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Django ModelForm: What is save(commit=False) used for?
...er = self.request.user
attachment.date_attached = timezone.now()
attachment.competency = competency
attachment.filename = request.FILES['attachment'].name
if attachment.filename.lower().endswith(('.png','jpg','jpeg','.ai','.bmp','.gif',...
Removing list of vms in vagrant cache
...ne is correct to not be aware of deleted Vagrant directories as Vagrant's knowledge of the VM it managed in that directory was removed when its files managing the VM were. It's the hypervisor's problem now.
– bschlueter
Aug 9 '16 at 20:25
...
What is the point of a private pure virtual function?
... virtual void SetState( int var, int val ) {/*some implementation*/}
};
Now let's assume you want to create a derived class and you need to provide a new implementation only for the method, that takes two ints as arguments.
class MyTurbochargedV8 : public Engine
{
public:
// To prevent SetSt...
HashMap get/put complexity
...mplementations, which ought to be good.
On top of that, what you may not know (again, this is based in reading source - it's not guaranteed) is that HashMap stirs the hash before using it, to mix entropy from throughout the word into the bottom bits, which is where it's needed for all but the huges...
Logging errors in ASP.NET MVC
...der
.AppendLine("----------")
.AppendLine(DateTime.Now.ToString())
.AppendFormat("Source:\t{0}", filterContext.Exception.Source)
.AppendLine()
.AppendFormat("Target:\t{0}", filterContext.Exception.TargetSite)
.AppendLine()
...
Why is JsonRequestBehavior needed?
... a malicious user can gain access to
the JSON payload through a process known as JSON Hijacking. You do not
want to return sensitive information using JSON in a GET request. For
more details, see Phil's post at
http://haacked.com/archive/2009/06/24/json-hijacking.aspx/ or this SO post.
...
Chrome Extension Message passing: response not sent
...
@funforums FYI, this behavior is now documented in the messaging documentation (the difference is here: codereview.chromium.org/1874133002/patch/80001/90002).
– Rob W
Jun 16 '16 at 22:56
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Add one row to pandas DataFrame
...
If you know the number of entries ex ante, you should preallocate the space by also providing the index (taking the data example from a different answer):
import pandas as pd
import numpy as np
# we know we're gonna have 5 rows of d...
How to choose the right bean scope?
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@KishorPrakash: a while is now 6 months ago. ;-)
– Kukeltje
Nov 1 '19 at 10:22
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VB.NET equivalent of C# property shorthand?
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@rap, now implement "public string FirstName {get; private set;}" in VB :P
– Blorgbeard is out
Mar 18 '14 at 21:11
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