allow to synchronize all articles of a shared supplier

app/controllers/articles_controller.rb

@@ -227,10 +227,10 @@ class ArticlesController < ApplicationController
       redirect_to supplier_articles_url(@supplier), :alert => I18n.t('articles.controller.sync.shared_alert', :supplier => @supplier.name)
     end
     # sync articles against external database
-    @updated_articles, @outlisted_articles = @supplier.sync_all
+    @updated_articles, @outlisted_articles, @new_articles = @supplier.sync_all
     # convert to db-compatible-string
     @updated_articles.each {|a, b| a.shared_updated_on = a.shared_updated_on.to_formatted_s(:db)}
-    if @updated_articles.empty? && @outlisted_articles.empty?
+    if @updated_articles.empty? && @outlisted_articles.empty? && @new_articles.empty?
       redirect_to supplier_articles_path(@supplier), :notice => I18n.t('articles.controller.sync.notice')
     end
     @ignored_article_count = @supplier.articles.where(order_number: [nil, '']).count
@@ -246,8 +246,21 @@ class ArticlesController < ApplicationController
         end
 
         # Update articles
-        params[:articles].each do |id, attrs|
-          Article.find(id).update_attributes! attrs
+        if params[:articles]
+          params[:articles].each do |id, attrs|
+            Article.find(id).update_attributes! attrs
+          end
+        end
+
+        # Add new articles
+        if params[:new_articles]
+          params[:new_articles].each do |attrs|
+            article = Article.new attrs
+            article.supplier = @supplier
+            article.availability = true if @supplier.shared_sync_method == 'all_available'
+            article.availability = false if @supplier.shared_sync_method == 'all_unavailable'
+            article.save!
+          end
         end
       end
 

app/helpers/articles_helper.rb

@@ -2,6 +2,7 @@ module ArticlesHelper
   
   # useful for highlighting attributes, when synchronizing articles
   def highlight_new(unequal_attributes, attribute)
+    return unless unequal_attributes
     unequal_attributes.detect {|a| a == attribute} ? "background-color: yellow" : ""
   end
 

app/helpers/suppliers_helper.rb

@@ -3,4 +3,10 @@ module SuppliersHelper
   def associated_supplier_names(shared_supplier)
     "(#{shared_supplier.suppliers.map(&:name).join(', ')})"
   end
+
+  def shared_sync_method_collection(shared_supplier)
+    shared_supplier.shared_sync_methods.map do |m|
+      [t("suppliers.shared_supplier_methods.#{m}"), m]
+    end
+  end
 end

app/models/article.rb

@@ -59,7 +59,9 @@ class Article < ActiveRecord::Base
   validates_numericality_of :price, :greater_than_or_equal_to => 0
   validates_numericality_of :unit_quantity, :greater_than => 0
   validates_numericality_of :deposit, :tax
-  validates_uniqueness_of :name, :scope => [:supplier_id, :deleted_at, :type]
+  #validates_uniqueness_of :name, :scope => [:supplier_id, :deleted_at, :type], if: Proc.new {|a| a.supplier.shared_sync_method.blank? or a.supplier.shared_sync_method == 'import' }
+  #validates_uniqueness_of :name, :scope => [:supplier_id, :deleted_at, :type, :unit, :unit_quantity]
+  validate :uniqueness_of_name
   
   # Callbacks
   before_save :update_price_history
@@ -214,4 +216,18 @@ class Article < ActiveRecord::Base
   def price_changed?
     changed.detect { |attr| attr == 'price' || 'tax' || 'deposit' || 'unit_quantity' } ? true : false
   end
+
+  # We used have the name unique per supplier+deleted_at+type. With the addition of shared_sync_method all,
+  # this came in the way, and we now allow duplicate names for the 'all' methods - expecting foodcoops to
+  # make their own choice among products with different units by making articles available/unavailable.
+  def uniqueness_of_name
+    matches = Article.where(name: name, supplier_id: supplier_id, deleted_at: deleted_at, type: type)
+    matches = matches.where.not(id: id) unless new_record?
+    if supplier.shared_sync_method.blank? or supplier.shared_sync_method == 'import'
+      errors.add :name, :taken if matches.any?
+    else
+      errors.add :name, :taken_with_unit if matches.where(unit: unit, unit_quantity: unit_quantity).any?
+    end
+  end
+
 end

app/models/shared_supplier.rb

@@ -14,5 +14,13 @@ class SharedSupplier < ActiveRecord::Base
     whitelist = %w(name address phone fax email url delivery_days note)
     attributes.select { |k,_v| whitelist.include?(k) }
   end
+
+  # return list of synchronisation methods available for this supplier
+  def shared_sync_methods
+    methods = []
+    methods += %w(all_available all_unavailable) if shared_articles.count < 200
+    methods += %w(import) # perhaps, in the future: if shared_articles.count > 20
+    methods
+  end
 end
 

app/models/supplier.rb

@@ -9,12 +9,13 @@ class Supplier < ActiveRecord::Base
 
   include ActiveModel::MassAssignmentSecurity
   attr_accessible :name, :address, :phone, :phone2, :fax, :email, :url, :contact_person, :customer_number,
-                  :delivery_days, :order_howto, :note, :shared_supplier_id, :min_order_quantity
+                  :delivery_days, :order_howto, :note, :shared_supplier_id, :min_order_quantity, :shared_sync_method
 
   validates :name, :presence => true, :length => { :in => 4..30 }
   validates :phone, :presence => true, :length => { :in => 8..25 }
   validates :address, :presence => true, :length => { :in => 8..50 }
   validates_length_of :order_howto, :note, maximum: 250
+  validate :valid_shared_sync_method
   validate :uniqueness_of_name
 
   scope :undeleted, -> { where(deleted_at: nil) }
@@ -22,9 +23,11 @@ class Supplier < ActiveRecord::Base
   # sync all articles with the external database
   # returns an array with articles(and prices), which should be updated (to use in a form)
   # also returns an array with outlisted_articles, which should be deleted
+  # also returns an array with new articles, which should be added (depending on shared_sync_method)
   def sync_all
     updated_articles = Array.new
     outlisted_articles = Array.new
+    new_articles = Array.new
     for article in articles.undeleted
       # try to find the associated shared_article
       shared_article = article.shared_article
@@ -63,7 +66,21 @@ class Supplier < ActiveRecord::Base
         outlisted_articles << article
       end
     end
-    return [updated_articles, outlisted_articles]
+    # Find any new articles, unless the import is manual
+    unless shared_sync_method == 'import'
+      for shared_article in shared_supplier.shared_articles
+        unless articles.undeleted.find_by_order_number(shared_article.number)
+          new_articles << shared_article.build_new_article(self)
+        end
+      end
+    end
+    return [updated_articles, outlisted_articles, new_articles]
+  end
+
+  # default value
+  def shared_sync_method
+    return unless shared_supplier
+    self[:shared_sync_method] || 'import'
   end
 
   def deleted?
@@ -79,6 +96,13 @@ class Supplier < ActiveRecord::Base
 
   protected
 
+  # make sure the shared_sync_method is allowed for the shared supplier
+  def valid_shared_sync_method
+    if shared_supplier and !shared_supplier.shared_sync_methods.include?(shared_sync_method)
+      errors.add :name, :included
+    end
+  end
+
   # Make sure, the name is uniq, add usefull message if uniq group is already deleted
   def uniqueness_of_name
     supplier = Supplier.where(name: name)

app/views/articles/_sync_table.html.haml

@@ -0,0 +1,53 @@
+%table.table
+  %thead
+    %tr
+      %th= heading_helper Article, :name
+      %th= heading_helper Article, :note
+      %th= heading_helper Article, :manufacturer
+      %th= heading_helper Article, :origin
+      %th= heading_helper Article, :unit
+      %th= heading_helper Article, :unit_quantity, short: true
+      %th= heading_helper Article, :price
+      %th= heading_helper Article, :tax
+      %th= heading_helper Article, :deposit
+      %th= heading_helper Article, :article_category
+  %tbody
+    - articles.each do |changed_article, attrs|
+      - unless changed_article.new_record?
+        - article = Article.find(changed_article.id)
+        %tr{:style => 'color:grey'}
+          %td= article.name
+          %td= article.note
+          %td= article.manufacturer
+          %td= article.origin
+          %td= article.unit
+          %td= article.unit_quantity
+          %td= number_to_currency article.price
+          %td= number_to_percentage article.tax
+          %td= number_to_currency article.deposit
+          %td= article.article_category.name if article.article_category
+      %tr
+        = fields_for "#{field}[]", changed_article do |form|
+          %td{:style => highlight_new(attrs, :name)}
+            = form.text_field 'name', :size => 0
+            - hidden_fields.each do |field|
+              = form.hidden_field field
+          %td{:style => highlight_new(attrs, :note)}= form.text_field 'note', class: 'input-small'
+          %td{:style => highlight_new(attrs, :manufacturer)}= form.text_field 'manufacturer', class: 'input-small'
+          %td{:style => highlight_new(attrs, :origin)}= form.text_field 'origin', class: 'input-mini'
+          %td{:style => highlight_new(attrs, :unit)}= form.text_field 'unit', class: 'input-mini'
+          %td{:style => highlight_new(attrs, :unit_quantity)}= form.text_field 'unit_quantity', class: 'input-mini'
+          %td{:style => highlight_new(attrs, :price)}
+            .input-prepend
+              %span.add-on= t 'number.currency.format.unit'
+              = form.text_field 'price', class: 'input-mini', style: 'width: 45px'
+          %td{:style => highlight_new(attrs, :tax)}
+            .input-append
+              = form.text_field 'tax', class: 'input-mini', style: 'width: 45px'
+              %span.add-on %
+          %td{:style => highlight_new(attrs, :deposit)}
+            .input-prepend
+              %span.add-on= t 'number.currency.format.unit'
+              = form.text_field 'deposit', class: 'input-mini', style: 'width: 45px'
+          %td= form.select :article_category_id, ArticleCategory.all.map {|a| [ a.name, a.id ] },
+            {include_blank: true}, class: 'input-small'

app/views/articles/index.html.haml

@@ -18,7 +18,8 @@
 
     - if @supplier.shared_supplier
       .btn-group
-        = link_to t('.ext_db.import'), "#import", 'data-toggle-this' => '#import', class: 'btn btn-primary'
+        - if @supplier.shared_sync_method == 'import'
+          = link_to t('.ext_db.import'), "#import", 'data-toggle-this' => '#import', class: 'btn btn-primary'
         = link_to t('.ext_db.sync'), sync_supplier_articles_path(@supplier), method: :post, class: 'btn btn-success'
 
     .btn-group

app/views/articles/sync.html.haml

@@ -1,72 +1,39 @@
 - title t('.title')
 
 = form_tag update_synchronized_supplier_articles_path(@supplier) do
-  %h2= t '.outlist.title'
-  %p
-  - unless @outlisted_articles.empty?
-    = t('.outlist.body').html_safe
-    %ul
-      - for article in @outlisted_articles
-        %li
-          = hidden_field_tag "outlisted_articles[#{article.id}]", '1'
-          = article.name
-          - if article.in_open_order
-            .alert= t '.outlist.alert_used', article: article.name
-  - else
-    %i= t '.outlist.body_skip'
+  - if @outlisted_articles.any?
+    %h2= t '.outlist.title'
+    %p
+      = t('.outlist.body').html_safe
+      %ul
+        - for article in @outlisted_articles
+          %li
+            = hidden_field_tag "outlisted_articles[#{article.id}]", '1'
+            = article.name
+            - if article.in_open_order
+              .alert= t '.outlist.alert_used', article: article.name
+    %hr/
+
+  - if @updated_articles.any?
+    %h2= t '.update.title'
+    %p
+      %i
+        = t '.update.update_msg', count: @updated_articles.size
+        = t '.update.body'
+    = render 'sync_table', articles: @updated_articles, field: 'articles', hidden_fields: %w(shared_updated_on)
+    %hr/
+
+  - if @new_articles.any?
+    %h2= t '.upnew.title'
+    %p
+      %i= t '.upnew.body_count', count: @new_articles.length
+    = render 'sync_table', articles: @new_articles, field: 'new_articles', hidden_fields: %w(shared_updated_on order_number)
+    %hr/
+
   - if @ignored_article_count > 0
-    %i= t '.outlist.body_ignored', count: @ignored_article_count
-  %hr/
-  %h2= t '.update.title'
-  %p
-    %i
-      = t '.update.update_msg', count: @updated_articles.size
-      = t '.update.body'
-  %table.table
-    %thead
-      %tr
-        %th= heading_helper Article, :name
-        %th= heading_helper Article, :note
-        %th= heading_helper Article, :manufacturer
-        %th= heading_helper Article, :origin
-        %th= heading_helper Article, :unit
-        %th= heading_helper Article, :unit_quantity, short: true
-        %th= heading_helper Article, :price
-        %th= heading_helper Article, :tax
-        %th= heading_helper Article, :deposit
-        %th= heading_helper Article, :article_category
-    %tbody
-      - @updated_articles.each do |updated_article, attrs|
-        - article = Article.find(updated_article.id)
-        %tr{:style => 'color:grey'}
-          %td= article.name
-          %td= article.note
-          %td= article.manufacturer
-          %td= article.origin
-          %td= article.unit
-          %td= article.unit_quantity
-          %td= article.price
-          %td= article.tax
-          %td= article.deposit
-          %td= article.article_category.name if article.article_category
-        %tr
-          = fields_for 'articles[]', updated_article do |form|
-            %td{:style => highlight_new(attrs, :name)}
-              = form.text_field 'name', :size => 0
-              = form.hidden_field 'shared_updated_on'
-            %td{:style => highlight_new(attrs, :note)}= form.text_field 'note', class: 'input-small'
-            %td{:style => highlight_new(attrs, :manufacturer)}= form.text_field 'manufacturer', class: 'input-small'
-            %td{:style => highlight_new(attrs, :origin)}= form.text_field 'origin', class: 'input-mini'
-            %td{:style => highlight_new(attrs, :unit)}= form.text_field 'unit', class: 'input-mini'
-            %td{:style => highlight_new(attrs, :unit_quantity)}= form.text_field 'unit_quantity', class: 'input-mini'
-            %td{:style => highlight_new(attrs, :price)}= form.text_field 'price', class: 'input-mini'
-            %td{:style => highlight_new(attrs, :tax), class: 'input-append'}
-              = form.text_field 'tax', class: 'input-mini'
-              %span.add-on %
-            %td{:style => highlight_new(attrs, :deposit)}= form.text_field 'deposit', class: 'input-mini'
-            %td= form.select :article_category_id, ArticleCategory.all.map {|a| [ a.name, a.id ] },
-              {include_blank: true}, class: 'input-small'
-  %hr/
+    %p
+      %i= t '.outlist.body_ignored', count: @ignored_article_count
+
   = hidden_field 'supplier', 'id'
   = submit_tag t('.submit'), class: 'btn btn-primary'
   = link_to t('ui.or_cancel'), supplier_articles_path(@supplier)

app/views/suppliers/_form.html.haml

@@ -16,6 +16,8 @@
   = f.input :order_howto, as: :text, input_html: {rows: 5}
   = f.input :note, as: :text, input_html: {rows: 5}
   = f.input :min_order_quantity
+  - if @supplier.shared_supplier
+    = f.input :shared_sync_method, collection: shared_sync_method_collection(@supplier.shared_supplier), input_html: {class: 'input-xlarge'}, include_blank: false, disabled: @supplier.shared_supplier.shared_sync_methods.count < 2
   .form-actions
     = f.submit class: 'btn'
     = link_to t('ui.or_cancel'), suppliers_path

app/views/suppliers/show.html.haml

@@ -10,6 +10,7 @@
     - if shared_supplier = @supplier.shared_supplier
       .alert.alert-info
         = t 'suppliers.shared_supplier_note'
+        = t "suppliers.shared_supplier_methods.#{@supplier.shared_sync_method}"
 
     %dl.dl-horizontal
       %dt= heading_helper(Supplier, :address) + ':'

config/locales/en.yml

@@ -135,6 +135,7 @@ en:
         order_howto: How to order
         phone: Phone
         phone2: Phone 2
+        shared_sync_method: How to synchronize
         url: Homepage
       task:
         description: Description
@@ -172,6 +173,15 @@ en:
     errors:
       has_many_left: is still associated with a %{collection}!
       models:
+        article:
+          attributes:
+            name:
+              taken: name is already taken
+              taken_with_unit: name and unit are already taken
+        supplier:
+          attributes:
+            shared_sync_method:
+              included: is not a valid option for this supplier
         task:
           attributes:
             done:
@@ -396,6 +406,11 @@ en:
         update_msg:
           one: One article needs to be updated.
           other: '%{count} articles need to be updated.'
+      upnew:
+        body_count:
+          one: There is one new article to add.
+          other: 'There are %{count} articles to add.'
+        title: Add new ...
     upload:
       body: <p>The file has to be a text file with the ending '.csv' The first line will be ignored when imported</p> <p>The fields have to be separated with semicolons (';') and the text enclosed by double quotation marks ("text...").</p> <p>As character set UTF-8 is demanded. Correct order of the column:</p>
       fields:
@@ -1437,6 +1452,10 @@ en:
     new:
       title: New supplier
     shared_supplier_note: Supplier is connected to the external database.
+    shared_supplier_methods:
+      import: Articles are imported manually.
+      all_available: New articles are available by default.
+      all_unavailable: New articles are not available by default.
     shared_suppliers:
       body: <p>Suppliers of the external database are displayed here.</p> <p>You can import external suppliers by subscribing (see below).</p> <p>A new supplier will be created and connected to the external database.</p>
       subscribe: Subscribe

db/migrate/20140521142651_add_sync_method_to_supplier.rb

@@ -0,0 +1,5 @@
+class AddSyncMethodToSupplier < ActiveRecord::Migration
+  def change
+    add_column :suppliers, :shared_sync_method, :string
+  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: 20140318173000) do
+ActiveRecord::Schema.define(version: 20140521142651) do
 
   create_table "article_categories", force: true do |t|
     t.string "name",        default: "", null: false
@@ -317,6 +317,7 @@ ActiveRecord::Schema.define(version: 20140318173000) do
     t.integer  "shared_supplier_id"
     t.string   "min_order_quantity"
     t.datetime "deleted_at"
+    t.string   "shared_sync_method"
   end
 
   add_index "suppliers", ["name"], name: "index_suppliers_on_name", unique: true, using: :btree

spec/factories/article.rb

@@ -9,7 +9,7 @@ FactoryGirl.define do
     tax { [6, 21].sample }
     deposit { rand(10) < 8 ? 0 : [0.0, 0.80, 1.20, 12.00].sample }
     unit_quantity { rand(5) < 3 ? 1 : rand(1..20) }
-    #supplier_id
+    supplier { create :supplier }
     article_category { create :article_category }
   end
 

spec/models/article_spec.rb

@@ -108,7 +108,7 @@ describe Article do
 
     it 'does not synchronise when it has no order number' do
       article.update_attributes :order_number => nil
-      expect(supplier.sync_all).to eq [[], []]
+      expect(supplier.sync_all).to eq [[], [], []]
     end
   end
 end