大约有 12,000 项符合查询结果（耗时：0.0511秒） [XML]
Laravel orderBy on a relationship
...is->hasMany('Comment');
}
}
class Controller
{
public function index()
{
$column = Input::get('orderBy', 'defaultColumn');
$comments = User::find(1)->comments()->orderBy($column)->get();
// use $comments in the template
}
}
default User model +...
StatusbarTools 扩展 - 状态栏自定义工具 · App Inventor 2 中文网
...
故障排除
常见问题
Q: 状态栏颜色设置无效？
A: 检查应用是否具有必要的权限，某些设备需要额外的设置。
Q: 图标颜色不改变？
A: 确保使用正确的参数值（”Light” 或 “Dark”），检查设备...
Are iframes considered 'bad practice'? [closed]
... you can use them to force localstorage based cache the page by making the index page a script that detects if the subpage is in localstorage. Then, document.write it from localstorage if its there, and if not add in an iframe to that subpage. In that subpage, have a script to store the subpages HT...
What is the maximum value for an int32?
...y rule to remember 1,867,996,680? I find it difficult to remember at which index to start looking....
– Alderath
Jan 13 '16 at 8:35
10
...
How do I limit the number of returned items?
...ith exec() instead. Therefore, with the mongoose 3.8.1 you'd do this:
var q = models.Post.find({published: true}).sort({'date': -1}).limit(20);
q.exec(function(err, posts) {
// `posts` will be of length 20
});
or you can chain it together simply like that:
models.Post
.find({published: tr...
How do I get the parent directory in Python?
...me is the function for this, like a+=5-4 is more convoluted than a+=1. The question requested only the parent directory, not whether is exists or the true parent directory assuming symbolic links get in the way.
– tzot
May 24 '10 at 12:03
...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...// Option 2:
unsigned char * p = (unsigned char *) &v;
unsigned char * q = (unsigned char *) &c;
q[3] = BitReverseTable256[p[0]];
q[2] = BitReverseTable256[p[1]];
q[1] = BitReverseTable256[p[2]];
q[0] = BitReverseTable256[p[3]];
You can extend this idea to 64-bit ints, or trade off memo...
Looping through the content of a file in Bash
...set inside the loop are lost when it exits (see bash-hackers.org/wiki/doku.php/mirroring/bashfaq/024). This can be very annoying (depending on what you're trying to do in the loop).
– Gordon Davisson
Oct 6 '09 at 0:57
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MySQL Query GROUP BY day / month / year
...ould not perform well because a format function wouldn't be able to use an index on the date column.
– Sonny
Oct 10 '11 at 13:09
...
Delete all the queues from RabbitMQ?
I installed rabbitmqadmin and was able to list all the exchanges and queues. How can I use rabbitmqadmin or rabbitmqctl to delete all the queues.
...