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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...and rename the model declaration file manually.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_ta...
jQuery append() vs appendChild()
...udio Redi
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How to read a single char from the console in Java (as the user types it)?
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Chris W. ReaChris W. Rea
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git switch branch without discarding local changes
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answered Feb 27 '14 at 23:08
torektorek
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What is the recommended batch size for SqlBulkCopy?
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Matthew Haugen
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answered Jul 24 '09 at 21:14
AlricAlric
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Using headers with the Python requests library's get method
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edited Mar 24 at 12:31
Martijn Pieters♦
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How do I use a file grep comparison inside a bash if/else statement?
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4 Answers
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In Java, what is the best way to determine the size of an object?
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470
You can use the java.lang.instrument package
Compile and put this class in a JAR:
import jav...