Make it possible to delete orders from the cart

frontend/Entry.elm

@@ -200,7 +200,7 @@ suggestedGrossPrice netPrice percentage =
 view { globals, state } = case state of
   ItemSearch model ->
     fieldset []
-      [ legend [] [ text "Vorlage für neuen Inventareintrag" ]
+      [ legend [] [ text "Vorlage für Auftrag wählen" ]
       , Html.form [ onSubmit SubmitSearch ]
         [ div [ class "form-input" ]
           [ label [ for "search-term", title "Barcode oder Name" ] [ text "Suchbegriff" ]

jon/entry.py

@@ -9,13 +9,27 @@ bp = Blueprint("entry", __name__, url_prefix="/entry")
 
 @bp.route("/", methods=["GET", "POST"])
 def index():
-    cart = session["cart"]
+    cart = session.get("cart", default=[])
     return render_template(
         "entry/index.html",
         cart=cart
     )
 
 
+@bp.post("/delete-order")
+def delete_order():
+    try:
+        order_index = int(request.form["order-index"])
+    except:
+        return f"Incomplete or mistyped form", 400
+
+    cart = session.get("cart", default=[])
+    del cart[order_index]
+    session["cart"] = cart
+
+    return redirect(request.referrer)
+
+
 @bp.route("/new-order", methods=["GET", "POST"])
 def new_order():
     if request.method == "POST":
@@ -28,7 +42,7 @@ def new_order():
             tax_group_id = int(request.form["tax-group"])
             net_unit_price = float(request.form["net-unit-price"])
             gross_unit_price = float(request.form["gross-unit-price"])
-        except Exception as e:
+        except:
             return f"Incomplete or mistyped form", 400
         
         cart = session.get("cart", default=[])

jon/static/entry.js

@@ -11949,7 +11949,7 @@ var $author$project$Entry$view = function (_v0) {
 					_List_Nil,
 					_List_fromArray(
 						[
-							$elm$html$Html$text('Vorlage für neuen Inventareintrag')
+							$elm$html$Html$text('Vorlage für Auftrag wählen')
 						])),
 					A2(
 					$elm$html$Html$form,

jon/templates/entry/index.html

@@ -13,6 +13,7 @@
     <th>Steuergruppen-ID</th>
     <th>EK-Preis (Netto)</th>
     <th>VK-Preis (Brutto)</th>
+    <th>Aktionen</th>
   </tr>
   {% for cart_item in cart %}
   <tr>
@@ -24,6 +25,12 @@
     <td class="--align-right">{{ cart_item.tax_group_id }}</td>
     <td class="--align-right">{{ format_currency(cart_item.net_unit_price) }}</td>
     <td class="--align-right">{{ format_currency(cart_item.gross_unit_price) }}</td>
+    <td>
+      <form method="POST" action="/entry/delete-order">
+        <input type="hidden" name="order-index" value="{{ loop.index0 }}">
+        <button>Löschen</button>
+      </form>
+    </td>
   </tr>
   {% endfor %}
 </table>