Closes #31

app/controllers/articles_controller.rb

@@ -99,6 +99,9 @@ def edit_all
     load_article_units
   end
 
+  def prepare_units_migration
+  end
+
   def migrate_units
     build_article_migration_samples
   end

app/views/articles/index.html.haml

@@ -23,7 +23,7 @@
         = link_to t('.ext_db.sync'), sync_supplier_articles_path(@supplier), method: :post, class: 'btn btn-success'
 
     .btn-group
-      = link_to t('.migrate_units') + '...', migrate_units_supplier_articles_path(@supplier), class: 'btn btn-success' if @supplier.unit_migration_completed.nil?
+      = link_to t('.migrate_units') + '...', prepare_units_migration_supplier_articles_path(@supplier), class: 'btn btn-success' if @supplier.unit_migration_completed.nil?
     .btn-group
       = link_to t('.new'), new_supplier_article_path(@supplier), remote: true, class: "btn #{'btn-primary' if @supplier.supplier_remote_source.nil?}"
       = link_to t('.edit_all'), edit_all_supplier_articles_path(@supplier), class: 'btn'

app/views/articles/migrate_units.html.haml

@@ -1,3 +1,5 @@
+- title t('.title', supplier: @supplier.name)
+%span= simple_format(t('.explanation'))
 - content_for :javascript do
   :javascript
     const units = #{raw(@all_units.to_json)};
@@ -14,12 +16,12 @@
   %table.table#migrate-units
     %thead
       %tr
-        %th= heading_helper Article, :apply
-        %th= heading_helper Article, :original_plaintext_unit
-        %th= heading_helper Article, :affected_articles
-        %th= heading_helper Article, :supplier_order_unit
-        %th= heading_helper Article, :contains
-        %th= heading_helper Article, :allow_orders_per
+        %th= t('.column_headers.apply')
+        %th= t('.column_headers.original_plaintext_unit')
+        %th= t('.column_headers.affected_articles')
+        %th= heading_helper ArticleVersion, :supplier_order_unit
+        %th= t('.column_headers.contains')
+        %th= heading_helper ArticleVersion, :group_order_granularity
     %tbody
       - @samples.each_with_index do |sample, index|
         %tr{:id => "sample_row_#{index}"}
@@ -69,4 +71,4 @@
                 %span
                   = '×'.html_safe
                 = form.input :group_order_unit, as: :select, collection: [], input_html: {'data-initial-value': sample[:conversion_result][:group_order_unit], class: 'input-medium'}, label: false, include_blank: false
-  = f.submit class: 'btn btn-primary'
+  = f.submit t('.run_migration'), class: 'btn btn-primary'

app/views/articles/prepare_units_migration.haml

@@ -0,0 +1,8 @@
+- title t('.title', supplier: @supplier.name)
+%p.mb-1
+  =simple_format(t('.explanation'))
+= link_to t('.download'), supplier_articles_path(@supplier, format: :csv), class: 'btn'
+%br/
+%br/
+%p.mt-1
+  = link_to t('.migrate_units') + '...', migrate_units_supplier_articles_path(@supplier), class: 'btn btn-success' if @supplier.unit_migration_completed.nil?

config/locales/de.yml

@@ -504,6 +504,8 @@ de:
         notice_unavail: Alle gewählten Artikel wurden auf "nicht verfügbar" gesetzt
       update_sync:
         notice: Alle Artikel und Preise wurden aktualisiert
+      complete_units_migration:
+        notice: Artikel erfolgreich migriert
     destroy_active_article:
       drop: entfernen
       note: "%{article} wird in laufenden Bestellungen verwendet und kann nicht gelöscht werden. Bitte zuerst den Artikel aus den Bestellungen %{drop_link}."
@@ -537,6 +539,24 @@ de:
       search_placeholder: Name ...
       title: Artikel von %{supplier} (%{count})
       upload: Artikel hochladen
+    prepare_units_migration:
+      title: Artikel von %{supplier} migrieren
+      explanation: |
+        TODO: Allgemeine Erklärung
+        Es wird sehr empfohlen ein Backup herunterzuladen ehe Sie fortfahren:
+      download: Artikel-Backup herunterladen
+      migrate_units: Nächster Schritt
+    migrate_units:
+      title: Artikel von %{supplier} migrieren
+      explanation: |
+        Die Artikeleinheiten werden nun in eine neue, flexiblere Form konvertiert. Passen Sie die Konvertierungsvorschläge an, ehe sie fortfahren.
+        TODO: Besser erklären; vielleicht mit Doku verlinken?
+      column_headers:
+        apply: Konvertieren
+        original_plaintext_unit: Ursprüngliche Volltext-Einheit
+        affected_articles: Betroffene Artikel
+        contains: Beinhaltet
+      run_migration: Migration jetzt durchführen
     model:
       error_in_use: "%{article} kann nicht gelöscht werden. Der Artikel befindet sich in einer laufenden Bestellung!"
       error_nosel: Du hast keine Artikel ausgewählt

config/locales/en.yml

@@ -507,6 +507,8 @@ en:
         notice_unavail: All selected articles were set to be unavailable.
       update_sync:
         notice: All articles and prices were updated.
+      complete_units_migration:
+        notice: Articles successfully migrated
     destroy_active_article:
       drop: delete
       note: "%{article} is used in current orders and can not be deleted Please first ... the article from orders %{drop_link}."
@@ -523,6 +525,7 @@ en:
       change_supplier: Change supplier ...
       download: Download articles
       edit_all: Edit all
+      migrate_units: Migrate old article units
       ext_db:
         import: Import article
         sync: Synchronise
@@ -536,6 +539,23 @@ en:
       search_placeholder: Name ...
       title: Articles from %{supplier} (%{count})
       upload: Upload articles
+    prepare_units_migration:
+      explanation: |
+        TODO: General explanation
+        It's highly recommended to download a backup before continuing:
+      title: Migrate articles of %{supplier}
+      download: Download articles backup
+    migrate_units:
+      title: Migrate articles of %{supplier}
+      explanation: |
+        This will try to migrate articles to their new, more versatile format. You may adapt the suggested changes before continuing if you see fit.
+        TODO: Expand on this explanation - maybe link to some docs
+      column_headers:
+        apply: Convert
+        original_plaintext_unit: Original plaintext unit
+        affected_articles: Affected articles
+        contains: Contains
+      run_migration: Run migration now
     model:
       error_in_use: "%{article} can not be deleted because the article is part of a current order!"
       error_nosel: You have selected no articles

config/routes.rb

@@ -135,6 +135,7 @@
         collection do
           post :update_selected
           get :edit_all
+          get :prepare_units_migration
           get :migrate_units
           post :complete_units_migration
           post :update_all