Merge pull request #1550 from consul/budgets-unfeasible

Investments reclassified as unfeasible

app/models/budget/ballot/line.rb

@@ -13,6 +13,8 @@ class Budget
       validate :check_sufficient_funds
       validate :check_valid_heading
 
+      scope :by_investment, -> (investment_id) { where(investment_id: investment_id) }
+
       before_validation :set_denormalized_ids
 
       def check_sufficient_funds

app/models/budget/investment.rb

@@ -5,6 +5,7 @@ class Budget
     include Sanitizable
     include Taggable
     include Searchable
+    include Reclassification
 
     acts_as_votable
     acts_as_paranoid column: :hidden_at
@@ -61,7 +62,6 @@ class Budget
     before_save :calculate_confidence_score
     before_validation :set_responsible_name
     before_validation :set_denormalized_ids
-    after_save :check_for_reclassification
 
     def self.filter_params(params)
       params.select{|x,_| %w{heading_id group_id administrator_id tag_name valuator_id}.include? x.to_s }
@@ -243,25 +243,6 @@ class Budget
       investments
     end
 
-    def check_for_reclassification
-      if reclassified?
-        log_reclassification
-        remove_reclassified_votes
-      end
-    end
-
-    def reclassified?
-      budget.balloting? && heading_id_changed?
-    end
-
-    def log_reclassification
-      update_column(:previous_heading_id, heading_id_was)
-    end
-
-    def remove_reclassified_votes
-      Budget::Ballot::Line.where(investment: self).destroy_all
-    end
-
     private
 
       def set_denormalized_ids

app/models/budget/reclassification.rb

@@ -0,0 +1,50 @@
+class Budget
+  module Reclassification
+    extend ActiveSupport::Concern
+
+    included do
+      after_save :check_for_reclassification
+    end
+
+    def check_for_reclassification
+     if heading_changed?
+       log_heading_change
+       store_reclassified_votes("heading_changed")
+       remove_reclassified_votes
+     elsif marked_as_unfeasible?
+       store_reclassified_votes("unfeasible")
+       remove_reclassified_votes
+     end
+    end
+
+    def heading_changed?
+      budget.balloting? && heading_id_changed?
+    end
+
+    def marked_as_unfeasible?
+      budget.balloting? && feasibility_changed? && unfeasible?
+    end
+
+    def log_heading_change
+      update_column(:previous_heading_id, heading_id_was)
+    end
+
+    def store_reclassified_votes(reason)
+      ballot_lines_for_investment.each do |line|
+        attrs = { user: line.ballot.user,
+                  investment: self,
+                  reason: reason }
+        Budget::ReclassifiedVote.create!(attrs)
+      end
+    end
+
+    def remove_reclassified_votes
+      ballot_lines_for_investment.destroy_all
+    end
+
+    def ballot_lines_for_investment
+      Budget::Ballot::Line.by_investment(self.id)
+    end
+
+  end
+end

app/models/budget/reclassified_vote.rb

@@ -0,0 +1,12 @@
+class Budget
+  class ReclassifiedVote < ActiveRecord::Base
+    REASONS = %w(heading_changed unfeasible)
+
+    belongs_to :user
+    belongs_to :investment
+
+    validates :user, presence: true
+    validates :investment, presence: true
+    validates :reason, inclusion: {in: REASONS, allow_nil: false}
+  end
+end

db/migrate/20170517123042_create_budget_reclassified_votes.rb

@@ -0,0 +1,11 @@
+class CreateBudgetReclassifiedVotes < ActiveRecord::Migration
+  def change
+    create_table :budget_reclassified_votes do |t|
+      t.integer :user_id
+      t.integer :investment_id
+      t.string :reason, default: nil
+
+      t.timestamps null: false
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170513110025) do
+ActiveRecord::Schema.define(version: 20170517123042) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -154,6 +154,14 @@ ActiveRecord::Schema.define(version: 20170513110025) do
   add_index "budget_investments", ["heading_id"], name: "index_budget_investments_on_heading_id", using: :btree
   add_index "budget_investments", ["tsv"], name: "index_budget_investments_on_tsv", using: :gin
 
+  create_table "budget_reclassified_votes", force: :cascade do |t|
+    t.integer  "user_id"
+    t.integer  "investment_id"
+    t.string   "reason"
+    t.datetime "created_at",    null: false
+    t.datetime "updated_at",    null: false
+  end
+
   create_table "budget_valuator_assignments", force: :cascade do |t|
     t.integer  "valuator_id"
     t.integer  "investment_id"

spec/factories.rb

@@ -306,6 +306,12 @@ FactoryGirl.define do
     association :investment, factory: :budget_investment
   end
 
+  factory :budget_reclassified_vote, class: 'Budget::ReclassifiedVote' do
+    user
+    association :investment, factory: :budget_investment
+    reason "unfeasible"
+  end
+
   factory :vote do
     association :votable, factory: :debate
     association :voter,   factory: :user

spec/features/budgets/investments_spec.rb

@@ -670,7 +670,9 @@ feature 'Budget Investments' do
       expect(page).to_not have_link("Vote")
     end
 
-    scenario "Reclassification" do
+    feature "Reclassification" do
+
+      scenario "Due to heading change" do
         user = create(:user, :level_two)
         investment = create(:budget_investment, :selected, heading: heading)
         heading2 = create(:budget_heading, group: group)
@@ -690,5 +692,29 @@ feature 'Budget Investments' do
 
         expect(page).to have_content("You have voted 0 investment")
       end
+
+      scenario "Due to being unfeasible" do
+        user = create(:user, :level_two)
+        investment = create(:budget_investment, :selected, heading: heading)
+        heading2 = create(:budget_heading, group: group)
+
+        ballot = create(:budget_ballot, user: user, budget: budget)
+        ballot.investments << investment
+
+        login_as(user)
+        visit budget_ballot_path(budget)
+
+        expect(page).to have_content("You have voted one investment")
+
+        investment.feasibility = "unfeasible"
+        investment.unfeasibility_explanation = "too expensive"
+        investment.save
+
+        visit budget_ballot_path(budget)
+
+        expect(page).to have_content("You have voted 0 investment")
+      end
+
+    end
   end
 end

spec/models/budget/ballot/line_spec.rb

@@ -2,7 +2,6 @@ require 'rails_helper'
 
 describe "Budget::Ballot::Line" do
 
-  describe 'Validations' do
   let(:budget){ create(:budget) }
   let(:group){ create(:budget_group, budget: budget) }
   let(:heading){ create(:budget_heading, group: group, price: 10000000) }
@@ -10,6 +9,8 @@ describe "Budget::Ballot::Line" do
   let(:ballot) { create(:budget_ballot, budget: budget) }
   let(:ballot_line) { build(:budget_ballot_line, ballot: ballot, investment: investment) }
 
+  describe 'Validations' do
+
     it "should be valid and automatically denormallyze budget, group and heading when validated" do
       expect(ballot_line).to be_valid
       expect(ballot_line.budget).to eq(budget)
@@ -42,4 +43,30 @@ describe "Budget::Ballot::Line" do
     end
 
   end
+
+  describe "scopes" do
+
+    describe "by_investment" do
+
+      it "should return ballot lines for an investment" do
+        investment1 = create(:budget_investment, :selected, heading: heading)
+        investment2 = create(:budget_investment, :selected, heading: heading)
+
+        ballot1 = create(:budget_ballot, budget: budget)
+        ballot2 = create(:budget_ballot, budget: budget)
+        ballot3 = create(:budget_ballot, budget: budget)
+
+        ballot_line1 = create(:budget_ballot_line, ballot: ballot1, investment: investment1)
+        ballot_line2 = create(:budget_ballot_line, ballot: ballot2, investment: investment1)
+        ballot_line3 = create(:budget_ballot_line, ballot: ballot3, investment: investment2)
+
+        ballot_lines_by_investment = Budget::Ballot::Line.by_investment(investment1.id)
+
+        expect(ballot_lines_by_investment).to include ballot_line1
+        expect(ballot_lines_by_investment).to include ballot_line2
+        expect(ballot_lines_by_investment).to_not include ballot_line3
+      end
+
+    end
+  end
 end

spec/models/budget/investment_spec.rb

@@ -728,20 +728,20 @@ describe Budget::Investment do
     let(:heading1) { create(:budget_heading, group: group) }
     let(:heading2) { create(:budget_heading, group: group) }
 
-    describe "reclassified?" do
+    describe "heading_changed?" do
 
       it "returns true if budget is in balloting phase and heading has changed" do
         investment = create(:budget_investment, heading: heading1)
         investment.heading = heading2
 
-        expect(investment.reclassified?).to eq(true)
+        expect(investment.heading_changed?).to eq(true)
       end
 
       it "returns false if heading has not changed" do
         investment = create(:budget_investment)
         investment.heading = investment.heading
 
-        expect(investment.reclassified?).to eq(false)
+        expect(investment.heading_changed?).to eq(false)
       end
 
       it "returns false if budget is not balloting phase" do
@@ -751,13 +751,13 @@ describe Budget::Investment do
 
           investment.heading = heading2
 
-          expect(investment.reclassified?).to eq(false)
+          expect(investment.heading_changed?).to eq(false)
         end
       end
 
     end
 
-    describe "log_reclassification" do
+    describe "log_heading_change" do
 
       it "stores the previous heading before being reclassified" do
         investment = create(:budget_investment, heading: heading1)
@@ -775,6 +775,30 @@ describe Budget::Investment do
 
     end
 
+    describe "store_reclassified_votes" do
+
+      it "stores the votes for a reclassified investment" do
+        investment = create(:budget_investment, :selected, heading: heading1)
+
+        3.times do
+          ballot = create(:budget_ballot, budget: budget)
+          ballot.investments << investment
+        end
+
+        expect(investment.ballot_lines_count).to eq(3)
+
+        investment.heading = heading2
+        investment.store_reclassified_votes("heading_changed")
+
+        reclassified_vote = Budget::ReclassifiedVote.first
+
+        expect(Budget::ReclassifiedVote.count).to eq(3)
+        expect(reclassified_vote.investment_id).to eq(investment.id)
+        expect(reclassified_vote.user_id).to eq(Budget::Ballot.first.user.id)
+        expect(reclassified_vote.reason).to eq("heading_changed")
+      end
+    end
+
     describe "remove_reclassified_votes" do
 
       it "removes votes from invesment" do
@@ -798,7 +822,7 @@ describe Budget::Investment do
 
     describe "check_for_reclassification" do
 
-      it "removes votes if an investment has been reclassified" do
+      it "stores reclassfied votes and removes actual votes if an investment has been reclassified" do
         investment = create(:budget_investment, :selected, heading: heading1)
 
         3.times do
@@ -813,9 +837,10 @@ describe Budget::Investment do
         investment.reload
 
         expect(investment.ballot_lines_count).to eq(0)
+        expect(Budget::ReclassifiedVote.count).to eq(3)
       end
 
-      it "does not remove votes if the investment has not been reclassifed" do
+      it "does not store reclassified votes nor remove actual votes if the investment has not been reclassifed" do
         investment = create(:budget_investment, :selected, heading: heading1)
 
         3.times do
@@ -829,6 +854,7 @@ describe Budget::Investment do
         investment.reload
 
         expect(investment.ballot_lines_count).to eq(3)
+        expect(Budget::ReclassifiedVote.count).to eq(0)
       end
 
     end

spec/models/budget/reclassified_vote_spec.rb

@@ -0,0 +1,40 @@
+require 'rails_helper'
+
+describe Budget::ReclassifiedVote do
+
+  describe "Validations" do
+    let(:reclassified_vote) { build(:budget_reclassified_vote) }
+
+    it "should be valid" do
+      expect(reclassified_vote).to be_valid
+    end
+
+    it "should not be valid without a user" do
+      reclassified_vote.user_id = nil
+      expect(reclassified_vote).to_not be_valid
+    end
+
+    it "should not be valid without an investment" do
+      reclassified_vote.investment_id = nil
+      expect(reclassified_vote).to_not be_valid
+    end
+
+    it "should not be valid without a valid reason" do
+      reclassified_vote.reason = nil
+      expect(reclassified_vote).to_not be_valid
+
+      reclassified_vote.reason = ""
+      expect(reclassified_vote).to_not be_valid
+
+      reclassified_vote.reason = "random"
+      expect(reclassified_vote).to_not be_valid
+
+      reclassified_vote.reason = "heading_changed"
+      expect(reclassified_vote).to be_valid
+
+      reclassified_vote.reason = "unfeasible"
+      expect(reclassified_vote).to be_valid
+    end
+  end
+
+end