backup commit smart signup form

app/models/new_supplier.rb

@@ -0,0 +1,76 @@
+class NewSupplier
+  include ActiveAttr::Model
+  attr_accessor :current_employee
+  attr_reader :employee, :supplier
+
+  attribute :supplier_name
+  attribute :email
+  attribute :password
+  attribute :password_confirmation
+
+  without_current_employee = { unless: 'current_employee.present?' }
+  without_employee = { unless: 'employee.present?' }
+  validates :supplier_name, presence: true
+  validates :email, email: without_current_employee
+  validates :password, presence: without_current_employee, confirmation: without_employee
+
+  validate :employee_uniqueness_or_existence
+  validate :supplier_name_uniqueness
+
+  def current_employee=(employee)
+    @current_employee = @employee = employee
+  end
+
+  def save
+    if valid?
+      persist!
+      true
+    else
+      false
+    end
+  end
+
+  def existing_employee?
+    return true if current_employee.present?
+    return false unless email.present? and password.present?
+    existing_employee = Employee.find_by_email email
+    if existing_employee.valid_password?(password)
+      @employee = existing_employee
+      return true
+    end
+    false
+  end
+
+  def new_supplier_name?
+    Supplier.count_by_name(supplier_name).zero?
+  end
+
+  private
+
+  def persist!
+    @employee ||= current_employee
+    @employee ||= Employee.new email: email, name: email.to_s.sub(/\@.*/, ''), password: password, password_confirmation: password_confirmation
+    raise "Cannot create employee with #{attributes.inspect}" unless employee.save
+    @supplier = Supplier.create name: supplier_name
+    supplier.add_manager employee
+  end
+
+  def employee_uniqueness_or_existence
+    return if current_employee.present?
+    return if @employee = current_employee
+    if Employee.count_by_email(email) > 0
+      employee = Employee.find_by_email(email)
+      if employee.valid_password? password
+        @employee = employee
+      else
+        errors.add :email, :taken
+      end
+    end
+  end
+
+  def supplier_name_uniqueness
+    return unless (current_employee.present? || @employee.present?) and supplier_name.present?
+    current_suppliers = (current_employee || @employee).suppliers
+    errors.add :supplier_name, 'You already have a supplier with that name' if current_suppliers.map(&:name).include? supplier_name
+  end
+end