Add search method on dossier model

app/models/dossier.rb

@@ -128,6 +128,29 @@ class Dossier < ActiveRecord::Base
     Dossier.joins(:procedure).where("state='closed' AND dossiers.procedure_id = procedures.id AND procedures.administrateur_id = #{current_gestionnaire.administrateur_id}").order('updated_at ASC')
   end
 
+  def self.search terms
+    return if terms.blank?
+    dossiers = Dossier.arel_table
+    users = User.arel_table
+    etablissements = Etablissement.arel_table
+    entreprises = Entreprise.arel_table
+    composed_scope = self.joins('LEFT OUTER JOIN users ON users.id = dossiers.user_id')
+                         .joins('LEFT OUTER JOIN entreprises ON entreprises.dossier_id = dossiers.id')
+                         .joins('LEFT OUTER JOIN etablissements ON etablissements.dossier_id = dossiers.id')
+    terms.split.each do |word|
+      query_string = "%#{word}%"
+      query_string_start_with = "#{word}%"
+      composed_scope = composed_scope.where(
+          dossiers[:nom_projet].matches(query_string).or\
+              users[:email].matches(query_string).or\
+              dossiers[:id].eq(word).or\
+              etablissements[:siret].matches(query_string_start_with).or\
+              entreprises[:raison_sociale].matches(query_string)
+      )
+    end
+    composed_scope
+  end
+
   private
 
   def build_default_cerfa

spec/models/dossier_spec.rb

@@ -417,5 +417,60 @@ describe Dossier do
         it { expect(subject.size).to eq(1) }
       end
     end
+
+    describe '.search' do
+      subject { described_class.search(terms) }
+
+      let!(:dossier_1) { create(:dossier, nom_projet: 'Projet de test', user: create(:user, email: 'contact@test.com')) }
+      let!(:dossier_2) { create(:dossier, nom_projet: 'Lili et Marcel', user: create(:user, email: 'plop@gmail.com')) }
+      let!(:dossier_3) { create(:dossier, nom_projet: 'Construction projet marcel', user: create(:user, email: 'peace@clap.fr')) }
+
+      let!(:etablissement_1) { create(:etablissement, entreprise: create(:entreprise, raison_sociale: 'OCTO Academy', dossier: dossier_1), dossier: dossier_1, siret: '41636169600051') }
+      let!(:etablissement_2) { create(:etablissement, entreprise: create(:entreprise, raison_sociale: 'Plop octo', dossier: dossier_2), dossier: dossier_2, siret: '41816602300012') }
+      let!(:etablissement_3) { create(:etablissement, entreprise: create(:entreprise, raison_sociale: 'OCTO Technology', dossier: dossier_3), dossier: dossier_3, siret: '41816609600051') }
+
+      describe 'search is empty' do
+        let(:terms) { '' }
+
+        it { expect(subject).to eq(nil) }
+      end
+
+      describe 'search on file title' do
+        let(:terms) { 'Marcel' }
+
+        it { expect(subject.size).to eq(2) }
+      end
+
+      describe 'search on contact email' do
+        let(:terms) { 'clap' }
+
+        it { expect(subject.size).to eq(1) }
+      end
+
+      describe 'search on ID dossier' do
+        let(:terms) { "#{dossier_2.id}" }
+
+        it { expect(subject.size).to eq(1) }
+      end
+
+      describe 'search on SIRET' do
+
+        let(:terms) { '4181' }
+
+        it { expect(subject.size).to eq(2) }
+      end
+
+      describe 'search on raison social' do
+        let(:terms) { 'OCTO' }
+
+        it { expect(subject.size).to eq(3) }
+      end
+
+      describe 'search on multiple fields' do
+        let(:terms) { 'octo peace' }
+
+        it { expect(subject.size).to eq(1) }
+      end
+    end
   end
 end