feat: extend software license lifecycle data

Make license type optional and add lifetime or recurring renewal terms, license file and key storage, and provider portal URLs across the UI, API, filters, imports, translations, and migrations.

netbox_slm/models.py

@@ -1,4 +1,5 @@
 from django.core.exceptions import ValidationError
+from django.core.validators import MinValueValidator
 from django.db import models
 from django.urls import reverse
 from django.utils.html import format_html
@@ -57,6 +58,12 @@ class SoftwareReleaseTypes(models.TextChoices):
     STABLE = "S", _("Stable release")
 
 
+class RenewalIntervalUnits(models.TextChoices):
+    DAYS = "days", _("Days")
+    MONTHS = "months", _("Months")
+    YEARS = "years", _("Years")
+
+
 class SoftwareProductVersion(NetBoxModel):
     name = models.CharField(_("name"), max_length=64)
     comments = models.TextField(_("comments"), blank=True)
@@ -176,7 +183,7 @@ class SoftwareLicense(NetBoxModel):
     comments = models.TextField(_("comments"), blank=True)
 
     description = models.CharField(_("description"), max_length=255, null=True, blank=True)
-    type = models.CharField(_("type"), max_length=128)
+    type = models.CharField(_("type"), max_length=128, blank=True)
     spdx_expression = models.CharField(
         _("SPDX expression"), max_length=64, null=True, blank=True, validators=[validate_spdx_expression]
     )
@@ -186,6 +193,16 @@ class SoftwareLicense(NetBoxModel):
     expiration_date = models.DateField(_("expiration date"), null=True, blank=True)
     support = models.BooleanField(_("support"), default=None, null=True, blank=True)
     license_amount = models.PositiveIntegerField(_("license amount"), default=None, null=True, blank=True)
+    lifetime = models.BooleanField(_("lifetime license"), default=False)
+    renewal_interval = models.PositiveIntegerField(
+        _("renewal interval"), null=True, blank=True, validators=[MinValueValidator(1)]
+    )
+    renewal_interval_unit = models.CharField(
+        _("renewal interval unit"), max_length=8, choices=RenewalIntervalUnits.choices, blank=True
+    )
+    license_file = models.FileField(_("license file"), upload_to="netbox_slm/licenses/", null=True, blank=True)
+    license_key = models.TextField(_("license key"), blank=True)
+    provider_portal_url = LaxURLField(_("provider portal URL"), max_length=1024, null=True, blank=True)
 
     software_product = models.ForeignKey(
         to="netbox_slm.SoftwareProduct", verbose_name=_("software product"), on_delete=models.PROTECT
@@ -239,6 +256,14 @@ class SoftwareLicense(NetBoxModel):
             raise ValidationError(
                 {"tenant": _("The selected tenant does not belong to the selected tenant group.")}
             )
+        if bool(self.renewal_interval) != bool(self.renewal_interval_unit):
+            raise ValidationError(
+                {"renewal_interval": _("Renewal interval and unit must be specified together.")}
+            )
+        if self.lifetime and (self.renewal_interval or self.renewal_interval_unit or self.expiration_date):
+            raise ValidationError(
+                {"lifetime": _("A lifetime license cannot have a renewal interval or expiration date.")}
+            )
 
     @property
     def stored_location_txt(self):