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Django dynamic model fields
...y constraint, which may be inefficient on some databases.
You will need to select one of the forks, since the official package is no longer maintained and there is no clear leader.
The usage is pretty straightforward:
import eav
from app.models import Patient, Encounter
eav.register(Encounter)
e...
What does Ruby have that Python doesn't, and vice versa?
...thods of your choosing. If this would have a name maybe it would be called selective importing?
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edited Jul 11 '09 at 22:00
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How to execute a MySQL command from a shell script?
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mysql -h <host> -u<user> -p<password> database -e \
"SELECT * FROM blah WHERE foo='bar';"
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Convert Mercurial project to Git [duplicate]
...led hg-git via macports as follows:
sudo port install python27
sudo port select --set python python27
sudo port install py27-hggit
vi ~/.hgrc
.hgrc needs these lines:
[ui]
username = Name Surname <me@mydomain.com>
[extensions]
hgext.bookmarks =
hggit =
I then had success with:
hg pus...
Memcached vs. Redis? [closed]
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Use Redis if
You require selectively deleting/expiring items in the cache. (You need this)
You require the ability to query keys of a particular type. eq. 'blog1:posts:*', 'blog2:categories:xyz:posts:*'. oh yeah! this is very important. Use this to i...
Use of alloc init instead of new
...s here: http://macresearch.org/difference-between-alloc-init-and-new
Some selected ones are:
new doesn't support custom initializers (like initWithString)
alloc-init is more explicit than new
General opinion seems to be that you should use whatever you're comfortable with.
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Determine if variable is defined in Python [duplicate]
...ot much information in the question, so I believe only person asked it can select the best way to handle his case.
– Denis Otkidach
Oct 20 '09 at 7:58
140
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What is the difference between the kernel space and the user space?
...d 2 aren't used?
How is the current ring determined?
The current ring is selected by a combination of:
global descriptor table: a in-memory table of GDT entries, and each entry has a field Privl which encodes the ring.
The LGDT instruction sets the address to the current descriptor table.
See ...
How to update two tables in one statement in SQL Server 2005?
... by GROUP BY, HAVING, or DISTINCT clauses.
TOP is not used anywhere in the select_statement of the view together with the WITH CHECK OPTION clause.
In all honesty, though, you should consider using two different SQL statements within a transaction as per LBushkin's example.
UPDATE: My original ass...
OPTION (RECOMPILE) is Always Faster; Why?
...y estimates for applying both restrictions and a poor execution plan being selected. The fix in this case would be to create a statistics object linking the two columns, which is not an expensive operation.
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