mismatched_foreign_key

# File activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb, line 806
        def mismatched_foreign_key(message)
          match = /
            (?:CREATE|ALTER)\s+TABLE\s*(?:`?\w+`?\.)?`?(?<table>\w+)`?.+?
            FOREIGN\s+KEY\s*\(`?(?<foreign_key>\w+)`?\)\s*
            REFERENCES\s*(`?(?<target_table>\w+)`?)\s*\(`?(?<primary_key>\w+)`?\)
          /mi.match(message)

          options = {
            message: message,
          }

          if match
            options[:table] = match[:table]
            options[:foreign_key] = match[:foreign_key]
            options[:target_table] = match[:target_table]
            options[:primary_key] = match[:primary_key]
            options[:primary_key_column] = column_for(match[:target_table], match[:primary_key])
          end

          MismatchedForeignKey.new(options)
        end