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, #equality?, #fetch_attribute, #invert, #not, #or, #to_sql

Methods included from FactoryMethods

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

Constructor Details

#initialize(relation = nil) ⇒ SelectCore

Returns a new instance of SelectCore.



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# File '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 ⇒ Object

Returns the value of attribute comment.



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

def comment
  @comment
end

#groups ⇒ Object

Returns the value of attribute groups.



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

def groups
  @groups
end

#havings ⇒ Object

Returns the value of attribute havings.



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

def havings
  @havings
end

#optimizer_hints ⇒ Object

Returns the value of attribute optimizer_hints.



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

def optimizer_hints
  @optimizer_hints
end

#projections ⇒ Object

Returns the value of attribute projections.



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

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 7

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 7

def source
  @source
end

#wheres ⇒ Object

Returns the value of attribute wheres.



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

def wheres
  @wheres
end

#windows ⇒ Object

Returns the value of attribute windows.



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

def windows
  @windows
end

Instance Method Details

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

Returns:

  • (Boolean) 


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# File '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

#from ⇒ Object Also known as: froms 



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

def from
  @source.left
end

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



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

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

#hash ⇒ Object 



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# File '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) ⇒ Object 



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# File '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