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UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
...w). In what scenerio would viewWillAppear be called without being preceded by a call to viewDidLoad?
– dugla
Oct 16 '09 at 19:40
7
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How Pony (ORM) does its tricks?
...Python generator into SQL query in three steps:
Decompiling of generator bytecode and rebuilding generator AST
(abstract syntax tree)
Translation of Python AST into "abstract SQL" -- universal
list-based representation of a SQL query
Converting abstract SQL representation into specific
database-de...
what is the most efficient way of counting occurrences in pandas?
...
I think df['word'].value_counts() should serve. By skipping the groupby machinery, you'll save some time. I'm not sure why count should be much slower than max. Both take some time to avoid missing values. (Compare with size.)
In any case, value_counts has been specifical...
Validate a username and password against Active Directory?
...t a non-existant user. As a result, you may want to call UserPrinciple.FindByIdentity to see if the passed in user ID exists first.
– Chris J
Sep 8 '11 at 15:17
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Disable Rails SQL logging in console
...ute it in the Rails console, etc. check my gem utility_belt if you're on Ruby 1.8 or the Ruby 1.9 port called flyrb
– Giles Bowkett
Sep 5 '12 at 3:57
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Ruby capitalize every word first letter
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split will split on space by default, so you can make it even shorter: 'one TWO three foUR'.split.map(&:capitalize).join(' ')
– Mischa
Jun 13 '13 at 6:53
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Which is faster: multiple single INSERTs or one multiple-row INSERT?
...-optimization.html
The time required for inserting a row is determined by the following factors, where the numbers indicate approximate proportions:
Connecting: (3)
Sending query to server: (2)
Parsing query: (2)
Inserting row: (1 × size of row)
Inserting indexes: (1 × number o...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
...oracle_user\product\12.1.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\app\oracle_user\product\12.1.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC...
AngularJS: disabling all form controls between submit and server response
...n't want to use JQuery (which is evil!!!) and query all elements as array (by class or attribute marker)
The ideas I had so far are:
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Escaping regex string
...c example, search any occurence of the provided string optionally followed by 's', and return the match object.
def simplistic_plural(word, text):
word_or_plural = re.escape(word) + 's?'
return re.match(word_or_plural, text)
...