[英]Select approved comments and unapproved comments of current user MySQL PHP
我是mysql新手,从mysql数据库中选择数据时遇到问题:
$post_id = 3;
$current_user_id = 1;
$query = "SELECT `comments`.*, `users`.`username`, `users`.`image` FROM (`comments`)
LEFT JOIN `users` ON `comments`.`user_id` = `users`.`id`
WHERE `comments`.`post_id` = '$post_id'
AND `comments`.`status` = 1
AND `users`.`status` = 1
ORDER BY `comments`.`date` desc";
此选择从数据库中选择所有批准的注释,但是在此选择中,我需要$ current_user_id的所有未批准的注释,
结果必须如下所示:
[所有批准的帖子评论] + [$ current_user_id的所有未批准帖子评论]
不知道这是否真的有效,请尝试一下。 由于没有架构,因此无法测试查询。
SELECT `comments`.*, `users`.`username`, `users`.`image` FROM (`comments`)
LEFT JOIN `users` ON `comments`.`user_id` = `users`.`id`
WHERE `comments`.`post_id` = '$post_id'
AND (
(`comments`.`status` = 1 AND `users`.`status` = 1)
OR
( `comments`.`status` = 0 AND `users`.`id`= '$current_user_id' )
)
ORDER BY `comments`.`date` desc
我认为是选择所有已approved comments
或(未批准,但来自此用户的评论)。 您可能需要更改查询,直到获得真正需要的内容为止,我只是为您提供想法,而不是确切的查询。 希望这会帮助你。
SELECT `comments`.*, `users`.`username`, `users`.`image` FROM (`comments`)
LEFT JOIN `users` ON `comments`.`user_id` = `users`.`id`
WHERE `comments`.`post_id` = '$post_id'
AND `comments`.`status` = 1
AND `users`.`status` = 1
UNION ALL
SELECT `comments`.*, `users`.`username`, `users`.`image` FROM (`comments`)
LEFT JOIN `users` ON `comments`.`user_id` = `users`.`id`
WHERE `comments`.`post_id` = '$post_id'
AND `comments`.`status` = 0
AND `users`.`id` = '$current_user_id'
ORDER BY `comments`.`date` desc
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