我有一个有效的 SQL 存储过程,并在 Python 中设置了 Flask-sqlAlchemy 并连接到我的 MySQL 数据库。我正在尝试构建一个简单的 API,它将接受通过 URL 请求输入的 6-7 个请求参数,并将这些参数发送到我的调用过程,并根据在数据库表中插入新记录的存储过程相应地更新数据库( sp 是下面的“add_spotting”)。
我试图通过 POST 方法来执行此操作,并相信我正在正确接收请求参数参数并调用该过程,但我不确定如何执行这些过程并实际注入(inject)到数据库。
class Spotting(mysql.Model):
__tablename__ = 'spotting'
spotting_id = mysql.Column(mysql.Integer, primary_key = True)
animal_id = mysql.Column(mysql.Integer, mysql.ForeignKey('animal.animal_id'), nullable=False)
user_id = mysql.Column(mysql.Integer, mysql.ForeignKey('user.user_id'), nullable=False)
trail_id = mysql.Column(mysql.Integer, mysql.ForeignKey('trail.trail_id'), nullable=False)
quantity = mysql.Column(mysql.Integer, nullable = False)
lat = mysql.Column(mysql.Float, nullable=True)
lon = mysql.Column(mysql.Float, nullable=True)
description = mysql.Column(mysql.String(250), nullable=False)
#Post method
@application.route('/spotting', methods=['POST'])
def postSpotting():
animal = request.args.get('animal')
user = request.args.get('user')
trail = request.args.get('trail')
quantity = request.args.get('quantity')
lat = request.args.get('lat')
lon = request.args.get('lon')
desc = request.args.get('desc')
proc_call = "call add_spotting('" + animal + "','"+ user + "','" + trail + \
"','" + quantity + "','" + lat + "','" + lon + "','" + desc + "')"
mysql.engine.execute(proc_call)
### Here I want to post and commit this to the MySQL DB via the stored proc and return a message such as
# ## 'Spotting successfully added'
return ("Successfully posted!")
最佳答案
如果您只想使用您提供的代码测试 POST
请求,则可以简单地使用数据库模型对象来填充它:
#Post method
@application.route('/spotting', methods=['POST'])
def postSpotting():
animal = request.args.get('animal')
user = request.args.get('user')
trail = request.args.get('trail')
quantity = request.args.get('quantity')
lat = request.args.get('lat')
lon = request.args.get('lon')
desc = request.args.get('desc')
proc_call = "call add_spotting('" + animal + "','"+ user + "','" + trail + \
"','" + quantity + "','" + lat + "','" + lon + "','" + desc + "')"
mysql.engine.execute(proc_call)
### create a new instance of your model
new_post = Post()
new_post.lat = lat
new_post.lon = lon
... #etc
### commit your changes
session = db.session
session.add(new_post)
db.session.commit()
# ## 'Spotting successfully added'
return ("Successfully posted!")
话虽如此,我要指出两件事:
通过 url 参数插入数据时,您应该小心。更推荐的方法是将
数据
传递给您的POST
请求,并可能通过表单或身份验证进行验证您可以为模型类创建启动器,以便更轻松地插入数据。例如:
class Spotting(mysql.Model):
__tablename__ = 'spotting'
spotting_id = mysql.Column(mysql.Integer, primary_key = True)
animal_id = mysql.Column(mysql.Integer, mysql.ForeignKey('animal.animal_id'), nullable=False)
user_id = mysql.Column(mysql.Integer, mysql.ForeignKey('user.user_id'), nullable=False)
trail_id = mysql.Column(mysql.Integer, mysql.ForeignKey('trail.trail_id'), nullable=False)
quantity = mysql.Column(mysql.Integer, nullable = False)
lat = mysql.Column(mysql.Float, nullable=True)
lon = mysql.Column(mysql.Float, nullable=True)
description = mysql.Column(mysql.String(250), nullable=False)
def __init__(self, lat, lon): #etc
self.lat = lat
self.lon = lon
## etc
db.session.add(self)
db.session.commit()
关于python - 使用 Flask-SQLAlchemy 中的存储过程调用将 POST 方法发送到 SQL,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/57262157/