fix: cool down failed subscription resources

database/versions/b7d4a9c2e6f1_2_2_11.py

@@ -0,0 +1,80 @@
+"""2.2.11
+新增下载失败资源冷却表
+
+Revision ID: b7d4a9c2e6f1
+Revises: 8ab72c49d1e3
+Create Date: 2026-07-07
+"""
+
+from alembic import op
+import sqlalchemy as sa
+
+revision = "b7d4a9c2e6f1"
+down_revision = "8ab72c49d1e3"
+branch_labels = None
+depends_on = None
+
+
+def _has_table(inspector: sa.Inspector, table_name: str) -> bool:
+    """检查数据表是否已存在。"""
+    return table_name in inspector.get_table_names()
+
+
+def upgrade() -> None:
+    """升级数据库结构。"""
+    inspector = sa.inspect(op.get_bind())
+    if _has_table(inspector, "downloadfailure"):
+        return
+
+    op.create_table(
+        "downloadfailure",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("fingerprint", sa.String(), nullable=False),
+        sa.Column("type", sa.String(), nullable=True),
+        sa.Column("title", sa.String(), nullable=True),
+        sa.Column("year", sa.String(), nullable=True),
+        sa.Column("tmdbid", sa.Integer(), nullable=True),
+        sa.Column("doubanid", sa.String(), nullable=True),
+        sa.Column("seasons", sa.String(), nullable=True),
+        sa.Column("episodes", sa.String(), nullable=True),
+        sa.Column("site", sa.Integer(), nullable=True),
+        sa.Column("site_name", sa.String(), nullable=True),
+        sa.Column("torrent_id", sa.String(), nullable=True),
+        sa.Column("torrent_name", sa.String(), nullable=True),
+        sa.Column("torrent_size", sa.Float(), nullable=True),
+        sa.Column("downloader", sa.String(), nullable=True),
+        sa.Column("source", sa.String(), nullable=True),
+        sa.Column("error_message", sa.String(), nullable=True),
+        sa.Column("retry_count", sa.Integer(), nullable=True),
+        sa.Column("first_failed_at", sa.String(), nullable=True),
+        sa.Column("last_failed_at", sa.String(), nullable=True),
+        sa.Column("next_retry_at", sa.String(), nullable=True),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        "ux_downloadfailure_fingerprint",
+        "downloadfailure",
+        ["fingerprint"],
+        unique=True,
+    )
+    op.create_index(
+        "ix_downloadfailure_next_retry_at",
+        "downloadfailure",
+        ["next_retry_at"],
+    )
+    op.create_index(
+        "ix_downloadfailure_media_site",
+        "downloadfailure",
+        ["type", "tmdbid", "doubanid", "site"],
+    )
+
+
+def downgrade() -> None:
+    """回滚数据库结构。"""
+    inspector = sa.inspect(op.get_bind())
+    if not _has_table(inspector, "downloadfailure"):
+        return
+    op.drop_index("ix_downloadfailure_media_site", table_name="downloadfailure")
+    op.drop_index("ix_downloadfailure_next_retry_at", table_name="downloadfailure")
+    op.drop_index("ux_downloadfailure_fingerprint", table_name="downloadfailure")
+    op.drop_table("downloadfailure")