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How to set a Django model field's default value to a function call / callable (e.g., a date relative
...ult values are irrelevant:
from datetime import datetime, timedelta
class MyModel(models.Model):
# default to 1 day from now
my_date = models.DateTimeField(default=datetime.now() + timedelta(days=1))
This last line is not defining a function; it is invoking a function to create a field in the...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
I'm working on getting my database to talk to my Java programs.
38 Answers
38
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Android Camera Preview Stretched
I've been working on making my custom camera activity on Android, but when rotating the camera, the aspect ratio of the surface view gets messed up.
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How to achieve function overloading in C?
...y forbid variable arguments lists. I try to stick by MISRA pretty close in my world.
– Nick
Feb 5 '15 at 17:50
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When should I use Lazy?
...ld you please expand on "and the cost of constructing is non-trivial"? In my case I have 19 properties in my class and in most cases only 2 or 3 will ever need to be looked at. Therefore I am considering implementing each property using Lazy<T>. However, to create each property I am doing a ...
Visual Studio 2013 IntelliSense stops working for ASP.NET MVC5 Controllers
I am facing a weird problem in my Visual Studio 2013 ASP.NET MVC 5 project. All of a sudden, the IntelliSense in the Controller classes of the MVC 5 project are not working at all.
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Are there constants in JavaScript?
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Since ES2015, JavaScript has a notion of const:
const MY_CONSTANT = "some-value";
This will work in pretty much all browsers except IE 8, 9 and 10. Some may also need strict mode enabled.
You can use var with conventions like ALL_CAPS to show that certain values should not be...
Location Services not working in iOS 8
My app that worked fine on iOS 7 doesn't work with the iOS 8 SDK.
26 Answers
26
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Having issue with multiple controllers of the same name in my project
I am running into the following error with my ASP.NET MVC 3 project:
11 Answers
11
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White space showing up on right side of page when background image should extend full length of page
...'s 'row' class was giving a {margin-right:-15px} which was causing this on my page.
– JosephK
Aug 1 '14 at 16:58
2
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