diff --git a/abonapp/views.py b/abonapp/views.py
index 8d0b6ab..ec65647 100644
--- a/abonapp/views.py
+++ b/abonapp/views.py
@@ -22,6 +22,7 @@ from devapp.models import Device, Port as DevPort
 from datetime import datetime, date
 from taskapp.models import Task
 from dialing_app.models import AsteriskCDR
+from statistics.models import getModel, get_dates
 
 
 @login_required
@@ -678,7 +679,6 @@ def clear_dev(request, gid, uid):
 @login_required
 @mydefs.only_admins
 def charts(request, gid, uid):
-    from statistics.models import getModel
     high = 100
 
     wandate = request.GET.get('wantdate')
@@ -725,7 +725,7 @@ def charts(request, gid, uid):
         'abon': abon,
         'charts_data': ',\n'.join(charts_data) if charts_data is not None else None,
         'high': high,
-        'dates': StatElem.objects.get_dates()
+        'dates': get_dates()
     })
 
 
diff --git a/devapp/dev_types.py b/devapp/dev_types.py
index 74099df..c759242 100644
--- a/devapp/dev_types.py
+++ b/devapp/dev_types.py
@@ -62,9 +62,10 @@ class DLinkDevice(DevBase, SNMPBaseWorker):
         macs = self.get_list(oids['get_ports']['macs'])
         speeds = self.get_list(oids['get_ports']['speeds'])
         res = []
-        ln = len(macs)
+        ln = len(speeds)
         for n in range(ln):
             status = True if int(stats[n]) == 1 else False
+            print(len(nams), len(speeds), len(macs))
             res.append(DLinkPort(
                 n+1,
                 nams[n] if len(nams) > 0 else _('does not fetch the name'),
diff --git a/devapp/forms.py b/devapp/forms.py
index 09a823d..826c714 100644
--- a/devapp/forms.py
+++ b/devapp/forms.py
@@ -27,7 +27,7 @@ class DeviceForm(forms.ModelForm):
                 'placeholder': '192.168.0.100',
                 'class': 'form-control'
             }),
-            'comment': forms.Textarea(attrs={
+            'comment': forms.TextInput(attrs={
                 'required': True,
                 'class': 'form-control'
             }),
diff --git a/mapapp/templates/maps/map_tooltip.html b/mapapp/templates/maps/map_tooltip.html
index b7488b1..a628124 100644
--- a/mapapp/templates/maps/map_tooltip.html
+++ b/mapapp/templates/maps/map_tooltip.html
@@ -1,7 +1,7 @@
 <h4>{{ dot.title }}</h4>
 <div class="list-group">
     {% for dev in devs %}
-        <a class="list-group-item" href="{% url 'devapp:view' dev.id %}" target="_blank">
+        <a class="list-group-item" href="{% url 'devapp:view' dev.user_group.pk dev.pk %}" target="_blank">
             {{ dev.comment }}
         </a>
     {% empty %}
diff --git a/statistics/models.py b/statistics/models.py
index 9bf6b38..c222edc 100644
--- a/statistics/models.py
+++ b/statistics/models.py
@@ -7,6 +7,12 @@ from mydefs import MyGenericIPAddressField
 from .fields import UnixDateTimeField
 
 
+def get_dates():
+    tables = connection.introspection.table_names()
+    tables = [t.replace('flowstat_', '') for t in tables if t.startswith('flowstat_')]
+    return [datetime.strptime(t, '%d%m%Y').date() for t in tables]
+
+
 class StatManager(models.Manager):
 
     def chart(self, ip_addr, count_of_parts=12, want_date=date.today()):
@@ -41,11 +47,6 @@ class StatManager(models.Manager):
         else:
             return
 
-    def get_dates(self):
-        tables = connection.introspection.table_names()
-        tables = [t.replace('flowstat_', '') for t in tables if t.startswith('flowstat_')]
-        return [datetime.strptime(t, '%d%m%Y').date() for t in tables]
-
 
 class StatElem(models.Model):
     cur_time = UnixDateTimeField(primary_key=True)
@@ -55,11 +56,19 @@ class StatElem(models.Model):
 
     objects = StatManager()
 
+    # ReadOnly
     def save(self, *args, **kwargs):
-        return
+        pass
 
+    # ReadOnly
     def delete(self, *args, **kwargs):
-        return
+        pass
+
+    def delete_month(self):
+        cursor = connection.cursor()
+        table_name = self._meta.db_table
+        sql = "DROP TABLE %s;" % table_name
+        cursor.execute(sql)
 
     @staticmethod
     def percentile(N, percent, key=lambda x:x):