File abstract_mysql_adapter.rb has 770 lines of code (exceeds 250 allowed). Consider refactoring.

Open

require "active_record/connection_adapters/abstract_adapter"
require "active_record/connection_adapters/statement_pool"
require "active_record/connection_adapters/mysql/column"
require "active_record/connection_adapters/mysql/database_statements"
require "active_record/connection_adapters/mysql/explain_pretty_printer"

Class AbstractMysqlAdapter has 94 methods (exceeds 20 allowed). Consider refactoring.

Open

    class AbstractMysqlAdapter < AbstractAdapter
      include MySQL::DatabaseStatements
      include MySQL::Quoting
      include MySQL::SchemaStatements

Method build_insert_sql has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

Open

      def build_insert_sql(insert) # :nodoc:
        no_op_column = quote_column_name(insert.keys.first)

        # MySQL 8.0.19 replaces `VALUES(<expression>)` clauses with row and column alias names, see https://dev.mysql.com/worklog/task/?id=6312 .
        # then MySQL 8.0.20 deprecates the `VALUES(<expression>)` see https://dev.mysql.com/worklog/task/?id=13325 .

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Method configure_connection has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

Open

        def configure_connection
          super
          variables = @config.fetch(:variables, {}).stringify_keys

          # Increase timeout so the server doesn't disconnect us.

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Method translate_exception has 40 lines of code (exceeds 25 allowed). Consider refactoring.

Open

        def translate_exception(exception, message:, sql:, binds:)
          case error_number(exception)
          when nil
            if exception.message.match?(/MySQL client is not connected/i)
              ConnectionNotEstablished.new(exception, connection_pool: @pool)

Method foreign_keys has 36 lines of code (exceeds 25 allowed). Consider refactoring.

Open

      def foreign_keys(table_name)
        raise ArgumentError unless table_name.present?

        scope = quoted_scope(table_name)

Method build_change_column_definition has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

      def build_change_column_definition(table_name, column_name, type, **options) # :nodoc:
        column = column_for(table_name, column_name)
        type ||= column.sql_type

        unless options.key?(:default)

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Method check_constraints has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

      def check_constraints(table_name)
        if supports_check_constraints?
          scope = quoted_scope(table_name)

          sql = <<~SQL

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Method configure_connection has 32 lines of code (exceeds 25 allowed). Consider refactoring.

Open

        def configure_connection
          super
          variables = @config.fetch(:variables, {}).stringify_keys

          # Increase timeout so the server doesn't disconnect us.

Method build_insert_sql has 31 lines of code (exceeds 25 allowed). Consider refactoring.

Open

      def build_insert_sql(insert) # :nodoc:
        no_op_column = quote_column_name(insert.keys.first)

        # MySQL 8.0.19 replaces `VALUES(<expression>)` clauses with row and column alias names, see https://dev.mysql.com/worklog/task/?id=6312 .
        # then MySQL 8.0.20 deprecates the `VALUES(<expression>)` see https://dev.mysql.com/worklog/task/?id=13325 .

Method check_constraints has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

      def check_constraints(table_name)
        if supports_check_constraints?
          scope = quoted_scope(table_name)

          sql = <<~SQL

Method table_options has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

      def table_options(table_name) # :nodoc:
        create_table_info = create_table_info(table_name)

        # strip create_definitions and partition_options
        # Be aware that `create_table_info` might not include any table options due to `NO_TABLE_OPTIONS` sql mode.

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Method translate_exception has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

        def translate_exception(exception, message:, sql:, binds:)
          case error_number(exception)
          when nil
            if exception.message.match?(/MySQL client is not connected/i)
              ConnectionNotEstablished.new(exception, connection_pool: @pool)

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Method dbconsole has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

        def dbconsole(config, options = {})
          mysql_config = config.configuration_hash

          args = {
            host: "--host",

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Method handle_warnings has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

Open

        def handle_warnings(sql)
          return if ActiveRecord.db_warnings_action.nil? || @raw_connection.warning_count == 0

          @affected_rows_before_warnings = @raw_connection.affected_rows
          warning_count = @raw_connection.warning_count

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