from __future__ import unicode_literals import uuid import re from django.db import models from django.conf import settings from django.contrib.auth.models import User from tree.fields import PathField from tree.models import TreeModelMixin from django.contrib.postgres.fields import HStoreField from django.contrib.auth.models import UserManager import requests STATES = ( ("present", "Present"), ("taken", "Taken"), ("broken", "Broken"), ("missing", "Missing"), ("depleted", "Depleted"), ) def api_print(id): resp = requests.post("{}/api/1/print/{}".format(settings.LABEL_API, id)) resp.raise_for_status() class Category(models.Model): name = models.CharField(max_length=127) icon_id = models.CharField(max_length=64, null=True, blank=True) def __str__(self): return self.name class Meta: ordering = ["name"] verbose_name_plural = "categories" # TODO label versioning # Zapisywać w URL na naklejce jej wersję, aby można było łatwo wyłapać # przedawnione informacje # Also przechowywać "id" z qrkodów/barkodów w historycznej bazie. # also qrcody w stylu //s/ID (żeby się resolvowało w sieci lokalnej) # Also ID zawierające część name class StaffManager(UserManager): pass class StaffProxyModel(User): objects = StaffManager() class Meta: proxy = True verbose_name = "User" verbose_name_plural = "Users" class Item(models.Model, TreeModelMixin): uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False) parent = models.ForeignKey("self", null=True, blank=True, on_delete=models.CASCADE) path = PathField() name = models.TextField() wiki_link = models.TextField(null=True, blank=True) description = models.TextField(blank=True, null=True) state = models.CharField(max_length=31, choices=STATES, default=STATES[0][0]) categories = models.ManyToManyField(Category, blank=True) owner = models.ForeignKey( StaffProxyModel, null=True, blank=True, related_name="owned_items", on_delete=models.CASCADE, ) taken_by = models.ForeignKey( StaffProxyModel, null=True, blank=True, related_name="taken_items", on_delete=models.CASCADE, ) taken_on = models.DateTimeField(blank=True, null=True) taken_until = models.DateTimeField(blank=True, null=True) props = HStoreField(blank=True) def short_id(self): # let's just hope we never have 4 294 967 296 things :) return str(self.pk)[:8] # collisions? what collisions? def __str__(self): return "- " * (self.get_level() or 0) + self.name def get_absolute_url(self): from django.urls import reverse return reverse("item-display", kwargs={"pk": str(self.pk)}) def get_or_create_label(self, **kwargs): defaults = { "id": re.sub("[^A-Z0-9]", "", self.name.upper())[:16], } defaults.update(kwargs) obj, created = self.labels.get_or_create(**kwargs, defaults=defaults) return obj @property def primary_category(self): return next((c for c in self.categories.all() if c.icon_id), None) def print(self): api_print(self.short_id()) class Meta: ordering = ("path",) class ItemImage(models.Model): item = models.ForeignKey(Item, related_name="images", on_delete=models.CASCADE) image = models.ImageField() def __str__(self): return "{}".format(self.image.name) # Deprecated, left in db due to legacy reasons class Label(models.Model): id = models.CharField(max_length=64, primary_key=True) item = models.ForeignKey(Item, related_name="labels", on_delete=models.CASCADE) style = models.CharField( max_length=32, choices=(("basic_99012_v1", "Basic Dymo 89x36mm label"),), default="basic_99012_v1", ) created = models.DateTimeField(auto_now_add=True, blank=True) def __str__(self): return "{}".format(self.id) def print(self): api_print(self.id)