feat(2-2): add example

Author: rgomezcasas

02-demeter_tell_dont_ask/2-tell_dont_ask/example.py

@@ -0,0 +1,21 @@
+from user import User
+
+def bad_example():
+    user = User(1, "Javier", "Ferrer")
+
+    full_name = f"{user.full_name.name.value} {user.full_name.last_name.value}"
+    print(f"User ID: {user.id.value}, Full Name: {full_name}")
+
+
+def good_example():
+    user = User(1, "Javier", "Ferrer")
+
+    print(user.display_information())
+
+
+if __name__ == "__main__":
+    print("Bad example (Ask approach):")
+    bad_example()
+
+    print("\nGood example (Tell approach):")
+    good_example()

02-demeter_tell_dont_ask/2-tell_dont_ask/user.py

@@ -0,0 +1,15 @@
+from user_id import UserId
+from user_name import UserName
+from user_last_name import UserLastName
+from user_full_name import UserFullName
+
+class User:
+    def __init__(self, user_id, name, last_name):
+        self.id = UserId(user_id)
+        self.full_name = UserFullName(
+            UserName(name),
+            UserLastName(last_name)
+        )
+    
+    def display_information(self):
+        return f"User ID: {self.id}, Full Name: {self.full_name}" 

02-demeter_tell_dont_ask/2-tell_dont_ask/user_full_name.py

@@ -0,0 +1,10 @@
+from user_name import UserName
+from user_last_name import UserLastName
+
+class UserFullName:
+    def __init__(self, name, last_name):
+        self.name = name
+        self.last_name = last_name
+
+    def formatted(self):
+        return f"{self.name} {self.last_name}"

02-demeter_tell_dont_ask/2-tell_dont_ask/user_id.py

@@ -0,0 +1,3 @@
+class UserId:
+    def __init__(self, value):
+        self.value = value

02-demeter_tell_dont_ask/2-tell_dont_ask/user_last_name.py

@@ -0,0 +1,3 @@
+class UserLastName:
+    def __init__(self, value):
+        self.value = value

02-demeter_tell_dont_ask/2-tell_dont_ask/user_name.py

@@ -0,0 +1,3 @@
+class UserName:
+    def __init__(self, value):
+        self.value = value