added vehicles and vehicles extra, dynamic tables for entities, dynamic dropdowns with overlay for selecting and manage data

backend/nomenclatures/models.py

@@ -1,13 +1,39 @@
 from django.db import models
 
-# Create your models here.
+
 class Nomenclature(models.Model):
+    VEHICLE = "vehicle"
+    CONTAINER = "container"
+    APPLIES_TO_CHOICES = [
+        (VEHICLE, "Vehicle"),
+        (CONTAINER, "Container"),
+    ]
+
+    LOOKUP = "lookup"
+    FIELD = "field"
+    KIND_CHOICES = [
+        (LOOKUP, "Lookup Table"),
+        (FIELD, "Custom Field"),
+    ]
+
     code = models.CharField(max_length=50, unique=True)
     name = models.CharField(max_length=255)
-    applies_to = models.CharField(
+    applies_to = models.CharField(max_length=50, choices=APPLIES_TO_CHOICES)
+    kind = models.CharField(max_length=10, choices=KIND_CHOICES, default=LOOKUP)
+    display_field = models.CharField(
         max_length=50,
-        choices=[("vehicle", "Vehicle"), ("container", "Container")]
+        default="name",
+        blank=True,
+        help_text="Key of the NomenclatureField to use as dropdown label (for lookup kind)",
     )
+    sort_order = models.IntegerField(default=0)
+
+    class Meta:
+        ordering = ["sort_order", "code"]
+
+    def __str__(self):
+        return f"{self.name} ({self.code})"
+
 
 class NomenclatureField(models.Model):
     TEXT = "text"
@@ -23,7 +49,42 @@ class NomenclatureField(models.Model):
     ]
 
     nomenclature = models.ForeignKey(
-        Nomenclature, on_delete=models.CASCADE
+        Nomenclature,
+        on_delete=models.CASCADE,
+        related_name="fields",
     )
     key = models.CharField(max_length=50)
-    field_type = models.CharField(max_length=20, choices=FIELD_TYPES)
+    label = models.CharField(max_length=100, blank=True)
+    field_type = models.CharField(max_length=20, choices=FIELD_TYPES)
+    required = models.BooleanField(default=False)
+    choices = models.JSONField(
+        null=True,
+        blank=True,
+        help_text='List of allowed values for choice type, e.g. ["Red","Green","Blue"]',
+    )
+    sort_order = models.IntegerField(default=0)
+
+    class Meta:
+        unique_together = [("nomenclature", "key")]
+        ordering = ["sort_order", "key"]
+
+    def __str__(self):
+        return f"{self.nomenclature.code}.{self.key} ({self.field_type})"
+
+
+class NomenclatureEntry(models.Model):
+    nomenclature = models.ForeignKey(
+        Nomenclature,
+        on_delete=models.CASCADE,
+        related_name="entries",
+    )
+    data = models.JSONField(default=dict)
+    is_active = models.BooleanField(default=True)
+
+    class Meta:
+        verbose_name_plural = "Nomenclature entries"
+        ordering = ["id"]
+
+    def __str__(self):
+        display_key = self.nomenclature.display_field or "name"
+        return str(self.data.get(display_key, f"Entry #{self.pk}"))