Added report csv epxort to job model

Gemfile

@@ -84,3 +84,5 @@ gem "pwned"
 gem "action_policy", "~> 0.7.1"
 
 gem "pagy", "~> 9.0"
+
+gem "csv", "~> 3.3"

Gemfile.lock

@@ -102,6 +102,7 @@ GEM
     concurrent-ruby (1.3.4)
     connection_pool (2.4.1)
     crass (1.0.6)
+    csv (3.3.0)
     date (3.3.4)
     debug (1.9.2)
       irb (~> 1.10)
@@ -364,6 +365,7 @@ DEPENDENCIES
   bootsnap
   brakeman
   capybara
+  csv (~> 3.3)
   debug
   faker (~> 3.4)
   image_processing (~> 1.2)

app/models/job.rb

@@ -110,6 +110,18 @@ class Job < ApplicationRecord
     save
   end
 
+  def self.report_to_csv(jobs)
+    columns = [ "id", "costumer_firstname", "costumer_lastname", "paid_at", "cost" ]
+    columns_readable = [ "ID", "Name", "Nachname", "bezahlt am", "Betrag" ]
+    CSV.generate(col_sep: ";") do |csv|
+      csv << columns_readable
+      jobs.each do |job|
+        # csv << job.attributes.values_at(*columns)
+        csv << [ job.id, job.costumer_firstname, job.costumer_lastname, job.paid_at.localtime.strftime("%Y-%m-%d"), job.cost.to_s + " €"  ]
+      end
+    end
+  end
+
   private
 
   def printed_pages_changes?
@@ -131,7 +143,7 @@ class Job < ApplicationRecord
   def calc_cost
     self.cost = (number_of_plans_a0 * cost_qm) + (number_of_plans_a1 * cost_qm / 2) +
                 (number_of_plans_a2 * cost_qm / 4) + (number_of_plans_a3 * cost_qm / 8) +
-                (costum_qm_plan * cost_qm)
+                (costum_qm_plan * cost_qm).round(2)
   end
 
   def set_cost_qm

app/views/admin/jobs/_job_tr.html.erb

@@ -52,7 +52,7 @@
   </td>
   <td class="w-24 p-2 py-3 text-right">
     <span class="badge">
-      <%= job.cost.round(2) %> €
+      <%= job.cost %> €
     </span>
   </td>
   <td class="p-2 py-3">

app/views/jobs/_job_tr.html.erb

@@ -45,7 +45,7 @@
   </td>
   <td class="w-24 p-2 py-3 text-right">
     <span class="badge">
-      <%= job.cost.round(2) %> €
+      <%= job.cost %> €
     </span>
   </td>
   <td class="p-2 py-3">

app/views/operator/jobs/_job_tr.html.erb

@@ -63,7 +63,7 @@
   </td>
   <td class="w-24 p-2 py-3 text-right">
     <span class="badge">
-      <%= job.cost.round(2) %> €
+      <%= job.cost %> €
     </span>
   </td>
   <td class="p-2 py-3">