feat: allow multiple barcodes to be associated with a product

chore: consistent renaming from ean to barcode

matemat/db/facade.py

@@ -5,7 +5,7 @@ import crypt
 from hmac import compare_digest
 from datetime import datetime, UTC
 
-from matemat.db.primitives import User, Token, Product, ReceiptPreference, Receipt, \
+from matemat.db.primitives import User, Token, Product, Barcode, ReceiptPreference, Receipt, \
     Transaction, Consumption, Deposit, Modification
 from matemat.exceptions import AuthenticationError, DatabaseConsistencyError
 from matemat.db import DatabaseWrapper
@@ -440,12 +440,12 @@ class MatematDatabase(object):
         products: List[Product] = []
         with self.db.transaction(exclusive=False) as c:
             for row in c.execute('''
-                SELECT product_id, name, price_member, price_non_member, custom_price, stock, stockable, ean
+                SELECT product_id, name, price_member, price_non_member, custom_price, stock, stockable
                 FROM products ORDER BY name
               '''):
-                product_id, name, price_member, price_external, custom_price, stock, stockable, ean = row
+                product_id, name, price_member, price_external, custom_price, stock, stockable = row
                 products.append(
-                    Product(product_id, name, price_member, price_external, custom_price, stockable, stock, ean))
+                    Product(product_id, name, price_member, price_external, custom_price, stockable, stock))
         return products
 
     def get_product(self, pid: int) -> Product:
@@ -456,36 +456,38 @@ class MatematDatabase(object):
         with self.db.transaction(exclusive=False) as c:
             # Fetch all values to construct the product
             c.execute('''
-                SELECT product_id, name, price_member, price_non_member, custom_price, stock, stockable, ean
+                SELECT product_id, name, price_member, price_non_member, custom_price, stock, stockable
                 FROM products
                 WHERE product_id = :product_id''', {'product_id': pid})
             row = c.fetchone()
             if row is None:
                 raise ValueError(f'No product with product ID {pid} exists.')
             # Unpack the row and construct the product
-            product_id, name, price_member, price_non_member, custom_price, stock, stockable, ean = row
+            product_id, name, price_member, price_non_member, custom_price, stock, stockable = row
-            return Product(product_id, name, price_member, price_non_member, custom_price, stockable, stock, ean)
+            return Product(product_id, name, price_member, price_non_member, custom_price, stockable, stock)
 
-    def get_product_by_ean(self, ean: str) -> Product:
+    def get_product_by_barcode(self, barcode: str) -> Product:
         """
-        Return a product identified by its EAN code.
+        Return a product identified by its barcode.
-        :param ean: The product's EAN code.
+        :param barcode: The product's barcode code.
         """
         with self.db.transaction(exclusive=False) as c:
             # Fetch all values to construct the product
             c.execute('''
-                SELECT product_id, name, price_member, price_non_member, custom_price, stock, stockable, ean
+                SELECT p.product_id, p.name, price_member, price_non_member, custom_price, stock, stockable
-                FROM products
+                FROM products AS p
-                WHERE ean = :ean''', {'ean': ean})
+                JOIN barcodes AS b
+                  ON b.product_id = p.product_id
+                WHERE b.barcode = :barcode''', {'barcode': barcode})
             row = c.fetchone()
             if row is None:
-                raise ValueError(f'No product with EAN code {ean} exists.')
+                raise ValueError(f'No product with barcode {barcode} exists.')
             # Unpack the row and construct the product
-            product_id, name, price_member, price_non_member, custom_price, stock, stockable, ean = row
+            product_id, name, price_member, price_non_member, custom_price, stock, stockable = row
-            return Product(product_id, name, price_member, price_non_member, custom_price, stockable, stock, ean)
+            return Product(product_id, name, price_member, price_non_member, custom_price, stockable, stock)
 
     def create_product(self, name: str, price_member: int, price_non_member: int, custom_price:
-                       bool, stockable: bool, ean: str) -> Product:
+                       bool, stockable: bool, barcode: str) -> Product:
         """
         Creates a new product.
         :param name: Name of the product.
@@ -493,6 +495,7 @@ class MatematDatabase(object):
         :param price_non_member: Price of the product for non-members.
         :param custom_price: Whether the price is customizable.  If yes, the price values are understood as minimum.
         :param stockable: True if the product should be stockable, false otherwise.
+        :param barcode: If provided, a barcode this product is identified by.
         :return: A Product object representing the created product.
         :raises ValueError: If a product with the same name already exists.
         """
@@ -502,19 +505,27 @@ class MatematDatabase(object):
             if c.fetchone() is not None:
                 raise ValueError(f'A product with the name \'{name}\' already exists.')
             c.execute('''
-              INSERT INTO products (name, price_member, price_non_member, custom_price, stock, stockable, ean)
+              INSERT INTO products (name, price_member, price_non_member, custom_price, stock, stockable)
-              VALUES (:name, :price_member, :price_non_member, :custom_price, 0, :stockable, :ean)
+              VALUES (:name, :price_member, :price_non_member, :custom_price, 0, :stockable)
             ''', {
                 'name': name,
                 'price_member': price_member,
                 'price_non_member': price_non_member,
                 'custom_price': custom_price,
                 'stockable': stockable,
-                'ean': ean,
             })
             c.execute('SELECT last_insert_rowid()')
             product_id = int(c.fetchone()[0])
-        return Product(product_id, name, price_member, price_non_member, custom_price, stockable, 0, ean)
+            if barcode:
+                c.execute('''
+                INSERT INTO barcodes (barcode, product_id, name)
+                VALUES (:barcode, :product_id, :name)
+                ''', {
+                    'barcode': barcode,
+                    'product_id': product_id,
+                    'name': name,
+                })
+        return Product(product_id, name, price_member, price_non_member, custom_price, stockable, 0)
 
     def change_product(self, product: Product, **kwargs) -> None:
         """
@@ -533,7 +544,6 @@ class MatematDatabase(object):
         custom_price: int = kwargs['custom_price'] if 'custom_price' in kwargs else product.custom_price
         stock: int = kwargs['stock'] if 'stock' in kwargs else product.stock
         stockable: bool = kwargs['stockable'] if 'stockable' in kwargs else product.stockable
-        ean: str = kwargs['ean'] if 'ean' in kwargs else product.ean
         with self.db.transaction() as c:
             c.execute('''
             UPDATE products
@@ -544,7 +554,6 @@ class MatematDatabase(object):
               custom_price = :custom_price,
               stock = :stock,
               stockable = :stockable,
-              ean = :ean
             WHERE product_id = :product_id
             ''', {
                 'product_id': product.id,
@@ -554,7 +563,6 @@ class MatematDatabase(object):
                 'custom_price': custom_price,
                 'stock': stock,
                 'stockable': stockable,
-                'ean': ean
             })
             affected = c.execute('SELECT changes()').fetchone()[0]
             if affected != 1:
@@ -567,7 +575,6 @@ class MatematDatabase(object):
         product.custom_price = custom_price
         product.stock = stock
         product.stockable = stockable
-        product.ean = ean
 
     def delete_product(self, product: Product) -> None:
         """
@@ -585,6 +592,61 @@ class MatematDatabase(object):
                 raise DatabaseConsistencyError(
                     f'delete_product should affect 1 products row, but affected {affected}')
 
+    def list_barcodes(self, pid: Optional[int] = None) -> List[Barcode]:
+        barcodes: List[Barcode] = []
+        with self.db.transaction(exclusive=False) as c:
+            if pid is not None:
+                rows = c.execute('''
+                SELECT barcode_id, barcode, product_id, name
+                FROM barcodes
+                WHERE product_id = :product_id
+                ''', {'product_id': pid})
+            else:
+                rows = c.execute('''
+                SELECT barcode_id, barcode, product_id, name
+                FROM barcodes
+                ''')
+            for row in rows:
+                barcode_id, barcode, product_id, name = row
+                barcodes.append(
+                    Barcode(barcode_id, barcode, product_id, name))
+        return barcodes
+
+    def get_barcode(self, bcid: int) -> Barcode:
+        with self.db.transaction(exclusive=False) as c:
+            c.execute('''
+                SELECT barcode_id, barcode, product_id, name
+                FROM barcodes
+                WHERE barcode_id = :barcode_id
+              ''', {'barcode_id': bcid})
+            barcode_id, barcode, product_id, name = c.fetchone()
+            return Barcode(barcode_id, barcode, product_id, name)
+
+    def add_barcode(self, product: Product, barcode: str, name: Optional[str]):
+        with self.db.transaction() as c:
+            c.execute('''
+            INSERT INTO barcodes (barcode, product_id, name)
+            VALUES (:barcode, :product_id, :name)
+            ''', {
+                'barcode': barcode,
+                'product_id': product.id,
+                'name': name
+            })
+            c.execute('SELECT last_insert_rowid()')
+            bcid = int(c.fetchone()[0])
+        return Barcode(bcid, barcode, product.id, name)
+
+    def delete_barcode(self, barcode: Barcode):
+        with self.db.transaction() as c:
+            c.execute('''
+            DELETE FROM barcodes
+            WHERE barcode_id = :barcode_id
+            ''', {'barcode_id': barcode.id})
+            affected = c.execute('SELECT changes()').fetchone()[0]
+            if affected != 1:
+                raise DatabaseConsistencyError(
+                    f'delete_barcode should affect 1 token row, but affected {affected}')
+
     def increment_consumption(self, user: User, product: Product, custom_price: int = None) -> None:
         """
         Decrement the user's balance by the price of the product and create an entry in the statistics table.

matemat/db/migrations.py

@@ -374,3 +374,27 @@ def migrate_schema_10(c: sqlite3.Cursor):
     c.execute('''
     DROP TABLE users_old
     ''')
+
+
+def migrate_schema_11(c: sqlite3.Cursor):
+    c.execute('''
+    CREATE TABLE barcodes (
+      barcode_id INTEGER PRIMARY KEY,
+      barcode TEXT UNIQUE NOT NULL,
+      product_id INTEGER NOT NULL,
+      name TEXT DEFAULT NULL,
+      FOREIGN KEY (product_id) REFERENCES products(product_id)
+        ON DELETE CASCADE ON UPDATE CASCADE
+    )
+    ''')
+    c.execute('''
+    INSERT INTO barcodes (barcode, product_id, name)
+    SELECT ean, product_id, name FROM products
+    WHERE ean IS NOT NULL
+    ''')
+    c.execute('''
+    DROP INDEX IF EXISTS _matemat_products_ean_unique
+    ''')
+    c.execute('''
+    ALTER TABLE products DROP COLUMN ean
+    ''')

matemat/db/primitives/Barcode.py

@@ -0,0 +1,34 @@
+
+from typing import Optional
+
+
+class Barcode:
+    """
+    Representation of a product barcode associated with a product.
+
+    :param _id: The barcode ID in the database.
+    :param barcode: The barcode strig.
+    :param product_id: The ID of the product this barcode belongs to.
+    :param name: The display name of the token:
+    """
+
+    def __init__(self,
+                 _id: int,
+                 barcode: str,
+                 product_id: int,
+                 name: str) -> None:
+        self.id: int = _id
+        self.barcode: str = barcode
+        self.product_id: str = product_id
+        self.name = name
+
+    def __eq__(self, other) -> bool:
+        if not isinstance(other, Barcode):
+            return False
+        return self.id == other.id and \
+            self.barcode == other.barcode and \
+            self.product_id == other.product_id and \
+            self.name == other.name
+
+    def __hash__(self) -> int:
+        return hash((self.id, self.barcode, self.product_id, self.name))

matemat/db/primitives/Product.py

@@ -11,12 +11,11 @@ class Product:
     :param custom_price: If true, the user can choose the price to pay, but at least the regular price.
     :param stock: The number of items of this product currently in stock, or None if not stockable.
     :param stockable: Whether this product is stockable.
-    :param ean: The product's EAN code.  May be None.
     """
 
     def __init__(self, _id: int, name: str,
                  price_member: int, price_non_member: int, custom_price: bool,
-                 stockable: bool, stock: int, ean: str) -> None:
+                 stockable: bool, stock: int) -> None:
         self.id: int = _id
         self.name: str = name
         self.price_member: int = price_member
@@ -24,7 +23,6 @@ class Product:
         self.custom_price: bool = custom_price
         self.stock: int = stock
         self.stockable: bool = stockable
-        self.ean: str = ean
 
     def __eq__(self, other) -> bool:
         if not isinstance(other, Product):
@@ -35,9 +33,8 @@ class Product:
             self.price_non_member == other.price_non_member and \
             self.custom_price == other.custom_price and \
             self.stock == other.stock and \
-            self.stockable == other.stockable and \
+            self.stockable == other.stockable
-            self.ean == other.ean
 
     def __hash__(self) -> int:
         return hash((self.id, self.name, self.price_member, self.price_non_member, self.custom_price,
-                     self.stock, self.stockable, self.ean))
+                     self.stock, self.stockable))

matemat/db/primitives/__init__.py

@@ -5,6 +5,7 @@ This package provides the 'primitive types' the Matemat software deals with - na
 from .User import User
 from .Token import Token
 from .Product import Product
+from .Barcode import Barcode
 from .ReceiptPreference import ReceiptPreference
 from .Transaction import Transaction, Consumption, Deposit, Modification
 from .Receipt import Receipt

matemat/webserver/pagelets/admin.py

@@ -43,12 +43,12 @@ def admin():
 
         # Fetch all existing users and products from the database
         users = db.list_users()
-        tokens = db.list_tokens(uid)
         products = db.list_products()
+        barcodes = db.list_barcodes()
         # Render the "Admin" page
         now = str(int(datetime.now(UTC).timestamp()))
         return template.render('admin.html',
-                               authuser=user, authlevel=authlevel, tokens=tokens, users=users, products=products,
+                               authuser=user, authlevel=authlevel, users=users, products=products, barcodes=barcodes,
                                receipt_preference_class=ReceiptPreference, now=now,
                                setupname=config['InstanceName'], config_smtp_enabled=config['SmtpSendReceipts'])
 
@@ -107,9 +107,9 @@ def handle_change(args: FormsDict, files: FormsDict, db: MatematDatabase):
             price_non_member = parse_chf(str(args.pricenonmember))
             custom_price = 'custom_price' in args
             stockable = 'stockable' in args
-            ean = str(args.ean) or None
+            barcode = str(args.barcode) or None
             # Create the product in the database
-            newproduct = db.create_product(name, price_member, price_non_member, custom_price, stockable, ean)
+            newproduct = db.create_product(name, price_member, price_non_member, custom_price, stockable, barcode)
             # If a new product image was uploaded, process it
             image = files.image.file.read() if 'image' in files else None
             if image is not None and len(image) > 0:

matemat/webserver/pagelets/main.py

@@ -23,16 +23,13 @@ def main_page():
         products = db.list_products()
         buyproduct = None
 
-        if request.params.ean:
+        if request.params.barcode:
             try:
-                buyproduct = db.get_product_by_ean(request.params.ean)
+                buyproduct = db.get_product_by_barcode(request.params.barcode)
-                Notification.success(
-                    f'Login will purchase <strong>{buyproduct.name}</strong>. ' +
-                    'Click <a class="alert-link" href="/">here</a> to abort.')
             except ValueError:
                 if not session.has(session_id, 'authenticated_user'):
                     try:
-                        user, token = db.tokenlogin(str(request.params.ean))
+                        user, token = db.tokenlogin(str(request.params.barcode))
                         # Set the user ID session variable
                         session.put(session_id, 'authenticated_user', user.id)
                         # Set the authlevel session variable (0 = none, 1 = token, 2 = touchkey, 3 = password)
@@ -41,7 +38,7 @@ def main_page():
                     except AuthenticationError:
                         # Redirect to main page on token login error
                         pass
-                Notification.error(f'EAN code {request.params.ean} is not associated with any product.', decay=True)
+                Notification.error(f'Barcode {request.params.barcode} is not associated with any product.', decay=True)
                 redirect('/')
 
         # Check whether a user is logged in
@@ -49,7 +46,7 @@ def main_page():
             # Fetch the user id and authentication level (touchkey vs password) from the session storage
             uid: int = session.get(session_id, 'authenticated_user')
             authlevel: int = session.get(session_id, 'authentication_level')
-            # If an EAN code was scanned, directly trigger the purchase
+            # If an barcode was scanned, directly trigger the purchase
             if buyproduct:
                 redirect(f'/buy?pid={buyproduct.id}')
             # Fetch the user object from the database (for name display, price calculation and admin check)
@@ -65,6 +62,10 @@ def main_page():
             # If there are no admin users registered, jump to the admin creation procedure
             if not db.has_admin_users():
                 redirect('/userbootstrap')
+            if buyproduct:
+                Notification.success(
+                    f'Login will purchase <strong>{buyproduct.name}</strong>. ' +
+                    'Click <a class="alert-link" href="/">here</a> to abort.')
             # If no user is logged in, fetch the list of users and render the userlist template
             users = db.list_users(with_touchkey=True)
             return template.render('userlist.html',

matemat/webserver/pagelets/modproduct.py

@@ -56,9 +56,10 @@ def modproduct():
                 redirect('/admin')
 
         # Render the "Modify Product" page
+        barcodes = db.list_barcodes(modproduct_id)
         now = str(int(datetime.now(UTC).timestamp()))
         return template.render('modproduct.html',
-                               authuser=authuser, product=product, authlevel=authlevel,
+                               authuser=authuser, product=product, authlevel=authlevel, barcodes=barcodes,
                                setupname=config['InstanceName'], now=now)
 
 
@@ -85,6 +86,30 @@ def handle_change(args: FormsDict, files: FormsDict, product: Product, db: Matem
         except FileNotFoundError:
             pass
 
+    elif change == 'addbarcode':
+        if 'barcode' not in args:
+            return
+        barcode = str(args.barcode)
+        name = None if 'name' not in args or len(args.name) == 0 else str(args.name)
+        try:
+            bcobj = db.add_barcode(product, barcode, name)
+            Notification.success(f'Barcode {name} added successfully', decay=True)
+        except DatabaseConsistencyError:
+            Notification.error(f'Barcode {barcode} already exists', decay=True)
+
+    elif change == 'delbarcode':
+        try:
+            bcid = id(str(request.params.barcode))
+            barcode = db.get_barcode(bcid)
+        except Exception as e:
+            Notification.error('Barcode not found', decay=True)
+            return
+        try:
+            db.delete_barcode(token)
+        except DatabaseConsistencyError:
+            Notification.error(f'Failed to delete barcode {barcode.name}', decay=True)
+        Notification.success(f'Barcode {barcode.name} removed', decay=True)
+
     # Admin requested update of the product details
     elif change == 'update':
         # Only write a change if all properties of the product are present in the request arguments
@@ -98,12 +123,11 @@ def handle_change(args: FormsDict, files: FormsDict, product: Product, db: Matem
         custom_price = 'custom_price' in args
         stock = int(str(args.stock))
         stockable = 'stockable' in args
-        ean = str(args.ean) or None
         # Attempt to write the changes to the database
         try:
             db.change_product(product,
                               name=name, price_member=price_member, price_non_member=price_non_member,
-                              custom_price=custom_price, stock=stock, stockable=stockable, ean=ean)
+                              custom_price=custom_price, stock=stock, stockable=stockable)
             stock_provider = get_stock_provider()
             if stock_provider.needs_update() and product.stockable:
                 stock_provider.set_stock(product, stock)

matemat/webserver/template/template.py

@@ -29,14 +29,14 @@ def render(name: str, **kwargs):
     global __jinja_env
     config = get_app_config()
     template: jinja2.Template = __jinja_env.get_template(name)
-    wsacl = netaddr.IPSet([addr.strip() for addr in config.get('EanWebsocketAcl', '').split(',')])
+    wsacl = netaddr.IPSet([addr.strip() for addr in config.get('BarcodeWebsocketAcl', '').split(',')])
-    if config.get('EanWebsocketUrl', '') and request.remote_addr in wsacl:
+    if config.get('BarcodeWebsocketUrl', '') and request.remote_addr in wsacl:
-        eanwebsocket = config.get('EanWebsocketUrl')
+        bcwebsocket = config.get('BarcodeWebsocketUrl')
     else:
-        eanwebsocket = None
+        bcwebsocket = None
     return template.render(
         __version__=__version__,
         notifications=Notification.render(),
-        eanwebsocket=eanwebsocket,
+        barcodewebsocket=bcwebsocket,
         **kwargs
     ).encode('utf-8')

package/debian/matemat/etc/matemat.conf

@@ -41,8 +41,8 @@ InstanceName=Matemat
 # Open a websocket connection on which to listen for scanned barcodes.
 # Can be restricted so that e.g. the connection is only attempted when the client is localhost.
 #
-#EanWebsocketUrl=ws://localhost:47808/ws
+#BarcodeWebsocketUrl=ws://localhost:47808/ws
-#EanWebsocketAcl=::1,::ffff:127.0.0.0/104,127.0.0.0/8
+#BarcodeWebsocketAcl=::1,::ffff:127.0.0.0/104,127.0.0.0/8
 
 
 # Add static HTTP headers in this section

templates/admin.html

@@ -68,7 +68,7 @@
 	<table class="table table-striped">
 	  <tr>
 	    <th>Name</th>
-	    <th>EAN code</th>
+	    <th>Barcodes</th>
 	    <th>Member price</th>
 	    <th>Non-member price</th>
 	    <th>Custom price</th>
@@ -78,7 +78,7 @@
 	  </tr>
 	  <tr>
 	    <td><input class="form-control" id="admin-newproduct-name" type="text" name="name" placeholder="New product name"></td>
-	    <td><input class="form-control" id="admin-newproduct-ean" type="text" name="ean" placeholder="Scan to insert EAN"></td>
+	    <td><input class="form-control" id="admin-newproduct-barcode" type="text" name="barcode" placeholder="Scan barcode to insert here"></td>
 	    <td>
 	      <div class="input-group mb-3">
 		<span class="input-group-text">CHF</span>
@@ -99,7 +99,15 @@
 	  {% for product in products %}
 	    <tr>
 	      <td>{{ product.name }}</td>
-	      <td>{{ product.ean or '' }}</td>
+	      <td>
+		{% set bcs = barcodes | selectattr('product_id', 'eq', product.id) | list %}
+		{% if bcs | length > 0 %}
+		  {{ bcs[0].barcode }}
+		  {% if bcs | length > 1 %}
+		  <span class="badge bg-secondary">+{{ bcs | length - 1 }}</span>
+		  {% endif %}
+		{% endif %}
+	      </td>
 	      <td>{{ product.price_member | chf }}</td>
 	      <td>{{ product.price_non_member | chf }}</td>
 	      <td>{{ '✓' if product.custom_price else '✗' }}</td>
@@ -160,9 +168,9 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  let eaninput = document.getElementById("admin-newproduct-ean");
+  let bcinput = document.getElementById("admin-newproduct-barcode");
-  eaninput.value = e.data;
+  bcinput.value = e.data;
-  eaninput.select();
+  bcinput.select();
-  eaninput.scrollIntoView();
+  bcinput.scrollIntoView();
 {% endblock %}

templates/base.html

@@ -68,17 +68,17 @@
       {% endblock %}
     </footer>
 
-    {% if eanwebsocket %}
+    {% if barcodewebsocket %}
       <script>
 	function connect() {
-	let socket = new WebSocket("{{ eanwebsocket }}");
+	let socket = new WebSocket("{{ barcodewebsocket }}");
 	socket.onclose = () => { setTimeout(connect, 1000); };
 	socket.onmessage = function (e) {
 	// Focus this tab - requires https://git.kabelsalat.ch/ccc-basel/barcode-utils
 	if (typeof window.extension_tabfocus === "function") {
         window.extension_tabfocus();
 	}
-	{% block eanwebsocket %}{% endblock %}
+	{% block barcodewebsocket %}{% endblock %}
 	};
 	}
 	window.addEventListener("load", () => { connect(); });

templates/login.html

@@ -24,7 +24,7 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  document.location = "/?ean=" + e.data;
+  document.location = "/?barcode=" + e.data;
 {% endblock %}
 

templates/modproduct.html

@@ -2,16 +2,13 @@
 
 {% block main %}
 
-<section id="modproduct">
+  <section id="modproduct">
     <h1>Modify {{ product.name }}</h1>
 
     <form id="modproduct-form" method="post" action="/modproduct?change=update" enctype="multipart/form-data" accept-charset="UTF-8">
       <label class="form-label" for="modproduct-name">Name: </label>
       <input class="form-control" id="modproduct-name" type="text" name="name" value="{{ product.name }}" /><br/>
 
-        <label class="form-label" for="modproduct-ean">EAN code: </label>
-        <input class="form-control" id="modproduct-ean" type="text" name="ean" value="{{ product.ean or '' }}" /><br/>
-
       <label class="form-label" for="modproduct-price-member">Member price: </label>
       <div class="input-group mb-3">
 	<span class="input-group-text">CHF</span>
@@ -48,6 +45,31 @@
       <input class="btn btn-primary" type="submit" value="Save changes">
     </form>
 
+    <h2>Barcodes</h2>
+
+    <form id="modproduct-barcode-form" method="post" action="/modproduct?change=addbarcode" accept-charset="UTF-8">
+      <input id="modproduct-barcode-productid" type="hidden" name="productid" value="{{ product.id }}" />
+      <table class="table table-striped">
+	<tr>
+	  <th>Barcode</th>
+	  <th>Name</th>
+	  <th>Actions</th>
+	</tr>
+	<tr>
+	  <td><input class="form-control" id="modproduct-barcode-barcode" type="text" name="barcode" value="" placeholder="Scan barcode to insert here"></td>
+	  <td><input class="form-control" id="modproduct-barcode-name" type="text" name="name" value="" placeholder="Name for this barcode"></td>
+	  <td><input class="btn btn-success" type="submit" value="Add barcode"></td>
+	</tr>
+	{% for barcode in barcodes %}
+	  <tr>
+	    <td>{{ barcode.barcode }}</td>
+	    <td>{{ barcode.name }}</td>
+	    <td><a class="btn btn-danger" href="/modproduct?change=delbarcode&barcode={{ barcode.id }}">Delete</a></td>
+	  </tr>
+	{% endfor %}
+      </table>
+    </form>
+
     <h2>Delete Product</h2>
 
     <form id="modproduct-delproduct-form" method="post" action="/modproduct?change=del" accept-charset="UTF-8">
@@ -55,15 +77,15 @@
       <input class="btn btn-danger" type="submit" value="Delete product {{ product.name }}" />
     </form>
 
-</section>
+  </section>
 
-{{ super() }}
+  {{ super() }}
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  let eaninput = document.getElementById("modproduct-ean");
+  let bcinput = document.getElementById("modproduct-barcode-barcode");
-  eaninput.value = e.data;
+  bcinput.value = e.data;
-  eaninput.select();
+  bcinput.select();
-  eaninput.scrollIntoView();
+  bcinput.scrollIntoView();
 {% endblock %}

templates/productlist.html

@@ -48,7 +48,7 @@
       {% if product.custom_price %}
 	<a class="card h-100 text-bg-light" onclick="setup_custom_price({{ product.id }}, '{{ product.name}}');">
       {% else %}
-        <a class="card h-100 text-bg-light" {% if product.ean %}id="a-buy-ean{{ product.ean }}"{% endif %} href="/buy?pid={{ product.id }}">
+        <a class="card h-100 text-bg-light" href="/buy?pid={{ product.id }}">
       {% endif %}
       <div class="card-header">
 	{{ product.name }}
@@ -82,11 +82,6 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  let eaninput = document.getElementById("a-buy-ean" + e.data);
+  document.location = "?barcode=" + e.data;
-  if (eaninput === null) {
-  document.location = "?ean=" + e.data;
-  } else {
-  eaninput.click();
-  }
 {% endblock %}

templates/settings.html

@@ -151,9 +151,11 @@
   <section class="tab-pane fade pt-3" id="settings-tokens-tab-pane" role="tabpanel">
     <h2>Tokens</h2>
 
-    <strong>Warning:</strong>
+    <div class="alert alert-warning">
+	<strong>Warning: </strong>
 	Login tokens are a convenience feature that if used may weaken security.
 	Make sure you only use tokens not easily accessible to other people.
+    </div>
 
     <form id="settings-newtoken-form" method="post" action="/settings?change=addtoken" accept-charset="UTF-8">
       <table class="table table-striped">
@@ -164,7 +166,7 @@
 	  <th>Actions</th>
 	</tr>
 	<tr>
-	  <td><input class="form-control" id="settings-newtoken-token" type="password" name="token" value="" placeholder="Scan to insert EAN"></td>
+	  <td><input class="form-control" id="settings-newtoken-token" type="password" name="token" value="" placeholder="Scan barcode to insert here"></td>
 	  <td><input class="form-control" id="settings-newtoken-name" type="text" name="name" value="" placeholder="New token name"></td>
 	  <td></td>
 	  <td><input class="btn btn-success" type="submit" value="Create Token"></td>
@@ -186,7 +188,7 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
   let tokeninput = document.getElementById("settings-newtoken-token");
   tokeninput.value = e.data;
   tokeninput.select();

templates/signup.html

@@ -40,6 +40,6 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  document.location = "/?ean=" + e.data;
+  document.location = "/?barcode=" + e.data;
 {% endblock %}

templates/signup_kiosk.html

@@ -33,6 +33,6 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  document.location = "/?ean=" + e.data;
+  document.location = "/?barcode=" + e.data;
 {% endblock %}

templates/touchkey.html

@@ -26,6 +26,6 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  document.location = "/?ean=" + e.data;
+  document.location = "/?barcode=" + e.data;
 {% endblock %}

templates/userlist.html

@@ -22,6 +22,6 @@
 
 {% endblock %}
 
-{% block eanwebsocket %}
+{% block barcodewebsocket %}
-  document.location = "/?ean=" + e.data;
+  document.location = "/?barcode=" + e.data;
 {% endblock %}