prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Atom feed gets a 500 error
  See http://sentry.kartoza.com/kartoza/projecta-live/group/5846/
  
  Problem is cause by models/entry.py get_absolute_url() method which still uses old slug system to resolve path to an entry.
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `django_project/changes/models/entry.py`
  Content:
  ```
  1 # coding=utf-8
  2 """Models for changelog entries."""
  3 from django.core.urlresolvers import reverse
  4 from django.utils.text import slugify
  5 import os
  6 import logging
  7 from core.settings.contrib import STOP_WORDS
  8 from django.conf.global_settings import MEDIA_ROOT
  9 from django.db import models
  10 from embed_video.fields import EmbedVideoField
  11 from django.contrib.auth.models import User
  12 
  13 logger = logging.getLogger(__name__)
  14 
  15 
  16 class ApprovedEntryManager(models.Manager):
  17     """Custom entry manager that shows only approved records."""
  18 
  19     def get_queryset(self):
  20         """Query set generator"""
  21         return super(
  22             ApprovedEntryManager, self).get_queryset().filter(
  23                 approved=True)
  24 
  25 
  26 class UnapprovedEntryManager(models.Manager):
  27     """Custom entry manager that shows only unapproved records."""
  28 
  29     def get_queryset(self):
  30         """Query set generator"""
  31         return super(
  32             UnapprovedEntryManager, self).get_queryset().filter(
  33                 approved=False)
  34 
  35 
  36 class Entry(models.Model):
  37     """An entry is the basic unit of a changelog."""
  38     title = models.CharField(
  39         help_text='Feature title for this changelog entry.',
  40         max_length=255,
  41         null=False,
  42         blank=False,
  43         unique=False)  # Unique together rule applies in meta class
  44 
  45     description = models.TextField(
  46         null=True,
  47         blank=True,
  48         help_text='Describe the new feature. Markdown is supported.')
  49 
  50     image_file = models.ImageField(
  51         help_text=(
  52             'A image that is related to this visual changelog entry. '
  53             'Most browsers support dragging the image directly on to the '
  54             '"Choose File" button above.'),
  55         upload_to=os.path.join(MEDIA_ROOT, 'images/entries'),
  56         blank=True)
  57 
  58     image_credits = models.CharField(
  59         help_text='Who should be credited for this image?',
  60         max_length=255,
  61         null=True,
  62         blank=True)
  63 
  64     video = EmbedVideoField(
  65         verbose_name='Youtube video',
  66         help_text='Paste your youtube video link',
  67         null=True,
  68         blank=True)
  69 
  70     funded_by = models.CharField(
  71         help_text='Input the funder name.',
  72         max_length=255,
  73         null=True,
  74         blank=True)
  75 
  76     funder_url = models.CharField(
  77         help_text='Input the funder URL.',
  78         max_length=255,
  79         null=True,
  80         blank=True)
  81 
  82     developed_by = models.CharField(
  83         help_text='Input the developer name.',
  84         max_length=255,
  85         null=True,
  86         blank=True)
  87 
  88     developer_url = models.CharField(
  89         help_text='Input the developer URL.',
  90         max_length=255,
  91         null=True,
  92         blank=True)
  93 
  94     approved = models.BooleanField(
  95         help_text=(
  96             'Whether this entry has been approved for use by the '
  97             'project owner.'),
  98         default=False
  99     )
  100     author = models.ForeignKey(User)
  101     slug = models.SlugField()
  102     # noinspection PyUnresolvedReferences
  103     version = models.ForeignKey('Version')
  104     # noinspection PyUnresolvedReferences
  105     category = models.ForeignKey('Category')
  106     objects = models.Manager()
  107     approved_objects = ApprovedEntryManager()
  108     unapproved_objects = UnapprovedEntryManager()
  109 
  110     # noinspection PyClassicStyleClass
  111     class Meta:
  112         """Meta options for the version class."""
  113         unique_together = (
  114             ('title', 'version', 'category'),
  115             ('version', 'slug'),
  116         )
  117         app_label = 'changes'
  118 
  119     def save(self, *args, **kwargs):
  120         if not self.pk:
  121             words = self.title.split()
  122             filtered_words = [t for t in words if t.lower() not in STOP_WORDS]
  123             new_list = ' '.join(filtered_words)
  124             self.slug = slugify(new_list)[:50]
  125         super(Entry, self).save(*args, **kwargs)
  126 
  127     def __unicode__(self):
  128         return u'%s' % self.title
  129 
  130     def get_absolute_url(self):
  131         return reverse('entry-detail', kwargs={
  132             'slug': self.slug,
  133             'version_slug': self.version.slug,
  134             'project_slug': self.version.project.slug
  135         })
  136 
  137     def funder_info_html(self):
  138         string = ""
  139         if self.funded_by and self.funder_url is None:
  140             string = ""
  141             return string
  142         elif self.funded_by and not self.funder_url:
  143             string = "This feature was funded by %s " % self.funded_by
  144             return string
  145         elif self.funder_url and not self.funded_by:
  146             string = "This feature was funded by [%s](%s)" % (
  147                 self.funder_url, self.funder_url)
  148             return string
  149         elif self.funded_by and self.funder_url:
  150             string = "This feature was funded by [%s](%s)" % (
  151                 self.funded_by, self.funder_url)
  152             return string
  153         else:
  154             return string
  155 
  156     def developer_info_html(self):
  157         string = ""
  158         if self.developed_by and self.developer_url is None:
  159             string = ""
  160             return string
  161         elif self.developed_by and not self.developer_url:
  162             string = "This feature was developed by %s " % self.developed_by
  163             return string
  164         elif self.developer_url and not self.developed_by:
  165             string = "This feature was developed by [%s](%s)" % (
  166                 self.developer_url, self.developer_url)
  167             return string
  168         elif self.developed_by and self.developer_url:
  169             string = "This feature was developed by [%s](%s)" % (
  170                 self.developed_by, self.developer_url)
  171             return string
  172         else:
  173             return string
  174
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/django_project/changes/models/entry.py b/django_project/changes/models/entry.py
  --- a/django_project/changes/models/entry.py
  +++ b/django_project/changes/models/entry.py
  @@ -129,9 +129,7 @@
   
       def get_absolute_url(self):
           return reverse('entry-detail', kwargs={
  -            'slug': self.slug,
  -            'version_slug': self.version.slug,
  -            'project_slug': self.version.project.slug
  +            'pk': self.id
           })
   
       def funder_info_html(self):
  
verification_info: {"golden_diff": "diff --git a/django_project/changes/models/entry.py b/django_project/changes/models/entry.py\n--- a/django_project/changes/models/entry.py\n+++ b/django_project/changes/models/entry.py\n@@ -129,9 +129,7 @@\n \n     def get_absolute_url(self):\n         return reverse('entry-detail', kwargs={\n-            'slug': self.slug,\n-            'version_slug': self.version.slug,\n-            'project_slug': self.version.project.slug\n+            'pk': self.id\n         })\n \n     def funder_info_html(self):\n", "issue": "Atom feed gets a 500 error\nSee http://sentry.kartoza.com/kartoza/projecta-live/group/5846/\n\nProblem is cause by models/entry.py get_absolute_url() method which still uses old slug system to resolve path to an entry.\n\n", "before_files": [{"content": "# coding=utf-8\n\"\"\"Models for changelog entries.\"\"\"\nfrom django.core.urlresolvers import reverse\nfrom django.utils.text import slugify\nimport os\nimport logging\nfrom core.settings.contrib import STOP_WORDS\nfrom django.conf.global_settings import MEDIA_ROOT\nfrom django.db import models\nfrom embed_video.fields import EmbedVideoField\nfrom django.contrib.auth.models import User\n\nlogger = logging.getLogger(__name__)\n\n\nclass ApprovedEntryManager(models.Manager):\n    \"\"\"Custom entry manager that shows only approved records.\"\"\"\n\n    def get_queryset(self):\n        \"\"\"Query set generator\"\"\"\n        return super(\n            ApprovedEntryManager, self).get_queryset().filter(\n                approved=True)\n\n\nclass UnapprovedEntryManager(models.Manager):\n    \"\"\"Custom entry manager that shows only unapproved records.\"\"\"\n\n    def get_queryset(self):\n        \"\"\"Query set generator\"\"\"\n        return super(\n            UnapprovedEntryManager, self).get_queryset().filter(\n                approved=False)\n\n\nclass Entry(models.Model):\n    \"\"\"An entry is the basic unit of a changelog.\"\"\"\n    title = models.CharField(\n        help_text='Feature title for this changelog entry.',\n        max_length=255,\n        null=False,\n        blank=False,\n        unique=False)  # Unique together rule applies in meta class\n\n    description = models.TextField(\n        null=True,\n        blank=True,\n        help_text='Describe the new feature. Markdown is supported.')\n\n    image_file = models.ImageField(\n        help_text=(\n            'A image that is related to this visual changelog entry. '\n            'Most browsers support dragging the image directly on to the '\n            '\"Choose File\" button above.'),\n        upload_to=os.path.join(MEDIA_ROOT, 'images/entries'),\n        blank=True)\n\n    image_credits = models.CharField(\n        help_text='Who should be credited for this image?',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    video = EmbedVideoField(\n        verbose_name='Youtube video',\n        help_text='Paste your youtube video link',\n        null=True,\n        blank=True)\n\n    funded_by = models.CharField(\n        help_text='Input the funder name.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    funder_url = models.CharField(\n        help_text='Input the funder URL.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    developed_by = models.CharField(\n        help_text='Input the developer name.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    developer_url = models.CharField(\n        help_text='Input the developer URL.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    approved = models.BooleanField(\n        help_text=(\n            'Whether this entry has been approved for use by the '\n            'project owner.'),\n        default=False\n    )\n    author = models.ForeignKey(User)\n    slug = models.SlugField()\n    # noinspection PyUnresolvedReferences\n    version = models.ForeignKey('Version')\n    # noinspection PyUnresolvedReferences\n    category = models.ForeignKey('Category')\n    objects = models.Manager()\n    approved_objects = ApprovedEntryManager()\n    unapproved_objects = UnapprovedEntryManager()\n\n    # noinspection PyClassicStyleClass\n    class Meta:\n        \"\"\"Meta options for the version class.\"\"\"\n        unique_together = (\n            ('title', 'version', 'category'),\n            ('version', 'slug'),\n        )\n        app_label = 'changes'\n\n    def save(self, *args, **kwargs):\n        if not self.pk:\n            words = self.title.split()\n            filtered_words = [t for t in words if t.lower() not in STOP_WORDS]\n            new_list = ' '.join(filtered_words)\n            self.slug = slugify(new_list)[:50]\n        super(Entry, self).save(*args, **kwargs)\n\n    def __unicode__(self):\n        return u'%s' % self.title\n\n    def get_absolute_url(self):\n        return reverse('entry-detail', kwargs={\n            'slug': self.slug,\n            'version_slug': self.version.slug,\n            'project_slug': self.version.project.slug\n        })\n\n    def funder_info_html(self):\n        string = \"\"\n        if self.funded_by and self.funder_url is None:\n            string = \"\"\n            return string\n        elif self.funded_by and not self.funder_url:\n            string = \"This feature was funded by %s \" % self.funded_by\n            return string\n        elif self.funder_url and not self.funded_by:\n            string = \"This feature was funded by [%s](%s)\" % (\n                self.funder_url, self.funder_url)\n            return string\n        elif self.funded_by and self.funder_url:\n            string = \"This feature was funded by [%s](%s)\" % (\n                self.funded_by, self.funder_url)\n            return string\n        else:\n            return string\n\n    def developer_info_html(self):\n        string = \"\"\n        if self.developed_by and self.developer_url is None:\n            string = \"\"\n            return string\n        elif self.developed_by and not self.developer_url:\n            string = \"This feature was developed by %s \" % self.developed_by\n            return string\n        elif self.developer_url and not self.developed_by:\n            string = \"This feature was developed by [%s](%s)\" % (\n                self.developer_url, self.developer_url)\n            return string\n        elif self.developed_by and self.developer_url:\n            string = \"This feature was developed by [%s](%s)\" % (\n                self.developed_by, self.developer_url)\n            return string\n        else:\n            return string\n", "path": "django_project/changes/models/entry.py"}], "after_files": [{"content": "# coding=utf-8\n\"\"\"Models for changelog entries.\"\"\"\nfrom django.core.urlresolvers import reverse\nfrom django.utils.text import slugify\nimport os\nimport logging\nfrom core.settings.contrib import STOP_WORDS\nfrom django.conf.global_settings import MEDIA_ROOT\nfrom django.db import models\nfrom embed_video.fields import EmbedVideoField\nfrom django.contrib.auth.models import User\n\nlogger = logging.getLogger(__name__)\n\n\nclass ApprovedEntryManager(models.Manager):\n    \"\"\"Custom entry manager that shows only approved records.\"\"\"\n\n    def get_queryset(self):\n        \"\"\"Query set generator\"\"\"\n        return super(\n            ApprovedEntryManager, self).get_queryset().filter(\n                approved=True)\n\n\nclass UnapprovedEntryManager(models.Manager):\n    \"\"\"Custom entry manager that shows only unapproved records.\"\"\"\n\n    def get_queryset(self):\n        \"\"\"Query set generator\"\"\"\n        return super(\n            UnapprovedEntryManager, self).get_queryset().filter(\n                approved=False)\n\n\nclass Entry(models.Model):\n    \"\"\"An entry is the basic unit of a changelog.\"\"\"\n    title = models.CharField(\n        help_text='Feature title for this changelog entry.',\n        max_length=255,\n        null=False,\n        blank=False,\n        unique=False)  # Unique together rule applies in meta class\n\n    description = models.TextField(\n        null=True,\n        blank=True,\n        help_text='Describe the new feature. Markdown is supported.')\n\n    image_file = models.ImageField(\n        help_text=(\n            'A image that is related to this visual changelog entry. '\n            'Most browsers support dragging the image directly on to the '\n            '\"Choose File\" button above.'),\n        upload_to=os.path.join(MEDIA_ROOT, 'images/entries'),\n        blank=True)\n\n    image_credits = models.CharField(\n        help_text='Who should be credited for this image?',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    video = EmbedVideoField(\n        verbose_name='Youtube video',\n        help_text='Paste your youtube video link',\n        null=True,\n        blank=True)\n\n    funded_by = models.CharField(\n        help_text='Input the funder name.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    funder_url = models.CharField(\n        help_text='Input the funder URL.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    developed_by = models.CharField(\n        help_text='Input the developer name.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    developer_url = models.CharField(\n        help_text='Input the developer URL.',\n        max_length=255,\n        null=True,\n        blank=True)\n\n    approved = models.BooleanField(\n        help_text=(\n            'Whether this entry has been approved for use by the '\n            'project owner.'),\n        default=False\n    )\n    author = models.ForeignKey(User)\n    slug = models.SlugField()\n    # noinspection PyUnresolvedReferences\n    version = models.ForeignKey('Version')\n    # noinspection PyUnresolvedReferences\n    category = models.ForeignKey('Category')\n    objects = models.Manager()\n    approved_objects = ApprovedEntryManager()\n    unapproved_objects = UnapprovedEntryManager()\n\n    # noinspection PyClassicStyleClass\n    class Meta:\n        \"\"\"Meta options for the version class.\"\"\"\n        unique_together = (\n            ('title', 'version', 'category'),\n            ('version', 'slug'),\n        )\n        app_label = 'changes'\n\n    def save(self, *args, **kwargs):\n        if not self.pk:\n            words = self.title.split()\n            filtered_words = [t for t in words if t.lower() not in STOP_WORDS]\n            new_list = ' '.join(filtered_words)\n            self.slug = slugify(new_list)[:50]\n        super(Entry, self).save(*args, **kwargs)\n\n    def __unicode__(self):\n        return u'%s' % self.title\n\n    def get_absolute_url(self):\n        return reverse('entry-detail', kwargs={\n            'pk': self.id\n        })\n\n    def funder_info_html(self):\n        string = \"\"\n        if self.funded_by and self.funder_url is None:\n            string = \"\"\n            return string\n        elif self.funded_by and not self.funder_url:\n            string = \"This feature was funded by %s \" % self.funded_by\n            return string\n        elif self.funder_url and not self.funded_by:\n            string = \"This feature was funded by [%s](%s)\" % (\n                self.funder_url, self.funder_url)\n            return string\n        elif self.funded_by and self.funder_url:\n            string = \"This feature was funded by [%s](%s)\" % (\n                self.funded_by, self.funder_url)\n            return string\n        else:\n            return string\n\n    def developer_info_html(self):\n        string = \"\"\n        if self.developed_by and self.developer_url is None:\n            string = \"\"\n            return string\n        elif self.developed_by and not self.developer_url:\n            string = \"This feature was developed by %s \" % self.developed_by\n            return string\n        elif self.developer_url and not self.developed_by:\n            string = \"This feature was developed by [%s](%s)\" % (\n                self.developer_url, self.developer_url)\n            return string\n        elif self.developed_by and self.developer_url:\n            string = \"This feature was developed by [%s](%s)\" % (\n                self.developed_by, self.developer_url)\n            return string\n        else:\n            return string\n", "path": "django_project/changes/models/entry.py"}]}