1

PythonProject/api/statistics_api.py

@@ -1,7 +1,7 @@
 from fastapi import APIRouter,Depends
-from dao.statistics_dao import select_all,select_age,select_score,select_avg_score,select_salary,select_days
+from dao.statistics_dao import *
 from schema.student_schema import StudentResponse
-from schema.statistics_schema import AllStuResponse,AvgDayResponse,AcgScoreResponse
+from schema.statistics_schema import *
 from util.database import get_db
 
 StatisticsAPI = APIRouter()
@@ -35,3 +35,9 @@ def get_scores(db=Depends(get_db)):
 def get_days(db=Depends(get_db)):
     l = select_days(db)
     return l
+
+
+@StatisticsAPI.get('/emp',response_model=AllEmpResponse,tags=['统计分析模块'],summary='统计每个学生的就业时长')
+def get_emp(db=Depends(get_db)):
+    l= select_days2(db)
+    return l

PythonProject/dao/statistics_dao.py

@@ -91,3 +91,21 @@ def select_days(db):
     except Exception:
         raise HTTPException(status_code=500, detail="查询异常")
 
+#统计每个学⽣的就业时⻓
+def select_days2(db):
+    try:
+        l2 =db.query(
+                     Employment_info.stu_id
+                    ,Employment_info.employment_opening_date
+                    ,Employment_info.offer_issuance_date
+                       ,func.datediff(
+                                      Employment_info.offer_issuance_date
+                                     ,Employment_info.employment_opening_date
+                                     )
+                      .label("employment_duration_day")
+                    ).filter(
+                             Employment_info.delete_status == 0
+                             ).all()
+        return l2
+    except Exception:
+        raise HTTPException(status_code=500, detail="查询异常")

PythonProject/schema/statistics_schema.py

@@ -1,4 +1,6 @@
-from pydantic import BaseModel
+from pydantic import BaseModel,Field
+from datetime import date
+from typing import List, Optional
 
 class AllStuResponse(BaseModel):
     class_id: int
@@ -13,3 +15,17 @@ class AvgDayResponse(BaseModel):
     class_id: int
     avg_days: str | None
 
+class EmpRequest(BaseModel):
+    stu_id: int
+
+class EmpItem(BaseModel):
+    stu_id: int
+    employment_opening_date:date | None
+    offer_issuance_date:date | None
+    employment_duration_day: int | None
+
+class AllEmpResponse(BaseModel):
+    code: int
+    msg: str
+    data: List[EmpItem]
+