小编Dan*_*iel的帖子

如何从旋转木马获取当前索引？

在这种情况下,我使用无序列表.我知道我可以搜索列表项来查找具有"活动"CSS类的项目,但我想知道我是否可以直接询问轮播对象.

附加:能够访问目标索引(在"幻灯片"事件上)也很方便.再次,我可以通过搜索:

var idx = $('.carousel-inner li.active').index();

...然后根据方向添加/减去,但我希望有更清洁的东西.

我继承了将生产MySQL数据库转换为Postgres的需求.使用简单的SQL语句创建表/函数(使用Navicat生成半自动转换)时,大多数情况下处理都没有问题,但现在我遇到了转换有点复杂视图的问题.

研究表明,这可能是由于两个DB如何处理子查询(WHERE语句)的差异,也许这仅仅是语法差异.此处的业务逻辑未知,因为代码库已从其他开发人员继承.

运行以下(使用Laravel迁移/ PHP脚本):

SELECT 
parent.is_owner AS is_owner,
parent.brand AS first_name,
parent.id AS id,
(SELECT count(c.id)
 FROM campaigns c
 WHERE((
       (c.user_id = parent.id)
       OR
       (c.user_id = child.id)
       )
       AND
       (c.campaign_status_id = 4)
))
AS current_campaigns,
(SELECT count(c.id)
    FROM campaigns c
    WHERE
        ((
        (c.user_id = parent.id)
        OR (c.user_id = child.id)
        )
        AND (c.campaign_status_id = 5)
))
AS past_campaigns,
(SELECT count(c.id)
    FROM campaigns c
    WHERE
        ((
         (c.user_id = parent.id)
         OR (c.user_id = child.id))
         AND (c.campaign_status_id = 2)
        ))
    AS pending_campaigns,
(SELECT count(c.id) …