Methods

Instance Public methods

quote(value)

Quotes the column value to help prevent SQL injection attacks.

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 11
      def quote(value)
        if value.is_a?(Base)
          ActiveSupport::Deprecation.warn(<<~MSG)
            Passing an Active Record object to `quote` directly is deprecated
            and will be no longer quoted as id value in Rails 7.0.
          MSG
          value = value.id_for_database
        end

        _quote(value)
      end
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quote_column_name(column_name)

Quotes the column name. Defaults to no quoting.

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 66
      def quote_column_name(column_name)
        column_name.to_s
      end
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quote_string(s)

Quotes a string, escaping any ' (single quote) and \ (backslash) characters.

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 61
      def quote_string(s)
        s.gsub('\\', '\&\&').gsub("'", "''") # ' (for ruby-mode)
      end
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quote_table_name(table_name)

Quotes the table name. Defaults to column name quoting.

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 71
      def quote_table_name(table_name)
        quote_column_name(table_name)
      end
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quote_table_name_for_assignment(table, attr)

Override to return the quoted table name for assignment. Defaults to table quoting.

This works for mysql2 where table.column can be used to resolve ambiguity.

We override this in the sqlite3 and postgresql adapters to use only the column name (as per syntax requirements).

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 83
      def quote_table_name_for_assignment(table, attr)
        quote_table_name("#{table}.#{attr}")
      end
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quoted_date(value)

Quote date/time values for use in SQL input. Includes microseconds if the value is a Time responding to usec.

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 114
      def quoted_date(value)
        if value.acts_like?(:time)
          if ActiveRecord::Base.default_timezone == :utc
            value = value.getutc if value.respond_to?(:getutc) && !value.utc?
          else
            value = value.getlocal if value.respond_to?(:getlocal)
          end
        end

        result = value.to_s(:db)
        if value.respond_to?(:usec) && value.usec > 0
          result << "." << sprintf("%06d", value.usec)
        else
          result
        end
      end
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quoted_false()

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 104
      def quoted_false
        "FALSE"
      end
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quoted_true()

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 96
      def quoted_true
        "TRUE"
      end
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type_cast(value, column = nil)

Cast a value to a type that the database understands. For example, SQLite does not understand dates, so this method will convert a Date to a String.

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 26
      def type_cast(value, column = nil)
        if value.is_a?(Base)
          ActiveSupport::Deprecation.warn(<<~MSG)
            Passing an Active Record object to `type_cast` directly is deprecated
            and will be no longer type casted as id value in Rails 7.0.
          MSG
          value = value.id_for_database
        end

        if column
          ActiveSupport::Deprecation.warn(<<~MSG)
            Passing a column to `type_cast` is deprecated and will be removed in Rails 7.0.
          MSG
          type = lookup_cast_type_from_column(column)
          value = type.serialize(value)
        end

        _type_cast(value)
      end
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unquoted_false()

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 108
      def unquoted_false
        false
      end
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unquoted_true()

📝 Source code 
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 100
      def unquoted_true
        true
      end
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