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Use back_populates instead of backref

This commit is contained in:
Mo 2022-05-16 17:16:42 +02:00
parent d2a0700f7d
commit 3022c377b4

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@ -44,7 +44,7 @@ class Student(db.Model):
bachelor_thesis_work_group = db.Column(db.String, nullable=True)
note = db.Column(db.Text, nullable=True)
part_students = db.relationship("PartStudent", backref="student", lazy=True)
part_students = db.relationship("PartStudent", back_populates="student", lazy=True)
def repr(self):
return f"{self.first_name} {self.last_name}"
@ -63,10 +63,13 @@ class PartStudent(db.Model):
)
student_id = db.Column(db.Integer, db.ForeignKey("student.id"), nullable=False)
student = db.relationship("Student", back_populates="part_students")
part_id = db.Column(db.Integer, db.ForeignKey("part.id"), nullable=False)
part = db.relationship("Part", back_populates="part_students")
group_id = db.Column(db.Integer, db.ForeignKey("group.id"), nullable=True)
group = db.relationship("Group", back_populates="part_students")
experiment_marks = db.relationship("ExperimentMark", backref="part_student", lazy=True)
experiment_marks = db.relationship("ExperimentMark", back_populates="part_student", lazy=True)
__table_args__ = (
db.UniqueConstraint(student_id, part_id),
@ -142,10 +145,12 @@ class Group(db.Model):
number = db.Column(db.Integer, db.CheckConstraint(f"number >= {MIN_GROUP_NUMBER}"), nullable=False)
semester_id = db.Column(db.Integer, db.ForeignKey("semester.id"), nullable=False)
semester = db.relationship("Semester", back_populates="groups")
program_id = db.Column(db.Integer, db.ForeignKey("program.id"), nullable=False)
program = db.relationship("Program", back_populates="groups")
part_students = db.relationship("PartStudent", backref="group", lazy=True)
group_experiments = db.relationship("GroupExperiment", backref="group", lazy=True)
part_students = db.relationship("PartStudent", back_populates="group", lazy=True)
group_experiments = db.relationship("GroupExperiment", back_populates="group", lazy=True)
__table_args__ = (db.UniqueConstraint(number, semester_id, program_id),)
@ -195,10 +200,12 @@ class GroupExperiment(db.Model):
id = db.Column(db.Integer, primary_key=True)
semester_experiment_id = db.Column(db.Integer, db.ForeignKey("semester_experiment.id"), nullable=False)
semester_experiment = db.relationship("SemesterExperiment", back_populates="group_experiments")
group_id = db.Column(db.Integer, db.ForeignKey("group.id"), nullable=False)
group = db.relationship("Group", back_populates="group_experiments")
appointments = db.relationship("Appointment", backref="group_experiment", lazy=True)
experiment_marks = db.relationship("ExperimentMark", backref="group_experiment", lazy=True)
appointments = db.relationship("Appointment", back_populates="group_experiment", lazy=True)
experiment_marks = db.relationship("ExperimentMark", back_populates="group_experiment", lazy=True)
__table_args__ = (db.UniqueConstraint(semester_experiment_id, group_id),)
@ -242,8 +249,9 @@ class Experiment(db.Model):
active = db.Column(db.Boolean, default=True, nullable=False)
program_id = db.Column(db.Integer, db.ForeignKey("program.id"), nullable=False)
program = db.relationship("Program", back_populates="experiments")
semester_experiments = db.relationship("SemesterExperiment", backref="experiment", lazy=True)
semester_experiments = db.relationship("SemesterExperiment", back_populates="experiment", lazy=True)
__table_args__ = (db.UniqueConstraint(number, program_id),)
@ -285,12 +293,14 @@ class SemesterExperiment(db.Model):
)
experiment_id = db.Column(db.Integer, db.ForeignKey("experiment.id"), nullable=False)
experiment = db.relationship("Experiment", back_populates="semester_experiments")
semester_id = db.Column(db.Integer, db.ForeignKey("semester.id"), nullable=False)
semester = db.relationship("Semester", back_populates="semester_experiments")
assistants = db.relationship(
"Assistant", secondary=experiment_assistant, lazy=True, backref=db.backref("semester_experiments", lazy=True)
"Assistant", secondary=experiment_assistant, back_populates="semester_experiments", lazy=True
)
group_experiments = db.relationship("GroupExperiment", backref="semester_experiment", lazy=True)
group_experiments = db.relationship("GroupExperiment", back_populates="semester_experiment", lazy=True)
__table_args__ = (db.UniqueConstraint(experiment_id, semester_id),)
@ -328,9 +338,13 @@ class Assistant(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, db.ForeignKey("user.id"), nullable=False, unique=True)
user = db.relationship("User", back_populates="assistant")
appointments = db.relationship("Appointment", backref="assistant", lazy=True)
experiment_marks = db.relationship("ExperimentMark", backref="assistant", lazy=True)
semester_experiments = db.relationship(
"SemesterExperiment", secondary=experiment_assistant, back_populates="assistants", lazy=True
)
appointments = db.relationship("Appointment", back_populates="assistant", lazy=True)
experiment_marks = db.relationship("ExperimentMark", back_populates="assistant", lazy=True)
def repr(self):
return f"{self.user.first_name} {self.user.last_name}"
@ -343,8 +357,9 @@ class Admin(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, db.ForeignKey("user.id"), nullable=False, unique=True)
user = db.relationship("User", back_populates="admin")
experiment_marks = db.relationship("ExperimentMark", backref="admin", lazy=True)
experiment_marks = db.relationship("ExperimentMark", back_populates="admin", lazy=True)
def repr(self):
return f"{self.user.first_name} {self.user.last_name}"
@ -359,7 +374,9 @@ class Appointment(db.Model):
special = db.Column(db.Boolean, default=False, nullable=False) # In the break or not
group_experiment_id = db.Column(db.Integer, db.ForeignKey("group_experiment.id"), nullable=False)
group_experiment = db.relationship("GroupExperiment", back_populates="appointments")
assistant_id = db.Column(db.Integer, db.ForeignKey("assistant.id"), nullable=False)
assistant = db.relationship("Assistant", back_populates="appointments")
def checkAndGetAssistant(groupExperiment, assistant=None):
semesterExperiment = groupExperiment.semester_experiment
@ -403,9 +420,11 @@ class Part(db.Model):
number = db.Column(db.Integer, db.CheckConstraint(f"number >= {MIN_PART_NUMBER}"), nullable=False)
program_id = db.Column(db.Integer, db.ForeignKey("program.id"), nullable=False)
program = db.relationship("Program", back_populates="parts")
semester_id = db.Column(db.Integer, db.ForeignKey("semester.id"), nullable=False)
semester = db.relationship("Semester", back_populates="parts")
part_students = db.relationship("PartStudent", backref="part", lazy=True)
part_students = db.relationship("PartStudent", back_populates="part", lazy=True)
__table_args__ = (db.UniqueConstraint(program_id, number, semester_id),)
@ -421,10 +440,10 @@ class Semester(db.Model):
label = db.Column(db.String(10), db.CheckConstraint("label IN ('WS', 'SS')"), nullable=False)
year = db.Column(db.Integer, db.CheckConstraint(f"year BETWEEN {MIN_YEAR} AND {MAX_YEAR}"), nullable=False)
parts = db.relationship("Part", backref="semester", lazy=True)
semester_experiments = db.relationship("SemesterExperiment", backref="semester", lazy=True)
active_users = db.relationship("User", backref="active_semester", lazy=True)
groups = db.relationship("Group", backref="semester", lazy=True)
parts = db.relationship("Part", back_populates="semester", lazy=True)
semester_experiments = db.relationship("SemesterExperiment", back_populates="semester", lazy=True)
active_users = db.relationship("User", back_populates="active_semester", lazy=True)
groups = db.relationship("Group", back_populates="semester", lazy=True)
__table_args__ = (db.UniqueConstraint(label, year),)
@ -504,11 +523,15 @@ class ExperimentMark(db.Model):
)
part_student_id = db.Column(db.Integer, db.ForeignKey("part_student.id"), nullable=False)
part_student = db.relationship("PartStudent", back_populates="experiment_marks")
group_experiment_id = db.Column(db.Integer, db.ForeignKey("group_experiment.id"), nullable=False)
group_experiment = db.relationship("GroupExperiment", back_populates="experiment_marks")
assistant_id = db.Column(
db.Integer, db.ForeignKey("assistant.id"), nullable=True
) # The last assistant who edited the mark
assistant = db.relationship("Assistant", back_populates="experiment_marks")
admin_id = db.Column(db.Integer, db.ForeignKey("admin.id"), nullable=True) # The last admin who edited the mark
admin = db.relationship("Admin", back_populates="experiment_marks")
__table_args__ = (db.UniqueConstraint(part_student_id, group_experiment_id),)
@ -548,9 +571,10 @@ class User(db.Model, FsUserMixin):
room = db.Column(db.String(100), nullable=True)
active_semester_id = db.Column(db.Integer, db.ForeignKey("semester.id"), nullable=True)
active_semester = db.relationship("Semester", back_populates="active_users")
admin = db.relationship("Admin", backref="user", lazy=False, uselist=False)
assistant = db.relationship("Assistant", backref="user", lazy=True, uselist=False)
admin = db.relationship("Admin", back_populates="user", lazy=False, uselist=False)
assistant = db.relationship("Assistant", back_populates="user", lazy=True, uselist=False)
def repr(self):
return f"{self.first_name} {self.last_name}"
@ -571,9 +595,9 @@ class Program(db.Model):
id = db.Column(db.Integer, primary_key=True)
label = db.Column(db.String(25), nullable=False, unique=True)
parts = db.relationship("Part", backref="program", lazy=True)
experiments = db.relationship("Experiment", backref="program", lazy=True)
groups = db.relationship("Group", backref="program", lazy=True)
parts = db.relationship("Part", back_populates="program", lazy=True)
experiments = db.relationship("Experiment", back_populates="program", lazy=True)
groups = db.relationship("Group", back_populates="program", lazy=True)
def repr(self):
return f"{self.label}"