Class: NPlusOneControl::Executor

Inherits:
Object
  • Object
show all
Defined in:
lib/n_plus_one_control/executor.rb

Overview

Runs code for every scale factor and returns collected queries.

Defined Under Namespace

Classes: Collector

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(population: nil, scale_factors: nil, matching: nil) ⇒ Executor

Returns a new instance of Executor.



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# File 'lib/n_plus_one_control/executor.rb', line 63

def initialize(population: nil, scale_factors: nil, matching: nil)
  @population = population
  @scale_factors = scale_factors
  @matching = matching
end

Class Attribute Details

.transaction_begin ⇒ Object

Returns the value of attribute transaction_begin.



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# File 'lib/n_plus_one_control/executor.rb', line 49

def transaction_begin
  @transaction_begin
end

.transaction_rollback ⇒ Object

Returns the value of attribute transaction_rollback.



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# File 'lib/n_plus_one_control/executor.rb', line 50

def transaction_rollback
  @transaction_rollback
end

Instance Attribute Details

#current_scale ⇒ Object (readonly)

Returns the value of attribute current_scale.



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# File 'lib/n_plus_one_control/executor.rb', line 53

def current_scale
  @current_scale
end

Instance Method Details

#call ⇒ Object

rubocop:disable Metrics/MethodLength

Raises:

  • (ArgumentError) 


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# File 'lib/n_plus_one_control/executor.rb', line 70

def call
  raise ArgumentError, "Block is required!" unless block_given?

  results = []
  collector = Collector.new(matching)

  (scale_factors || NPlusOneControl.default_scale_factors).each do |scale|
    @current_scale = scale
    with_transaction do
      population&.call(scale)
      results << [scale, collector.call { yield }]
    end
  end
  results
end