add userdb template tags

- add changelog entry
- add generated documentation for userdbs.templatetags.userdb
- add userdb template tags db_type_icon_class and db_type_name
- remove empty userdbs.views

gnuviechadmin/userdbs/templatetags/__init__.py

@@ -0,0 +1,4 @@
+"""
+This module provides custom template tags for user databases.
+
+"""

gnuviechadmin/userdbs/templatetags/userdb.py

@@ -0,0 +1,55 @@
+"""
+This is the template tag library for user databases.
+
+"""
+
+from django import template
+from django.utils.translation import gettext_lazy as _
+
+from userdbs.models import DB_TYPES
+
+register = template.Library()
+
+_TYPE_NAME_MAP = {
+    DB_TYPES.mysql: 'mysql',
+    DB_TYPES.pgsql: 'postgres',
+}
+
+
+def db_type_icon_class(context):
+    """
+    This template tag derives the matching icon name for the numeric database
+    type stored in the context variable db_type.
+
+    The icon names used are those of `Font Mfizz
+    <http://mfizz.com/oss/font-mfizz>`_.
+
+    :param context: the template context
+    :return: icon name
+    :rtype: str
+
+    """
+    db_type = context['db_type']
+    if db_type in _TYPE_NAME_MAP:
+        return 'icon-' + _TYPE_NAME_MAP[db_type]
+    return 'icon-database'
+
+
+register.simple_tag(db_type_icon_class, takes_context=True)
+
+
+def db_type_name(context):
+    """
+    This template tag gets the human readable database type for the numeric
+    database type stored in the context variable db_type.
+
+    :param context: the template context
+    :return: human readable database type name
+    :rtype: str
+
+    """
+    db_type = context['db_type']
+    return _(DB_TYPES[db_type])
+
+
+register.simple_tag(db_type_name, takes_context=True)

gnuviechadmin/userdbs/views.py

@@ -1,3 +0,0 @@
-from django.shortcuts import render
-
-# Create your views here.