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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 {
...
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 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...
Separation of business logic and data access in django
...league of mine that uses this layering technique a lot with Java projects (JSF), e.g:
models.py
class Book:
author = models.ForeignKey(User)
title = models.CharField(max_length=125)
class Meta:
app_label = "library"
services.py
from library.models import Book
def get_books(li...
Can we pass parameters to a view in SQL?
Can we pass a parameter to a view in Microsoft SQL Server?
19 Answers
19
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How to call function of one php file from another php file and pass parameters to it?
...o call a function in one PHP file from a second PHP file and also pass two parameters to that function. How can I do this?
...
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
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...
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>
...
How to make an array of arrays in Java
...s DOES NOT ensure that the object will be available on next call !
* @param x
* @param y
* @return
* @throws IndexOutOfBoundsException
*/public boolean exists( int x , int y ) throws IndexOutOfBoundsException
{
if( x >= _width || x < 0 )
{
...
Android Center text on canvas
...ate static float TEXT_HEIGHT_RATIO = 0.82f;
private FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(0, 0);
private Rect r = new Rect();
private Paint paint = new Paint();
private Paint rectPaint = new Paint();
public MyView(Context context) {
super(contex...