Class: Praxis::Mapper::QueryStatistics

Inherits:
Object
  • Object
show all
Defined in:
lib/praxis-mapper/query_statistics.rb

Instance Method Summary collapse

Constructor Details

#initialize(queries_by_model) ⇒ QueryStatistics

Returns a new instance of QueryStatistics.



5
6
7
 
# File 'lib/praxis-mapper/query_statistics.rb', line 5

def initialize(queries_by_model)
  @queries_by_model = queries_by_model
end

Instance Method Details

#sum_totals ⇒ Object

sums up statistics across all models and queries



30
31
32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/praxis-mapper/query_statistics.rb', line 30

def sum_totals
  @sum_totals ||= begin
    totals = Hash.new(0)

    sum_totals_by_model.each do |_, model_totals|
      model_totals.each do |stat, value|
        totals[stat] += value
      end
    end

    totals
  end
end

#sum_totals_by_model ⇒ Object

sums up statistics across all queries, indexed by model



10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/praxis-mapper/query_statistics.rb', line 10

def sum_totals_by_model
  @sum_totals_by_model ||= begin
    totals = Hash.new { |hash, key| hash[key] = Hash.new(0) }

    @queries_by_model.each do |model, queries|
      totals[model][:query_count] = queries.length
      queries.each do |query|
        query.statistics.each do |stat, value|
          totals[model][stat] += value
        end
      end

      totals[model][:datastore_interaction_time] = totals[model][:datastore_interaction_time]
    end

    totals
  end
end