feat: add import template download link

2026-07-08 16:29:48 +08:00
parent f1b34f8466
commit 5cdbd87ce2
13 changed files with 335 additions and 19 deletions
@@ -70,3 +70,64 @@ class DownloadRelease(models.Model):
                    platform=self.platform,
                    is_current=True,
                ).exclude(pk=self.pk).update(is_current=False)
+
+
+class ImportTemplate(models.Model):
+    name = models.CharField("模板名称", max_length=128)
+    file = models.FileField("模板文件", upload_to="import_templates/", blank=True)
+    external_url = models.URLField("外部下载地址", blank=True)
+    sha256 = models.CharField(
+        "SHA256",
+        max_length=64,
+        blank=True,
+        validators=[
+            RegexValidator(
+                regex=r"^[A-Fa-f0-9]{64}$",
+                message="SHA256 必须是 64 位十六进制字符。",
+            )
+        ],
+    )
+    is_current = models.BooleanField("当前模板", default=False)
+    notes = models.TextField("说明", blank=True)
+    created_at = models.DateTimeField("创建时间", auto_now_add=True)
+    updated_at = models.DateTimeField("更新时间", auto_now=True)
+
+    class Meta:
+        db_table = "import_template"
+        verbose_name = "导入模板"
+        verbose_name_plural = "导入模板"
+        ordering = ("-is_current", "-created_at", "-id")
+        indexes = [
+            models.Index(
+                fields=("is_current",),
+                name="it_current_idx",
+            ),
+        ]
+
+    def __str__(self):
+        return self.name
+
+    @property
+    def download_url(self) -> str:
+        if self.external_url:
+            return self.external_url
+        if self.file:
+            return self.file.url
+        return ""
+
+    @property
+    def has_download(self) -> bool:
+        return bool(self.download_url)
+
+    def clean(self):
+        super().clean()
+        if not self.file and not self.external_url:
+            raise ValidationError("模板文件和外部下载地址至少填写一个。")
+
+    def save(self, *args, **kwargs):
+        with transaction.atomic():
+            super().save(*args, **kwargs)
+            if self.is_current:
+                type(self).objects.filter(is_current=True).exclude(pk=self.pk).update(
+                    is_current=False
+                )