大约有 47,000 项符合查询结果(耗时:0.0922秒) [XML]
Laravel 4: how to “order by” using Eloquent ORM [duplicate]
...escending($query)
{
return $query->orderBy('id','DESC');
}
And outside the model you would have:
$posts = Post::idDescending()->get();
More info: http://laravel.com/docs/eloquent#query-scopes
share
...
Count number of files within a directory in Linux? [closed]
... the top adding up the file sizes for a total amount. You should use ls -1 and not the ls -l. Also if one wants hidden files but without the directories . and .. you should use ls -1A | wc -l
– Daniel Biegler
Mar 7 '18 at 11:02
...
Why Large Object Heap and why do we care?
... Gen0 collections, but if one creates and abandons e.g. an array of 22,000 strings to which no outside references exist, what advantage exists to having Gen0 and Gen1 collections tag all 22,000 strings as "live" without regard for whether any reference exists to the array?
– su...
Opposite of %in%: exclude rows with values specified in a vector
... to Z. I want to create a subset D2, which excludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in%
...
Google Chrome redirecting localhost to https
... .test seems safest, though clunky due to namespace clashes with all those strings used in TDD/.test() methods etc.
– dwelle
Sep 22 '17 at 12:53
...
How to create a readonly textbox in ASP.NET MVC3 Razor
... named EditorTemplates in ~/Views/Shared/
Create a razor PartialView named String.cshtml
Fill the String.cshtml with this code:
@if(ViewData.ModelMetadata.IsReadOnly) {
@Html.TextBox("", ViewData.TemplateInfo.FormattedModelValue,
new { @class = "text-box single-line readonly", @readonly...
How do I dump the data of some SQLite3 tables?
...ch I can import into almost everything
.mode csv
-- use '.separator SOME_STRING' for something other than a comma.
.headers on
.out file.csv
select * from MyTable;
If you want to reinsert into a different SQLite database then:
.mode insert <target_table_name>
.out file.sql
select * fro...
How do you list the primary key of a SQL Server table?
... and TableName.
IMHO, this solution is very generic and does not use any string literals, so it will run on any machine.
select
s.name as SchemaName,
t.name as TableName,
tc.name as ColumnName,
ic.key_ordinal as KeyOrderNr
from
sys.schemas s
inner join sys.tables t on...
java.net.UnknownHostException: Invalid hostname for server: local
...ther. Everything was right.
The Solution
Not calling trim() for the host string which contained whitespace. In writing a proxy server the host was obtained from HTTP headers with the use of split(":") by semicolons for the HOST header. This left whitespace, and causes the UnknownHostException as a...
Emacs on Mac OS X Leopard key bindings
...wn
Double click the "page down" option to edit it. Change Action to "send string to shell" and enter \026 as the string. Save it.
Page Up
Double click the "page up" button to edit it. Change Action to "send string to shell" and enter \033v as the string. Save it.
...
