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Can a dictionary be passed to django models on create?
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I got bit by ForeignKeys. If your model has a ForeignKey called owner, then your data_dict should have an owner_id field. But django.forms.model_to_dict() returns a dict with an owner field. So you can't do MyModel(**model_to_dict(...
How to use PyCharm to debug Scrapy projects
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To add a bit to the accepted answer, after almost an hour I found I had to select the correct Run Configuration from the dropdown list (near the center of the icon toolbar), then click the Debug button in order to get it to work. Hope...
Polymorphism in C++
...orm some operation and is being given values x and y as inputs.
To exhibit polymorphism, f() must be able to operate with values of at least two distinct types (e.g. int and double), finding and executing distinct type-appropriate code.
C++ mechanisms for polymorphism
Explicit programmer-sp...
What is an example of the simplest possible Socket.io example?
...uld find involved http.createServer(). but what if you want to include a bit of socket.io magic in an existing webpage? here is the absolute easiest and smallest example i could come up with.
this just returns a string passed from the console UPPERCASED.
app.js
var http = require('http');
va...
How can I strip all punctuation from a string in JavaScript using regex?
...mplex tasks (and to create patterns for non-English words) it takes a fair bit more code. Still, for a quick & concise regex to strip punctuation it works :)
– jacobedawson
Jul 10 '17 at 11:27
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How to change default timezone for Active Record in Rails?
In my application.rb I came across the following comment
10 Answers
10
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Python decorators in classes
... class, then it isn't clear that the functions are being decorated. It's a bit weird that you can't use @staticmethod on the decorator itself, but at least it works.
– mgiuca
Apr 16 '12 at 1:52
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Unzip a file with php
...ally be published online somewhere as the correct way to unzip a file is a bit frightening.
PHP has built-in extensions for dealing with compressed files. There should be no need to use system calls for this. ZipArchivedocs is one option.
$zip = new ZipArchive;
$res = $zip->open('file.zip');
if...
Can you use if/else conditions in CSS?
...neral!
You have the browser conditionals like:
/*[if IE]*/
body {height:100%;}
/*[endif]*/
But nobody keeps you from using Javascript to alter the DOM or assigning classes dynamically or even concatenating styles in your respective programming language.
I sometimes send css classes as strings...
Shortcut to comment out a block of code with sublime text
... shortcut to comment out or uncomment the selected text or current line:
Windows: Ctrl+/
Mac: Command ⌘+/
Linux: Ctrl+Shift+/
Alternatively, use the menu: Edit > Comment
For the block comment you may want to use:
Windows: Ctrl+Shift+/
Mac: Command ⌘+Option/Alt+/
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