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Renaming table in rails
...n't going to work. Instead you'll have to create an instance of the class, and call the method on the instance, like this: Class.new.method.
[EDIT]
In this instance, ActiveRecord::ConnectionAdapters::SchemaStatements isn't even a class (as pointed out by cam), which means that you can't even create...
Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...talk at ( Pete Hunt: React: Rethinking best practices -- JSConf EU 2013 ) and the speaker mentioned that dirty-checking of the model can be slow. But isn't calculating the diff between virtual DOMs actually even less performant since the virtual DOM, in most of the cases, should be bigger than mode...
What components are MVC in JSF MVC framework?
In JSF MVC framework who is Model, View, and Controller?
4 Answers
4
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How to expire session due to inactivity in Django?
...very request like so.
request.session['last_activity'] = datetime.now()
and add a middleware to detect if the session is expired. something like this should handle the whole process...
from datetime import datetime
from django.http import HttpResponseRedirect
class SessionExpiredMiddleware:
...
What is the difference between NaN and None?
I am reading two columns of a csv file using pandas readcsv() and then assigning the values to a dictionary. The columns contain strings of numbers and letters. Occasionally there are cases where a cell is empty. In my opinion, the value read to that dictionary entry should be None but instead ...
Where is the documentation for the values() method of Enum?
...ted Jan 10 '19 at 5:02
Justin Standard
20.7k2222 gold badges7474 silver badges8989 bronze badges
answered Dec 1 '12 at 11:58
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What are the differences between .gitignore and .gitkeep?
What are the differences between .gitignore and .gitkeep ? Are they the same thing with a different name, or do they both serve a different function?
...
How to calculate time in hours between two dates in iOS
...nds-into-minutes
--edit: See ÐąrέÐέvil's answer below for correctly handling daylight savings/leap seconds
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git: Show index diff in commit message as comment
...nows to ignore them as though they are comments.
– Brandon Rhodes
Mar 25 '12 at 11:21
@BrandonRhodes How to tell git b...
How do you work with an array of jQuery Deferreds?
...then the schemas, then finally initialize the application with the schemas and urls for the various data objects. As the user navigates the application, data objects are loaded, validated against the schema, and displayed. As the user CRUDs the data, the schemas provide first-pass validation.
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