old_contents: from django.db import models
  from django.contrib.auth.models import User
  
  
  class MasterAttribute(models.Model):
      """Cotton, Linen"""
  
      TYPE_CHOICES = ((1, 'Material'), )
  
      label = models.TextField()
      type = models.IntegerField(choices=TYPE_CHOICES)
  
      class Meta:
          unique_together = (("label", "type"), )
  
      def __str__(self):
          return "{}. {} / {}".format(self.id, self.label, self.type)
  
  class MasterWorkable(models.Model):
      """e.g. Shirt, T. Shirt, Trousers"""
  
      CATEGORY_CHOICES = ((1, 'Gentlemen'),
                          (2, 'Women'))
  
      label = models.TextField()
      category = models.IntegerField(null=True, choices=CATEGORY_CHOICES)
      attribute = models.ForeignKey(MasterAttribute, blank=True, null=True)   # many if required
  
  
  class MasterService(models.Model):
      """e.g. Dry Washing"""
  
      label = models.TextField()
      workable = models.ForeignKey(MasterWorkable)
      price = models.DecimalField(max_digits=7, decimal_places=2)
      tax = models.DecimalField(max_digits=5, decimal_places=2)
  
  
  class MasterProduct(models.Model):
      """Cookies"""
      UNIT_CHOICES = ((1, 'Piece'),
                      (2, 'Kg'))
  
      label = models.TextField()
      shelf_life_in_days = models.IntegerField()
      price = models.DecimalField(max_digits=7, decimal_places=2)
      tax = models.DecimalField(max_digits=4, decimal_places=2)
      batch_size = models.IntegerField()
      unit = models.IntegerField(choices=UNIT_CHOICES)
  
  
  class MasterProcess(models.Model):
      """e.g. Billing, Sorting, QC, Washing"""
  
      label = models.TextField()
      section = models.ForeignKey('people.MasterSection')
  
  
  class MappingProductServicesProcess(models.Model):
  
      """e.g., Cookies -- bake, Knead, etc """
  
      process = models.ForeignKey(MasterProcess)
      service = models.ForeignKey(MasterService, null=True)
      product = models.ForeignKey(MasterProduct, null=True)
  
new_contents: from django.db import models
  from django.contrib.auth.models import User
  
  
  class MasterAttribute(models.Model):
      """Cotton, Linen"""
  
      TYPE_CHOICES = ((1, 'Material'), )
  
      label = models.TextField()
      type = models.IntegerField(choices=TYPE_CHOICES)
  
      class Meta:
          unique_together = (("label", "type"), )
  
      def __str__(self):
          return "{}. {}".format(self.id, self.label)
  
  class MasterWorkable(models.Model):
      """e.g. Shirt, T. Shirt, Trousers"""
  
      CATEGORY_CHOICES = ((1, 'Gentlemen'),
                          (2, 'Women'))
  
      label = models.TextField()
      category = models.IntegerField(null=True, choices=CATEGORY_CHOICES)
      attribute = models.ForeignKey(MasterAttribute, blank=True, null=True)   # many if required
  
  
  class MasterService(models.Model):
      """e.g. Dry Washing"""
  
      label = models.TextField()
      workable = models.ForeignKey(MasterWorkable)
      price = models.DecimalField(max_digits=7, decimal_places=2)
      tax = models.DecimalField(max_digits=5, decimal_places=2)
  
  
  class MasterProduct(models.Model):
      """Cookies"""
      UNIT_CHOICES = ((1, 'Piece'),
                      (2, 'Kg'))
  
      label = models.TextField()
      shelf_life_in_days = models.IntegerField()
      price = models.DecimalField(max_digits=7, decimal_places=2)
      tax = models.DecimalField(max_digits=4, decimal_places=2)
      batch_size = models.IntegerField()
      unit = models.IntegerField(choices=UNIT_CHOICES)
  
  
  class MasterProcess(models.Model):
      """e.g. Billing, Sorting, QC, Washing"""
  
      label = models.TextField()
      section = models.ForeignKey('people.MasterSection')
  
  
  class MappingProductServicesProcess(models.Model):
  
      """e.g., Cookies -- bake, Knead, etc """
  
      process = models.ForeignKey(MasterProcess)
      service = models.ForeignKey(MasterService, null=True)
      product = models.ForeignKey(MasterProduct, null=True)
  
subject: remove typr