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Rails: Default sort order for a rails model?
...eRecord::Base
default_scope { order(created_at: :desc) }
end
For Rails 2.3, 3, you need this instead:
default_scope order('created_at DESC')
For Rails 2.x:
default_scope :order => 'created_at DESC'
Where created_at is the field you want the default sorting to be done on.
Note: ASC is...
Associativity of “in” in Python?
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1 in [] in 'a' is evaluated as (1 in []) and ([] in 'a').
Since the first condition (1 in [])...
Inserting HTML elements with JavaScript
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124
Instead of directly messing with innerHTML it might be better to create a fragment and then ins...
Different ways of clearing lists
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Clearing a list in place will affect all other references of the same list.
For example, this m...
Inverse dictionary lookup in Python
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answered Apr 2 '10 at 19:21
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
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Concatenating two one-dimensional NumPy arrays
...separate arguments.
From the NumPy documentation:
numpy.concatenate((a1, a2, ...), axis=0)
Join a sequence of arrays together.
It was trying to interpret your b as the axis parameter, which is why it complained it couldn't convert it into a scalar.
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How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
I'm getting a datetime string in a format like "2009-05-28T16:15:00" (this is ISO 8601, I believe). One hackish option seems to be to parse the string using time.strptime and passing the first six elements of the tuple into the datetime constructor, like:
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Rounding a double to turn it into an int (java)
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What is the return type of the round() method in the snippet?
If this is the Math.round() met...
cannot load such file — bundler/setup (LoadError)
I'm setting Rails 4 application with Ruby 2.0, but I'm getting "Web application could not be started" and get this trace:
1...