Question

我有一张表有字段的表。

id,is_public,added_by,is_delete

情景可能性：

当前用户可以查看记录：

的 added_by admin = 0 OR own id
的 added_by another user AND is_public = 1
**is_deleted=0**

current user's and admin's record is_public='0' 记录

SQLFIDDLE

我的疑问：

SELECT * FROM tblname 
WHERE 
is_delete='0' 
AND (added_by='0' OR added_by='15') //ex. current user id = 15
AND is_public='1'

但此查询未提供其他用户的is_public='1'记录

请帮助

Answer 1

您需要在选择中使用OR运算符：

SELECT * FROM tblname 
WHERE 
is_delete='0' AND (
   (added_by='0' OR added_by='15') //ex. current user id = 15
   OR is_public='1'
)

如果用户应该看到任何已删除的记录，则可以使用此sql：

SELECT * FROM tblname 
WHERE 
added_by='15' //ex. current user id = 15
OR (
   is_delete='0' AND (added_by='0' OR is_public='1')
);

Answer 2

怎么样：

let firstName = "David"
// must have 1 or more vowels
let REGEX = "[aeiou]"
let check = NSPredicate(format: "SELF CONTAINS %@", REGEX).evaluateWithObject(firstName)

通过这种方式，您只能展示来自同一用户或公开

的未删除帖子

更新：如果您希望节目当前用户也删除了帖子（所以用户的所有帖子都是0/14，其他用户只有公开和未删除的帖子：

SELECT * FROM tblname 
WHERE 
is_delete='0' AND (
(added_by='0' OR added_by='15') //ex. current user id = 15
OR is_public='1')

Answer 3

我尝试了一些并取得了成功，谢谢大家的支持：）

SELECT * FROM tblname 
WHERE 
is_delete = '0' AND 
( user_id = '0' OR user_id = '15' OR is_public = '1' )

如何为此

3 个答案: