backend_users_equipment_interventions

users/models.py

@@ -0,0 +1,126 @@
+from django.db import models
+from django.core.exceptions import ValidationError
+from simple_history.models import HistoricalRecords
+
+
+class Directie(models.Model):
+    name = models.CharField(max_length=255, verbose_name="Nume Direcție")
+    history = HistoricalRecords()
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = "Direcție"
+        verbose_name_plural = "Direcții"
+
+
+class Serviciu(models.Model):
+    name = models.CharField(max_length=255, verbose_name="Nume Serviciu")
+    # A Serviciu is directly assigned to a Direcție
+    directie = models.ForeignKey(
+        Directie,
+        on_delete=models.CASCADE,
+        related_name="servicii",
+        verbose_name="Direcție",
+    )
+    history = HistoricalRecords()
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = "Serviciu"
+        verbose_name_plural = "Servicii"
+
+
+class Compartiment(models.Model):
+    name = models.CharField(max_length=255, verbose_name="Nume Compartiment")
+    # A Compartiment can be part of a Serviciu or directly included in a Direcție
+    directie = models.ForeignKey(
+        Directie,
+        on_delete=models.CASCADE,
+        null=True,
+        blank=True,
+        related_name="compartimente_directe",
+        verbose_name="Direcție (Direct)",
+    )
+    serviciu = models.ForeignKey(
+        Serviciu,
+        on_delete=models.CASCADE,
+        null=True,
+        blank=True,
+        related_name="compartimente_subordonate",
+        verbose_name="Serviciu",
+    )
+    history = HistoricalRecords()
+
+    def clean(self):
+        # Validation to ensure the Compartiment belongs to either a Direcție OR a Serviciu, but not both or neither.
+        if not self.directie and not self.serviciu:
+            raise ValidationError(
+                "Un compartiment trebuie să aparțină de o Direcție sau de un Serviciu."
+            )
+        if self.directie and self.serviciu:
+            raise ValidationError(
+                "Un compartiment nu poate aparține simultan și de o Direcție și de un Serviciu."
+            )
+
+    def save(self, *args, **kwargs):
+        self.clean()
+        super().save(*args, **kwargs)
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = "Compartiment"
+        verbose_name_plural = "Compartimente"
+
+
+class Employee(models.Model):
+    """
+    Represents the 'Users' from the project specification who will hold equipment.
+    Named 'Employee' to avoid conflicts with Django's built-in auth.User model.
+    """
+
+    name = models.CharField(max_length=255, verbose_name="Name")
+    username = models.CharField(max_length=150, unique=True, verbose_name="User name")
+    role = models.CharField(max_length=255, verbose_name="Function/role")
+    office_number = models.CharField(max_length=50, verbose_name="Office number")
+    email = models.EmailField(verbose_name="Email address")
+    observations = models.TextField(null=True, blank=True, verbose_name="Observations")
+
+    # Organizational Placement - Employees can be placed at any of the three levels
+    directie = models.ForeignKey(
+        Directie,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name="employees",
+        verbose_name="Direcție",
+    )
+    serviciu = models.ForeignKey(
+        Serviciu,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name="employees",
+        verbose_name="Serviciu",
+    )
+    compartiment = models.ForeignKey(
+        Compartiment,
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name="employees",
+        verbose_name="Compartiment",
+    )
+    history = HistoricalRecords()
+
+    def __str__(self):
+        return f"{self.name} ({self.username})"
+
+    class Meta:
+        verbose_name = "Angajat / Utilizator"
+        verbose_name_plural = "Angajați / Utilizatori"