remove dependency on unicode-slugify, use Django builtin function

Author: PetrDlouhy

categories/base.py

@@ -12,10 +12,10 @@
 from mptt.fields import TreeForeignKey
 from mptt.managers import TreeManager
 from mptt.models import MPTTModel
-from slugify import slugify
 
 from .editor.tree_editor import TreeEditor
 from .settings import ALLOW_SLUG_CHANGE, SLUG_TRANSLITERATOR
+from .utils import slugify
 
 
 class CategoryManager(models.Manager):

categories/management/commands/import_categories.py

@@ -2,11 +2,12 @@
 
 from django.core.management.base import BaseCommand, CommandError
 from django.db import transaction
-from slugify import slugify
 
 from categories.models import Category
 from categories.settings import SLUG_TRANSLITERATOR
 
+from ...utils import slugify
+
 
 class Command(BaseCommand):
     """Import category trees from a file."""

categories/tests/test_utils.py

@@ -0,0 +1,24 @@
+from django.test import TestCase
+
+from ..utils import slugify
+
+
+class TestSlugify(TestCase):
+    def test_slugify(self):
+        string_dict = {
+            "naïve café": "naïve-café",
+            "spaced    out": "spaced-out",
+            "[email protected]": "userdomaincom",
+            "100% natural": "100-natural",
+            "über-cool": "über-cool",
+            "façade élégant": "façade-élégant",
+            "北京大学": "北京大学",
+            "Толстой": "толстой",
+            "ñoño": "ñoño",
+            "سلام": "سلام",
+            "Αθήνα": "Αθήνα",
+            "こんにちは": "こんにちは",
+            "˚č$'\\*>%ˇ'!/": "čˇ",
+        }
+        for key, value in string_dict.items():
+            self.assertEqual(slugify(key), value)

categories/utils.py

@@ -0,0 +1,8 @@
+"""This module contains utility functions that are used across the project."""
+
+from django.utils.text import slugify as django_slugify
+
+
+def slugify(text):
+    """Slugify a string. This function is a wrapper to unify the slugify function across the project."""
+    return django_slugify(text, allow_unicode=True)

requirements/prod.txt

@@ -1,2 +1 @@
 django-mptt
-unicode-slugify