prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  datetimepicker unique ids
  <img width="980" alt="screen shot 2017-06-01 at 15 59 21" src="https://cloud.githubusercontent.com/assets/16354712/26683219/61f8eb4c-46e3-11e7-851b-148bff927bd4.png">
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `apps/contrib/widgets.py`
  Content:
  ```
  1 import datetime
  2 from itertools import chain
  3 
  4 import django_filters
  5 from django.contrib.staticfiles.storage import staticfiles_storage
  6 from django.db.models.fields import BLANK_CHOICE_DASH
  7 from django.forms import widgets as form_widgets
  8 from django.forms.widgets import flatatt
  9 from django.template.loader import render_to_string
  10 from django.utils import formats
  11 from django.utils.timezone import localtime
  12 from django.utils.translation import ugettext as _
  13 
  14 
  15 class DropdownLinkWidget(django_filters.widgets.LinkWidget):
  16     label = None
  17     right = False
  18     template = 'meinberlin_contrib/widgets/dropdown_link.html'
  19 
  20     def get_option_label(self, value, choices=()):
  21         option_label = BLANK_CHOICE_DASH[0][1]
  22 
  23         for v, label in chain(self.choices, choices):
  24             if str(v) == value:
  25                 option_label = label
  26                 break
  27 
  28         if option_label == BLANK_CHOICE_DASH[0][1]:
  29             option_label = _('All')
  30 
  31         return option_label
  32 
  33     def render(self, name, value, attrs=None, choices=()):
  34         all_choices = list(chain(self.choices, choices))
  35 
  36         if len(all_choices) <= 1:
  37             return ''
  38 
  39         if value is None:
  40             value = all_choices[0][0]
  41 
  42         _id = attrs.pop('id')
  43         final_attrs = flatatt(self.build_attrs(attrs))
  44         value_label = self.get_option_label(value, choices=choices)
  45 
  46         options = super().render(name, value, attrs={
  47             'class': 'dropdown-menu',
  48             'aria-labelledby': _id,
  49         }, choices=choices)
  50 
  51         return render_to_string(self.template, {
  52             'options': options,
  53             'id': _id,
  54             'attrs': final_attrs,
  55             'value_label': value_label,
  56             'label': self.label,
  57             'right': self.right,
  58         })
  59 
  60 
  61 class DateTimeInput(form_widgets.SplitDateTimeWidget):
  62     class Media:
  63         js = (
  64             staticfiles_storage.url('datepicker.js'),
  65         )
  66         css = {'all': [
  67             staticfiles_storage.url('datepicker.css'),
  68         ]}
  69 
  70     def render(self, name, value, attrs=None):
  71         date_attrs = self.build_attrs(attrs)
  72         date_attrs.update({
  73             'class': 'datepicker',
  74             'placeholder': formats.localize_input(datetime.date.today())
  75         })
  76         time_attrs = self.build_attrs(attrs)
  77         time_attrs.update({
  78             'class': 'timepicker',
  79             'placeholder': '00:00',
  80         })
  81 
  82         if isinstance(value, datetime.datetime):
  83             value = localtime(value)
  84             date = value.date()
  85             time = value.time()
  86         else:
  87             # value's just a list in case of an error
  88             date = value[0] if value else None
  89             time = value[1] if value else '00:00'
  90 
  91         return render_to_string('datetime_input.html', {
  92             'date': self.widgets[0].render(
  93                 name + '_0',
  94                 date,
  95                 date_attrs
  96             ),
  97             'time': self.widgets[1].render(
  98                 name + '_1',
  99                 time,
  100                 time_attrs
  101             )
  102         })
  103
  ```
  --- 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/apps/contrib/widgets.py b/apps/contrib/widgets.py
  --- a/apps/contrib/widgets.py
  +++ b/apps/contrib/widgets.py
  @@ -71,12 +71,14 @@
           date_attrs = self.build_attrs(attrs)
           date_attrs.update({
               'class': 'datepicker',
  -            'placeholder': formats.localize_input(datetime.date.today())
  +            'placeholder': formats.localize_input(datetime.date.today()),
  +            'id': name + '_date'
           })
           time_attrs = self.build_attrs(attrs)
           time_attrs.update({
               'class': 'timepicker',
               'placeholder': '00:00',
  +            'id': name + '_time'
           })
   
           if isinstance(value, datetime.datetime):
  
verification_info: {"golden_diff": "diff --git a/apps/contrib/widgets.py b/apps/contrib/widgets.py\n--- a/apps/contrib/widgets.py\n+++ b/apps/contrib/widgets.py\n@@ -71,12 +71,14 @@\n         date_attrs = self.build_attrs(attrs)\n         date_attrs.update({\n             'class': 'datepicker',\n-            'placeholder': formats.localize_input(datetime.date.today())\n+            'placeholder': formats.localize_input(datetime.date.today()),\n+            'id': name + '_date'\n         })\n         time_attrs = self.build_attrs(attrs)\n         time_attrs.update({\n             'class': 'timepicker',\n             'placeholder': '00:00',\n+            'id': name + '_time'\n         })\n \n         if isinstance(value, datetime.datetime):\n", "issue": "datetimepicker unique ids\n<img width=\"980\" alt=\"screen shot 2017-06-01 at 15 59 21\" src=\"https://cloud.githubusercontent.com/assets/16354712/26683219/61f8eb4c-46e3-11e7-851b-148bff927bd4.png\">\r\n\n", "before_files": [{"content": "import datetime\nfrom itertools import chain\n\nimport django_filters\nfrom django.contrib.staticfiles.storage import staticfiles_storage\nfrom django.db.models.fields import BLANK_CHOICE_DASH\nfrom django.forms import widgets as form_widgets\nfrom django.forms.widgets import flatatt\nfrom django.template.loader import render_to_string\nfrom django.utils import formats\nfrom django.utils.timezone import localtime\nfrom django.utils.translation import ugettext as _\n\n\nclass DropdownLinkWidget(django_filters.widgets.LinkWidget):\n    label = None\n    right = False\n    template = 'meinberlin_contrib/widgets/dropdown_link.html'\n\n    def get_option_label(self, value, choices=()):\n        option_label = BLANK_CHOICE_DASH[0][1]\n\n        for v, label in chain(self.choices, choices):\n            if str(v) == value:\n                option_label = label\n                break\n\n        if option_label == BLANK_CHOICE_DASH[0][1]:\n            option_label = _('All')\n\n        return option_label\n\n    def render(self, name, value, attrs=None, choices=()):\n        all_choices = list(chain(self.choices, choices))\n\n        if len(all_choices) <= 1:\n            return ''\n\n        if value is None:\n            value = all_choices[0][0]\n\n        _id = attrs.pop('id')\n        final_attrs = flatatt(self.build_attrs(attrs))\n        value_label = self.get_option_label(value, choices=choices)\n\n        options = super().render(name, value, attrs={\n            'class': 'dropdown-menu',\n            'aria-labelledby': _id,\n        }, choices=choices)\n\n        return render_to_string(self.template, {\n            'options': options,\n            'id': _id,\n            'attrs': final_attrs,\n            'value_label': value_label,\n            'label': self.label,\n            'right': self.right,\n        })\n\n\nclass DateTimeInput(form_widgets.SplitDateTimeWidget):\n    class Media:\n        js = (\n            staticfiles_storage.url('datepicker.js'),\n        )\n        css = {'all': [\n            staticfiles_storage.url('datepicker.css'),\n        ]}\n\n    def render(self, name, value, attrs=None):\n        date_attrs = self.build_attrs(attrs)\n        date_attrs.update({\n            'class': 'datepicker',\n            'placeholder': formats.localize_input(datetime.date.today())\n        })\n        time_attrs = self.build_attrs(attrs)\n        time_attrs.update({\n            'class': 'timepicker',\n            'placeholder': '00:00',\n        })\n\n        if isinstance(value, datetime.datetime):\n            value = localtime(value)\n            date = value.date()\n            time = value.time()\n        else:\n            # value's just a list in case of an error\n            date = value[0] if value else None\n            time = value[1] if value else '00:00'\n\n        return render_to_string('datetime_input.html', {\n            'date': self.widgets[0].render(\n                name + '_0',\n                date,\n                date_attrs\n            ),\n            'time': self.widgets[1].render(\n                name + '_1',\n                time,\n                time_attrs\n            )\n        })\n", "path": "apps/contrib/widgets.py"}], "after_files": [{"content": "import datetime\nfrom itertools import chain\n\nimport django_filters\nfrom django.contrib.staticfiles.storage import staticfiles_storage\nfrom django.db.models.fields import BLANK_CHOICE_DASH\nfrom django.forms import widgets as form_widgets\nfrom django.forms.widgets import flatatt\nfrom django.template.loader import render_to_string\nfrom django.utils import formats\nfrom django.utils.timezone import localtime\nfrom django.utils.translation import ugettext as _\n\n\nclass DropdownLinkWidget(django_filters.widgets.LinkWidget):\n    label = None\n    right = False\n    template = 'meinberlin_contrib/widgets/dropdown_link.html'\n\n    def get_option_label(self, value, choices=()):\n        option_label = BLANK_CHOICE_DASH[0][1]\n\n        for v, label in chain(self.choices, choices):\n            if str(v) == value:\n                option_label = label\n                break\n\n        if option_label == BLANK_CHOICE_DASH[0][1]:\n            option_label = _('All')\n\n        return option_label\n\n    def render(self, name, value, attrs=None, choices=()):\n        all_choices = list(chain(self.choices, choices))\n\n        if len(all_choices) <= 1:\n            return ''\n\n        if value is None:\n            value = all_choices[0][0]\n\n        _id = attrs.pop('id')\n        final_attrs = flatatt(self.build_attrs(attrs))\n        value_label = self.get_option_label(value, choices=choices)\n\n        options = super().render(name, value, attrs={\n            'class': 'dropdown-menu',\n            'aria-labelledby': _id,\n        }, choices=choices)\n\n        return render_to_string(self.template, {\n            'options': options,\n            'id': _id,\n            'attrs': final_attrs,\n            'value_label': value_label,\n            'label': self.label,\n            'right': self.right,\n        })\n\n\nclass DateTimeInput(form_widgets.SplitDateTimeWidget):\n    class Media:\n        js = (\n            staticfiles_storage.url('datepicker.js'),\n        )\n        css = {'all': [\n            staticfiles_storage.url('datepicker.css'),\n        ]}\n\n    def render(self, name, value, attrs=None):\n        date_attrs = self.build_attrs(attrs)\n        date_attrs.update({\n            'class': 'datepicker',\n            'placeholder': formats.localize_input(datetime.date.today()),\n            'id': name + '_date'\n        })\n        time_attrs = self.build_attrs(attrs)\n        time_attrs.update({\n            'class': 'timepicker',\n            'placeholder': '00:00',\n            'id': name + '_time'\n        })\n\n        if isinstance(value, datetime.datetime):\n            value = localtime(value)\n            date = value.date()\n            time = value.time()\n        else:\n            # value's just a list in case of an error\n            date = value[0] if value else None\n            time = value[1] if value else '00:00'\n\n        return render_to_string('datetime_input.html', {\n            'date': self.widgets[0].render(\n                name + '_0',\n                date,\n                date_attrs\n            ),\n            'time': self.widgets[1].render(\n                name + '_1',\n                time,\n                time_attrs\n            )\n        })\n", "path": "apps/contrib/widgets.py"}]}