Dealership with engine embedded in car document.

Author: mikeckennedy

.gitignore

@@ -106,3 +106,4 @@ src/07_mongoengine/service_central/.idea/misc.xml
 src/07_mongoengine/service_central/.idea/modules.xml
 src/07_mongoengine/service_central/.idea/service_central.iml
 src/07_mongoengine/service_central/.idea/inspectionProfiles/profiles_settings.xml
+screencaster.xml

src/07_mongoengine/service_central/nosql/car.py

@@ -0,0 +1,20 @@
+import uuid
+import mongoengine
+
+from nosql.engine import Engine
+
+
+class Car(mongoengine.Document):
+    model = mongoengine.StringField(required=True)
+    make = mongoengine.StringField(required=True)
+    year = mongoengine.IntField(required=True)
+    mileage = mongoengine.FloatField(default=0.0)
+    vi_number = mongoengine.StringField(
+        default=lambda: str(uuid.uuid4()).replace('-', ''))
+
+    engine = mongoengine.EmbeddedDocumentField(Engine, required=True)
+
+    meta = {
+        'db_alias': 'core',
+        'collection': 'cars',
+    }

src/07_mongoengine/service_central/nosql/engine.py

@@ -0,0 +1,11 @@
+import uuid
+import mongoengine
+
+
+class Engine(mongoengine.EmbeddedDocument):
+    horsepower = mongoengine.IntField(required=True)
+    liters = mongoengine.FloatField(required=True)
+    mpg = mongoengine.FloatField(required=True)
+    serial_number = mongoengine.StringField(
+        default=lambda: str(uuid.uuid4())
+    )

src/07_mongoengine/service_central/nosql/mongo_setup.py

@@ -0,0 +1,5 @@
+import mongoengine
+
+
+def global_init():
+    mongoengine.register_connection(alias='core', name='demo_dealership')

src/07_mongoengine/service_central/service_app.py

@@ -1,5 +1,11 @@
+import nosql.mongo_setup as mongo_setup
+from nosql.car import Car
+from nosql.engine import Engine
+
+
 def main():
     print_header()
+    config_mongo()
     user_loop()
 
 
@@ -13,6 +19,10 @@ def print_header():
     print()
 
 
+def config_mongo():
+    mongo_setup.global_init()
+
+
 def user_loop():
     while True:
         print("Available actions:")
@@ -37,7 +47,23 @@ def user_loop():
 
 
 def add_car():
-    print("TODO: add_car")
+    model = input("What is the model? ")
+    make = 'Ferrari' # input("What is the make? ")
+    year = int(input("Year built? "))
+
+    car = Car()
+    car.year = year
+    car.make = make
+    car.model = model
+
+    engine = Engine()
+    engine.horsepower = 590
+    engine.mpg = 22
+    engine.liters = 4.0
+
+    car.engine = engine
+
+    car.save()
 
 
 def list_cars():