Class: Jobshop::Inspection::DeviationCriterion

Inherits:
ApplicationRecord
  • Object
show all
Defined in:
app/models/jobshop/inspection/deviation_criterion.rb

Instance Method Summary collapse

Instance Method Details

#criterion ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 17

def criterion
  super || build_criterion
end

#lower ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 37

def lower
  self[:lower] && Unitwise(self[:lower].truncate(4), self[:unit])
end

#lower=(value) ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 41

def lower=(value)
  self[:lower] = if value.respond_to?(:unit)
    value.convert_to(self[:unit]).value
  else
     value
  end
end

#lower_less_than_upper ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 61

def lower_less_than_upper
  return unless lower && upper
  if lower > upper
    errors[:base] << "minimum must be less than maximum"
  end
end

#mean ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 29

def mean
  ((nominal + lower) + (nominal + upper)) / 2
end

#nominal ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 33

def nominal
  self[:nominal] && Unitwise(self[:nominal].truncate(4), self[:unit])
end

#oversize?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 93

def oversize?(value)
  value = if value.respond_to?(:unit)
    value.convert_to(self[:unit])
  else
    Unitwise(value, self[:unit])
  end

  value > upper || false
end

#pass?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 80

def pass?(value)
  !undersize?(value) && !oversize?(value)
end

#random ⇒ Object

Generate a random value that has a 90% chance of being in spec. TODO: This needs to go in the tests somewhere, not really in the model.



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 86

def random
  rand_lower = nominal.to_f + lower.to_f * 1.1
  rand_upper = nominal.to_f + upper.to_f * 1.1
  value = rand(rand_lower..rand_upper)
  Unitwise(value.truncate(4), self[:unit])
end

#symmetric? ⇒ Boolean

def specification

  @specfication ||= if symmetric?
    "#{nominal}±#{abs(upper)}"
  else
    "#{nominal}\n#{lower}/#{upper}"
  end
end

Returns:

  • (Boolean) 


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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 76

def symmetric?
  @symmetrical ||= lower == upper * -1
end

#undersize?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 103

def undersize?(value)
  value = if value.respond_to?(:unit)
    value.convert_to(self[:unit])
  else
    Unitwise(value, self[:unit])
  end

  value < nominal - lower || false
end

#upper ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 49

def upper
  self[:upper] && Unitwise(self[:upper].truncate(4), self[:unit])
end

#upper=(value) ⇒ Object 



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# File 'app/models/jobshop/inspection/deviation_criterion.rb', line 53

def upper=(value)
  self[:upper] = if value.respond_to?(:unit)
    value.convert_to(self[:unit]).value
  else
    value
  end
end