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How to encode the filename parameter of Content-Disposition header in HTTP?
... there is a comma (,) in the filename, e.g. Content-Disposition: filename="foo, bar.pdf". The result is that firefox downloads the file correctly but keeps the .part extension (e.g foo,bar.pdf-1.part). Then, of course the file won't open correctly because the application is not associated with .part...
What's the canonical way to check for type in Python?
...and this allows for types to be checked. Example of type hint syntax:
def foo(i: int):
return i
foo(5)
foo('oops')
In this case we want an error to be triggered for foo('oops') since the annotated type of the argument is int. The added type hint does not cause an error to occur when the scri...
Get file name from URL
...
URL url = new URL("http://www.example.com/some/path/to/a/file.xml?foo=bar#test");
System.out.println(FilenameUtils.getBaseName(url.getPath())); // -> file
System.out.println(FilenameUtils.getExtension(url.getPath())); // -> xml
System.out.println(FilenameUtils...
How do you unit test a Celery task?
... in Django is:
from django.test import TestCase, override_settings
from .foo import foo_celery_task
class MyTest(TestCase):
@override_settings(CELERY_ALWAYS_EAGER=True)
def test_foo(self):
self.assertTrue(foo_celery_task.delay())
...
how to permit an array with strong parameters
...t you can add it as hash if you want to avoid syntax error. params.permit(:foo, { bar: [] }, :zoo).
– Foo Bar Zoo
Mar 13 '18 at 20:28
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show...
Python Flask, how to set content type
...m flask import Response
@app.route('/ajax_ddl')
def ajax_ddl():
xml = 'foo'
return Response(xml, mimetype='text/xml')
The actual Content-Type is based on the mimetype parameter and the charset (defaults to UTF-8).
Response (and request) objects are documented here: http://werkzeug.pocoo.o...
Adding two Java 8 streams, or an extra element to a stream
...t and Stream.of, the first example could be written as follows:
Stream<Foo> stream = concat(stream1, concat(stream2, of(element)));
Importing static methods with generic names can result in code that becomes difficult to read and maintain (namespace pollution). So, it might be better to cre...
Modern way to filter STL container?
...e the example from cplusplus.com for std::copy_if:
std::vector<int> foo = {25,15,5,-5,-15};
std::vector<int> bar;
// copy only positive numbers:
std::copy_if (foo.begin(), foo.end(), std::back_inserter(bar), [](int i){return i>=0;} );
std::copy_if evaluates the lambda expression f...
Normalization in DOM parsing with java - how does it work?
...pty Text nodes.
This basically means that the following XML element
<foo>hello
wor
ld</foo>
could be represented like this in a denormalized node:
Element foo
Text node: ""
Text node: "Hello "
Text node: "wor"
Text node: "ld"
When normalized, the node will look l...
FirstOrDefault: Default value other than null
...d NullReferenceException when I'm working with collections:
public class Foo
{
public string Bar{get; set;}
}
void Main()
{
var list = new List<Foo>();
//before C# 6.0
string barCSharp5 = list.DefaultIfEmpty(new Foo()).FirstOrDefault().Bar;
//C# 6.0 or later
var barCS...