大约有 1,400 项符合查询结果（耗时：0.0320秒） [XML]
How do you discover model attributes in Rails?
... current_sign_in_at: datetime, last_sign_in_at: datetime,
current_sign_in_ip: string, last_sign_in_ip: string, created_at: datetime,
updated_at: datetime)"
Alternatively, having run rake db:create and rake db:migrate for your development environment, the file db/schema.rb will contain the author...
What is the strict aliasing rule?
...an example that should not be surprising (live example):
int x = 10;
int *ip = &x;
std::cout << *ip << "\n";
*ip = 12;
std::cout << x << "\n";
We have a int* pointing to memory occupied by an int and this is a valid aliasing. The optimizer must assume that assignments...
Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
...ethod = :smtp
config.action_mailer.default_url_options = { :host => "my.ip.addr.here" }
config.action_mailer.smtp_settings = {
:address => "smtp.gmail.com",
:port => 587,
:domain => 'my.ip.addr.here:80',
:user_name => "my_email_name@gmail.com",
:password ...
How to write a scalable Tcp/Ip based server
...design phase of writing a new Windows Service application that accepts TCP/IP connections for long running connections (i.e. this is not like HTTP where there are many short connections, but rather a client connects and stays connected for hours or days or even weeks).
...
What are the Ruby Gotchas a newbie should be warned about? [closed]
...
Wikipedia Ruby gotchas
From the article:
Names which begin with a capital letter are treated as constants, so local variables should begin with a lowercase letter.
The characters $ and @ do not indicate variable data type as ...
Difference between @import and link in CSS
...
The <link> directive can allow for multiple css be loaded and interpreted asyncronously.
the @import directive forces the browser* to wait until the imported script is loaded inline to the parent script before it can be correctly processed by it's engine, since t...
TCP loopback connection vs Unix Domain Socket performance
... the overhead of TCP (congestion control, flow control, stream management (IP packet ordering, retransmission, etc) ). Unix domain sockets do not do any of the above because it was designed from the ground up to be ran locally, meaning no congestion issues, no speed differences between server/client...
ADB Shell Input Events
...t; Developer Options > Check the option POINTER SLOCATION
..
Swipe X1 Y1 X2 Y2 [duration(ms)]:
adb shell input swipe 100 500 100 1450 100
in this example X1=100, Y1=500, X2=100, Y2=1450, Duration = 100ms
..
LongPress X Y:
adb shell input swipe 100 500 100 500 250
...
nginx server_name wildcard or catch-all
...ich serves several websites. The first is a status message on the server's IP address. The second is an admin console on admin.domain.com . These work great. Now I'd like all other domain requests to go to a single index.php - I have loads of domains and subdomains and it's impractical to list th...
Java JDBC - How to connect to Oracle using Service Name instead of SID
...lso specify the TNS name in the JDBC URL as below:
jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS_LIST =(ADDRESS =(PROTOCOL=TCP)(HOST=blah.example.com)(PORT=1521)))(CONNECT_DATA=(SID=BLAHSID)(GLOBAL_NAME=BLAHSID.WORLD)(SERVER=DEDICATED)))
...