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how to add records to has_many :through association in rails
...
I think you can simply do this:
@cust = Customer.new(params[:customer])
@cust.houses << House.find(params[:house_id])
Or when creating a new house for a customer:
@cust = Customer.new(params[:customer])
@cust.houses.create(params[:house])
You can also add via ids:...
How do I best silence a warning about unused variables?
...r sees it is used. This is portable between compilers.
E.g.
void foo(int param1, int param2)
{
(void)param2;
bar(param1);
}
Or,
#define UNUSED(expr) do { (void)(expr); } while (0)
...
void foo(int param1, int param2)
{
UNUSED(param2);
bar(param1);
}
...
How to read the RGB value of a given pixel in Python?
...
Be careful, the 'reshape' params list should be (height, width, channels). and for rgba images you could include image.mode = RGBA with channels = 4
– gmarsi
Jun 1 at 8:18
...
How to strip HTML tags from string in JavaScript? [duplicate]
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If you use the allowed param you are vulnerable to XSS: stripTags('<p onclick="alert(1)">mytext</p>', '<p>') returns <p onclick="alert(1)">mytext</p>
– Chris Cinelli
Feb 20 '16 a...
Pass array to mvc Action via AJAX
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@Tom Beech As of jQuery 1.4, the $.param() method serializes deep objects recursively to accommodate modern scripting languages and frameworks such as PHP and Ruby on Rails. You can disable this functionality globally by setting jQuery.ajaxSettings.traditional...
How do I trap ctrl-c (SIGINT) in a C# console app
...tions for the calling process
/// </summary>
/// <param name="handler">A pointer to the application-defined HandlerRoutine function to be added or removed. This parameter can be NULL.</param>
/// <param name="add">If this parameter is TRUE, the handler...
log4j: Log output of a specific class to a specific appender
...er name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>
</layout>
</appender...
Execute PowerShell Script from C# with Commandline Arguments
... command:
Command myCommand = new Command(scriptfile);
then you can add parameters with
CommandParameter testParam = new CommandParameter("key","value");
myCommand.Parameters.Add(testParam);
and finally
pipeline.Commands.Add(myCommand);
Here is the complete, edited code:
RunspaceConfigur...
How to use java.net.URLConnection to fire and handle HTTP requests?
...lf.
Preparing
We first need to know at least the URL and the charset. The parameters are optional and depend on the functional requirements.
String url = "http://example.com";
String charset = "UTF-8"; // Or in Java 7 and later, use the constant: java.nio.charset.StandardCharsets.UTF_8.name()
Stri...
How do you detect Credit card type based on number?
...ub VISA/MC cards too:
/**
* Obtain a brand constant from a PAN
*
* @param string $pan Credit card number
* @param bool $include_sub_types Include detection of sub visa brands
* @return string
*/
public static function getCardBrand($pan, $include_sub_types = false)
{
...