method
check_int_in_range
v8.1.1 -
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- Class:
ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting
check_int_in_range(value)public
No documentation available.
# File activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb, line 81
def check_int_in_range(value)
if value.to_int > 9223372036854775807 || value.to_int < -9223372036854775808
exception = <<~ERROR
Provided value outside of the range of a signed 64bit integer.
PostgreSQL will treat the column type in question as a numeric.
This may result in a slow sequential scan due to a comparison
being performed between an integer or bigint value and a numeric value.
To allow for this potentially unwanted behavior, set
ActiveRecord.raise_int_wider_than_64bit to false.
ERROR
raise IntegerOutOf64BitRange.new exception
end
end
def quote(value) # :nodoc:
if ActiveRecord.raise_int_wider_than_64bit && value.is_a?(Integer)
check_int_in_range(value)
end
case value
when OID::Xml::Data
"xml '#{quote_string(value.to_s)}'"
when OID::Bit::Data
if value.binary?
"B'#{value}'"
elsif value.hex?
"X'#{value}'"
end
when Numeric
if value.finite?
super
else
"'#{value}'"
end
when OID::Array::Data
quote(encode_array(value))
when Range
quote(encode_range(value))
else
super
end
end
# Quotes strings for use in SQL input.
def quote_string(s) # :nodoc:
with_raw_connection(allow_retry: true, materialize_transactions: false) do |connection|
connection.escape(s)
end
end
def quote_table_name_for_assignment(table, attr)
quote_column_name(attr)
end
# Quotes schema names for use in SQL queries.
def quote_schema_name(schema_name)
quote_column_name(schema_name)
end
# Quote date/time values for use in SQL input.
def quoted_date(value) # :nodoc:
if value.year <= 0
bce_year = format("%04d", -value.year + 1)
super.sub(/^-?\d+/, bce_year) + " BC"
else
super
end
end
def quoted_binary(value) # :nodoc:
"'#{escape_bytea(value.to_s)}'"
end
# `column` may be either an instance of Column or ColumnDefinition.
def quote_default_expression(value, column) # :nodoc:
if value.is_a?(Proc)
value.call
elsif column.type == :uuid && value.is_a?(String) && value.include?("()")
value # Does not quote function default values for UUID columns
elsif column.respond_to?(:array?)
# TODO: Remove fetch_cast_type and the need for connection after we release 8.1.
quote(column.fetch_cast_type(self).serialize(value))
else
super
end
end
def type_cast(value) # :nodoc:
case value
when Type::Binary::Data
# Return a bind param hash with format as binary.
# See https://deveiate.org/code/pg/PG/Connection.html#method-i-exec_prepared-doc
# for more information
{ value: value.to_s, format: 1 }
when OID::Xml::Data, OID::Bit::Data
value.to_s
when OID::Array::Data
encode_array(value)
when Range
encode_range(value)
when Rational
value.to_f
else
super
end
end
# TODO: Make this method private after we release 8.1.
def lookup_cast_type(sql_type) # :nodoc:
super(query_value("SELECT #{quote(sql_type)}::regtype::oid", "SCHEMA").to_i)
end
private
def encode_array(array_data)
encoder = array_data.encoder
values = type_cast_array(array_data.values)
result = encoder.encode(values)
if encoding = determine_encoding_of_strings_in_array(values)
result.force_encoding(encoding)
end
result
end
def encode_range(range)
lower_bound = type_cast_range_value(range.begin)
upper_bound = if date_or_time_range?(range)
# Postgres will convert `[today,]` to `[today,)`, making it exclusive.
# We can use the special timestamp value `infinity` to force inclusion.
# https://www.postgresql.org/docs/current/rangetypes.html#RANGETYPES-INFINITE
range.end.nil? ? "infinity" : type_cast(range.end)
else
type_cast_range_value(range.end)
end
"[#{lower_bound},#{upper_bound}#{range.exclude_end? ? ')' : ']'}"
end
def determine_encoding_of_strings_in_array(value)
case value
when ::Array then determine_encoding_of_strings_in_array(value.first)
when ::String then value.encoding
end
end
def type_cast_array(values)
case values
when ::Array then values.map { |item| type_cast_array(item) }
else type_cast(values)
end
end
def type_cast_range_value(value)
infinity?(value) ? "" : type_cast(value)
end
def infinity?(value)
value.respond_to?(:infinite?) && value.infinite?
end
def date_or_time_range?(range)
[range.begin.class, range.end.class].intersect?([Date, DateTime, Time])
end
end