Class: FactValue

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/fact_value.rb

Class Method Summary collapse

Class Method Details

.build_facts_hash(facts) ⇒ Object 


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# File 'app/models/fact_value.rb', line 64

def self.build_facts_hash facts
  hash = {}
  facts.each do |fact|
    hash[fact.host.to_s] ||= {}
    hash[fact.host.to_s].update({fact.name.to_s => fact.value})
  end
  return hash
end

.count_each(fact) ⇒ Object

returns the sum of each value, e.g. how many machines with 2,4…n cpu's


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# File 'app/models/fact_value.rb', line 56

def self.count_each(fact)
  output = []
  where({:fact_names => {:name => fact}}).joins(:fact_name).count(:group=>'value').each do |k,v|
    output << {:label => k, :data => v }  unless v == 0
  end
  output
end

.mem_average(fact) ⇒ Object

returns the average of all facts required only on facts that return a unit (e.g. MB, GB etc) normal facts could be used via the sum and AR average


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# File 'app/models/fact_value.rb', line 42

def self.mem_average(fact)
  total, count = to_gb(fact)
  return 0 if count == 0
  (total / count).round(1)
end

.mem_sum(fact) ⇒ Object

returns the rounded total of memory fact values (e.g. MB, GB etc)


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# File 'app/models/fact_value.rb', line 49

def self.mem_sum(fact)
  to_gb(fact).first.to_f.round(1)
rescue
  0
end