Added template filter 'absolute_url'

openslides/core/templatetags/tags.py

@@ -10,6 +10,8 @@
     :license: GNU GPL, see LICENSE for more details.
 """
 
+import warnings
+
 from django import template
 from django.utils.translation import ugettext as _
 from openslides.config.api import config
@@ -35,10 +37,25 @@ def trans(value):
 
 @register.simple_tag
 def model_url(object, link='view'):
-    # TODO: Rename to object_url
+    warnings.warn("model_url is deprecated; use absolute_url instead",
+                  DeprecationWarning)
     return object.get_absolute_url(link)
 
 
+@register.filter
+def absolute_url(model, link='detail'):
+    """
+    Returns the absolute_url to a model. The 'link' argument decides which url
+    will be returned. See get_absolute_url() in the model.
+
+    Example: {{ motion|absolute_url:'delete' }}
+    """
+    try:
+        return model.get_absolute_url(link)
+    except ValueError:
+        return ''
+
+
 @register.filter
 def first_line(text):
     try:

tests/core/models.py

@@ -0,0 +1,12 @@
+from django.db import models
+
+
+class TestModel(models.Model):
+    name = models.CharField(max_length='255')
+
+    def get_absolute_url(self, link='detail'):
+        if link == 'detail':
+            return 'detail-url-here'
+        if link == 'delete':
+            return 'delete-url-here'
+        raise ValueError('No URL for %s' % link)

tests/core/test_template_tags_filters.py

@@ -13,6 +13,8 @@ from django.template import Template, Context
 from openslides.utils.test import TestCase
 from openslides.config.api import config
 
+from .models import TestModel
+
 
 class ConfigTagAndFilter(TestCase):
     def test_config_tag(self):
@@ -37,3 +39,32 @@ class ConfigTagAndFilter(TestCase):
         template = Template(template_code)
         self.assertTrue('FdgfkR04jtg9f8bq' in template.render(Context({})))
         self.assertFalse('bad_e0fvkfHFD' in template.render(Context({})))
+
+
+class AbsoluteUrlFilter(TestCase):
+    def setUp(self):
+        self.model = TestModel.objects.create(name='test_model')
+
+    def test_default_argument(self):
+        """
+        Test to call absolute_url without an argument.
+        """
+        t = Template("{% load tags %}URL: {{ model|absolute_url }}")
+        html = t.render(Context({'model': self.model}))
+        self.assertEqual(html, 'URL: detail-url-here')
+
+    def test_with_argument(self):
+        """
+        Test to call absolute_url with an argument.
+        """
+        t = Template("{% load tags %}URL: {{ model|absolute_url:'delete' }}")
+        html = t.render(Context({'model': self.model}))
+        self.assertEqual(html, 'URL: delete-url-here')
+
+    def test_wrong_argument(self):
+        """
+        Test to call absolute_url with a non existing argument.
+        """
+        t = Template("{% load tags %}URL: {{ model|absolute_url:'wrong' }}")
+        html = t.render(Context({'model': self.model}))
+        self.assertEqual(html, 'URL: ')