module ActiveRecord::ConnectionAdapters::Quoting
Public Instance Methods
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 67 def fetch_type_metadata(sql_type) cast_type = lookup_cast_type(sql_type) SqlTypeMetadata.new( sql_type: sql_type, type: cast_type.type, limit: cast_type.limit, precision: cast_type.precision, scale: cast_type.scale, ) end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 9 def quote(value, column = nil) # records are quoted as their primary key return value.quoted_id if value.respond_to?(:quoted_id) if column ActiveSupport::Deprecation.warn(" Passing a column to `quote` has been deprecated. It is only used for type casting, which should be handled elsewhere. See https://github.com/rails/arel/commit/6160bfbda1d1781c3b08a33ec4955f170e95be11 for more information. ".squish) value = type_cast_from_column(column, value) end _quote(value) end
Quotes the column value to help prevent SQL injection attacks.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 85 def quote_column_name(column_name) column_name.to_s end
Quotes the column name. Defaults to no quoting.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 80 def quote_string(s) s.gsub('\'.freeze, '\&\&'.freeze).gsub("'".freeze, "''".freeze) # ' (for ruby-mode) end
Quotes a string, escaping any ' (single quote) and \ (backslash) characters.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 90 def quote_table_name(table_name) quote_column_name(table_name) end
Quotes the table name. Defaults to column name quoting.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 102 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).
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 133 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
Quote date/time values for use in SQL input. Includes microseconds if the value is a Time responding to usec.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 123 def quoted_false "'f'".freeze end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 115 def quoted_true "'t'".freeze end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 29 def type_cast(value, column = nil) if value.respond_to?(:quoted_id) && value.respond_to?(:id) return value.id end 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
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.
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 127 def unquoted_false 'f'.freeze end
# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 119 def unquoted_true 't'.freeze end
© 2004–2018 David Heinemeier Hansson
Licensed under the MIT License.