First commit of claude's rework in django + vanillajs fronted

apps/calibers/models.py

@@ -0,0 +1,76 @@
+from django.conf import settings
+from django.db import models
+from django.utils import timezone
+from django.utils.translation import gettext_lazy as _
+
+
+class CaliberStatus(models.TextChoices):
+    PENDING  = 'PENDING',  _('Pending Verification')
+    VERIFIED = 'VERIFIED', _('Verified')
+    REJECTED = 'REJECTED', _('Rejected')
+
+
+class Caliber(models.Model):
+    name             = models.CharField(_('name'), max_length=100, unique=True)
+    short_name       = models.CharField(_('short name'), max_length=50, blank=True)
+
+    # CIP standard dimensions
+    case_length_mm        = models.DecimalField(
+        _('case length (mm)'), max_digits=5, decimal_places=2, null=True, blank=True
+    )
+    overall_length_mm     = models.DecimalField(
+        _('overall length (mm)'), max_digits=5, decimal_places=2, null=True, blank=True
+    )
+    bullet_diameter_mm    = models.DecimalField(
+        _('bullet diameter (mm)'), max_digits=5, decimal_places=2, null=True, blank=True
+    )
+    case_head_diameter_mm = models.DecimalField(
+        _('case head diameter (mm)'), max_digits=5, decimal_places=2, null=True, blank=True
+    )
+    rim_diameter_mm       = models.DecimalField(
+        _('rim diameter (mm)'), max_digits=5, decimal_places=2, null=True, blank=True
+    )
+    max_pressure_mpa      = models.DecimalField(
+        _('max pressure (MPa)'), max_digits=6, decimal_places=1, null=True, blank=True
+    )
+    notes = models.TextField(_('notes'), blank=True)
+
+    # Moderation
+    status = models.CharField(
+        _('status'), max_length=10, choices=CaliberStatus.choices, default=CaliberStatus.PENDING
+    )
+    submitted_by = models.ForeignKey(
+        settings.AUTH_USER_MODEL, null=True, blank=True,
+        on_delete=models.SET_NULL, related_name='submitted_calibers',
+        verbose_name=_('submitted by'),
+    )
+    reviewed_by = models.ForeignKey(
+        settings.AUTH_USER_MODEL, null=True, blank=True,
+        on_delete=models.SET_NULL, related_name='reviewed_calibers',
+        verbose_name=_('reviewed by'),
+    )
+    reviewed_at = models.DateTimeField(_('reviewed at'), null=True, blank=True)
+    created_at  = models.DateTimeField(_('created at'), auto_now_add=True)
+    updated_at  = models.DateTimeField(_('updated at'), auto_now=True)
+
+    class Meta:
+        verbose_name        = _('caliber')
+        verbose_name_plural = _('calibers')
+        ordering = ['name']
+
+    def __str__(self):
+        if self.short_name:
+            return f"{self.name} ({self.short_name})"
+        return self.name
+
+    def verify(self, reviewed_by):
+        self.status = CaliberStatus.VERIFIED
+        self.reviewed_by = reviewed_by
+        self.reviewed_at = timezone.now()
+        self.save(update_fields=['status', 'reviewed_by', 'reviewed_at'])
+
+    def reject(self, reviewed_by):
+        self.status = CaliberStatus.REJECTED
+        self.reviewed_by = reviewed_by
+        self.reviewed_at = timezone.now()
+        self.save(update_fields=['status', 'reviewed_by', 'reviewed_at'])