ФУНКЦИИ - МЕЖПРОЕКТНАЯ КОММУНИКАЦИЯ: blob-дедупликация файлов

plane-src/apps/api/plane/db/models/__init__.py

@@ -4,7 +4,7 @@
 
 from .analytic import AnalyticView
 from .api import APIActivityLog, APIToken
-from .asset import FileAsset
+from .asset import FileAsset, StoredBlob
 from .base import BaseModel
 from .cycle import Cycle, CycleIssue, CycleUserProperties
 from .deploy_board import DeployBoard

plane-src/apps/api/plane/db/models/asset.py

@@ -60,6 +60,13 @@ class FileAsset(BaseModel):
     size = models.FloatField(default=0)
     is_uploaded = models.BooleanField(default=False)
     storage_metadata = models.JSONField(default=dict, null=True, blank=True)
+    blob = models.ForeignKey(
+        "db.StoredBlob",
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+        related_name="assets",
+    )
 
     class Meta:
         verbose_name = "File Asset"
@@ -98,3 +105,43 @@ class FileAsset(BaseModel):
             return f"/api/assets/v2/workspaces/{self.workspace.slug}/projects/{self.project_id}/{self.id}/"
 
         return None
+
+
+class StoredBlob(BaseModel):
+    """
+    Canonical stored object shared by one or more FileAsset records.
+    """
+
+    class Status(models.TextChoices):
+        ACTIVE = "active", "Active"
+        ORPHANED = "orphaned", "Orphaned"
+        MISSING = "missing", "Missing"
+
+    workspace = models.ForeignKey("db.Workspace", on_delete=models.CASCADE, related_name="stored_blobs")
+    sha256 = models.CharField(max_length=64, db_index=True)
+    size = models.PositiveBigIntegerField(default=0)
+    mime_type = models.CharField(max_length=255, blank=True, default="")
+    canonical_object_key = models.CharField(max_length=800)
+    status = models.CharField(max_length=32, choices=Status.choices, default=Status.ACTIVE)
+    ref_count = models.PositiveIntegerField(default=0)
+    storage_metadata = models.JSONField(default=dict, null=True, blank=True)
+
+    class Meta:
+        verbose_name = "Stored Blob"
+        verbose_name_plural = "Stored Blobs"
+        db_table = "stored_blobs"
+        ordering = ("-created_at",)
+        indexes = [
+            models.Index(fields=["workspace", "sha256"], name="stored_blob_workspace_sha_idx"),
+            models.Index(fields=["status"], name="stored_blob_status_idx"),
+        ]
+        constraints = [
+            models.UniqueConstraint(
+                fields=["workspace", "sha256", "size"],
+                condition=models.Q(deleted_at__isnull=True, status="active"),
+                name="stored_blob_unique_active_hash_size",
+            )
+        ]
+
+    def __str__(self):
+        return self.canonical_object_key