Modify coffeeinfoitem into generic websiteinfoitem

Resolve #31

infoscreen/models.py

@@ -80,14 +80,52 @@ class ABBInfoItem(InfoItem):
     def get_create_template_url():
         return "/static/html/abb_create.html"
         
-class CoffeeInfoItem(InfoItem):
-    display_name = _("Coffee display")
+
+class ExternalWebsiteInfoItem(InfoItem):
+    display_name = _("External website")
+    url = models.TextField()
     def get_template_url(self):
-        return "/static/html/coffee.html"
+        return "/static/html/external_website.html?url={}".format(self.name)
 
     @staticmethod
     def get_create_template_url():
-        return "/static/html/coffee_create.html"
+        return "/static/html/external_website_create.html"
+
+    def get_dict(self):
+        d = super().get_dict()
+        d["options"] = {'url': self.url}
+        return d
+
+    @classmethod
+    def create_from_dict(cls, d):
+        item = cls()
+        item.update_from_dict(d)
+        return item
+
+    def get_list(self):
+        return {
+            'id':self.id,
+            'name':self.name,
+            'url': self.url,
+        }
+
+    def update_from_dict(self, d):
+        try:
+            expire_date = d.pop('expire_date', None)
+            self.expire_date = datetime.strptime(expire_date, "%Y-%m-%d %H:%M:%S")
+        except:
+            pass
+
+        dmap = {
+            'name': 'name',
+            'url': 'url',
+        }
+        for k, v in d.items():
+            try:
+                self.__setattr__(dmap[k], v)
+            except KeyError:
+                pass
+        self.save()
 
 class SossoInfoItem(InfoItem):
     display_name = _("Sössö articles")