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Django migration strategy for renaming a model and relationship fields
...ass Foo(models.Model):
name = models.CharField(unique=True, max_length=32)
description = models.TextField(null=True, blank=True)
And in myotherapp:
class AnotherModel(models.Model):
foo = models.ForeignKey(Foo)
is_awesome = models.BooleanField()
class YetAnotherModel(models.Mode...
Why did Rails4 drop support for “assets” group in the Gemfile
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32
Wasn't it also saving memory? Now all gems, even those not needed in "production" (only in precompile), are loaded and thus rails consumes ...
makefile:4: *** missing separator. Stop
This is my makefile:
10 Answers
10
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SVG Positioning
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answered Feb 18 '09 at 14:32
codedreadcodedread
1,13199 silver badges1212 bronze badges
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Remove all whitespace in a string
I want to eliminate all the whitespace from a string, on both ends, and in between words.
10 Answers
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How is null + true a string?
...me.Now); // String
var b = (null + 1); // System.Nullable<Int32> | same with System.Single, System.Double, System.Decimal, System.TimeSpan etc
var b = (null + new Object()); // String | same with any ref type
Crazy?? No, there must be a reason behind it.
Someone call Eric Lippert...
How do you find the row count for all your tables in Postgres
...vy activity, but is generally a good estimate:
SELECT schemaname,relname,n_live_tup
FROM pg_stat_user_tables
ORDER BY n_live_tup DESC;
That can also show you how many rows are dead, which is itself an interesting number to monitor.
The third way is to note that the system ANALYZE command, ...
Set 4 Space Indent in Emacs in Text Mode
...an one, they won't work right.
'(tab-stop-list (quote (4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100 104 108 112 116 120))))
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android get real path by Uri.getPath()
... Thanks.
– Javatar
Nov 27 '16 at 14:32
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How can I use a DLL file from Python?
...ctypes
# Load 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,
...