Class: ActiveRecordExtended::QueryMethods::Window::DefineWindowChain

Inherits:
Object
  • Object
show all
Includes:
Utilities::OrderBy, Utilities::Support
Defined in:
lib/active_record_extended/query_methods/window.rb

Constant Summary

Constants included from Utilities::Support

Utilities::Support::A_TO_Z_KEYS

Instance Method Summary collapse

Methods included from Utilities::OrderBy

#inline_order_by, #order_by_expression, #process_ordering_arguments!, #scope_preprocess_order_args, #to_ordered_table_path

Methods included from Utilities::Support

#double_quote, #flatten_safely, #flatten_to_sql, #from_clause_constructor, #generate_grouping, #generate_named_function, #group_when_needed, #key_generator, #literal_key, #needs_to_be_grouped?, #nested_alias_escape, #pipe_cte_with!, #to_arel_sql, #wrap_with_agg_array, #wrap_with_array

Constructor Details

#initialize(scope, window_name) ⇒ DefineWindowChain

Returns a new instance of DefineWindowChain.



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# File 'lib/active_record_extended/query_methods/window.rb', line 10

def initialize(scope, window_name)
  @scope        = scope
  @window_name  = window_name
end

Instance Method Details

#partition_by(*partitions, order_by: nil) ⇒ Object 



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# File 'lib/active_record_extended/query_methods/window.rb', line 15

def partition_by(*partitions, order_by: nil)
  @scope.window_values! << {
    window_name:  to_arel_sql(@window_name),
    partition_by: flatten_to_sql(partitions),
    order_by:     order_by_expression(order_by)
  }

  @scope
end