Class: Sequel::SQL::AliasedExpression

Inherits:

Expression

• Object
• Expression
• Sequel::SQL::AliasedExpression

Defined in:

lib/sequel/sql.rb

Overview

Represents an aliasing of an expression to a given alias.

Instance Attribute Summary

• #aliaz ⇒ Object (also: #alias) readonly

  The alias to use for the expression, not alias since that is a keyword in ruby.

• #columns ⇒ Object readonly

  The columns aliases to use, for when the aliased expression is a record or set of records (such as a dataset).

• #expression ⇒ Object readonly

  The expression to alias.

Instance Method Summary

• #initialize(expression, aliaz, columns = nil) ⇒ AliasedExpression constructor

  Create an object with the given expression and alias.

Methods inherited from Expression

#==, attr_reader, #eql?, #hash, inherited, #inspect, #lit, #sql_literal

Constructor Details

#initialize(expression, aliaz, columns = nil) ⇒ AliasedExpression

Create an object with the given expression and alias.

# File 'lib/sequel/sql.rb', line 1043

def initialize(expression, aliaz, columns=nil)
  @expression = expression
  @aliaz = aliaz
  @columns = columns
  freeze
end

Instance Attribute Details

#aliaz ⇒ Object (readonly) Also known as: alias

The alias to use for the expression, not alias since that is a keyword in ruby.

# File 'lib/sequel/sql.rb', line 1035

def aliaz
  @aliaz
end

#columns ⇒ Object (readonly)

The columns aliases to use, for when the aliased expression is a record or set of records (such as a dataset).

# File 'lib/sequel/sql.rb', line 1040

def columns
  @columns
end

#expression ⇒ Object (readonly)

The expression to alias

# File 'lib/sequel/sql.rb', line 1031

def expression
  @expression
end