Add price range on location view

app/app.py

@@ -18,7 +18,7 @@ from flask_script import Manager, Server
 from login import init_login
 from models import db
 from models.anonymous_user import AnonymouseUser
-from utils import euro_string
+from utils import euro_string, price_range_string
 from zeus import init_oauth
 
 
@@ -159,15 +159,11 @@ def add_template_filters(app: Flask) -> None:
         return time
 
     @app.template_filter("year")
-    def current_year(value: typing.Any) -> str:  # pylint: disable=W0613
-        "A function which returns the current year"
+    def current_year(_value: typing.Any) -> str:
         return str(datetime.now().year)
 
-    @app.template_filter("euro")
-    def euro(value: int) -> str:
-        "A function which converts a value to its euro_string"
-        return euro_string(value)
-
+    app.template_filter("euro")(euro_string)
+    app.template_filter("price_range")(price_range_string)
     app.template_filter("any")(any)
 
 

app/forms.py

@@ -9,7 +9,7 @@ from flask_wtf import FlaskForm as Form
 from wtforms import (DateTimeField, SelectField, SelectMultipleField, StringField, SubmitField,
                      FieldList, validators)
 
-from utils import euro_string
+from utils import euro_string, price_range_string
 from hlds.definitions import location_definitions
 from hlds.models import Location, Dish, Choice
 from models import User
@@ -53,16 +53,9 @@ class OrderItemForm(Form):
     comment = StringField("Comment")
     submit_button = SubmitField("Submit")
 
-    @staticmethod
-    def format_price_range(price_range):
-        if price_range[0] == price_range[1]:
-            return euro_string(price_range[0])
-        else:
-            return "from {}".format(euro_string(price_range[0]))
-
     def populate(self, location: Location) -> None:
         self.dish_id.choices = [
-            (dish.id, (dish.name + ": " + self.format_price_range(dish.price_range())))
+            (dish.id, (dish.name + ": " + price_range_string(dish.price_range())))
             for dish in location.dishes
         ]
         if not self.is_submitted() and self.comment.data is None:

app/templates/location.html

@@ -33,7 +33,7 @@
 				<tr>
 					<td>{{ dish.name or dish.id }}</td>
 					<td>{{ dish.description or "" }}</td>
-					<td style="white-space: nowrap;">{{ dish.price|euro }}<td>
+					<td style="white-space: nowrap;">{{ dish.price_range()|price_range(true) }}<td>
 				</tr>
 			{%- endfor %}
 			</tbody>

app/utils.py

@@ -9,6 +9,11 @@ def euro_string(value: int) -> str:
     """
     return "€ {}.{:02}".format(*divmod(value, 100))
 
+def price_range_string(price_range, include_upper=False):
+    if price_range[0] == price_range[1]:
+        return euro_string(price_range[0])
+    return ("{}—{}" if include_upper else "from {}").format(*map(euro_string, price_range))
+
 
 def first(iterable: Iterable, default=None):
     """