Initial commit of foodsoft 2

db/migrate/021_remove_table_article_prices.rb

@@ -0,0 +1,75 @@
+class RemoveTableArticlePrices < ActiveRecord::Migration
+  def self.up
+     
+    puts "create columns in articles ..."
+    add_column "articles", "clear_price", :decimal, :precision => 8, :scale => 2, :default => 0.0, :null => false
+    add_column "articles", "gross_price", :decimal, :precision => 8, :scale => 2, :default => 0.0, :null => false
+    add_column "articles", "tax", :float
+    add_column "articles", "refund", :decimal, :precision => 8, :scale => 2, :default => 0.0, :null => false
+    add_column "articles", "unit_quantity", :integer, :default => 1,   :null => false
+    add_column "articles", "order_number", :string
+    add_column "articles", "created_at", :datetime
+    add_column "articles", "updated_at", :datetime
+    
+    # stop auto-updating the timestamps to make the data-copy safe!
+    Article.record_timestamps = false
+    
+    puts "now copy values of article_prices into new articles-columns..."
+    Article.find(:all).each do |article|
+      price = article.current_price
+      article.update_attributes!(:clear_price => price.clear_price,
+                                :gross_price => price.gross_price,
+                                :tax => price.tax,
+                                :refund => price.refund,
+                                :unit_quantity => price.unit_quantity,
+                                :order_number => price.order_number,
+                                :updated_at => price.updated_on,
+                                :created_at => price.updated_on)
+    end
+    
+    
+    puts "delete article_prices, current_price attribute"
+    drop_table :article_prices
+    remove_column :articles, :current_price_id
+  end
+
+  def self.down
+    add_column :articles, :current_price_id, :integer
+    create_table "article_prices", :force => true do |t|
+      t.integer  "article_id",                                  :default => 0,   :null => false
+      t.decimal  "clear_price",   :precision => 8, :scale => 2, :default => 0.0, :null => false
+      t.decimal  "gross_price",   :precision => 8, :scale => 2, :default => 0.0, :null => false
+      t.float    "tax",                                         :default => 0.0, :null => false
+      t.decimal  "refund",        :precision => 8, :scale => 2, :default => 0.0, :null => false
+      t.datetime "updated_on"
+      t.integer  "unit_quantity",                               :default => 1,   :null => false
+      t.string   "order_number"
+    end
+    
+    # copy data from article now into old ArticlePrice-object
+    Article.find(:all).each do |article|
+      price = ArticlePrice.create(:clear_price => article.clear_price,
+                                :gross_price => article.gross_price,
+                                :tax => article.tax,
+                                :refund => article.refund,
+                                :unit_quantity => article.unit_quantity,
+                                :order_number => article.order_number.blank? ? nil : article.order_number,
+                                :updated_on => article.updated_at)
+      
+      article.update_attribute(:current_price, price)
+      price.update_attribute(:article, article)
+
+    end
+    
+    # remove new columns
+    remove_column "articles", "clear_price" 
+    remove_column "articles", "gross_price"
+    remove_column "articles", "tax"
+    remove_column "articles", "refund"
+    remove_column "articles", "unit_quantity"
+    remove_column "articles", "order_number"
+    remove_column "articles", "created_at"
+    remove_column "articles", "updated_at"
+    
+  end
+end