Module: VirtualView::ActiveRecord::Relation

Defined in:
lib/virtual_view/active_record/relation.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.prepended(subclass) ⇒ Object 



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# File 'lib/virtual_view/active_record/relation.rb', line 8

def self.prepended(subclass)
  class << subclass
    class_attribute :arel_view
    self.arel_view = false
  end
  subclass.extend(ClassMethods)
end

Instance Method Details

#arel_view ⇒ Object 



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# File 'lib/virtual_view/active_record/relation.rb', line 16

def arel_view
  self.class.arel_view.call.tap do |ar_view|
    unless ar_view.projections.any?
      ar_view.project(arel_table[Arel.star])
    end
  end
end

#from_clause ⇒ Object 



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# File 'lib/virtual_view/active_record/relation.rb', line 28

def from_clause
  ::ActiveRecord::Relation::FromClause.new(table_view, table_name)
end

#from_value ⇒ Object 



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# File 'lib/virtual_view/active_record/relation.rb', line 32

def from_value
  table_view.to_sql
end

#table_view ⇒ Object 



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# File 'lib/virtual_view/active_record/relation.rb', line 24

def table_view
  arel_table.create_table_alias(arel_view, table_name)
end