Class: Arel::Nodes::SelectCore

Inherits:
Node
  • Object
show all
Defined in:
lib/arel/nodes/select_core.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Node

#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 ⇒ SelectCore

Returns a new instance of SelectCore.



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

def initialize
  @source         = JoinSource.new nil
  @top            = nil

  # http://savage.net.au/SQL/sql-92.bnf.html#set%20quantifier
  @set_quantifier = nil
  @projections    = []
  @wheres         = []
  @groups         = []
  @having         = nil
  @windows        = []
end

Instance Attribute Details

#groups ⇒ Object

Returns the value of attribute groups.



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

def groups
  @groups
end

#having ⇒ Object

Returns the value of attribute having.



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# File 'lib/arel/nodes/select_core.rb', line 5

def having
  @having
end

#projections ⇒ Object

Returns the value of attribute projections.



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

def projections
  @projections
end

#set_quantifier ⇒ Object

Returns the value of attribute set_quantifier.



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# File 'lib/arel/nodes/select_core.rb', line 5

def set_quantifier
  @set_quantifier
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/arel/nodes/select_core.rb', line 5

def source
  @source
end

#top ⇒ Object

Returns the value of attribute top.



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

def top
  @top
end

#wheres ⇒ Object

Returns the value of attribute wheres.



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

def wheres
  @wheres
end

#windows ⇒ Object

Returns the value of attribute windows.



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

def windows
  @windows
end

Instance Method Details

#from ⇒ Object Also known as: froms 



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# File 'lib/arel/nodes/select_core.rb', line 20

def from
  @source.left
end

#from=(value) ⇒ Object Also known as: froms= 



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

def from= value
  @source.left = value
end

#initialize_copy(other) ⇒ Object 



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# File 'lib/arel/nodes/select_core.rb', line 31

def initialize_copy other
  super
  @source      = @source.clone if @source
  @projections = @projections.clone
  @wheres      = @wheres.clone
  @groups      = @groups.clone
  @having      = @having.clone if @having
  @windows     = @windows.clone
end