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Creating an empty file in C#
...r wrapping it in a helper method, e.g.
public static void CreateEmptyFile(string filename)
{
File.Create(filename).Dispose();
}
Note that calling Dispose directly instead of using a using statement doesn't really make much difference here as far as I can tell - the only way it could make a di...
Binary Data in MySQL [closed]
...mysql_select_db("binary_data");
$data = mysql_real_escape_string(fread(fopen($form_data, "r"), filesize($form_data)));
$result = mysql_query("INSERT INTO binary_data (description, bin_data, filename, filesize, filetype) ".
"VALUES...
Why can tuples contain mutable items?
...der one roof. For example,
s = ('www.python.org', 80)
brings together a string and a number so that the host/port pair can be passed around as a socket, a composite object. Viewed in that light, it is perfectly reasonable to have mutable components.
Immutability goes hand-in-hand with another pr...
Entity Framework is Too Slow. What are my options? [closed]
...timise (using projections) those few queries where you really need use the extra benefit. EF and POCO gives you reasonable default, which is very nice!
– Victor
Jan 16 '14 at 21:49
...
Entity Framework 5 Updating a Record
...hen to call, for example:
public void UpdatePasswordAndEmail(long userId, string password, string email)
{
var user = new User {UserId = userId, Password = password, Email = email};
Update(user, u => u.Password, u => u.Email);
Save();
}
I like one trip to the database. Its pro...
Placeholder in UITextView
...HolderTextView : UITextView
@property (nonatomic, retain) IBInspectable NSString *placeholder;
@property (nonatomic, retain) IBInspectable UIColor *placeholderColor;
-(void)textChanged:(NSNotification*)notification;
@end
UIPlaceHolderTextView.m:
#import "UIPlaceHolderTextView.h"
@interface UI...
Log to the base 2 in python
...n_function_or_method
Base Class: <type 'builtin_function_or_method'>
String Form: <built-in function log>
Namespace: Interactive
Docstring:
log(x[, base]) -> the logarithm of x to the given base.
If the base not specified, returns the natural logarithm (base e) of x.
In ...
Making 'git log' ignore changes for certain paths
...ath-match checks on individual paths under the directory would cause those extra paths to be filtered out, the only difference from using the wrong function was unnecessary computation.
The second of those bad calls to do_match_pathspec() was involved -- via either direct movement or via copying+edi...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
...
Unless all keys are known to be strings, option 2 is an abuse of a Python 2 implementation detail (the fact that some builtins implemented in C bypassed the expected checks on keyword arguments). In Python 3 (and in PyPy), option 2 will fail with non-string...
Logging Clientside JavaScript Errors on Server [closed]
...u can also encrypt a token that includes the user's ID, IP, a small random string (to foil known-plaintext attacks if your encryption algorithm is fast but weak), and a timestamp and include that as a JS variable in the page. This can then be submitted with the error report and checked before allow...