foodsoft/app/models/supplier.rb

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# encoding: utf-8
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class Supplier < ActiveRecord::Base
has_many :articles, -> { where(:type => nil).includes(:article_category).order('article_categories.name', 'articles.name') }
has_many :stock_articles, -> { includes(:article_category).order('article_categories.name', 'articles.name') }
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has_many :orders
has_many :deliveries
has_many :invoices
belongs_to :shared_supplier # for the sharedLists-App
include ActiveModel::MassAssignmentSecurity
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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, :shared_sync_method
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validates :name, :presence => true, :length => { :in => 4..30 }
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validates :phone, :presence => true, :length => { :in => 8..25 }
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validates :address, :presence => true, :length => { :in => 8..50 }
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validates_length_of :order_howto, :note, maximum: 250
validate :valid_shared_sync_method
validate :uniqueness_of_name
scope :undeleted, -> { where(deleted_at: nil) }
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# 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)
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def sync_all
updated_articles = Array.new
outlisted_articles = Array.new
new_articles = Array.new
for article in articles.undeleted
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# try to find the associated shared_article
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shared_article = article.shared_article(self)
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if shared_article # article will be updated
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unequal_attributes = article.shared_article_changed?(self)
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unless unequal_attributes.blank? # skip if shared_article has not been changed
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# try to convert different units
new_price, new_unit_quantity = article.convert_units
if new_price && 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
# Articles with no order number can be used to put non-shared articles
# in a shared supplier, with sync keeping them.
elsif not article.order_number.blank?
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# article isn't in external database anymore
outlisted_articles << article
end
end
# 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'
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end
def deleted?
deleted_at.present?
end
def mark_as_deleted
transaction do
update_column :deleted_at, Time.now
articles.each(&:mark_as_deleted)
end
end
protected
# make sure the shared_sync_method is allowed for the shared supplier
def valid_shared_sync_method
if shared_supplier && !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)
supplier = supplier.where.not(id: self.id) unless new_record?
if supplier.exists?
message = supplier.first.deleted? ? :taken_with_deleted : :taken
errors.add :name, message
end
end
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end