Question

我正在使用wordpress，我正在尝试按日期自定义字段对某些帖子进行排序。那么我可以按日期对结果进行排序，但我只想显示截至今天的结果。我不想从具有未来日期的帖子中获得结果。

这是我正在使用的代码：

$querystr = "
            SELECT wposts.*
            FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta
            WHERE wposts.ID = wpostmeta.post_id
            AND wpostmeta.meta_key = 'date'
            AND wposts.post_status = 'publish'
            AND wposts.post_type = games'
            ORDER BY STR_TO_DATE(wpostmeta.meta_value, '%m/%d/%Y') DESC
            ";

        $pageposts = $wpdb->get_results($querystr, OBJECT);

Answer 1

将此添加到where子句：

AND STR_TO_DATE(wpostmeta.meta_value, '%m/%d/%Y') <= DATE(NOW())

Answer 2

只需将其添加到where子句：

SELECT wposts.*
FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta
WHERE wposts.ID = wpostmeta.post_id
  AND wpostmeta.meta_key = 'date'
  AND wposts.post_status = 'publish'
  AND wposts.post_type = 'games'
  AND STR_TO_DATE(wpostmeta.meta_value, '%m/%d/%Y') < NOW()
ORDER BY STR_TO_DATE(wpostmeta.meta_value, '%m/%d/%Y') ASC

Answer 3

如果没有看到你的数据行，我会认为这样的事情可以解决问题：

$today = "12/16/2011";

$querystr = "SELECT wposts.*
            FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta
            WHERE wposts.ID = wpostmeta.post_id
            AND wpostmeta.meta_key = 'date'
            AND wposts.post_status = 'publish'
            AND wposts.post_type = 'games'
            STR_TO_DATE(wpostmeta.meta_value, '%m/%d/%Y') <= $today;
            ORDER BY STR_TO_DATE(wpostmeta.meta_value, '%m/%d/%Y') ASC";

您在PHP中以与％m /％d /％Y相同的格式生成今天的日期

Answer 4

WHERE STR_TO_DATE >= [start DATE] AND STR_TO_DATE <= [END DATE]

MYSQL按日期排序，最大日期

4 个答案: