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Rails 3 execute custom sql query without a model
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168
Maybe try this:
ActiveRecord::Base.establish_connection(...)
ActiveRecord::Base.connection.exec...
In Python, how do you convert seconds since epoch to a `datetime` object?
...output as with time.gmtime
>>> datetime.datetime.fromtimestamp(1284286794)
datetime.datetime(2010, 9, 12, 11, 19, 54)
or
>>> datetime.datetime.utcfromtimestamp(1284286794)
datetime.datetime(2010, 9, 12, 10, 19, 54)
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What does $.when.apply($, someArray) do?
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answered Feb 8 '13 at 16:34
Rocket HazmatRocket Hazmat
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How can we programmatically detect which iOS version is device running on? [duplicate]
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684
Best current version, without need to deal with numeric search within NSString is to define mac...
Suppress/ print without b' prefix for bytes in Python 3
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How to do this by default, I mean, is it bad to use utf-8 by default? I don't want to use the .decode('utf-8') everytime I print something.
– Shubham A.
Jan 10 '18 at 14:09
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Where can I find my Azure account name and account key?
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83
If you're referring to a Windows Azure Storage account, the storage account name would be the d...
Does R have an assert statement as in python?
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edited Aug 6 '18 at 18:54
cbare
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answe...
promise already under evaluation: recursive default argument reference or earlier problems?
...on(x, T) {
10 * sin(0.3 * x) * sin(1.3 * x^2) + 0.001 * x^3 + 0.2 * x + 80
}
g <- function(x, T, f. = f) { ## 1. note f.
exp(-f.(x)/T)
}
test<- function(g. = g, T = 1) { ## 2. note g.
g.(1,T)
}
test()
## [1] 8.560335e-37
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Java: PrintStream to String?
...eArrayOutputStream baos = new ByteArrayOutputStream();
final String utf8 = StandardCharsets.UTF_8.name();
try (PrintStream ps = new PrintStream(baos, true, utf8)) {
yourFunction(object, ps);
}
String data = baos.toString(utf8);
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How to add “on delete cascade” constraints?
In PostgreSQL 8 is it possible to add ON DELETE CASCADES to the both foreign keys in the following table without dropping the latter?
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