Class: Sequel::SQL::QualifiedIdentifier

Inherits:

GenericExpression

• Object
• Expression
• GenericExpression
• Sequel::SQL::QualifiedIdentifier

Includes:

QualifyingMethods

Defined in:

lib/sequel/sql.rb

Overview

Represents a qualified identifier (column with table or table with schema).

Instance Attribute Summary

• #column ⇒ Object readonly

  The column/table referenced.

• #table ⇒ Object readonly

  The table/schema qualifying the reference.

Instance Method Summary

• #function(*args) ⇒ Object

  Create a Function using this identifier as the functions name, with the given args.

• #initialize(table, column) ⇒ QualifiedIdentifier constructor

  Set the table and column to the given arguments.

Methods included from QualifyingMethods

#*, #[], #qualify

Methods included from IsDistinctFrom::Methods

#is_distinct_from

Methods included from Sequel::SQLite::JSONOpMethods

#sqlite_json_op, #sqlite_jsonb_op

Methods included from Postgres::HStoreOpMethods

#hstore

Methods included from Postgres::RangeOpMethods

#pg_range

Methods included from Postgres::ArrayOpMethods

#pg_array

Methods included from Postgres::JSONOpMethods

#pg_json, #pg_jsonb

Methods included from Postgres::InetOpMethods

#pg_inet

Methods included from Postgres::PGRowOp::ExpressionMethods

#pg_row

Methods included from SubscriptMethods

#sql_subscript

Methods included from StringMethods

#escaped_ilike, #escaped_like, #ilike, #like

Methods included from PatternMatchMethods

#!~, #=~

Methods included from OrderMethods

#asc, #desc

Methods included from NumericMethods

#+, #coerce

Methods included from ComplexExpressionMethods

#extract, #sql_boolean, #sql_number, #sql_string

Methods included from CastMethods

#cast, #cast_numeric, #cast_string

Methods included from BooleanMethods

#~

Methods included from AliasMethods

#as

Methods inherited from Expression

#==, attr_reader, #clone, #eql?, #hash, inherited, #inspect

Constructor Details

#initialize(table, column) ⇒ QualifiedIdentifier

Set the table and column to the given arguments

# File 'lib/sequel/sql.rb', line 1712

def initialize(table, column)
  @table = convert_identifier(table)
  @column = convert_identifier(column)
  freeze
end

Instance Attribute Details

#column ⇒ Object (readonly)

The column/table referenced

# File 'lib/sequel/sql.rb', line 1709

def column
  @column
end

#table ⇒ Object (readonly)

The table/schema qualifying the reference

# File 'lib/sequel/sql.rb', line 1706

def table
  @table
end

Instance Method Details

#function(*args) ⇒ Object

Create a Function using this identifier as the functions name, with the given args.

# File 'lib/sequel/sql.rb', line 1720

def function(*args)
  Function.new(self, *args)
end