Class: Arel::Transformer::ReplaceTableWithSubquery

Inherits:
Object
  • Object
show all
Defined in:
lib/arel/transformer/replace_table_with_subquery.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(subquery_for_table) ⇒ ReplaceTableWithSubquery

Returns a new instance of ReplaceTableWithSubquery.



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# File 'lib/arel/transformer/replace_table_with_subquery.rb', line 6

def initialize(subquery_for_table)
  @subquery_for_table = subquery_for_table
end

Instance Attribute Details

#subquery_for_table ⇒ Object (readonly)

Returns the value of attribute subquery_for_table.



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# File 'lib/arel/transformer/replace_table_with_subquery.rb', line 4

def subquery_for_table
  @subquery_for_table
end

Instance Method Details

#call(arel, next_middleware) ⇒ Object 



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# File 'lib/arel/transformer/replace_table_with_subquery.rb', line 10

def call(arel, next_middleware)
  tree = Arel.enhance(arel)
  update_arel_tables(tree)
  next_middleware.call tree
end