => array(\'wpd_function_rating\' => \'3\',\'wpd_feature_rating\' => \'5\',\'wpd_support_rating\' => \'4\',))
$up_vote = array($currentusr => array(\'wpd_function_rating\' => $data,\'wpd_feature_rating\' => $data2,\'wpd_support_rating\' => $data3));
//appending new user ratings after one another
$ls_up_voted = array_merge($ls_up_votes, $up_vote);
update_post_meta($postid,\'wpd_rating\',$ls_up_voted);
//*******************The user field Part****************************
//Get the Current user ratings of this post
$user_rated_posts = get_user_meta($currentusr, \'plgn_rating\',true);
foreach ( $user_rated_posts as $key => $value )
{
if ( $key == $postid )
{
unset( $user_rated_posts[$key] );
}
}
//add a user field \'plgn_rating\' with this structure
//(postid => array(\'wpd_function_rating\' => \'3\',\'wpd_feature_rating\' => \'5\',\'wpd_support_rating\' => \'4\',))
$usr_vote = array($postid => array(\'wpd_function_rating\' => $data,\'wpd_feature_rating\' => $data2,\'wpd_support_rating\' => $data3));
//appending new user ratings after one another
$ls_up_voted = array_merge($user_rated_posts, $usr_vote);
update_user_meta($currentusr,\'plgn_rating\',$ls_up_voted);
}
?>
表格：
<form method="post" action="">
<?php wp_nonce_field(\'update_drw_postmeta\',\'drw_inventory\'); ?>
<label>This is label</label>
<input type=\'text\' name=\'wpd_function_rating\' value=\'\' />
<input type=\'text\' name=\'wpd_feature_rating\' value=\'\' />
<input type=\'text\' name=\'wpd_support_rating\' value=\'\' />
<input type=\'submit\' value=\'save\' />
</form>
Issues with the current code
<数组未按我的结构保存。我很确定我使用的array\\u merge是错误的。或者调用get\\u post\\u meta错误。
代码没有检查现有的用户评级并用新的评级替换旧的评级。
正如s\\u ha\\u dum所建议的那样，更新并没有用：
foreach ( $ls_up_votes as $key => $value ){
var_dump($key,$value);
if ( $key == $currentusr ){
unset( $ls_up_votes[$key] );
}
}
当我添加用户输入2次时，unset命令应该删除同一用户添加的前一个数组并添加新数组，而不是全部添加2次。以下是我得到的：
Array ( [0] => Array ( [0] => [1] => Array ( [wpd_function_rating] => 33 [wpd_feature_rating] => 23 [wpd_support_rating] => 66 ) ) [1] => Array ( [wpd_function_rating] => 44 [wpd_feature_rating] => 11 [wpd_support_rating] => 32 ) )
