Initial commit

inventory/models.py

@@ -0,0 +1,87 @@
+from django.db import models
+from django.contrib.auth.models import User
+from projects.models import Project
+from finance.models import Category, Supplier
+from django.db.models import Sum
+
+class InventoryCategory(models.Model):
+    name = models.CharField(max_length=255, unique=True, verbose_name="Name")
+
+    class Meta:
+        verbose_name = "Inventarkategorie"
+        verbose_name_plural = "Inventarkategorien"
+        ordering = ["name"]
+
+    def __str__(self):
+        return self.name
+
+
+class InventoryLocation(models.Model):
+    name = models.CharField(max_length=255, unique=True, verbose_name="Name")
+
+    class Meta:
+        verbose_name = "Inventarstandort"
+        verbose_name_plural = "Inventarstandorte"
+        ordering = ["name"]
+
+    def __str__(self):
+        return self.name
+
+
+class InventoryItem(models.Model):
+    name = models.CharField(max_length=255, verbose_name="Name")
+    description = models.TextField(blank=True, verbose_name="Beschreibung")
+    quantity = models.PositiveIntegerField(default=0, verbose_name="Anzahl")
+    location = models.ForeignKey(InventoryLocation, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Standort")
+    article_number = models.CharField(max_length=255, blank=True, verbose_name="Artikelnummer")
+    responsible = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Verantwortlicher")
+    category = models.ForeignKey(InventoryCategory, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Kategorie")
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        verbose_name = "Inventarartikel"
+        verbose_name_plural = "Inventarartikel"
+        ordering = ["name"]
+
+    def __str__(self):
+        return self.name
+
+
+class ProjectInventoryItem(models.Model):
+    class Status(models.TextChoices):
+        OPEN = "open", "Offen"
+        PACKED = "packed", "Eingepackt"
+        ON_SITE = "on_site", "Vor Ort"
+
+    project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name="inventory_items", verbose_name="Projekt")
+    item = models.ForeignKey(InventoryItem, on_delete=models.CASCADE, verbose_name="Artikel")
+    quantity = models.PositiveIntegerField(default=1, verbose_name="Anzahl")
+    status = models.CharField(max_length=20, choices=Status.choices, default=Status.OPEN, verbose_name="Status")
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        verbose_name = "Projektartikel"
+        verbose_name_plural = "Projektartikel"
+        unique_together = ("project", "item")
+
+    def __str__(self):
+        return f"{self.project} - {self.item}"
+
+
+class ShoppingItem(models.Model):
+    project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name="shopping_items", verbose_name="Projekt")
+    name = models.CharField(max_length=255, verbose_name="Name")
+    description = models.TextField(blank=True, verbose_name="Beschreibung")
+    quantity = models.PositiveIntegerField(default=1, verbose_name="Anzahl")
+    supplier = models.ForeignKey(Supplier, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Lieferant")
+    price = models.DecimalField(max_digits=10, decimal_places=2, null=True, blank=True, verbose_name="Preis")
+    category = models.ForeignKey(Category, on_delete=models.SET_NULL, null=True, blank=True, verbose_name="Kategorie")
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        verbose_name = "Einkaufslistenartikel"
+        verbose_name_plural = "Einkaufslistenartikel"
+        ordering = ["name"]
+
+    def __str__(self):
+        return self.name