Class: Arel::Nodes::Count

Inherits:

Function

• Object
• Node
• Function
• Arel::Nodes::Count

Defined in:

lib/arel/nodes/count.rb

Instance Attribute Summary

Attributes inherited from Function

#alias, #distinct, #expressions

Instance Method Summary

• #initialize(expr, distinct = false, aliaz = nil) ⇒ Count constructor

  A new instance of Count.

Methods inherited from Function

#as, #eql?, #hash

Methods included from WindowPredications

#over

Methods included from Predications

#does_not_match, #does_not_match_all, #does_not_match_any, #eq, #eq_all, #eq_any, #gt, #gt_all, #gt_any, #gteq, #gteq_all, #gteq_any, #in, #in_all, #in_any, #lt, #lt_all, #lt_any, #lteq, #lteq_all, #lteq_any, #matches, #matches_all, #matches_any, #not_eq, #not_eq_all, #not_eq_any, #not_in, #not_in_all, #not_in_any

Methods included from OrderPredications

#asc, #desc

Methods inherited from Node

#_caller, #and, #each, #not, #or, #to_sql

Methods included from FactoryMethods

#create_and, #create_false, #create_join, #create_on, #create_string_join, #create_table_alias, #create_true, #grouping, #lower

Constructor Details

#initialize(expr, distinct = false, aliaz = nil) ⇒ Count

Returns a new instance of Count.

# File 'lib/arel/nodes/count.rb', line 4

def initialize expr, distinct = false, aliaz = nil
  super(expr, aliaz)
  @distinct = distinct
end