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Can you get DB username, pw, database name in Rails?
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From within rails you can create a configuration object and obtain the necessary information from it:
config = Rails.configuration.database_configuration
host = config[Rails.env]["host"]
database = config[Rails.env]["database"]
username = config[Rails.env]["username"]
passw...
How do I format a string using a dictionary in python-3.x?
..."]} {geopoint["longitude"]}')
41.123 71.091
Note the outer single quotes and inner double quotes (you could also do it the other way around).
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Cordova 3.5.0 Install Error- Please Install Android Target 19
I try to get this working and it's driving me nuts:
6 Answers
6
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python tuple to dict
...had to try it with zip dict(zip(*zip(*t)[::-1])). This is slower, uglier and using way more memory..likely 3x.
– kevpie
Apr 28 '11 at 1:35
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Why can't we have static method in a (non-static) inner class?
... I know an inner class is associated with an instance of its outer class and I know that it's kinda useless that we become able to declare static members within an inner class but I am still asking why not an inner class can declare static members?
– Kareem
S...
Get a list of all the files in a directory (recursive)
...'m trying to get (not print, that's easy) the list of files in a directory and its sub directories.
4 Answers
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What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are l...
Why do Java webapps use .do extension? Where did it come from?
...Ls that will be
processed by the controller servlet --
prefix matching and extension
matching. An appropriate mapping entry
for each approach will be described
below.
Prefix matching means that you want
all URLs that start (after the context
path part) with a particular value to
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python pandas remove duplicate columns
... solution to the problem. This applies if some column names are duplicated and you wish to remove them:
df = df.loc[:,~df.columns.duplicated()]
How it works:
Suppose the columns of the data frame are ['alpha','beta','alpha']
df.columns.duplicated() returns a boolean array: a True or False for e...
Best way to merge two maps and sum the values of same key?
I want to merge them, and sum the values of same keys. So the result will be:
15 Answers
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