mirror of
https://github.com/inventree/InvenTree.git
synced 2025-06-15 11:35:41 +00:00
Finally got migrations working together
This commit is contained in:
Oliver
@ -1,16 +1,31 @@
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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import os
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from django.utils.translation import ugettext as _
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from django.db import models
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from django.core.validators import MinValueValidator
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from part.models import Part
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def rename_company_image(instance, filename):
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base = 'company_images'
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if filename.count('.') > 0:
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ext = filename.split('.')[-1]
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else:
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ext = ''
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fn = 'company_{pk}_img'.format(pk=instance.pk)
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if ext:
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fn += '.' + ext
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return os.path.join(base,fn)
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class Company(models.Model):
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""" Abstract model representing an external company
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"""
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name = models.CharField(max_length=100, unique=True,
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help_text='Company naem')
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@ -30,6 +45,8 @@ class Company(models.Model):
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contact = models.CharField(max_length=100,
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blank=True)
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image = models.ImageField(upload_to=rename_company_image, max_length=255, null=True, blank=True)
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notes = models.TextField(blank=True)
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def __str__(self):
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@ -54,149 +71,3 @@ class Company(models.Model):
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def has_orders(self):
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return self.order_count > 0
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class SupplierPart(models.Model):
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""" Represents a unique part as provided by a Supplier
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Each SupplierPart is identified by a MPN (Manufacturer Part Number)
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Each SupplierPart is also linked to a Part object
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- A Part may be available from multiple suppliers
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"""
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def get_absolute_url(self):
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return "/supplier/part/{id}/".format(id=self.id)
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class Meta:
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unique_together = ('part', 'supplier', 'SKU')
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# Link to an actual part
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# The part will have a field 'supplier_parts' which links to the supplier part options
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part = models.ForeignKey(Part, on_delete=models.CASCADE,
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related_name='supplier_parts')
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supplier = models.ForeignKey(Company, on_delete=models.CASCADE,
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related_name='parts')
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SKU = models.CharField(max_length=100, help_text='Supplier stock keeping unit')
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manufacturer = models.CharField(max_length=100, blank=True, help_text='Manufacturer')
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MPN = models.CharField(max_length=100, blank=True, help_text='Manufacturer part number')
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URL = models.URLField(blank=True)
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description = models.CharField(max_length=250, blank=True)
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# Default price for a single unit
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single_price = models.DecimalField(max_digits=10, decimal_places=3, default=0)
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# Base charge added to order independent of quantity e.g. "Reeling Fee"
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base_cost = models.DecimalField(max_digits=10, decimal_places=3, default=0)
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# packaging that the part is supplied in, e.g. "Reel"
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packaging = models.CharField(max_length=50, blank=True)
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# multiple that the part is provided in
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multiple = models.PositiveIntegerField(default=1, validators=[MinValueValidator(0)])
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# Mimumum number required to order
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minimum = models.PositiveIntegerField(default=1, validators=[MinValueValidator(0)])
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# lead time for parts that cannot be delivered immediately
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lead_time = models.DurationField(blank=True, null=True)
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def __str__(self):
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return "{sku} - {supplier}".format(
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sku=self.SKU,
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supplier=self.supplier.name)
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class SupplierPriceBreak(models.Model):
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""" Represents a quantity price break for a SupplierPart
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- Suppliers can offer discounts at larger quantities
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- SupplierPart(s) may have zero-or-more associated SupplierPriceBreak(s)
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"""
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part = models.ForeignKey(SupplierPart, on_delete=models.CASCADE, related_name='price_breaks')
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quantity = models.PositiveIntegerField(validators=[MinValueValidator(0)])
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cost = models.DecimalField(max_digits=10, decimal_places=3)
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class Meta:
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unique_together = ("part", "quantity")
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def __str__(self):
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return "{mpn} - {cost}{currency} @ {quan}".format(
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mpn=self.part.MPN,
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cost=self.cost,
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currency=self.currency if self.currency else '',
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quan=self.quantity)
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class SupplierOrder(models.Model):
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"""
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An order of parts from a supplier, made up of multiple line items
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"""
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def get_absolute_url(self):
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return "/supplier/order/{id}/".format(id=self.id)
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# Interal reference for this order
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internal_ref = models.CharField(max_length=25, unique=True)
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supplier = models.ForeignKey(Company, on_delete=models.CASCADE,
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related_name='orders')
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created_date = models.DateField(auto_now_add=True, editable=False)
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issued_date = models.DateField(blank=True, null=True, help_text="Date the purchase order was issued")
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notes = models.TextField(blank=True, help_text="Order notes")
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def __str__(self):
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return "PO {ref} ({status})".format(ref=self.internal_ref,
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status=self.get_status_display)
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PENDING = 10 # Order is pending (not yet placed)
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PLACED = 20 # Order has been placed
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RECEIVED = 30 # Order has been received
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CANCELLED = 40 # Order was cancelled
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LOST = 50 # Order was lost
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ORDER_STATUS_CODES = {PENDING: _("Pending"),
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PLACED: _("Placed"),
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CANCELLED: _("Cancelled"),
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RECEIVED: _("Received"),
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LOST: _("Lost")
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}
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status = models.PositiveIntegerField(default=PENDING,
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choices=ORDER_STATUS_CODES.items())
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delivery_date = models.DateField(blank=True, null=True)
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class SupplierOrderLineItem(models.Model):
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"""
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A line item in a supplier order, corresponding to some quantity of part
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"""
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class Meta:
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unique_together = [
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('order', 'line_number'),
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('order', 'supplier_part'),
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('order', 'internal_part'),
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]
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order = models.ForeignKey(SupplierOrder, on_delete=models.CASCADE)
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line_number = models.PositiveIntegerField(default=1)
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internal_part = models.ForeignKey(Part, null=True, blank=True, on_delete=models.SET_NULL)
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supplier_part = models.ForeignKey(SupplierPart, null=True, blank=True, on_delete=models.SET_NULL)
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quantity = models.PositiveIntegerField(default=1)
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notes = models.TextField(blank=True)
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received = models.BooleanField(default=False)
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