[ADD] js: initialize function. xml: pos config view

Author: vvrossem

pos_customer_display/demo/pos_customer_display_demo.xml

@@ -1,11 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <odoo noupdate="1">
-
-
-<record id="point_of_sale.pos_config_main" model="pos.config">
-    <field name="iface_customer_display" eval="True"/>
-</record>
-
-
+    <record id="point_of_sale.pos_config_main" model="pos.config">
+        <field name="iface_customer_display" eval="True"/>
+    </record>
 </odoo>

pos_customer_display/models/pos_customer_display.py

@@ -11,9 +11,9 @@ class PosConfig(models.Model):
     _inherit = 'pos.config'
 
     iface_customer_display = fields.Boolean(
-        default=False, string='Customer Display', help="Display data on the customer display")
+        string='Customer Display Device Management', help="Display data on the customer display device")
     customer_display_line_length = fields.Integer(
-        string='Line Length of the Customer Display', default=20,
+        string='Line Length', default=20,
         help="Length of the LEDs lines of the customer display")
     customer_display_msg_next_l1 = fields.Char(
         string="Next Customer (top line)", default="Welcome!",
@@ -50,7 +50,7 @@ def _check_customer_display_length(self):
                 _('POS Closed (bottom line)'):
                 self.customer_display_msg_closed_l2,
             }
-            for field, msg in to_check.items():
+            for field, msg in list(to_check.items()):
                 if msg and len(msg) > maxsize:
                     raise ValidationError(_(
                         "The message for customer display '%s' is too "