module ActiveRecord::ConnectionAdapters::Quoting

Public Instance Methods

# 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 6.2.
          MSG
          value = value.id_for_database
        end

        _quote(value)
      end

Quotes the column value to help prevent SQL injection attacks.

quote_column_name(column_name) Show source

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

Quotes the column name. Defaults to no quoting.

quote_string(s) Show source

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

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

quote_table_name(table_name) Show source

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 71
def quote_table_name(table_name)
  quote_column_name(table_name)
end

Quotes the table name. Defaults to column name quoting.

quote_table_name_for_assignment(table, attr) Show source

# 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

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).

quoted_date(value) Show source

# 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

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

quoted_false() Show source

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 104
def quoted_false
  "FALSE"
end

quoted_true() Show source

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 96
def quoted_true
  "TRUE"
end

type_cast(value, column = nil) Show source

# 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 6.2.
          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 6.2.
          MSG
          type = lookup_cast_type_from_column(column)
          value = type.serialize(value)
        end

        _type_cast(value)
      end

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.

unquoted_false() Show source

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 108
def unquoted_false
  false
end

unquoted_true() Show source

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