Add BinaryField demo to example app

Author: insspb

example_app/app.py

@@ -3,6 +3,7 @@
 from pymongo import monitoring
 
 from example_app import views
+from example_app.binary_demo import binary_demo_view
 from example_app.boolean_demo import boolean_demo_view
 from example_app.dates_demo import dates_demo_view
 from example_app.dict_demo import dict_demo_view
@@ -55,6 +56,8 @@
 app.add_url_rule("/bool/<pk>/", view_func=boolean_demo_view, methods=["GET", "POST"])
 app.add_url_rule("/dict", view_func=dict_demo_view, methods=["GET", "POST"])
 app.add_url_rule("/dict/<pk>/", view_func=dict_demo_view, methods=["GET", "POST"])
+app.add_url_rule("/binary", view_func=binary_demo_view, methods=["GET", "POST"])
+app.add_url_rule("/binary/<pk>/", view_func=binary_demo_view, methods=["GET", "POST"])
 
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=8000)

example_app/binary_demo.py

@@ -0,0 +1,17 @@
+"""Strings and strings related fields demo model."""
+
+from example_app.models import db
+
+
+class BinaryDemoModel(db.Document):
+    """Documentation example model."""
+
+    string_field = db.StringField()
+    binary_field = db.BinaryField()
+
+
+def binary_demo_view(pk=None):
+    """Return all fields demonstration."""
+    from example_app.views import demo_view
+
+    return demo_view(model=BinaryDemoModel, view_name=binary_demo_view.__name__, pk=pk)

example_app/templates/layout.html

@@ -23,6 +23,7 @@
     <li><a href="{{ url_for("dates_demo_view") }}">DateTime demo</a></li>
     <li><a href="{{ url_for("boolean_demo_view") }}">Booleans demo</a></li>
     <li><a href="{{ url_for("dict_demo_view") }}">Dict/Json demo</a></li>
+    <li><a href="{{ url_for("binary_demo_view") }}">Binary demo</a></li>
   </ul>
 </nav>
 <div>

example_app/views.py

@@ -4,6 +4,7 @@
 from mongoengine.context_managers import switch_db
 
 from example_app import models
+from example_app.binary_demo import BinaryDemoModel
 from example_app.boolean_demo import BooleanDemoModel
 from example_app.dates_demo import DateTimeModel
 from example_app.dict_demo import DictDemoModel
@@ -57,6 +58,7 @@ def delete_data():
         DictDemoModel.objects().delete()
         StringsDemoModel.objects().delete()
         NumbersDemoModel.objects().delete()
+        BinaryDemoModel.objects().delete()
     with switch_db(models.Todo, "secondary"):
         models.Todo.objects().delete()