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Parsing domain from a URL
...
Check out parse_url():
$url = 'http://google.com/dhasjkdas/sadsdds/sdda/sdads.html';
$parse = parse_url($url);
echo $parse['host']; // prints 'google.com'
parse_url doesn't handle really badly mangled urls very well, but is fine if you g...
Good ways to sort a queryset? - Django
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What about
import operator
auths = Author.objects.order_by('-score')[:30]
ordered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#ord...
Split list into multiple lists with fixed number of elements
...st[List[X]] =
if (xs.size <= n) xs :: Nil
else (xs.splitAt(n)._1) :: split(n,xs.splitAt(n)._2)
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RichTextBox (WPF) does not have string property “Text”
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How about just doing the following:
_richTextBox.SelectAll();
string myText = _richTextBox.Selection.Text;
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How do I delete from multiple tables using INNER JOIN in SQL server
...ete from first detail table using join syntax
DELETE d
FROM DetailTable_1 D
INNER JOIN #DeleteIds X
ON D.MasterTableId = X.Id
-- delete from second detail table using IN clause
DELETE FROM DetailTable_2
WHERE MasterTableId IN (
SELECT X.Id
FROM #DeleteIds X
)
-- and...
When should I use uuid.uuid1() vs. uuid.uuid4() in python?
...to note when using uuid1, if you use the default call (without giving clock_seq parameter) you have a chance of running into collisions: you have only 14 bit of randomness (generating 18 entries within 100ns gives you roughly 1% chance of a collision see birthday paradox/attack). The problem will ne...
Time complexity of Sieve of Eratosthenes algorithm
...cause we need an array of n elements in any case?
– a_123
Mar 25 '16 at 21:35
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How do I determine file encoding in OS X?
...enca and you have to specify language but none works, so: enca FILENAME -L __
– Shane
Jul 30 '18 at 20:27
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How to elegantly deal with timezones
...Time DateCreated
{
get { return CRM.Global.ToLocalTime(_DateCreated); }
set { _DateCreated = value.ToUniversalTime(); }
}
private DateTime _DateCreated { get; set; }
...
}
2 - In a global helper we make our custom function "ToLocalTime":
...
Select random row from a sqlite table
...he rows of the original table sorted in random order :
create table random_foo(foo_id);
Then, periodicalliy, re-fill the table random_foo
delete from random_foo;
insert into random_foo select id from foo;
And to select a random row, you can use my first method (there are no holes here). Of cou...