zk
125 lines
6.2 KiB
Python
125 lines
6.2 KiB
Python
"""定制简历存取 + 数据转换模块
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提供定制简历的保存（数据库持久化）、查询、回滚（Redis临时备份）、从 ResumeDetail 构建能力。
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各 Service 统一复用，不直接操作数据库表和 Redis key。
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"""
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import random
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import string
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from sqlalchemy import select, update
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from app.core.database import async_session_factory
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from app.core.redis import RedisManager
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from app.models.user_job_customize_resume import UserJobCustomizeResume
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from app.schemas.customize_resume import (
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CustomizeResume, ResumeProfile, Education, Work, Internship, Project, Competition, Paragraph,
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)
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from app.services.resume_loader import ResumeDetail, load_default_resume_detail
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from app.tool.snowflake import next_id
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# Redis 回滚常量
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ROLLBACK_PREFIX = "customize:resume:rollback:"
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ROLLBACK_EXPIRE = 30 * 60 # 30分钟
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_CHARS = string.ascii_letters + string.digits
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def _rand_id() -> str:
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"""生成随机8位字符串标识"""
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return "".join(random.choices(_CHARS, k=8))
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def _build_paragraphs(description: list[dict] | None) -> list[Paragraph]:
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"""将数据库 description [{id, text}] 转为 Paragraph 列表"""
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if not description:
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return []
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return [Paragraph(id=_rand_id(), text=item.get("text", "")) for item in description if isinstance(item, dict)]
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def build_from_detail(detail: ResumeDetail) -> CustomizeResume:
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"""从 ResumeDetail 组装 CustomizeResume"""
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resume = detail.resume
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profile = ResumeProfile(
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avatarUrl=resume.avatar_url or "", name=resume.name or "", email=resume.email or "",
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mobileNumber=resume.mobile_number or "", city=resume.city or "",
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wechatNumber=resume.wechat_number or "", portfolioUrl=resume.portfolio_url or "",
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skills=resume.skills or [], certificates=resume.certificates or [],
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summary=resume.summary or "",
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)
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return CustomizeResume(
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resume=profile,
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education=[Education(id=_rand_id(), school=r.school or "", major=r.major or "",
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degree=r.degree or "", studyType=r.study_type or "",
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startDate=r.start_date or "", endDate=r.end_date or "",
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description=_build_paragraphs(r.description)) for r in detail.education],
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work=[Work(id=_rand_id(), companyName=r.company_name or "", position=r.position or "",
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startDate=r.start_date or "", endDate=r.end_date or "",
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description=_build_paragraphs(r.description)) for r in detail.work],
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internship=[Internship(id=_rand_id(), companyName=r.company_name or "", position=r.position or "",
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startDate=r.start_date or "", endDate=r.end_date or "",
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description=_build_paragraphs(r.description)) for r in detail.internship],
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project=[Project(id=_rand_id(), companyName=r.company_name or "", projectName=r.project_name or "",
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role=r.role or "", startDate=r.start_date or "", endDate=r.end_date or "",
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description=_build_paragraphs(r.description)) for r in detail.project],
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competition=[Competition(id=_rand_id(), competitionName=r.competition_name or "", award=r.award or "",
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awardDate=r.award_date or "",
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description=_build_paragraphs(r.description)) for r in detail.competition],
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)
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def _rollback_key(user_id: int, job_id: int) -> str:
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return f"{ROLLBACK_PREFIX}{user_id}:{job_id}"
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async def save(user_id: int, job_id: int, cr: CustomizeResume) -> None:
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"""保存定制简历：备份旧版本到 Redis 用于回滚 + 写数据库"""
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content = cr.model_dump(by_alias=True)
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async with async_session_factory() as session:
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# 查已有记录，备份旧版本到 Redis 用于回滚
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result = await session.execute(select(UserJobCustomizeResume).where(UserJobCustomizeResume.user_id == user_id, UserJobCustomizeResume.job_id == job_id))
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record = result.scalar_one_or_none()
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if record:
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old_cr = CustomizeResume.model_validate(record.content)
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await RedisManager.client.set(_rollback_key(user_id, job_id), old_cr.model_dump_json(by_alias=True), ex=ROLLBACK_EXPIRE)
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await session.execute(update(UserJobCustomizeResume).where(
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UserJobCustomizeResume.id == record.id).values(content=content))
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else:
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session.add(UserJobCustomizeResume(id=next_id(), user_id=user_id, job_id=job_id, content=content))
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await session.commit()
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async def get(user_id: int, job_id: int) -> dict | None:
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"""查询定制简历，查不到则加载默认简历构建返回"""
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async with async_session_factory() as session:
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result = await session.execute(select(UserJobCustomizeResume).where(
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UserJobCustomizeResume.user_id == user_id, UserJobCustomizeResume.job_id == job_id))
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record = result.scalar_one_or_none()
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if record:
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return CustomizeResume.model_validate(record.content).model_dump(by_alias=True)
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# 没有定制简历，加载默认简历构建
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detail = await load_default_resume_detail(session, user_id)
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return build_from_detail(detail).model_dump(by_alias=True)
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async def rollback(user_id: int, job_id: int) -> None:
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"""回滚定制简历到上一版本：从 Redis 取回滚数据写入数据库"""
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rollback_k = _rollback_key(user_id, job_id)
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data = await RedisManager.client.get(rollback_k)
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if not data:
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raise ValueError("没有可回滚的版本")
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content = CustomizeResume.model_validate_json(data).model_dump(by_alias=True)
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async with async_session_factory() as session:
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result = await session.execute(select(UserJobCustomizeResume).where(
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UserJobCustomizeResume.user_id == user_id, UserJobCustomizeResume.job_id == job_id))
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record = result.scalar_one_or_none()
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if record:
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await session.execute(update(UserJobCustomizeResume).where(
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UserJobCustomizeResume.id == record.id).values(content=content))
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else:
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session.add(UserJobCustomizeResume(id=next_id(), user_id=user_id, job_id=job_id, content=content))
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await session.commit()
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await RedisManager.client.delete(rollback_k)
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