我有两个 Flask-SQLAlchemy 模型和各自的 Flask-Restless API 端点,如下所示:
class Person(db.Model):
person_id = db.Column(db.Integer, primary_key=True)
document = db.Column(db.String(), unique=True)
name = db.Column(db.String(45))
class Student(db.Model):
student_id = db.Column(db.Integer, primary_key=True)
person_id = db.Column(db.Integer, db.ForeignKey('person.person_id'))
code = db.Column(db.String(45))
person = db.relationship('Person', backref=db.backref('students', lazy='dynamic'))
manager.create_api(Person, methods=['GET', 'POST'])
manager.create_api(Student, methods=['GET', 'POST'])
这些 URL 工作正常:
http://localhost:8080/api/person
http://localhost:8080/api/student
但是,当我尝试按照官方文档中的描述对相关模型进行搜索查询时,我得到{ "message": "Unable to construct query" }
了这些请求:
http://localhost:8080/api/person?q={"filters":[{"name":"students__code","op":"eq","val":"1"}]}
http://localhost:8080/api/person?q={"filters":[{"name":"students","op":"has","val":{"name":"code","op":"eq","val":"1"}}]}
http://localhost:8080/api/student?q={"filters":[{"name":"person__document","op":"eq","val":"111"}]}
http://localhost:8080/api/student?q={"filters":[{"name":"person","op":"any","val":{"name":"document","op":"eq","val":"111"}}]}
我正在使用 Flask 0.10.1、Flask-SQLAlchemy 2.0、Flask-Restless 0.17.0、SQLAlchemy 1.0.6 和 Python 2.7。