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How do I get user IP address in django?
...quest):
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
ip = x_forwarded_for.split(',')[0]
else:
ip = request.META.get('REMOTE_ADDR')
return ip
Make sure you have reverse proxy (if any) configured correctly (e.g. mod_rpaf installed for...
There is no ListBox.SelectionMode=“None”, is there another way to disable selection in a listbox?
...efault, ItemsControl doesn't support virtualization of its child elements. If you have a lot of items, virtualization can reduce memory usage and improve performance, in which case you could use approach 2 and style the ListBox, or add virtualisation to your ItemsControl.
Approach 2 - Styling ListBo...
Why does Convert.ToString(null) return a different value if you cast null?
...String(string s);
The C# compiler essentially tries to pick the most specific overload which will work with the input. A null value is convertible to any reference type. In this case string is more specific than object and hence it will be picked as the winner.
In the null as object you've so...
How do I use Wget to download all images into a single folder, from a URL?
...
Try this:
wget -nd -r -P /save/location -A jpeg,jpg,bmp,gif,png http://www.somedomain.com
Here is some more information:
-nd prevents the creation of a directory hierarchy (i.e. no directories).
-r enables recursive retrieval. See Recursive Download for more information.
-P se...
What is the usefulness of `enable_shared_from_this`?
...;Y>(this);
}
}
The shared pointer that this returned will have a different reference count from the "proper" one, and one of them will end up losing and holding a dangling reference when the object is deleted.
enable_shared_from_this has become part of C++ 11 standard. You can also get it ...
How to delete/unset the properties of a javascript object? [duplicate]
...to remove/unset the properties of a JS object so they'll no longer come up if I loop through the object doing for (var i in myObject) . How can this be done?
...
What's the meaning of * (asterisk) in XAML ColumnDefinition?
...ny available remaining space
The * is prefixed by a number (default is 1 if no number is specified). The available space is divided among the starred columns in proportion to the prefix number.
If you have this definition
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.07*"/>
...
Does static constexpr variable inside a function make sense?
If I have a variable inside a function (say, a large array), does it make sense to declare it both static and constexpr ? constexpr guarantees that the array is created at compile time, so would the static be useless?
...
How to calculate time elapsed in bash script?
...ate into performing the time arithmetic for you, by writing date -u -d @"$diff" +'%-Mm %-Ss'. (That interprets $diff as seconds-since-the-epoch, and computes the minutes and seconds in UTC.) That's probably not any more elegant, though, just better obfuscated. :-P
– ruakh
...
How do I disable text selection with CSS or JavaScript? [duplicate]
...
Note that it's a non-standard feature (i.e. not a part of any specification). It is not guaranteed to work everywhere, and there might be differences in implementation among browsers and in the future browsers can drop support for it.
More information can be found in Mozilla Developer Ne...