prvi kod za live uporabu

backend/modules/task_management/models.py

@@ -0,0 +1,59 @@
+# backend/modules/task_management/models.py
+
+from django.db import models
+from django.conf import settings
+from django.core.exceptions import ValidationError
+from django.utils.translation import gettext_lazy as _
+from core.base_models import BaseModel # Uvozimo naš Base
+
+class Task(BaseModel):
+    """
+    Modularni Task model nasljeđuje sva polja iz BaseModel.
+    """
+    STATUS_CHOICES = [
+        ('aktivan', 'Aktivan'),
+        ('servis', 'U tijeku'),
+        ('neaktivan', 'Otkazano'),
+    ]
+    title = models.CharField(max_length=255)
+    description = models.TextField(blank=True)
+    status = models.CharField(
+        max_length=20,
+        choices=STATUS_CHOICES,
+        default='aktivan'
+    )
+    assigned_to = models.ForeignKey(
+        settings.AUTH_USER_MODEL, 
+        on_delete=models.SET_NULL, 
+        null=True, 
+        related_name='tasks'
+    )
+    vehicle = models.ForeignKey(
+        'fleet.Vehicle',
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name='tasks',
+        verbose_name=_("Dizalica"),
+    )
+    work_order = models.ForeignKey(
+        'fleet.WorkOrder',
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name='work_order_tasks',
+        verbose_name=_("Putni nalog"),
+    )
+
+    class Meta:
+        ordering = ['-created_at']
+
+    def __str__(self):
+        return f"{self.title} ({self.status})"
+
+    def clean(self):
+        super().clean()
+        if self.status == 'neaktivan' and not self.work_order_id:
+            raise ValidationError({
+                'work_order': "Putni nalog je obavezan prije zatvaranja zadatka."
+            })