2017-09-10 17:25:29 +05:30
|
|
|
# This patches ActiveRecord so indexes for binary columns created using the
|
|
|
|
# MySQL adapter apply a length of 20. Otherwise MySQL can't create an index on
|
|
|
|
# binary columns.
|
|
|
|
|
2019-02-15 15:39:39 +05:30
|
|
|
module MysqlSetLengthForBinaryIndexAndIgnorePostgresOptionsForSchema
|
|
|
|
# This method is used in Rails 5 schema loading as t.index
|
|
|
|
def index(column_names, options = {})
|
|
|
|
# Ignore indexes that use opclasses,
|
|
|
|
# also see config/initializers/mysql_ignore_postgresql_options.rb
|
|
|
|
if options[:opclasses]
|
|
|
|
warn "WARNING: index on columns #{column_names} uses unsupported option, skipping."
|
|
|
|
return
|
|
|
|
end
|
|
|
|
|
2018-11-20 20:47:30 +05:30
|
|
|
options[:length] ||= {}
|
2017-09-10 17:25:29 +05:30
|
|
|
Array(column_names).each do |column_name|
|
2019-02-15 15:39:39 +05:30
|
|
|
column = columns.find { |c| c.name == column_name }
|
2017-09-10 17:25:29 +05:30
|
|
|
|
|
|
|
if column&.type == :binary
|
2018-11-20 20:47:30 +05:30
|
|
|
options[:length][column_name] = 20
|
2017-09-10 17:25:29 +05:30
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2019-02-15 15:39:39 +05:30
|
|
|
super(column_names, options)
|
2017-09-10 17:25:29 +05:30
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2019-02-15 15:39:39 +05:30
|
|
|
if defined?(ActiveRecord::ConnectionAdapters::MySQL::TableDefinition)
|
|
|
|
ActiveRecord::ConnectionAdapters::MySQL::TableDefinition.send(:prepend, MysqlSetLengthForBinaryIndexAndIgnorePostgresOptionsForSchema)
|
2018-11-20 20:47:30 +05:30
|
|
|
end
|