module ActiveRecord::ConnectionAdapters::Quoting
def column_name_matcher # :nodoc:
def column_name_matcher # :nodoc: COLUMN_NAME end
def column_name_with_order_matcher # :nodoc:
def column_name_with_order_matcher # :nodoc: COLUMN_NAME_WITH_ORDER end
def lookup_cast_type(sql_type)
def lookup_cast_type(sql_type) type_map.lookup(sql_type) end
def lookup_cast_type_from_column(column) # :nodoc:
should have been provided before reaching the connection adapter.
(varchar vs binary) for example. The type used to get this primitive
represent the type doesn't sufficiently reflect the differences
In almost all cases, the sql type should only be used to change quoting behavior, when the primitive to
AttributeMethods::Serialization::ClassMethods#serialize, +time_zone_aware_attributes+).
Attributes::ClassMethods#attribute) or implicitly (via
provided a custom type on the class level either explicitly (via
wrong. The column does not have sufficient type information if the user
If you are having to call this function, you are likely doing something
def lookup_cast_type_from_column(column) # :nodoc: lookup_cast_type(column.sql_type) end
def quote(value)
Quotes the column value to help prevent
def quote(value) case value when String, Symbol, ActiveSupport::Multibyte::Chars "'#{quote_string(value.to_s)}'" when true then quoted_true when false then quoted_false when nil then "NULL" # BigDecimals need to be put in a non-normalized form and quoted. when BigDecimal then value.to_s("F") when Numeric, ActiveSupport::Duration then value.to_s when Type::Binary::Data then quoted_binary(value) when Type::Time::Value then "'#{quoted_time(value)}'" when Date, Time then "'#{quoted_date(value)}'" when Class then "'#{value}'" else raise TypeError, "can't quote #{value.class.name}" end end
def quote_bound_value(value)
MySQL might perform dangerous castings when comparing a string to a number,
Quote a value to be used as a bound parameter of unknown type. For example,
def quote_bound_value(value) quote(value) end
def quote_column_name(column_name)
def quote_column_name(column_name) column_name.to_s end
def quote_default_expression(value, column) # :nodoc:
def quote_default_expression(value, column) # :nodoc: if value.is_a?(Proc) value.call else value = lookup_cast_type(column.sql_type).serialize(value) quote(value) end end
def quote_string(s)
Quotes a string, escaping any ' (single quote) and \ (backslash)
def quote_string(s) s.gsub("\\", '\&\&').gsub("'", "''") # ' (for ruby-mode) end
def quote_table_name(table_name)
def quote_table_name(table_name) quote_column_name(table_name) end
def quote_table_name_for_assignment(table, attr)
We override this in the sqlite3 and postgresql adapters to use only
resolve ambiguity.
This works for mysql2 where table.column can be used to
table quoting.
Override to return the quoted table name for assignment. Defaults to
def quote_table_name_for_assignment(table, attr) quote_table_name("#{table}.#{attr}") end
def quoted_binary(value) # :nodoc:
def quoted_binary(value) # :nodoc: "'#{quote_string(value.to_s)}'" end
def quoted_date(value)
Quote date/time values for use in SQL input. Includes microseconds
def quoted_date(value) if value.acts_like?(:time) if ActiveRecord.default_timezone == :utc value = value.getutc if !value.utc? else value = value.getlocal end end result = value.to_fs(:db) if value.respond_to?(:usec) && value.usec > 0 result << "." << sprintf("%06d", value.usec) else result end end
def quoted_false
def quoted_false "FALSE" end
def quoted_time(value) # :nodoc:
def quoted_time(value) # :nodoc: value = value.change(year: 2000, month: 1, day: 1) quoted_date(value).sub(/\A\d\d\d\d-\d\d-\d\d /, "") end
def quoted_true
def quoted_true "TRUE" end
def sanitize_as_sql_comment(value) # :nodoc:
def sanitize_as_sql_comment(value) # :nodoc: # Sanitize a string to appear within a SQL comment # For compatibility, this also surrounding "/*+", "/*", and "*/" # charcacters, possibly with single surrounding space. # Then follows that by replacing any internal "*/" or "/ *" with # "* /" or "/ *" comment = value.to_s.dup comment.gsub!(%r{\A\s*/\*\+?\s?|\s?\*/\s*\Z}, "") comment.gsub!("*/", "* /") comment.gsub!("/*", "/ *") comment end
def type_cast(value)
SQLite does not understand dates, so this method will convert a Date
Cast a +value+ to a type that the database understands. For example,
def type_cast(value) case value when Symbol, ActiveSupport::Multibyte::Chars, Type::Binary::Data value.to_s when true then unquoted_true when false then unquoted_false # BigDecimals need to be put in a non-normalized form and quoted. when BigDecimal then value.to_s("F") when nil, Numeric, String then value when Type::Time::Value then quoted_time(value) when Date, Time then quoted_date(value) else raise TypeError, "can't cast #{value.class.name}" end end
def type_casted_binds(binds)
def type_casted_binds(binds) binds.map do |value| if ActiveModel::Attribute === value type_cast(value.value_for_database) else type_cast(value) end end end
def unquoted_false
def unquoted_false false end
def unquoted_true
def unquoted_true true end