class Symbol

  1. lib/sequel/extensions/core_extensions.rb
  2. lib/sequel/extensions/pg_array_ops.rb
  3. lib/sequel/extensions/pg_hstore_ops.rb
  4. lib/sequel/extensions/pg_json_ops.rb
  5. lib/sequel/extensions/pg_range_ops.rb
  6. lib/sequel/extensions/pg_row_ops.rb
  7. lib/sequel/extensions/ruby18_symbol_extensions.rb
  8. show all
Parent: core_extensions.rb

Sequel extends Symbol to add methods to implement the SQL DSL.

Methods

Public Instance

  1. []
  2. identifier
  3. sql_function

Included modules

  1. Sequel::SQL::AliasMethods
  2. Sequel::SQL::CastMethods
  3. Sequel::SQL::OrderMethods
  4. Sequel::SQL::BooleanMethods
  5. Sequel::SQL::NumericMethods
  6. Sequel::SQL::QualifyingMethods
  7. Sequel::SQL::StringMethods
  8. Sequel::SQL::SubscriptMethods
  9. Sequel::SQL::ComplexExpressionMethods
  10. Sequel::Postgres::ArrayOpMethods
  11. Sequel::Postgres::HStoreOpMethods
  12. Sequel::Postgres::JSONOpMethods
  13. Sequel::Postgres::RangeOpMethods
  14. Sequel::Postgres::PGRowOp::ExpressionMethods
  15. Sequel::SQL::InequalityMethods

Public Instance methods

[] (*args)

Create an SQL Function with the receiver as the function name and the given arguments.

[show source] 
# File lib/sequel/extensions/ruby18_symbol_extensions.rb, line 19
def [](*args)
  Sequel::SQL::Function.new(self, *args)
end
identifier ()

Returns receiver wrapped in an Sequel::SQL::Identifier. Usually used to prevent splitting the symbol.

:a__b # SQL: "a"."b"
:a__b.identifier # SQL: "a__b"
[show source] 
# File lib/sequel/extensions/core_extensions.rb, line 215
def identifier
  Sequel::SQL::Identifier.new(self)
end
sql_function (*args)

Returns a Sequel::SQL::Function with this as the function name, and the given arguments. This is aliased as Symbol#[] if the RUBY_VERSION is less than 1.9.0. Ruby 1.9 defines Symbol#[], and Sequel doesn’t override methods defined by ruby itself.

:now.sql_function # SQL: now()
:sum.sql_function(:a) # SQL: sum(a)
:concat.sql_function(:a, :b) # SQL: concat(a, b)
[show source] 
# File lib/sequel/extensions/core_extensions.rb, line 227
def sql_function(*args)
  Sequel::SQL::Function.new(self, *args)
end