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Difference between Django's annotate and aggregate methods?
...rage_price': 34.35}
Returns a dictionary containing the average price of all books in the queryset.
Annotation
>>> q = Book.objects.annotate(num_authors=Count('authors'))
>>> q[0].num_authors
2
>>> q[1].num_authors
1
q is the queryset of books, but each book has been...
How to inspect the return value of a function in GDB?
...ot used.
The exceptions to this are functions returning types larger than 32 bits, specifically 64-bit integers (long long), doubles, and structs or classes.
The other exception is if you're not running on an Intel architecture. In that case, you'll have to figure out which register is used, if an...
Mercurial .hgignore for Visual Studio 2010 projects
...ut an entry that's already there.. Feel free to edit the list and yes I totally agree, it should be added
– Shady M. Najib
Apr 14 '11 at 12:07
2
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How do I make a column unique and index it in a Ruby on Rails migration?
I would like to make a column unique in Ruby on Rails migration script. What is the best way to do it? Also is there a way to index a column in a table?
...
How to debug heap corruption errors?
...nctionality was in Application Verifier.
Electric Fence (aka "efence"), dmalloc, valgrind, and so forth are all worth mentioning, but most of these are much easier to get running under *nix than Windows. Valgrind is ridiculously flexible: I've debugged large server software with many heap issues u...
Intellij IDEA generate for-each/for keyboard shortcut
...
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Java 8 stream's .min() and .max(): why does this compile?
...bout.
So the question is, of course, why is Integer::max accepted? After all it's not a comparator!
The answer is in the way that the new lambda functionality works in Java 8. It relies on a concept which is informally known as "single abstract method" interfaces, or "SAM" interfaces. The idea ...
.NET 4.0 has a new GAC, why?
... Global Assembly Cache (GAC), you will have to manage each of them individually.
In .NET Framework 4.0, the GAC went through a few changes. The GAC was split into two, one for each CLR.
The CLR version used for both .NET Framework 2.0 and .NET Framework 3.5 is CLR 2.0. There was no need in the prev...
How can I find the number of days between two Date objects in Ruby?
...
all of these steered me to the correct result, but I wound up doing
DateTime.now.mjd - DateTime.parse("01-01-1995").mjd
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How to find controls in a repeater header or footer
I was wondering how one would find the controls in the HeaderTemplate or FooterTemplate of an Asp.Net Repeater control.
8 A...