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Serializing class instance to JSON
...ps() only knows how to serialize a limited set of object types by default, all built-in types. List here: https://docs.python.org/3.3/library/json.html#encoders-and-decoders
One good solution would be to make your class inherit from JSONEncoder and then implement the JSONEncoder.default() function...
ModelSerializer using model property
... Meta is optional. If you omit fields, in the above example, you would get all the MyModel fields plus ext_link in the serialized data. And this is really awesome for complex models! EDIT: At least, this is true for djangorestframework==2.3.14.
– e.thompsy
Feb ...
What is the copy-and-swap idiom?
...s arguably the most nuanced and difficult. How should it be done? What pitfalls need to be avoided?
The copy-and-swap idiom is the solution, and elegantly assists the assignment operator in achieving two things: avoiding code duplication, and providing a strong exception guarantee.
How does it wor...
Android Center text on canvas
... at the center position: int xPos = (Width - textPaint.TextSize * Math.Abs(_text.Length / 2)) / 2; Not sure if there's a better way to accomplish this.
– paj7777
Apr 8 '13 at 9:06
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SQL query for today's date minus two months
I want to select all the records in a table where their date of entry is older then 2 months.
5 Answers
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Where do gems install?
...r gem environment.
In a terminal run gem env
You should see an entry INSTALLATION DIRECTORY, but there is also GEM PATHS which is where it's loading all your gems from in your current environment.
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Change Canvas.Left property in code behind?
... @JaredPar: at a guess I would say that since SetLeft is specifically a method of Canvas it understands what types it would make sense give a Left property to. It deems this to be UIElement, this perhaps increases the detection of faulty code where accidentally the wrong variable is passe...
Can extension methods be applied to interfaces?
... of Linq is built around interface extension methods.
Interfaces were actually one of the driving forces for the development of extension methods; since they can't implement any of their own functionality, extension methods are the easiest way of associating actual code with interface definitions.
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View git history for folder
How can I view git log history for all files within a folder ?
2 Answers
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HTML Body says cz-shortcut-listen=“true” with Chrome's Developer Tools?
...ou can just run a different Chrome user profile that has no extensions installed, but sometimes those very extensions - Colorzilla, even - are really useful for analysing web pages.
– iono
Feb 28 '13 at 7:12
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