diff --git a/apps/account/admin.py b/apps/account/admin.py
index 12f2ef03..a89e6693 100644
--- a/apps/account/admin.py
+++ b/apps/account/admin.py
@@ -8,7 +8,7 @@ from account import models
 
 @admin.register(models.Role)
 class RoleAdmin(admin.ModelAdmin):
-    list_display = ['role', 'country', 'is_list', 'is_create', 'is_update', 'is_delete']
+    list_display = ['role', 'country']
 
 
 @admin.register(models.UserRole)
diff --git a/apps/account/migrations/0010_auto_20191008_0751.py b/apps/account/migrations/0010_auto_20191008_0751.py
new file mode 100644
index 00000000..289f8643
--- /dev/null
+++ b/apps/account/migrations/0010_auto_20191008_0751.py
@@ -0,0 +1,29 @@
+# Generated by Django 2.2.4 on 2019-10-08 07:51
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0009_role_userrole'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='role',
+            name='is_create',
+        ),
+        migrations.RemoveField(
+            model_name='role',
+            name='is_delete',
+        ),
+        migrations.RemoveField(
+            model_name='role',
+            name='is_list',
+        ),
+        migrations.RemoveField(
+            model_name='role',
+            name='is_update',
+        ),
+    ]
diff --git a/apps/account/models.py b/apps/account/models.py
index 960860cd..c7de88e3 100644
--- a/apps/account/models.py
+++ b/apps/account/models.py
@@ -206,10 +206,10 @@ class Role(ProjectBaseMixin):
     role = models.PositiveIntegerField(verbose_name=_('Role'), choices=ROLE_CHOICES,
                                        null=False, blank=False)
     country = models.ForeignKey(Country, verbose_name=_('Country'), on_delete=models.CASCADE)
-    is_list = models.BooleanField(verbose_name=_('list'), default=True, null=False)
-    is_create = models.BooleanField(verbose_name=_('create'), default=False, null=False)
-    is_update = models.BooleanField(verbose_name=_('update'), default=False, null=False)
-    is_delete = models.BooleanField(verbose_name=_('delete'), default=False, null=False)
+    # is_list = models.BooleanField(verbose_name=_('list'), default=True, null=False)
+    # is_create = models.BooleanField(verbose_name=_('create'), default=False, null=False)
+    # is_update = models.BooleanField(verbose_name=_('update'), default=False, null=False)
+    # is_delete = models.BooleanField(verbose_name=_('delete'), default=False, null=False)
 
 
 class UserRole(ProjectBaseMixin):
diff --git a/apps/account/permissions.py b/apps/account/permissions.py
new file mode 100644
index 00000000..e69de29b
diff --git a/apps/comment/serializers/back.py b/apps/comment/serializers/back.py
new file mode 100644
index 00000000..a491168d
--- /dev/null
+++ b/apps/comment/serializers/back.py
@@ -0,0 +1,11 @@
+"""Comment app common serializers."""
+from comment import models
+from rest_framework import serializers
+from utils.serializers import ProjectModelSerializer
+
+
+class CommentBaseSerializer(ProjectModelSerializer):
+
+    class Meta:
+        model = models.Comment
+        fields = ('id', 'text', 'mark', 'user')
\ No newline at end of file
diff --git a/apps/comment/urls/back.py b/apps/comment/urls/back.py
new file mode 100644
index 00000000..6141ceed
--- /dev/null
+++ b/apps/comment/urls/back.py
@@ -0,0 +1,9 @@
+"""Web urlpaths."""
+from comment.urls.common import urlpatterns as common_urlpatterns
+
+app_name = 'comment'
+
+urlpatterns_api = []
+
+urlpatterns = common_urlpatterns + \
+              urlpatterns_api
diff --git a/apps/comment/views/back.py b/apps/comment/views/back.py
new file mode 100644
index 00000000..e69de29b