Add share slug and qr code to order page

app/models/order.py

@@ -1,7 +1,9 @@
-"Script for everything Order related in the database"
+"""Script for everything Order related in the database"""
 import typing
 from collections import defaultdict
 from datetime import datetime
+import secrets
+import string
 
 from hlds.definitions import location_definitions
 from utils import first
@@ -10,8 +12,13 @@ from .database import db
 from .user import User
 
 
+def generate_slug():
+    alphabet = string.ascii_letters + string.digits
+    return ''.join(secrets.choice(alphabet) for i in range(7))
+
+
 class Order(db.Model):
-    "Class used for configuring the Order model in the database"
+    """Class used for configuring the Order model in the database"""
     id = db.Column(db.Integer, primary_key=True)
     courier_id = db.Column(db.Integer, nullable=True)
     location_id = db.Column(db.String(64))
@@ -19,6 +26,7 @@ class Order(db.Model):
     starttime = db.Column(db.DateTime)
     stoptime = db.Column(db.DateTime)
     public = db.Column(db.Boolean, default=True)
+    slug = db.Column(db.String(7), default=generate_slug, unique=True)
 
     items = db.relationship("OrderItem", backref="order", lazy="dynamic")
 
@@ -47,7 +55,7 @@ class Order(db.Model):
         self.location_name = self.location.name
 
     def for_user(self, anon=None, user=None) -> typing.List:
-        "Get the items for a certain user"
+        """Get the items for a certain user"""
         return list(
             filter(
                 (lambda i: i.user == user)
@@ -58,7 +66,7 @@ class Order(db.Model):
         )
 
     def group_by_user(self) -> typing.List[typing.Tuple[str, typing.List]]:
-        "Group items of an Order by user"
+        """Group items of an Order by user"""
         group: typing.Dict[str, typing.List] = {}
 
         # pylint: disable=E1133
@@ -78,7 +86,7 @@ class Order(db.Model):
     ) -> typing.List[
         typing.Tuple[str, int, typing.List[typing.Tuple[str, typing.List]]]
     ]:
-        "Group items of an Order by dish"
+        """Group items of an Order by dish"""
         group: typing.Dict[str, typing.Dict[str, typing.List]] = defaultdict(
             lambda: defaultdict(list)
         )
@@ -101,11 +109,11 @@ class Order(db.Model):
         )
 
     def is_closed(self) -> bool:
-        "Return whether or not the order is closed"
+        """Return whether the order is closed"""
         return self.stoptime and datetime.now() > self.stoptime
 
     def can_close(self, user_id: int) -> bool:
-        "Check if a user can close the Order"
+        """Check if a user can close the Order"""
         if self.stoptime and self.stoptime < datetime.now():
             return False
         user = None

app/models/orderitem.py

@@ -10,7 +10,7 @@ from .user import User
 
 
 class OrderItem(db.Model):
-    "Class used for configuring the OrderItem model in the database"
+    """Class used for configuring the OrderItem model in the database"""
     id = db.Column(db.Integer, primary_key=True)
     order_id = db.Column(db.Integer, db.ForeignKey("order.id"), nullable=False)
     user_id = db.Column(db.Integer, db.ForeignKey("user.id"))
@@ -60,7 +60,7 @@ class OrderItem(db.Model):
 
     # pylint: disable=W0613
     def can_delete(self, order_id: int, user_id: int, name: str) -> bool:
-        "Check if a user can delete an item"
+        """Check if a user can delete an item"""
         if int(self.order_id) != int(order_id):
             return False
         if self.order.is_closed():

app/notification.py

@@ -11,14 +11,14 @@ from models.order import Order
 
 
 def webhook_text(order: Order) -> typing.Optional[str]:
-    "Function that makes the text for the notification"
+    """Function that makes the text for the notification"""
     if order.location_id == "test":
         return None
 
     if order.courier is not None:
         # pylint: disable=C0301, C0209
         return "<!channel|@channel> {3} is going to {1}, order <{0}|here>! Deadline in {2} minutes!".format(
-            url_for("order_bp.order_from_id", order_id=order.id, _external=True),
+            url_for("order_bp.order_from_slug", order_slug=order.slug, _external=True),
             order.location_name,
             remaining_minutes(order.stoptime),
             order.courier.username.title(),
@@ -28,12 +28,12 @@ def webhook_text(order: Order) -> typing.Optional[str]:
     return "<!channel|@channel> New order for {}. Deadline in {} minutes. <{}|Open here.>".format(
         order.location_name,
         remaining_minutes(order.stoptime),
-        url_for("order_bp.order_from_id", order_id=order.id, _external=True),
+        url_for("order_bp.order_from_slug", order_slug=order.slug, _external=True),
     )
 
 
 def post_order_to_webhook(order: Order) -> None:
-    "Function that sends the notification for the order"
+    """Function that sends the notification for the order"""
     message = webhook_text(order)
     if message:
         webhookthread = WebhookSenderThread(message, app.config["SLACK_WEBHOOK"])
@@ -41,7 +41,7 @@ def post_order_to_webhook(order: Order) -> None:
 
 
 class WebhookSenderThread(Thread):
-    "Extension of the Thread class, which sends a webhook for the notification"
+    """Extension of the Thread class, which sends a webhook for the notification"""
 
     def __init__(self, message: str, url: str) -> None:
         super().__init__()
@@ -52,7 +52,7 @@ class WebhookSenderThread(Thread):
         self.slack_webhook()
 
     def slack_webhook(self) -> None:
-        "The webhook for the specified chat platform"
+        """The webhook for the specified chat platform"""
         if self.url:
             requests.post(self.url, json={"text": self.message})
         else:
@@ -60,7 +60,7 @@ class WebhookSenderThread(Thread):
 
 
 def remaining_minutes(value) -> str:
-    "Return the remaining minutes until the deadline of and order"
+    """Return the remaining minutes until the deadline of and order"""
     delta = value - datetime.now()
     if delta.total_seconds() < 0:
         return "0"

app/templates/order.html

@@ -12,10 +12,27 @@
 {% block metas %}
 	{{ super() }}
 	<meta name="robots" content="noindex, nofollow">
+
+	<script type="text/javascript" src="{{ url_for('static', filename='js/jquery.min.js') }}"></script>
+	<script type="text/javascript" src="{{ url_for('static', filename='js/qrcode.min.js') }}"></script>
 {% endblock %}
 
 {% block container %}
-<header>
+<header class="row">
+	<div class="col-md-2" style="padding-top: 2em">
+		<div id="qrcode"></div>
+		<script type="text/javascript">
+			var qrcode = new QRCode(document.getElementById("qrcode"), {
+					text: "{{ url_for("order_bp.order_from_slug", order_slug=order.slug, _external=True) }}",
+					width: 128,
+					height: 128,
+					colorDark : "#000000",
+					colorLight : "#ffffff",
+					correctLevel : QRCode.CorrectLevel.H
+			});
+		</script>
+	</div>
+	<div class="col-md-10">
 		<h2 id="order-title">Order {{ order.id }}</h2>
 
 		<div class="location">
@@ -25,6 +42,10 @@
 				{{ order.location_name }}
 			{% endif %}
 		</div>
+		<div>
+			Unique order link: <code>{{ url_for("order_bp.order_from_slug", order_slug=order.slug, _external=True) }}</code>
+		</div>
+	</div>
 </header>
 
 <section>
@@ -36,7 +57,7 @@
 					{% for item in my_items %}
 					<li class="spacecake">
 						{% if item.can_delete(order.id, current_user.id, session.get('anon_name', '')) -%}
-							<form action="{{ url_for('order_bp.delete_item', order_id=order.id, item_id=item.id) }}" method="post" style="display:inline">
+							<form action="{{ url_for('order_bp.delete_item', order_slug=order.slug, item_id=item.id) }}" method="post" style="display:inline">
 								<button class="btn btn-link btn-sm" type="submit" style="padding: 0 0.5em;"><span class="glyphicon glyphicon-remove"></span></button>
 							</form>
 						{%- endif %}
@@ -65,7 +86,7 @@
 			<h3>Add item to order</h3>
 
 			{% for dish in order.location.dishes %}
-				<form method="post" action="{{ url_for('order_bp.order_item_create', order_id=order.id) }}" id="dish_{{ dish.id }}">
+				<form method="post" action="{{ url_for('order_bp.order_item_create', order_slug=order.slug) }}" id="dish_{{ dish.id }}">
 					{{ form.csrf_token }}
 					<input type="hidden" name="dish_id" value="{{ dish.id }}" />
 
@@ -167,7 +188,7 @@
 					<dd>
 						{% if order.courier == None %}
 							{% if not current_user.is_anonymous() %}
-							<form action="{{ url_for('order_bp.volunteer', order_id=order.id) }}" method="post" style="display:inline">
+							<form action="{{ url_for('order_bp.volunteer', order_slug=order.slug) }}" method="post" style="display:inline">
 								<input type="submit" class="btn btn-primary btn-sm" value="Volunteer"></input>
 							</form>
 							{% else %}No-one yet{% endif %}
@@ -180,12 +201,12 @@
 
 			<div>
 				{% if order.can_close(current_user.id) -%}
-					<form action="{{ url_for('order_bp.close_order', order_id=order.id) }}" method="post" style="display:inline">
+					<form action="{{ url_for('order_bp.close_order', order_slug=order.slug) }}" method="post" style="display:inline">
 						<input type="submit" class="btn btn-danger" value="Close"></input>
 					</form>
 				{% endif %}
 				{% if courier_or_admin %}
-					<a class="btn" href="{{ url_for('order_bp.order_edit', order_id=order.id) }}">Edit</a>
+					<a class="btn" href="{{ url_for('order_bp.order_edit', order_slug=order.slug) }}">Edit</a>
 				{%- endif %}
 			</div>
 		</div>
@@ -258,7 +279,7 @@
 			<div class="footer">
 				Total {{ order.items.count() }} items — {{ total_price|euro }}
 				&nbsp;
-				<a class="btn btn-sm" href="{{ url_for('order_bp.items_shop_view', order_id=order.id) }}">Shop view</a>
+				<a class="btn btn-sm" href="{{ url_for('order_bp.items_shop_view', order_slug=order.slug) }}">Shop view</a>
 			</div>
 		</div>
 	</div>
@@ -290,7 +311,7 @@
 							<li class="{{ 'paid' if item.paid }}">
 								<div class="actions">
 								{% if item.can_delete(order.id, current_user.id, session.get('anon_name', '')) -%}
-									<form action="{{ url_for('order_bp.delete_item', order_id=order.id, item_id=item.id) }}" method="post" style="display:inline">
+									<form action="{{ url_for('order_bp.delete_item', order_slug=order.slug, item_id=item.id) }}" method="post" style="display:inline">
 										<button class="btn btn-link btn-sm" type="submit" style="padding: 0 0.5em;"><span class="glyphicon glyphicon-remove"></span></button>
 									</form>
 								{% else %}

app/templates/order_edit.html

@@ -11,7 +11,7 @@
 				<h3>Edit order</h3>
 				<div class="row darker">
 					<div class="col-sm-12">
-						<form method="post" action="{{ url_for('.order_edit', order_id=order_id) }}">
+						<form method="post" action="{{ url_for('.order_edit', order_slug=order_slug) }}">
 							{{ form.csrf_token }}
 							<div class="form-group select2 {{ 'has-errors' if form.courier_id.errors else ''}}">
 								{{ form.courier_id.label(class='control-label') }}<br>

app/templates/utils.html

@@ -9,7 +9,7 @@
 		{% else %}open{% endif %}<br/>
 	</div>
 	<div class="col-md-4 col-lg-3 expand_button_wrapper">
-		<a class="btn btn-primary btn-block align-bottom expand_button" href="{{ url_for('order_bp.order_from_id', order_id=order.id) }}">Expand</a>
+		<a class="btn btn-primary btn-block align-bottom expand_button" href="{{ url_for('order_bp.order_from_slug', order_slug=order.slug) }}">Expand</a>
 	</div>
 </div>
 {%- endmacro %}

app/views/order.py

@@ -1,4 +1,4 @@
-"Script to generate the order related views of Haldis"
+"""Script to generate the order related views of Haldis"""
 import random
 import typing
 from datetime import datetime
@@ -19,7 +19,7 @@ order_bp = Blueprint("order_bp", "order")
 
 @order_bp.route("/")
 def orders(form: OrderForm = None) -> str:
-    "Generate general order view"
+    """Generate general order view"""
     if form is None and not current_user.is_anonymous():
         form = OrderForm()
         location_id = request.args.get("location_id")
@@ -32,7 +32,7 @@ def orders(form: OrderForm = None) -> str:
 @order_bp.route("/create", methods=["POST"])
 @login_required
 def order_create() -> typing.Union[str, Response]:
-    "Generate order create view"
+    """Generate order create view"""
     orderForm = OrderForm()
     orderForm.populate()
     if orderForm.validate_on_submit():
@@ -42,14 +42,14 @@ def order_create() -> typing.Union[str, Response]:
         db.session.add(order)
         db.session.commit()
         post_order_to_webhook(order)
-        return redirect(url_for("order_bp.order_from_id", order_id=order.id))
+        return redirect(url_for("order_bp.order_from_slug", order_slug=order.slug))
     return orders(form=orderForm)
 
 
-@order_bp.route("/<order_id>")
-def order_from_id(order_id: int, form: OrderForm = None, dish_id=None) -> str:
-    "Generate order view from id"
-    order = Order.query.filter(Order.id == order_id).first()
+@order_bp.route("/<order_slug>")
+def order_from_slug(order_slug: str, form: OrderForm = None, dish_id=None) -> str:
+    """Generate order view from id"""
+    order = Order.query.filter(Order.slug == order_slug).first()
     if order is None:
         abort(404)
     if current_user.is_anonymous() and not order.public:
@@ -76,10 +76,10 @@ def order_from_id(order_id: int, form: OrderForm = None, dish_id=None) -> str:
     )
 
 
-@order_bp.route("/<order_id>/items")
-def items_shop_view(order_id: int) -> str:
-    "Generate order items view from id"
-    order = Order.query.filter(Order.id == order_id).first()
+@order_bp.route("/<order_slug>/items")
+def items_shop_view(order_slug: int) -> str:
+    """Generate order items view from id"""
+    order = Order.query.filter(Order.slug == order_slug).first()
     if order is None:
         abort(404)
     if current_user.is_anonymous() and not order.public:
@@ -89,31 +89,31 @@ def items_shop_view(order_id: int) -> str:
     return render_template("order_items.html", order=order, total_price=total_price)
 
 
-@order_bp.route("/<order_id>/edit", methods=["GET", "POST"])
+@order_bp.route("/<order_slug>/edit", methods=["GET", "POST"])
 @login_required
-def order_edit(order_id: int) -> typing.Union[str, Response]:
-    "Generate order edit view from id"
-    order = Order.query.filter(Order.id == order_id).first()
+def order_edit(order_slug: str) -> typing.Union[str, Response]:
+    """Generate order edit view from id"""
+    order = Order.query.filter(Order.slug == order_slug).first()
     if current_user.id is not order.courier_id and not current_user.is_admin():
         abort(401)
     if order is None:
         abort(404)
-    orderForm = OrderForm(obj=order)
-    orderForm.populate()
-    if orderForm.validate_on_submit():
-        orderForm.populate_obj(order)
+    order_form = OrderForm(obj=order)
+    order_form.populate()
+    if order_form.validate_on_submit():
+        order_form.populate_obj(order)
         order.update_from_hlds()
         db.session.commit()
-        return redirect(url_for("order_bp.order_from_id", order_id=order.id))
-    return render_template("order_edit.html", form=orderForm, order_id=order_id)
+        return redirect(url_for("order_bp.order_from_slug", order_slug=order.slug))
+    return render_template("order_edit.html", form=order_form, order_slug=order.slug)
 
 
-@order_bp.route("/<order_id>/create", methods=["GET", "POST"])
-def order_item_create(order_id: int) -> typing.Any:
+@order_bp.route("/<order_slug>/create", methods=["GET", "POST"])
+def order_item_create(order_slug: str) -> typing.Any:
     # type is 'typing.Union[str, Response]', but this errors due to
     #   https://github.com/python/mypy/issues/7187
-    "Add item to order from id"
-    current_order = Order.query.filter(Order.id == order_id).first()
+    """Add item to order from slug"""
+    current_order = Order.query.filter(Order.slug == order_slug).first()
     if current_order is None:
         abort(404)
     if current_order.is_closed():
@@ -122,7 +122,7 @@ def order_item_create(order_id: int) -> typing.Any:
         flash("Please login to see this order.", "info")
         abort(401)
     location = current_order.location
-    # If location doesn't exist any more, adding items is nonsensical
+    # If location doesn't exist anymore, adding items is nonsensical
     if not location:
         abort(404)
     form = AnonOrderItemForm() if current_user.is_anonymous() else OrderItemForm()
@@ -170,7 +170,7 @@ def order_item_create(order_id: int) -> typing.Any:
             return redirect(
                 url_for(
                     "order_bp.order_item_create",
-                    order_id=order_id,
+                    order_slug=current_order.slug,
                     dish=form.dish_id.data,
                     user_name=user_name,
                     comment=comment,
@@ -179,14 +179,13 @@ def order_item_create(order_id: int) -> typing.Any:
 
     # If the form was not submitted (GET request) or the form had errors: show form again
     if not form.validate_on_submit():
-        return order_from_id(order_id, form=form, dish_id=dish_id)
+        return order_from_slug(current_order.slug, form=form, dish_id=dish_id)
 
     # Form was submitted and is valid
-
     item = OrderItem()
     form.populate_obj(item)
     item.hlds_data_version = location_definition_version
-    item.order_id = order_id
+    item.order_id = current_order.id
     if not current_user.is_anonymous():
         item.user_id = current_user.id
     else:
@@ -221,59 +220,61 @@ def order_item_create(order_id: int) -> typing.Any:
 
     db.session.add(item)
     db.session.commit()
-    flash("Ordered %s" % (item.dish_name), "success")
-    return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+    flash("Ordered %s" % item.dish_name, "success")
+    return redirect(url_for("order_bp.order_from_slug", order_slug=order_slug))
 
 
-@order_bp.route("/<order_id>/<user_name>/user_paid", methods=["POST"])
+@order_bp.route("/<order_slug>/<user_name>/user_paid", methods=["POST"])
 @login_required
 # pylint: disable=R1710
-def items_user_paid(order_id: int, user_name: str) -> typing.Optional[Response]:
-    "Indicate payment status for a user in an order"
+def items_user_paid(order_slug: str, user_name: str) -> typing.Optional[Response]:
+    """Indicate payment status for a user in an order"""
     user = User.query.filter(User.username == user_name).first()
+    order = Order.query.filter(Order.slug == order_slug).first()
     items: typing.List[OrderItem] = []
     if user:
         items = OrderItem.query.filter(
-            (OrderItem.user_id == user.id) & (OrderItem.order_id == order_id)
+            (OrderItem.user_id == user.id) & (OrderItem.order_id == order.id)
         ).all()
     else:
         items = OrderItem.query.filter(
-            (OrderItem.user_name == user_name) & (OrderItem.order_id == order_id)
+            (OrderItem.user_name == user_name) & (OrderItem.order_id == order.id)
         ).all()
-    current_order = Order.query.filter(Order.id == order_id).first()
+    current_order = Order.query.filter(Order.id == order.id).first()
     if current_order.courier_id == current_user.id or current_user.admin:
         for item in items:
             item.paid = True
         db.session.commit()
         flash("Paid %d items for %s" % (len(items), item.for_name), "success")
-        return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+        return redirect(url_for("order_bp.order_from_slug", order_slug=order_slug))
     abort(404)
 
 
-@order_bp.route("/<order_id>/<item_id>/delete", methods=["POST"])
+@order_bp.route("/<order_slug>/<item_id>/delete", methods=["POST"])
 # pylint: disable=R1710
-def delete_item(order_id: int, item_id: int) -> typing.Any:
+def delete_item(order_slug: str, item_id: int) -> typing.Any:
     # type is 'typing.Optional[Response]', but this errors due to
     #   https://github.com/python/mypy/issues/7187
-    "Delete an item from an order"
-    item = OrderItem.query.filter(OrderItem.id == item_id).first()
+    """Delete an item from an order"""
+    item: OrderItem = OrderItem.query.filter(OrderItem.id == item_id).first()
+    order: Order = Order.query.filter(Order.slug == order_slug).first()
     user_id = None
     if not current_user.is_anonymous():
         user_id = current_user.id
-    if item.can_delete(order_id, user_id, session.get("anon_name", "")):
+    if item.can_delete(order.id, user_id, session.get("anon_name", "")):
         dish_name = item.dish_name
         db.session.delete(item)
         db.session.commit()
-        flash("Deleted %s" % (dish_name), "success")
-        return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+        flash("Deleted %s" % dish_name, "success")
+        return redirect(url_for("order_bp.order_from_slug", order_slug=order_slug))
     abort(404)
 
 
-@order_bp.route("/<order_id>/volunteer", methods=["POST"])
+@order_bp.route("/<order_slug>/volunteer", methods=["POST"])
 @login_required
-def volunteer(order_id: int) -> Response:
-    "Add a volunteer to an order"
-    order = Order.query.filter(Order.id == order_id).first()
+def volunteer(order_slug: str) -> Response:
+    """Add a volunteer to an order"""
+    order = Order.query.filter(Order.slug == order_slug).first()
     if order is None:
         abort(404)
     if order.courier_id is None or order.courier_id == 0:
@@ -282,14 +283,14 @@ def volunteer(order_id: int) -> Response:
         flash("Thank you for volunteering!")
     else:
         flash("Volunteering not possible!")
-    return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+    return redirect(url_for("order_bp.order_from_slug", order_slug=order.slug))
 
 
-@order_bp.route("/<order_id>/close", methods=["POST"])
+@order_bp.route("/<order_slug>/close", methods=["POST"])
 @login_required
-def close_order(order_id: int) -> typing.Optional[Response]:
-    "Close an order"
-    order = Order.query.filter(Order.id == order_id).first()
+def close_order(order_slug: str) -> typing.Optional[Response]:
+    """Close an order"""
+    order = Order.query.filter(Order.slug == order_slug).first()
     if order is None:
         abort(404)
     if (
@@ -301,12 +302,12 @@ def close_order(order_id: int) -> typing.Optional[Response]:
             if courier is not None:
                 order.courier_id = courier.id
         db.session.commit()
-        return redirect(url_for("order_bp.order_from_id", order_id=order_id))
+        return redirect(url_for("order_bp.order_from_slug", order_slug=order_slug))
     return None
 
 
 def select_user(items) -> typing.Optional[User]:
-    "Select a random user from those who are signed up for the order"
+    """Select a random user from those who are signed up for the order"""
     user = None
     # remove non users
     items = [i for i in items if i.user_id]
@@ -325,7 +326,7 @@ def select_user(items) -> typing.Optional[User]:
 
 
 def get_orders(expression=None) -> typing.List[Order]:
-    "Give the list of all currently open and public Orders"
+    """Give the list of all currently open and public Orders"""
     order_list: typing.List[OrderForm] = []
     if expression is None:
         expression = (datetime.now() > Order.starttime) & (