Add stock_article_selection (deleting multiple stock articles at once)

app/controllers/stockit_controller.rb

@@ -3,6 +3,7 @@ class StockitController < ApplicationController
   def index
     @stock_articles = StockArticle.includes(:supplier, :article_category).
         order('suppliers.name, article_categories.name, articles.name')
+    @stock_article_selection = StockArticleSelection.new
   end
 
   def new

app/controllers/stockit_selections_controller.rb

@@ -0,0 +1,56 @@
+# encoding: utf-8
+class StockitSelectionsController < ApplicationController
+  
+  def index
+    @stock_article_selections = StockArticleSelection.all
+  end
+
+  def show
+    @stock_article_selection = StockArticleSelection.find(params[:id])
+  end
+
+  def create
+    @stock_article_selection = StockArticleSelection.new(params[:stock_article_selection])
+    @stock_article_selection.created_by = current_user
+
+    if @stock_article_selection.save
+      redirect_to(@stock_article_selection, :notice => 'Löschvorschlag für gewählte Artikel wurde erstellt.')
+    else
+      @stock_articles = StockArticle.includes(:supplier, :article_category).
+          order('suppliers.name, article_categories.name, articles.name')
+      render 'stockit/index'
+    end
+  end
+
+  def destroy # destroy (open or finished) selection without deleting articles
+    stock_article_selection = StockArticleSelection.find(params[:id])
+    stock_article_selection.destroy
+    
+    redirect_to stock_article_selections_path, :notice => 'Löschvorschlag wurde verworfen.'
+  end
+
+  def articles # destroy articles, finish selection
+    stock_article_selection = StockArticleSelection.find(params[:id])
+    
+    destroyed_articles_count = 0
+    failed_articles_count = 0
+    stock_article_selection.stock_articles.each do |article|
+      begin
+        article.destroy # article.delete would save some effort, but validations are important
+        destroyed_articles_count += 1
+      rescue => error # recover if article.destroy fails and continue with next article
+        failed_articles_count += 1
+      end
+    end
+    
+    if destroyed_articles_count>0 # note that 1 successful article.destroy is enough to destroy selection
+      stock_article_selection.destroy
+      flash[:notice] = "#{destroyed_articles_count} gewählte Artikel sind nun gelöscht."
+      flash[:error] = "#{failed_articles_count} Artikel konnten nicht gelöscht werden." unless 0==failed_articles_count
+    else
+      flash[:error] = "Löschvorgang fehlgeschlagen. Es wurden keine Artikel gelöscht."
+    end
+    
+    redirect_to stock_articles_path
+  end
+end

app/helpers/application_helper.rb

@@ -142,7 +142,7 @@ module ApplicationHelper
   # offers a link for writing message to user
   # checks for nil (useful for relations)
   def link_to_user_message_if_valid(user)
-    user.nil? ? '??' : ( link_to user.nick, user_message_path(user), :title => 'Nachricht schreiben' )
+    user.nil? ? '??' : ( link_to user.nick, new_message_path(:message => {:mail_to => user.id}), :title => 'Nachricht schreiben' )
   end
 
   def bootstrap_flash

app/helpers/stock_article_selections_helper.rb

@@ -0,0 +1,2 @@
+module StockArticleSelectionsHelper
+end

app/helpers/stockit_helper.rb

@@ -1,7 +1,18 @@
+# encoding: utf-8
 module StockitHelper
   def stock_article_classes(article)
     class_names = []
     class_names << "unavailable" if article.quantity_available <= 0
     class_names.join(" ")
   end
+  
+  def stock_article_delete_checkbox(article)
+    if article.quantity_available <= 0
+      check_box_tag "stock_article_selection[stock_article_ids][]", article.id, false,
+        { :id => "checkbox_#{article.id}", :title => 'Zum löschen markieren' }
+    else
+      check_box_tag 'checkall', '1', false,
+        { :disabled => true, :title => 'Verfügbare Artikel können nicht gelöscht werden.', :class => 'unavailable' }
+    end
+  end
 end

app/models/stock_article_selection.rb

@@ -0,0 +1,24 @@
+# encoding: utf-8
+class StockArticleSelection < ActiveRecord::Base
+  
+  # Associations
+  has_and_belongs_to_many :stock_articles
+  belongs_to :created_by, :class_name => 'User', :foreign_key => 'created_by_user_id'
+  belongs_to :finished_by, :class_name => 'User', :foreign_key => 'finished_by_user_id'
+  
+  # Validations
+  validate :include_stock_articles
+  
+  def all_articles
+    all_articles = stock_article_ids
+  end
+  
+  protected
+  
+  def include_stock_articles
+    errors.add(:stock_articles, "Es muss mindestens ein Lagerartikel ausgewählt sein.") if stock_articles.empty?
+  end
+  
+  private
+  
+end

app/views/stockit/index.html.haml

@@ -2,7 +2,7 @@
 - content_for :javascript do
   :javascript
     $(function() {
-      $('tr.unavailable').hide();
+      $('tr.unavailable,input.unavailable').hide();
     })
 
 .well.well-small
@@ -12,7 +12,7 @@
         Ansichtsoptionen
         %span.caret
       %ul.dropdown-menu
-        %li= link_to "Nicht verfügbare Artikel zeigen/verstecken", "#", 'data-toggle-this' => 'tr.unavailable', tabindex: -1
+        %li= link_to "Nicht verfügbare Artikel zeigen/verstecken", "#", 'data-toggle-this' => 'tr.unavailable,input.unavailable', tabindex: -1
 
     .btn-group
       = link_to "Neuen Lagerartikel anlegen", new_stock_article_path, class: 'btn btn-primary'
@@ -20,6 +20,7 @@
         class: 'btn'
       = link_to "Inventur anlegen", new_stock_taking_path, class: 'btn'
       = link_to "Inventurübersicht", stock_takings_path, class: 'btn'
+      = link_to 'Löschvorschläge', stock_article_selections_path, class: 'btn'
 
     .btn-group
       = link_to '#', data: {toggle: 'dropdown'}, class: 'btn dropdown-toggle' do
@@ -29,10 +30,15 @@
         - Supplier.all.each do |supplier|
           %li= link_to supplier.name, new_supplier_delivery_path(supplier), tabindex: -1
 
-
+= form_for @stock_article_selection do |form|
+  - if @stock_article_selection.errors.has_key?(:stock_articles)
+    .alert.alert-error
+      = @stock_article_selection.errors.get(:stock_articles).join(" ")
   %table.table.table-hover#articles
     %thead
       %tr
+        %th= check_box_tag 'checkall', '1', false,
+          { 'data-check-all' => 'table#articles tr.unavailable', :title => 'Alle löschbaren Artikel', :class => 'unavailable' }
         %th Artikel
         %th im Lager
         %th davon bestellt
@@ -46,6 +52,7 @@
     %tbody
       - for article in @stock_articles
         %tr{:class => stock_article_classes(article)}
+          %td= stock_article_delete_checkbox(article)
           %td=h article.name
           %td= article.quantity
           %td= article.quantity - article.quantity_available
@@ -59,6 +66,7 @@
             = link_to "Bearbeiten", edit_stock_article_path(article), class: 'btn btn-mini'
             = link_to "Löschen", article, :method => :delete, :confirm => "Bist Du sicher?",
               class: 'btn btn-mini btn-danger'
+  %p= submit_tag "Artikel zum Löschen vormerken", { :class => 'unavailable btn' }
 %p
   Aktueller Lagerwert:
   = number_to_currency StockArticle.stock_value

app/views/stockit_selections/_overview.html.haml

@@ -0,0 +1,19 @@
+
+%table.table.table-hover
+  %tr
+    %th Artikel
+    %th Erstellt am
+    %th Erstellt von
+    %th Optionen
+    
+  - stock_article_selections.each do |stock_article_selection|
+    %tr
+      %td=h truncate stock_article_selection.stock_articles.map{ |article| article.name}.join(', ')
+      %td=h stock_article_selection.created_at
+      %td=h link_to_user_message_if_valid stock_article_selection.created_by
+      %td
+        = link_to 'Anzeigen', stock_article_selection, class: 'btn btn-small'
+        = link_to "Artikel löschen", articles_stock_article_selection_path(stock_article_selection), :method => :delete,
+          :confirm => 'Diesen Löschvorschlag wirklich ausführen und markierte Artikel löschen?', class: 'btn btn-small btn-danger'
+        = link_to "Verwerfen", stock_article_selection, :method => :delete,
+          :confirm => 'Diesen Löschvorschlag wirklich verwerfen?', class: 'btn btn-small'

app/views/stockit_selections/index.html.haml

@@ -0,0 +1,7 @@
+- title "Löschvorschläge für Lagerartikel"
+- if @stock_article_selections.empty?
+  %p Es gibt keine ausstehenden Löschvorschläge.
+  %ul
+    %li= link_to "Löschvorschlag erstellen", stock_articles_path
+- else
+  = render :partial => 'overview', :locals => {:stock_article_selections => @stock_article_selections}

app/views/stockit_selections/show.html.haml

@@ -0,0 +1,18 @@
+- title "Löschvorschlag für #{@stock_article_selection.stock_articles.count} Lagerartikel"
+
+%dl
+  %dt Löschvorschlag vom:
+  %dd=h @stock_article_selection.created_at
+  %dt Erstellt durch:
+  %dd=h link_to_user_message_if_valid(@stock_article_selection.created_by)
+  %dt Zu löschende Artikel
+  - for article in @stock_article_selection.stock_articles
+    %dd=h article.name
+
+
+%p
+  = link_to 'Artikel löschen', articles_stock_article_selection_path(@stock_article_selection), :method => :delete,
+    :confirm => 'Diesen Löschvorschlag wirklich ausführen und markierte Artikel löschen?', class: 'btn btn-danger'
+  = link_to 'Verwerfen', @stock_article_selection, :method => :delete,
+    :confirm => 'Diesen Löschvorschlag wirklich verwerfen?', class: 'btn'
+  = link_to 'Alle Löschvorschläge zeigen', stock_article_selections_path, class: 'btn'

config/routes.rb

@@ -90,6 +90,14 @@ Foodsoft::Application.routes.draw do
       end
     end
     
+    resources :stock_article_selections, :controller => 'stockit_selections',
+      :only => [ :create, :show, :index, :destroy ], :path => "/stock_articles/selections" do
+      member do
+        delete 'articles'
+      end
+    end
+    
+
     resources :stock_articles, :to => 'stockit' do
       collection do
         get :articles_search

db/migrate/20130112121840_create_stock_article_selections.rb

@@ -0,0 +1,18 @@
+class CreateStockArticleSelections < ActiveRecord::Migration
+  def up
+    create_table :stock_article_selections do |t|
+      t.integer :created_by_user_id
+      t.timestamps
+    end
+    
+    create_table :stock_article_selections_stock_articles, :id => false do |t|
+      t.integer :stock_article_id
+      t.integer :stock_article_selection_id
+    end
+  end
+
+  def down
+    drop_table :stock_article_selections
+    drop_table :stock_article_selections_stock_articles
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20121230142516) do
+ActiveRecord::Schema.define(:version => 20130112121840) do
 
   create_table "article_categories", :force => true do |t|
     t.string "name",        :default => "", :null => false
@@ -268,6 +268,17 @@ ActiveRecord::Schema.define(:version => 20121230142516) do
   add_index "pages", ["permalink"], :name => "index_pages_on_permalink"
   add_index "pages", ["title"], :name => "index_pages_on_title"
 
+  create_table "stock_article_selections", :force => true do |t|
+    t.integer  "created_by_user_id"
+    t.datetime "created_at",         :null => false
+    t.datetime "updated_at",         :null => false
+  end
+
+  create_table "stock_article_selections_stock_articles", :id => false, :force => true do |t|
+    t.integer "stock_article_id"
+    t.integer "stock_article_selection_id"
+  end
+
   create_table "stock_changes", :force => true do |t|
     t.integer  "delivery_id"
     t.integer  "order_id"