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我添加了一個Post方法的檢查,只允許約會在不同的日期通過,但我不知道如何返回錯誤消息。這裏的代碼如何在Flask-resful中返回錯誤消息?
from flask_restful import Resource, Api, request
from package.model import conn
class Appointments(Resource):
def get(self):
appointment = conn.execute("SELECT p.*,d.*,a.* from appointment a LEFT JOIN patient p ON a.pat_id = p.pat_id LEFT JOIN doctor d ON a.doc_id = d.doc_id ORDER BY appointment_date DESC").fetchall()
return appointment
def post(self):
appointment = request.get_json(force=True)
pat_id = appointment['pat_id']
doc_id = appointment['doc_id']
appointment_date = appointment['appointment_date']
a = conn.execute("SELECT count(*) From appointment WHERE doc_id =?
AND appointment_date=?",(doc_id,appointment_date,)).fetchone()
if a['count(*)'] == 0:
appointment['app_id'] = conn.execute('''INSERT INTO appointment(pat_id,doc_id,appointment_date)VALUES(?,?,?)''', (pat_id, doc_id,appointment_date)).lastrowid
conn.commit()
return appointment
else:
pass
我該如何返回,而不是通過聲明?
PS:對於情況下,我想提高https://github.com/tushariscoolster/HospitalManagementSystem