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Can you do greater than comparison on a date in a Rails 3 search?
... > ?", p[:date]).
order('date ASC, created_at ASC')
or you can also convert everything into the SQL notation
Note.
where("user_id = ? AND notetype = ? AND date > ?", current_user.id, p[:note_type], p[:date]).
order('date ASC, created_at ASC')
...
Why is it impossible to build a compiler that can determine if a C++ function will change the value
... variable and 0 when the function doesn't. Then what should this program print?
int variable = 0;
void f() {
if (modifies_variable(f, variable)) {
/* do nothing */
} else {
/* modify variable */
variable = 1;
}
}
int main(int argc, char **argv) {
if (modifi...
Ant: How to execute a command for each file in directory?
...is evil; write a custom ant task.
ant-contrib is evil because it tries to convert ant from a declarative style to an imperative style. But xml makes a crap programming language.
By contrast a custom ant task allows you to write in a real language (Java), with a real IDE, where you can write unit t...
What is the difference between & and && in Java?
... true , and the & operator is used to do Bit-wise operations on two integer types.
13 Answers
...
How to sort with a lambda?
... have written so far makes little sense. If mProperty is supposed to be an int a.mProperty>b.mProperty will definitely yield a bool.
– sellibitze
Feb 26 '11 at 0:32
1
...
Python Pandas: Get index of rows which column matches certain value
...the index,
In [56]: idx = df.index[df['BoolCol']]
In [57]: idx
Out[57]: Int64Index([10, 40, 50], dtype='int64')
then you can select the rows using loc instead of iloc:
In [58]: df.loc[idx]
Out[58]:
BoolCol
10 True
40 True
50 True
[3 rows x 1 columns]
Note that loc can also ac...
Java Generics (Wildcards)
... E, we can get elements out of the structure, but we cannot put
elements into the structure
List<Integer> ints = new ArrayList<Integer>();
ints.add(1);
ints.add(2);
List<? extends Number> nums = ints;
nums.add(3.14); // compile-time error
assert ints.toString().equals("[1, 2, 3...
Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
... division by itself: (from http://github.com/Jon889/JPGeneral)
//.h file
@interface UIColor (JPExtras)
+ (UIColor *)colorWithR:(CGFloat)red G:(CGFloat)green B:(CGFloat)blue A:(CGFloat)alpha;
@end
//.m file
@implementation UIColor (JPExtras)
+ (UIColor *)colorWithR:(CGFloat)red G:(CGFloat)green B:(...
What does java.lang.Thread.interrupt() do?
Could you explain what java.lang.Thread.interrupt() does when invoked?
9 Answers
9
...
Android – Listen For Incoming SMS Messages
...ces preferences;
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){
Bundle bundle = intent.getExtras(); //---get the SMS message...