Provide rake task to integrate multiple method_call_situations records …

…#51

CHANGELOG.md

@@ -1,6 +1,7 @@
 # CHANGELOG
-## [0.2.3](https://github.com/muramurasan/okuribito_rails/releases/tag/v0.2.3) (xxxxxxx xx, 2017)
+## [0.2.4](https://github.com/muramurasan/okuribito_rails/releases/tag/v0.2.4) (xxxxxxx xx, 2017)
 * Fix the following issue:
+** Provide rake task to integrate multiple method_call_situations records #51
 ** method_call_situation don't allow duplicated registration #52
 
 ## [0.2.3](https://github.com/muramurasan/okuribito_rails/releases/tag/v0.2.3) (January 26, 2017)

app/models/okuribito_rails/method_call_situation.rb

@@ -18,6 +18,7 @@ class MethodCallSituation < ActiveRecord::Base
           ->(num) { where("created_at <= ?", Time.zone.today.days_ago(num).end_of_day) }
     scope :with_uncalled_method, -> { where(called_num: 0) }
     scope :with_called_method, -> { where(called_num: 1..Float::INFINITY) }
+    scope :group_by_method, -> { group("class_name", "method_symbol", "method_name") }
 
     def self.search(args)
       mcs = self

lib/tasks/okuribito_rails_tasks.rake

@@ -1,4 +1,21 @@
-# desc "Explaining what the task does"
-# task :okuribito_rails do
-#   # Task goes here
-# end
+namespace :okuribito_rails do
+  desc "Integrate multiple method_call_situations records"
+  task integrate_method_call_situations: :environment do
+    puts "Integrate multiple method_call_situations records...."
+
+    OkuribitoRails::MethodCallSituation.group_by_method.each do |situation|
+      puts "#{situation.class_name}#{situation.method_symbol}#{situation.method_name}"
+      situations = OkuribitoRails::MethodCallSituation.where(class_name: situation.class_name,
+                                                             method_symbol: situation.method_symbol,
+                                                             method_name: situation.method_name)
+      if situations.size > 1
+        sum = situations.pluck(:called_num).inject(0) { |a, e| a + e }
+        situations[0].update(called_num: sum)
+        situations[1..-1].each(&:destroy)
+        puts "  integrate #{situations.size} records..."
+      else
+        puts "  nothing to do..."
+      end
+    end
+  end
+end