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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...
How to create multidimensional array
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321
var numeric = [
['input1','input2'],
['input3','input4']
];
numeric[0][0] == 'input1';
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Associativity of “in” in Python?
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123
1 in [] in 'a' is evaluated as (1 in []) and ([] in 'a').
Since the first condition (1 in [])...
How to prevent a background process from being stopped after closing SSH client in Linux
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20 Answers
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Active
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Which ORM should I use for Node.js and MySQL? [closed]
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102
May I suggest Node ORM?
https://github.com/dresende/node-orm2
There's documentation on the Rea...
How to replace part of string by position?
...ar aStringBuilder = new StringBuilder(theString);
aStringBuilder.Remove(3, 2);
aStringBuilder.Insert(3, "ZX");
theString = aStringBuilder.ToString();
An alternative is to use String.Substring, but I think the StringBuilder code gets more readable.
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Remove last character from string. Swift language
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22 Answers
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Active
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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...
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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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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