98 lines
4.1 KiB
Python
98 lines
4.1 KiB
Python
from sqlalchemy.orm import Session
|
|
from models.employment import Employment
|
|
from schemas.employment import EmploymentCreate, EmploymentUpdate, EmploymentResponse
|
|
|
|
|
|
def create_employment(db, obj_in):
|
|
"""新增就业信息：一个学生只能存在一条就业记录"""
|
|
try:
|
|
db_obj = Employment(**obj_in.model_dump())
|
|
db.add(db_obj) # add：把对象加入数据库会话，此时还没写入数据库
|
|
db.commit() # commit：提交事务，真正写入mysql数据库
|
|
db.refresh(db_obj) # refresh：从数据库刷新对象，拿到数据库自动生成的id、默认时间等字段
|
|
return EmploymentResponse.model_validate(db_obj).model_dump()
|
|
# model_validate：把sqlalchemy ORM对象解析进pydantic响应模型
|
|
except Exception:
|
|
db.rollback()
|
|
return None
|
|
|
|
|
|
def get_employment_by_id(db, eid):
|
|
"""根据主键id查询就业详情，过滤逻辑删除"""
|
|
try:
|
|
db_obj = db.query(Employment).filter(Employment.id == eid
|
|
,Employment.is_deleted == 0).first()
|
|
if not db_obj:
|
|
return None
|
|
return EmploymentResponse.model_validate(db_obj).model_dump()
|
|
except Exception:
|
|
return None
|
|
|
|
|
|
def get_employment_by_student_id(db, student_id):
|
|
"""根据学生id查询就业信息，过滤逻辑删除"""
|
|
try:
|
|
db_obj = db.query(Employment).filter(Employment.student_id == student_id
|
|
,Employment.is_deleted == 0).first()
|
|
if not db_obj:
|
|
return None
|
|
return EmploymentResponse.model_validate(db_obj).model_dump()
|
|
except Exception:
|
|
return None
|
|
|
|
|
|
def get_employment_list(db, company_name=None, salary_min=None, salary_max=None, skip=0, limit=20):
|
|
"""就业列表查询；支持公司名模糊、薪资范围筛选；只查询is_deleted=0"""
|
|
try:
|
|
query = db.query(Employment).filter(Employment.is_deleted == 0)
|
|
if company_name:
|
|
query = query.filter(Employment.company_name.like(f"%{company_name}%"))
|
|
if salary_min is not None:
|
|
query = query.filter(Employment.salary >= salary_min)
|
|
if salary_max is not None:
|
|
query = query.filter(Employment.salary <= salary_max)
|
|
# count()统计满足条件总条数，用于分页total
|
|
total = query.count()
|
|
# offset偏移量（跳过多少条），limit每页多少条，执行查询拿到结果列表
|
|
records = query.offset(skip).limit(limit).all()
|
|
# 列表推导式：循环每一条ORM记录，全部转为字典，得到字典列表
|
|
dict_list = [EmploymentResponse.model_validate(item).model_dump() for item in records]
|
|
# 返回字典列表 + 总条数
|
|
return dict_list, total
|
|
except Exception:
|
|
# 异常返回空列表，总条数0
|
|
return [], 0
|
|
|
|
|
|
def update_employment(db, eid, obj_in):
|
|
"""修改就业信息，只更新传入的字段"""
|
|
try:
|
|
db_obj_raw = db.query(Employment).filter(Employment.id == eid
|
|
,Employment.is_deleted == 0).first()
|
|
if db_obj_raw is None:
|
|
return None
|
|
update_dict = obj_in.model_dump(exclude_unset=True)# exclude_unset=True：只取出前端实际传过来的字段，不会带上没传的None字段
|
|
for key, value in update_dict.items():
|
|
setattr(db_obj_raw, key, value)
|
|
db.commit()
|
|
db.refresh(db_obj_raw)
|
|
return EmploymentResponse.model_validate(db_obj_raw).model_dump()
|
|
except Exception:
|
|
db.rollback()
|
|
return None
|
|
|
|
|
|
def delete_employment_logic(db, eid):
|
|
"""逻辑删除，只修改is_deleted=1，不做物理删除"""
|
|
try:
|
|
db_obj_raw = db.query(Employment).filter(Employment.id == eid
|
|
,Employment.is_deleted == 0).first()
|
|
if db_obj_raw is None:
|
|
return False
|
|
db_obj_raw.is_deleted = 1
|
|
db.commit()
|
|
return True
|
|
except Exception:
|
|
db.rollback()
|
|
return False
|