SQLAlchemy part 2 updates

mariadb_python_sqlalchemy/part_2/contact_details.py

@@ -10,7 +10,7 @@ class ContactDetails(Base):
     phone_number = Column(String(length=12))
     address = Column(String(length=100))
     employee_id = Column(Integer, ForeignKey('employees.id'))
-    employee = relationship("Employee", backref=backref("contact_details", uselist=False))
+    employee = relationship("Employee", back_populates="contact_details")
 
     def __init__(self, phone_number, address, employee):
         self.phone_number = phone_number

mariadb_python_sqlalchemy/part_2/employee.py

@@ -12,8 +12,7 @@ class Employee(Base):
     lastname = Column(String(length=100))
     active = Column(Boolean, default=True)
     department = relationship("Department", back_populates="employees")
-    
-    #contact_details = relationship("ContactDetails", backref=backref("contact_details", uselist=False))
+    contact_details = relationship("ContactDetails", uselist=False, back_populates="employee")
     
     def __init__(self, firstname, lastname, department):
         self.firstname = firstname

mariadb_python_sqlalchemy/part_2/load.py

@@ -34,11 +34,11 @@ project_2.employees = [emp_jack,emp_ben,emp_sun]
 project_3.employees = [emp_john,emp_kate,emp_jack,emp_ben,emp_sun]
 
 # Create contact details
-cd_john = ContactDetails("417 315 2531", "123 S Main ST", emp_john)
-cd_kate = ContactDetails("417 315 2533", "124 S Main ST", emp_kate)
-cd_jack = ContactDetails("417 315 2534", "125 S Main ST", emp_jack)
-cd_ben = ContactDetails("417 315 2535", "126 S Main ST", emp_ben)
-cd_sun = ContactDetails("417 315 2536", "127 S Main ST", emp_sun)
+cd_john = ContactDetails("417-315-2531", "123 S Main ST", emp_john)
+cd_kate = ContactDetails("816-315-2533", "124 S Main ST", emp_kate)
+cd_jack = ContactDetails("773-315-2534", "125 S Main ST", emp_jack)
+cd_ben = ContactDetails("518-315-2535", "126 S Main ST", emp_ben)
+cd_sun = ContactDetails("913-315-2536", "127 S Main ST", emp_sun)
 
 
 # Persist data

mariadb_python_sqlalchemy/part_2/query.py

@@ -2,9 +2,18 @@ from base import Session
 from project import Project
 from employee import Employee
 from department import Department
+from contact_details import ContactDetails
 
 session = Session()
 
+# Get all employees
+
+employees = session.query(Employee).all()
+
+print('### Employees ###')
+for employee in employees:
+    print(f'  - {employee.firstname} {employee.lastname}, phone: {employee.contact_details.phone_number}')
+
 # Get all projects
 projects = session.query(Project).all()