Methods

Instance Public methods

quote(value)

Quotes the column value to help prevent SQL injection attacks.

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 11
def quote(value)
  value = id_value_for_database(value) if value.is_a?(Base)

  if value.respond_to?(:value_for_database)
    value = value.value_for_database
  end

  _quote(value)
end

quote_column_name(column_name)

Quotes the column name. Defaults to no quoting.

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 67
def quote_column_name(column_name)
  column_name.to_s
end

quote_string(s)

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

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 62
def quote_string(s)
  s.gsub('\\'.freeze, '\&\&'.freeze).gsub("'".freeze, "''".freeze) # ' (for ruby-mode)
end

quote_table_name(table_name)

Quotes the table name. Defaults to column name quoting.

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 72
def quote_table_name(table_name)
  quote_column_name(table_name)
end

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: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 84
def quote_table_name_for_assignment(table, attr)
  quote_table_name("#{table}.#{attr}")
end

quoted_date(value)

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

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 115
def quoted_date(value)
  if value.acts_like?(:time)
    zone_conversion_method = ActiveRecord::Base.default_timezone == :utc ? :getutc : :getlocal

    if value.respond_to?(zone_conversion_method)
      value = value.send(zone_conversion_method)
    end
  end

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

quoted_false()

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 105
def quoted_false
  "FALSE".freeze
end

quoted_true()

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 97
def quoted_true
  "TRUE".freeze
end

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: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 24
def type_cast(value, column = nil)
  value = id_value_for_database(value) if value.is_a?(Base)

  if column
    value = type_cast_from_column(column, value)
  end

  _type_cast(value)
rescue TypeError
  to_type = column ? " to #{column.type}" : ""
  raise TypeError, "can't cast #{value.class}#{to_type}"
end

unquoted_false()

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 109
def unquoted_false
  false
end

unquoted_true()

Source: 

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 101
def unquoted_true
  true
end