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Correct way to use get_or_create?
I'm trying to use get_or_create for some fields in my forms, but I'm getting a 500 error when I try to do so.
5 Answers
...
is not JSON serializable
... filled with django objects:
data = serializers.serialize('json', self.get_queryset())
return HttpResponse(data, content_type="application/json")
In your case, self.get_queryset() contains a mix of django objects and dicts inside.
One option is to get rid of model instances in the self.get_query...
How do I cast a variable in Scala?
...is not of the given type:
g match {
case g2: Graphics2D => g2
case _ => throw new ClassCastException
}
This block replicates the semantics of the asInstanceOf[Graphics2D] method, but with greater flexibility. For example, you could provide different branches for various types, effectiv...
Why are Oracle table/column/index names limited to 30 characters?
...page... http://stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/ap_standard_sql001.htm
(Looking for a ref)
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Explain the encapsulated anonymous function syntax
...unction (x, y) {
return x * y;
};
4- A named function expression func_name, assigned to the variable multiply:
var multiply = function func_name(x, y) {
return x * y;
};
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What is a word boundary in regex?
...tring if it begins or ends (respectively) with a word character ([0-9A-Za-z_]).
So, in the string "-12", it would match before the 1 or after the 2. The dash is not a word character.
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improv...
Setup a Git server with msysgit on Windows [closed]
...where you choose between the Git
ssh and PuTTY ssh. You'll have to
set GIT_SSH manually if you use PuTTY.
I didn't follow one part of the
instructions and that was installing
Tortoise - I used the command line
instead as that's how I prefer to
learn a vcs like I did with rcs and Subversion and
foun...
java: HashMap not working
..., int[]> map = new HashMap<>();
int x = 1;
//put x in map
int[] x_ = new int[]{x};
map.put("x", x_);
//get the value of x
int y = map.get("x")[0];
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How to write logs in text file when using java.util.logging.Logger
...g file nicer :)
SimpleDateFormat format = new SimpleDateFormat("M-d_HHmmss");
try {
fh = new FileHandler("C:/temp/test/MyLogFile_"
+ format.format(Calendar.getInstance().getTime()) + ".log");
} catch (Exception e) {
e.printStackTrace();...
How to import an existing X.509 certificate and private key in Java keystore to use in SSL?
...j's 'workaround' link to this 2008 post: cunning.sharp.fm/2008/06/importing_private_keys_into_a.html
– cloudsurfin
Feb 11 '16 at 0:44
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