Questions tagged [class-attributes]
170 questions
8
votes
3 answers
Deprecating fields in django model
I'm normalizing a database associated with a Django project and will be moving fields to different tables. As part of the implementation process, I'd like to throw a deprecation warning to my colleagues if they attempt to use the old attributes…

cck
- 193
- 1
- 14
8
votes
2 answers
Remove class attribute in inherited class Python
Consider such code:
class A ():
name = 7
description = 8
color = 9
class B(A):
pass
Class B now has (inherits) all attributes of class A. For some reason I want B not to inherit attribute 'color'. Is there a possibility to do…

Graf
- 1,437
- 3
- 17
- 27
8
votes
3 answers
How to pass a dynamic variable into the authorize attribute class in asp.net mvc?
How to pass a dynamic variable into the authorize attribute class in asp.net mvc?
For Example I have this piece of code, how can I pass a variable like userRoles variable into the Authorize attribute class?
private string userRoles;
private string…

Mo Haidar
- 3,748
- 6
- 37
- 76
8
votes
2 answers
python - Class attributes apparently not inherited
In a recent project I try to do something like this (more complex, but the same result):
class MetaA(type):
def __new__(cls, name, args, kwargs):
print kwargs["foo"]
return type.__new__(cls, name, args, kwargs)
class A(object):
…

thrstein
- 83
- 1
- 5
8
votes
2 answers
How to teach SpecFlow to add additional NUnit attributes to my test class
SpecFlow is great - and it helps us very much to do proper integration testing.
One thing I was wondering is whether there's a way to tell SpecFlow to add additional NUnit attributes to the test class it creates in the feature code-behind…

marc_s
- 732,580
- 175
- 1,330
- 1,459
8
votes
7 answers
Real world use of custom .NET attributes
What kind of things have you used custom .NET attributes for in the real world?
I've read several articles about them, but I have never used custom attributes.
I feel like I might be overlooking them when they could be useful.
I am talking about…

TWA
- 12,756
- 13
- 56
- 92
6
votes
5 answers
How to check multiple elements has same class using jquery?
Is it possible to minify this selector?
if ($("#element1").hasClass("highlight") && $("#element2").hasClass("highlight") && $("#element3").hasClass("highlight") && $("#element4").hasClass("highlight") && $("#element5").hasClass("highlight")) {
…

Sebastian
- 625
- 9
- 22
6
votes
3 answers
What's the simplest most elegant way to utilize a custom attribute
So a little confession, I've never written an attribute class. I understand they serve the purpose of decorating classes with flags or extra functionality possibly.
Can someone give me a quick example of not just creating and applying an attribute…

Jimmy Hoffa
- 5,909
- 30
- 53
6
votes
2 answers
When are python classes and class attributes garbage collected?
class Member(object):
def __init__(self, identifier):
self.identifier = identifier
print "Member __init__", self.identifier
def __del__(self):
print "Member __del__", self.identifier
with open("/home/might/"…

Might
- 305
- 3
- 12
5
votes
2 answers
Python paradigm for "derived fields"/"class attributes from calculations"
I have a class that, let's say, computes a person's insurance risk, and a few other variables are computed during computation. I will need access to the risk and the other variables later.
class InsuranceRiskModel:
self.risk = None
…

atp
- 30,132
- 47
- 125
- 187
5
votes
2 answers
Why can't class attributes be named as reserved words in python?
It seems reserved words can not be used as attributes in python:
$ python
Python 3.6.2 |Continuum Analytics, Inc.| (default, Jul 20 2017, 13:51:32)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help", "copyright", "credits" or "license" for…

Daniel Gonzalez
- 135
- 2
- 9
5
votes
2 answers
Python: How to mock class attribute initializer function
I would like to mock a module-level function used to initialize a class-level (not instance) attribute. Here's a simplified example:
# a.py
def fn():
return 'asdf'
class C:
cls_var = fn()
Here's a unittest attempting to mock…

Steven Colby
- 53
- 1
- 5
5
votes
1 answer
Update Ruby class attributes hash when a property changes
I'm trying to write a Ruby class that works similarly to Rails AactiveRecord model in the way that attributes are handled:
class Person
attr_accessor :name, :age
# init with Person.new(:name => 'John', :age => 30)
def…

sa125
- 28,121
- 38
- 111
- 153
4
votes
2 answers
How do you remove a class that matches a pattern from the class attribute, but retain the other classes?
I want to delete the classes that end with 'blue' from the class attribute on all tags
sample html
This will give…
this is blue text
this is red text

qodeninja
- 10,946
- 30
- 98
- 152
4
votes
1 answer
Class attributes dependent on other class attributes
I want to create a class attribute, that are dependent to another class attribute (and I tell class attribute, not instance attribute). When this class attribute is a string, as in this topic, the proposed solution
class A:
foo = "foo"
bar =…

lg53
- 121
- 7