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How to get the original value of an attribute in Rails
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Before rails 5.1
Appending _was to your attribute will give you the previous value.
For rail...
AngularJS $http, CORS and http authentication
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Cannot change column used in a foreign key constraint
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127
The type and definition of foreign key field and reference must be equal.
This means your forei...
What kind of virtual machine is BEAM (the Erlang VM)?
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edited Jul 20 '16 at 1:29
Ilya Vassilevsky
92766 silver badges1414 bronze badges
answered...
Will writeToFile:atomically: overwrite data?
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?
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How can I filter lines on load in Pandas read_csv function?
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edited Apr 20 '18 at 9:49
Madhup Kumar
533 bronze badges
answered Nov 30 '12 at 21:31
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Objective-C: Extract filename from path string
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edited Feb 8 '19 at 20:43
answered Jul 8 '09 at 16:00
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Getting number of days in a month
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302
You want DateTime.DaysInMonth:
int days = DateTime.DaysInMonth(year, month);
Obviously it var...