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How to redirect to a 404 in Rails?
...f your code, letting you do nice things like:
user = User.find_by_email(params[:email]) or not_found
user.do_something!
without having to write ugly conditional statements.
As a bonus, it's also super easy to handle in tests. For example, in an rspec integration test:
# RSpec 1
lambda {
...
libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
...
…
// event初始化
event_init();
init_server(port, params…);
event_dispatch();
return 0;
}
int init_server(short port, params…)
{
int listen_fd = setup_tcp_server(port);
set_non_block(listen_fd);
// 将输入的参数params… 组织为一...
What is the difference between 'E', 'T', and '?' for Java generics?
...ce between the first two - they're just using different names for the type parameter (E or T).
The third isn't a valid declaration - ? is used as a wildcard which is used when providing a type argument, e.g. List<?> foo = ... means that foo refers to a list of some type, but we don't know wha...
How to handle command-line arguments in PowerShell
...
You are reinventing the wheel. Normal PowerShell scripts have parameters starting with -, like script.ps1 -server http://devserver
Then you handle them in param section in the beginning of the file.
You can also assign default values to your params, read them from console if not avail...
reducing number of plot ticks
...o position them (currently only with MaxNLocator), there is pyplot.locator_params,
pyplot.locator_params(nbins=4)
You can specify specific axis in this method as mentioned below, default is both:
# To specify the number of ticks on both or any single axes
pyplot.locator_params(axis='y', nbins=6)...
How to convert std::string to LPCSTR?
...ated char string of char (often a buffer is passed and used as an 'output' param)
LPCWSTR: pointer to null terminated string of const wchar_t
LPWSTR: pointer to null terminated string of wchar_t (often a buffer is passed and used as an 'output' param)
To "convert" a std::string to a LPCSTR depend...
Can we pass parameters to a view in SQL?
Can we pass a parameter to a view in Microsoft SQL Server?
19 Answers
19
...
How to convert SecureString to System.String?
...egate scrubbed on return.
/// </summary>
/// <typeparam name="T">Generic type returned by Func delegate</typeparam>
/// <param name="action">Func delegate which will receive the decrypted password pinned in memory as a String object</param>
...
PreparedStatement with list of parameters in a IN clause [duplicate]
...oString() + ")";
PreparedStatement pstmt = ...
And then happily set the params
int index = 1;
for( Object o : possibleValue ) {
pstmt.setObject( index++, o ); // or whatever it applies
}
share
|
...
How to add a filter class in Spring Boot?
...er-name>
<url-pattern>/url/*</url-pattern>
<init-param>
<param-name>paramName</param-name>
<param-value>paramValue</param-value>
</init-param>
</filter-mapping>
These will be the two beans in your @Configuration fil...