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How do you implement a re-try-catch?
...ans somehow that it will help our system to be more robust: try to recover from an unexpected event.
25 Answers
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startsWith() and endsWith() functions in PHP
How can I write two functions that would take a string and return if it starts with the specified character/string or ends with it?
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Break when a value changes using the Visual Studio debugger
...rarily convert a field to a property and put a breakpoint on the getter or setter.
– Jon Davis
Nov 5 '14 at 23:14
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How do I add tab completion to the Python shell?
...ngo shell,you should import the django env,like this
import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "testweb.settings")
Trust me,this is the best way to you!!!
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PHP PDO returning single row
...ly) result entry from the database reponse.
You can do more optimizing by setting the fetching type, see http://www.php.net/manual/de/pdostatement.fetch.php. If you access it only via column names you need to numbered array.
Be aware of the ORDER clause. Use ORDER or WHERE to get the needed row. O...
How can I use a DLL file from Python?
...ad DLL into memory.
hllDll = ctypes.WinDLL ("c:\\PComm\\ehlapi32.dll")
# Set up prototype and parameters for the desired function call.
# HLLAPI
hllApiProto = ctypes.WINFUNCTYPE (
ctypes.c_int, # Return type.
ctypes.c_void_p, # Parameters 1 ...
ctypes.c_void_p,
ctypes.c_voi...
MySQL - UPDATE query based on SELECT Query
...e join syntax:
UPDATE tableA a
INNER JOIN tableB b ON a.name_a = b.name_b
SET validation_check = if(start_dts > end_dts, 'VALID', '')
-- where clause can go here
ANSI SQL syntax:
UPDATE tableA SET validation_check =
(SELECT if(start_DTS > end_DTS, 'VALID', '') AS validation_check
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How to add multiple objects to ManyToMany relationship at once in Django ?
...
To add on, If you want to add them from a queryset
Example
# Returns a queryset
permissions = Permission.objects.all()
# Add the results to the many to many field (notice the *)
group = MyGroup.objects.get(name='test')
group.permissions.add(*permissions)
From: Ins...
What does $.when.apply($, someArray) do?
... calls $.when with each element as a parameter (and makes sure the this is set to jQuery/$), so then it all works :-)
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How to get a specific version of a file in Mercurial?
... editor after snippets, if snippets enabled
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