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

#_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

#initializeSelectCore


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

def initialize
  super()
  @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

#groupsObject

Returns the value of attribute groups


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

def groups
  @groups
end

#havingObject

Returns the value of attribute having


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

def having
  @having
end

#projectionsObject

Returns the value of attribute projections


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

def projections
  @projections
end

#set_quantifierObject

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

#sourceObject

Returns the value of attribute source


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

def source
  @source
end

#topObject

Returns the value of attribute top


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

def top
  @top
end

#wheresObject

Returns the value of attribute wheres


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

def wheres
  @wheres
end

#windowsObject

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

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


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# File 'lib/arel/nodes/select_core.rb', line 49

def eql? other
  self.class == other.class &&
    self.source == other.source &&
    self.top == other.top &&
    self.set_quantifier == other.set_quantifier &&
    self.projections == other.projections &&
    self.wheres == other.wheres &&
    self.groups == other.groups &&
    self.having == other.having &&
    self.windows == other.windows
end

#fromObject Also known as: froms


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# File 'lib/arel/nodes/select_core.rb', line 21

def from
  @source.left
end

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


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# File 'lib/arel/nodes/select_core.rb', line 25

def from= value
  @source.left = value
end

#hashObject


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# File 'lib/arel/nodes/select_core.rb', line 42

def hash
  [
    @source, @top, @set_quantifier, @projections,
    @wheres, @groups, @having, @windows
  ].hash
end

#initialize_copy(other) ⇒ Object


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# File 'lib/arel/nodes/select_core.rb', line 32

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