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Change a column type from Date to DateTime during ROR migration
..._date_format_in_my_table
Then in your migration file:
For Rails >= 3.2:
class ChangeDateFormatInMyTable < ActiveRecord::Migration
def up
change_column :my_table, :my_column, :datetime
end
def down
change_column :my_table, :my_column, :date
end
end
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What should main() return in C and C++?
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edited Nov 23 '19 at 9:21
Community♦
111 silver badge
answered Oct 15 '08 at 12:16
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How do I change the figure size with subplots?
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2 Answers
2
Active
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How do I read image data from a URL in Python?
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294
In Python3 the StringIO and cStringIO modules are gone.
In Python3 you should use:
from PIL ...
Pretty Printing a pandas dataframe
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182
I've just found a great tool for that need, it is called tabulate.
It prints tabular data and w...
Calling a static method on a generic type parameter
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25
But what if you masked your static method in a child class? public class SomeChildClass : SomeBaseClass{ public new static StaticMetho...
jQuery $(“#radioButton”).change(…) not firing during de-selection
...ution I used is to bind the change event to every radio button:
$("#r1, #r2, #r3").change(function () {
Or you could give all the radio buttons the same name:
$("input[name=someRadioGroup]:radio").change(function () {
Here's a working jsfiddle example (updated from Chris Porter's comment.)
Pe...
not:first-child selector
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edited Feb 24 '16 at 13:53
Tieme
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Join an Array in Objective-C
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275
NSArray *array1 = [NSArray arrayWithObjects:@"1", @"2", @"3", nil];
NSString *joinedString = ...