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psql: FATAL: Ident authentication failed for user “postgres”
...
You're getting this error because you're failing client authentication. Based on the error message, you probably have the default postgres configuration, which sets client authentication method to "IDENT" for all PostgreSQL connections.
You sho...
Rotate axis text in python matplotlib
...just them.
– EL_DON
Sep 9 '16 at 21:05
In case you have used a locator and formatter, the "other" method might break t...
How do I display an alert dialog on Android?
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The code which David Hedlund has posted gave me the error:
Unable to add window — token null is not valid
If you are getting the same error use the below code. It works!!
runOnUiThread(new Runnable() {
@Override
public void run() {
if (!isFinishing())...
Getting activity from context in android
...xt() and the application tried to cast the App itself, hence giving a cast error, instead of the activity. After switching to 'this', as you answered, it worked.
– dwbrito
Jan 22 '13 at 23:06
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“Undefined reference to” template class constructor [duplicate]
...n the entire compilation process, or we will get the 'undefined reference' error. (This applies to the other methods of cola<T> also.)
Understanding the problem
The problem is caused by the fact that main.cpp and cola.cpp will be compiled separately first. In main.cpp, the compiler will impl...
UML class diagram enum
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They are simply showed like this:
_______________________
| <<enumeration>> |
| DaysOfTheWeek |
|_____________________|
| Sunday |
| Monday |
| Tuesday |
| ... |
|____________________...
Is this object-lifetime-extending-closure a C# compiler bug?
....locals init (
[0] class ConsoleApplication1.Program/Foo/'<>c__DisplayClass1' 'CS$<>8__locals2'
)
IL_0000: newobj instance void ConsoleApplication1.Program/Foo/'<>c__DisplayClass1'::.ctor()
IL_0005: stloc.0
IL_0006: ldloc.0
IL_0007: ldarg.0
IL_000...
Is there a pattern for initializing objects created via a DI container
...more, an Initialize method indicates Temporal Coupling: blog.ploeh.dk/2011/05/24/DesignSmellTemporalCoupling.aspx
– Mark Seemann
Oct 5 '11 at 9:11
2
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How to create a custom string representation for a class object?
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Implement __str__() or __repr__() in the class's metaclass.
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(object):
__metaclass__ = MC
print C
Use __str__ if you mean a readable stringification, use __repr__ fo...
How to check size of a file using Bash?
...a pathname.
– Mikel
Apr 26 '17 at 0:05
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