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Class: Arel::Nodes::SelectCore

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Node
Instance Chain:
self, Node, ::Arel::FactoryMethods
Inherits: Arel::Nodes::Node
Defined in: activerecord/lib/arel/nodes/select_core.rb

Class Method Summary

Instance Attribute Summary

Node - Inherited

#equality?

Instance Method Summary

Node - Inherited

#and

Factory method to create an And node.
#fetch_attribute, #invert,
#not

Factory method to create a Nodes::Not node that has the recipient of the caller as a child.
#or

Factory method to create a Grouping node that has an Or node as a child.
#to_sql

FIXME: this method should go away.

::Arel::FactoryMethods - Included

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

Create a LOWER() function.

Constructor Details

.new(relation = nil) ⇒ SelectCore

[ GitHub ] 

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 9



def initialize(relation = nil)
  super()
  @source = JoinSource.new(relation)

  # https://ronsavage.github.io/SQL/sql-92.bnf.html#set%20quantifier
  @set_quantifier  = nil
  @optimizer_hints = nil
  @projections     = []
  @wheres          = []
  @groups          = []
  @havings         = []
  @windows         = []
  @comment         = nil
end


  







Instance Attribute Details



  

    #comment   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 6



attr_accessor :projections, :wheres, :groups, :windows, :comment


  








  

    #from   (rw)
    Also known as: #froms
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 24



def from
  @source.left
end


  








  

    #from=(value)   (rw)
    Also known as: #froms=
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 28



def from=(value)
  @source.left = value
end


  








  

    #froms   (rw)
  



  

    

Alias for #from.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 33



alias :froms :from


  








  

    #groups   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 6



attr_accessor :projections, :wheres, :groups, :windows, :comment


  








  

    #havings   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 7



attr_accessor :havings, :source, :set_quantifier, :optimizer_hints


  








  

    #optimizer_hints   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 7



attr_accessor :havings, :source, :set_quantifier, :optimizer_hints


  








  

    #projections   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 6



attr_accessor :projections, :wheres, :groups, :windows, :comment


  








  

    #set_quantifier   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 7



attr_accessor :havings, :source, :set_quantifier, :optimizer_hints


  








  

    #source   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 7



attr_accessor :havings, :source, :set_quantifier, :optimizer_hints


  








  

    #wheres   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 6



attr_accessor :projections, :wheres, :groups, :windows, :comment


  








  

    #windows   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 6



attr_accessor :projections, :wheres, :groups, :windows, :comment


  







Instance Method Details



  

    #==(other)  
  



  

    

Alias for #eql?.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 64



alias :== :eql?


  








  

    #eql?(other)  ⇒ Boolean 
    Also known as: #==
  



  

    
  





  


  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 52



def eql?(other)
  self.class == other.class &&
    self.source == other.source &&
    self.set_quantifier == other.set_quantifier &&
    self.optimizer_hints == other.optimizer_hints &&
    self.projections == other.projections &&
    self.wheres == other.wheres &&
    self.groups == other.groups &&
    self.havings == other.havings &&
    self.windows == other.windows &&
    self.comment == other.comment
end


  








  

    #hash  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 45



def hash
  [
    @source, @set_quantifier, @projections, @optimizer_hints,
    @wheres, @groups, @havings, @windows, @comment
  ].hash
end


  








  

    #initialize_copy(other)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/nodes/select_core.rb', line 35



def initialize_copy(other)
  super
  @source      = @source.clone if @source
  @projections = @projections.clone
  @wheres      = @wheres.clone
  @groups      = @groups.clone
  @havings     = @havings.clone
  @windows     = @windows.clone
end