foodsoft/app/models/supplier.rb

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# == Schema Information
# Schema version: 20090119155930
#
# Table name: suppliers
#
# id :integer not null, primary key
# name :string(255) default(""), not null
# address :string(255) default(""), not null
# phone :string(255) default(""), not null
# phone2 :string(255)
# fax :string(255)
# email :string(255)
# url :string(255)
# contact_person :string(255)
# customer_number :string(255)
# delivery_days :string(255)
# order_howto :string(255)
# note :string(255)
# shared_supplier_id :integer
# min_order_quantity :string(255)
# deleted_at :datetime
#
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class Supplier < ActiveRecord::Base
acts_as_paranoid # Avoid deleting the supplier for consistency of order-results
has_many :articles, :dependent => :destroy,
:include => [:article_category], :order => 'article_categories.name, articles.name'
has_many :stock_articles
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has_many :orders
has_many :deliveries
has_many :invoices
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attr_accessible :name, :address, :phone, :phone2, :fax, :email, :url, :contact_person, :customer_number, :delivery_days, :order_howto, :note, :shared_supplier_id, :min_order_quantity
validates_length_of :name, :in => 4..30
validates_uniqueness_of :name
validates_length_of :phone, :in => 8..20
validates_length_of :address, :in => 8..50
# for the sharedLists-App
belongs_to :shared_supplier
# 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
def sync_all
updated_articles = Array.new
outlisted_articles = Array.new
for article in articles
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# try to find the associated shared_article
shared_article = article.shared_article
if shared_article
# article will be updated
# skip if shared_article has not been changed
unequal_attributes = article.shared_article_changed?
unless unequal_attributes.blank?
# update objekt but don't save it
# try to convert different units
new_price, new_unit_quantity = article.convert_units
if new_price and new_unit_quantity
article.price = new_price
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article.unit_quantity = new_unit_quantity
else
article.price = shared_article.price
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article.unit_quantity = shared_article.unit_quantity
article.unit = shared_article.unit
end
# update other attributes
article.attributes = {
:name => shared_article.name,
:manufacturer => shared_article.manufacturer,
:origin => shared_article.origin,
:shared_updated_on => shared_article.updated_on,
:tax => shared_article.tax,
:deposit => shared_article.deposit,
:note => shared_article.note
}
updated_articles << [article, unequal_attributes]
end
else
# article isn't in external database anymore
outlisted_articles << article
end
end
return [updated_articles, outlisted_articles]
end
end