Created
June 22, 2015 09:20
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Migration to convert the DB to UTF8
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class ConvertDbToUtf8 < ActiveRecord::Migration | |
def self.up | |
if Rails.env.production? | |
db_config = ActiveRecord::Base.connection.instance_values["config"] | |
db_name = db_config[:database] | |
db_user = db_config[:username] | |
db_pass = db_config[:password] || '' | |
latin1_dump = 'latin1_dump.sql' | |
utf8_dump = 'utf8_dump.sql' | |
print "Dumping database... " | |
system "mysqldump --user=#{db_user} --password='#{db_pass}' --add-drop-table --default-character-set=latin1 --insert-ignore --skip-set-charset #{db_name} > #{latin1_dump}" | |
puts "done" | |
print "Converting dump to UTF8... " | |
system "iconv -f ISO-8859-1 -t UTF-8 #{latin1_dump} | sed 's/latin1/utf8/' > #{utf8_dump}" | |
puts "done" | |
print "Recreating database..." | |
system "mysql --user=#{db_user} --password='#{db_pass}' --execute=\"DROP DATABASE #{db_name};\"" | |
system "mysql --user=#{db_user} --password='#{db_pass}' --execute=\"CREATE DATABASE #{db_name} CHARACTER SET utf8 COLLATE utf8_unicode_ci;\"" | |
puts "done" | |
print "Importing UTF8 dump..." | |
system "mysql --user=#{db_user} --password='#{db_pass}' --default-character-set=utf8 #{db_name} < #{utf8_dump}" | |
puts "done" | |
puts " *** don't forget to delete temp files #{latin1_dump} and #{utf8_dump}" | |
end | |
end | |
def self.down | |
end | |
end |
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