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Check if OneToOneField is None in Django
... doesn't work all the time. In case you want to work with select_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(object, 'onetoonerevrelattr') and object.onetoonerevrelatt...
Best way to do multiple constructors in PHP
...l properties from array
}
}
?>
Then if i want a Student where i know the ID:
$student = Student::withID( $id );
Or if i have an array of the db row:
$student = Student::withRow( $row );
Technically you're not building multiple constructors, just static helper methods, but you get to ...
Difference between except: and except Exception as e: in Python
...pt and except Exception. "Something to watch out for" looks a little weird now, but at the time I expected Python to pick the most specific except block, regardless of where it was, and was a little disappointed to find out otherwise.
– Vanessa Phipps
Sep 5 '14...
What is the difference between char, nchar, varchar, and nvarchar in SQL Server?
...is helps someone out there because I was struggling with it for a bit just now!
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Downloading Java JDK on Linux via wget is shown license page instead
..._linux-x64_bin.tar.gz
UPDATED FOR JDK 9
it looks like you can download it now directly from java.net without sending a header
wget http://download.java.net/java/GA/jdk9/9/binaries/jdk-9+181_linux-x64_bin.tar.gz
UPDATED FOR JDK 8u191
TAR GZ:
wget --no-cookies --no-check-certificate --header "Cookie...
Handling an empty UITableView. Print a friendly message
...bleView.emptyDataSetDelegate = self
tableView.tableFooterView = UIView()
Now all you have to do to show the emptystate is:
//Add title for empty dataset
func titleForEmptyDataSet(scrollView: UIScrollView!) -> NSAttributedString! {
let str = "Welcome"
let attrs = [NSFontAttributeName: ...
Get user info via Google API
...umara you could have edited it yourself, but don't worry as I have done it now. For all we know they could have omitted the code define(email, 'email') ;)
– verbumSapienti
Apr 23 '14 at 13:03
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Can I create links with 'target=“_blank”' in Markdown?
...
Ya know what? I agree with you and alex. I decided not to use _blank at all. It's a better user experience to keep things in one browser. They can just hit back or command-click (Mac user here :)), like you say.
...
“Inner exception” (with traceback) in Python?
...o the original exception's error message, but keep other details intact.
Known Exception Type
try:
sock_common = xmlrpclib.ServerProxy(rpc_url+'/common')
self.user_id = sock_common.login(self.dbname, username, self.pwd)
except IOError:
_, ex, traceback = sys.exc_info()
message = "C...
Python 3 ImportError: No module named 'ConfigParser'
... A moving target on this one but I use pip3 install mysql-connector. Now available from MySQL for python3 support. release at time of typing is 2.1.3.
– Longmang
Jun 7 '16 at 9:42
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