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Convert all tables to use UTF8MB4 charset #9745

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Convert all tables to use UTF8MB4 charset #9745

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2 changes: 1 addition & 1 deletion config/database.yml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
default: &default
encoding: utf8
encoding: utf8mb4
adapter: mysql2
prepared_statements: true
variables:
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12 changes: 12 additions & 0 deletions db/migrate/20241217115246_convert_text_columns_to_utf8mb4.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
class ConvertTextColumnsToUtf8mb4 < ActiveRecord::Migration[7.1]
def up
# Disable foreign key constraints because foreign keys using strings will prevent conversion
execute "SET foreign_key_checks = 0;"
ActiveRecord::Base.connection.tables.each do |table|
next if table == "schema_migrations"

execute "ALTER TABLE `#{table}` CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"
end
execute "SET foreign_key_checks = 1;"
end
end
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