Module | Sequel::SQL::CastMethods |
In: |
lib/sequel/sql.rb
|
Cast the reciever to the given SQL type. You can specify a ruby class as a type, and it is handled similarly to using a database independent type in the schema methods.
Sequel.function(:func).cast(:integer) # CAST(func() AS integer) Sequel.function(:func).cast(String) # CAST(func() AS varchar(255))
# File lib/sequel/sql.rb, line 671 671: def cast(sql_type) 672: Cast.new(self, sql_type) 673: end
Cast the reciever to the given SQL type (or the database‘s default Integer type if none given), and return the result as a NumericExpression, so you can use the bitwise operators on the result.
Sequel.function(:func).cast_numeric # CAST(func() AS integer) Sequel.function(:func).cast_numeric(Float) # CAST(func() AS double precision)
# File lib/sequel/sql.rb, line 681 681: def cast_numeric(sql_type = nil) 682: Cast.new(self, sql_type || Integer).sql_number 683: end
Cast the reciever to the given SQL type (or the database‘s default String type if none given), and return the result as a StringExpression, so you can use + directly on the result for SQL string concatenation.
Sequel.function(:func).cast_string # CAST(func() AS varchar(255)) Sequel.function(:func).cast_string(:text) # CAST(func() AS text)
# File lib/sequel/sql.rb, line 691 691: def cast_string(sql_type = nil) 692: Cast.new(self, sql_type || String).sql_string 693: end