初始化提交

backend/app/repositories/imports.py

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+"""资料导入数据访问（api-spec §8）。"""
+
+from sqlalchemy import func, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.imports import CharacterImportJob, ImportItem
+
+
+async def get_job(session: AsyncSession, job_id: str) -> CharacterImportJob | None:
+    return await session.get(CharacterImportJob, job_id)
+
+
+async def list_jobs(
+    session: AsyncSession,
+    character_id: str,
+    *,
+    page: int = 1,
+    page_size: int = 20,
+) -> tuple[list[CharacterImportJob], int]:
+    conditions = [CharacterImportJob.character_id == character_id]
+    total = (
+        await session.execute(
+            select(func.count()).select_from(CharacterImportJob).where(*conditions)
+        )
+    ).scalar_one()
+    items_result = await session.execute(
+        select(CharacterImportJob)
+        .where(*conditions)
+        .order_by(CharacterImportJob.created_at.desc())
+        .offset(max(page - 1, 0) * page_size)
+        .limit(page_size)
+    )
+    return list(items_result.scalars().all()), int(total or 0)
+
+
+async def add_job(session: AsyncSession, job: CharacterImportJob) -> CharacterImportJob:
+    session.add(job)
+    await session.flush()
+    return job
+
+
+async def list_items(
+    session: AsyncSession,
+    job_id: str,
+    *,
+    page: int = 1,
+    page_size: int = 20,
+) -> tuple[list[ImportItem], int]:
+    conditions = [ImportItem.import_job_id == job_id]
+    total = (
+        await session.execute(select(func.count()).select_from(ImportItem).where(*conditions))
+    ).scalar_one()
+    items_result = await session.execute(
+        select(ImportItem)
+        .where(*conditions)
+        .order_by(ImportItem.sequence.asc())
+        .offset(max(page - 1, 0) * page_size)
+        .limit(page_size)
+    )
+    return list(items_result.scalars().all()), int(total or 0)
+
+
+async def add_items(session: AsyncSession, items: list[ImportItem]) -> None:
+    session.add_all(items)
+    await session.flush()