Module: RuboCop::Cop::Isucon::Mixin::NPlusOneQueryMethods

Extended by:

NodePattern::Macros

Includes:

DatabaseMethods

Included in:

RuboCop::Cop::Isucon::Mysql2::NPlusOneQuery, Sqlite3::NPlusOneQuery

Defined in:

lib/rubocop/cop/isucon/mixin/n_plus_one_query_methods.rb

Overview

Common methods for RuboCop::Cop::Isucon::Mysql2::NPlusOneQuery and Sqlite3::NPlusOneQuery

Constant Summary

MSG =

"This looks like N+1 query."

POST_CONDITION_LOOP_TYPES =

See Also:

• https://github.com/rubocop/rubocop-performance/blob/v1.11.5/lib/rubocop/cop/performance/collection_literal_in_loop.rb#L38

%i[while_post until_post].freeze

LOOP_TYPES =

See Also:

• https://github.com/rubocop/rubocop-performance/blob/v1.11.5/lib/rubocop/cop/performance/collection_literal_in_loop.rb#L39

(POST_CONDITION_LOOP_TYPES + %i[while until for]).freeze

ENUMERABLE_METHOD_NAMES =

See Also:

• https://github.com/rubocop/rubocop-performance/blob/v1.11.5/lib/rubocop/cop/performance/collection_literal_in_loop.rb#L41

(Enumerable.instance_methods + [:each]).to_set.freeze

Instance Method Summary

• #on_send(node) ⇒ Object

Methods included from DatabaseMethods

#connection, #enabled_database?, #find_table_name_from_column_name

Instance Method Details

#on_send(node) ⇒ Object

Parameters:

• node (RuboCop::AST::Node)

# File 'lib/rubocop/cop/isucon/mixin/n_plus_one_query_methods.rb', line 46

def on_send(node)
  with_error_handling(node) do
    with_db_query(node) do |type, root_gda|
      check_and_register_offence(node: node, type: type, root_gda: root_gda, is_array_arg: array_arg?)
    end
  end
end