In my admin, I am getting errors for only one class, ‘unicode’ object has no attribute ‘utcoffset’. I have looked at a few other similar questions and have been unable to solve it. Any ideas on how to fix it? The traceback is below the class.
class PartRequest(models.Model): pub_date = models.DateTimeField('date published', default = '2016-08-10', blank=True) user = models.ForeignKey(settings.AUTH_USER_MODEL, default=1) part_request_number = models.CharField(_('Part Request Number'),max_length=10, default = number) serialnumber = models.CharField(_('Serial Number'),max_length=10, default= snumber) partnumber = models.CharField(_('Part Number'), max_length = 500, default = 'e.g. 002109_1') build_type = models.ForeignKey(buildtyp, related_name='BuildType', null=True) project_manager = models.ForeignKey(Person, related_name = 'Manager', null = True) requester = models.ForeignKey(Person, related_name = 'Requester', null = True) project_id = models.ForeignKey(Project, related_name = 'Project', null=True) ordernumber = models.PositiveIntegerField(_('Order Number'), default=0) description = models.CharField(_('Description'), max_length=500) quantityrequired = models.PositiveIntegerField(_('Quantity'), default=0) sensitivity = models.ForeignKey(sens, related_name='Sensitivity', null=True) build_risk = models.ForeignKey(buildrisk, related_name= 'Risk', null=True) daterequired = models.DateField(_('Date Required'), default = '2000-08-16') image_or_pdf_upload = models.FileField(upload_to = upload_location, null=True, blank = True) material = models.ForeignKey(mat, related_name = 'Material', null=True) other_requirements = models.CharField(_('Other Requirements'), max_length = 100, default ='') cert = models.CharField(_('Certificate of Conformity'), max_length=50, default ='') location = models.ForeignKey(locat, related_name='Location', null=True) identification_method = models.ForeignKey(MOI, related_name= 'MOI', null=True) packing = models.CharField(_('Packing Specified by End User'),max_length=100, default = 'Please specify here') qainfo = models.CharField(_('QA Information with Delivery'),max_length=100, default = 'Please specify here') shipping = models.CharField(_('Shipping Details'),max_length=100, default = 'Please specify here') slug = models.SlugField(unique=True, null=True) def __unicode__(self): return (self.part_request_number) def get_absolute_url(self): return "/buildpage/%s/" %(self.slug) def create_slug(instance, new_slug=None): slug = slugify(instance.part_request_number) if new_slug is not None: slug = new_slug qs = PartRequest.objects.filter(slug=slug).order_by("-id") exists = qs.exists() if exists: new_slug = "%s-%s" %(slug, qs.first().id) return create_slug(instance, new_slug=new_slug) return slug def pre_save_receiver(sender, instance, *args, **kwargs): if not instance.slug: instance.slug = create_slug(instance) pre_save.connect(pre_save_receiver, sender = PartRequest)
Traceback:
Environment: Request Method: GET Request URL: http://127.0.0.1:8000/admin/buildpage/partrequest/add/?_changelist_filters=requester__id__exact%3D2 Django Version: 1.9.2 Python Version: 2.7.10 Installed Applications: ('django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'prodman', 'video', 'tande', 'assets', 'buildpage', 'concept', 'smart_selects') Installed Middleware: ('django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', 'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.auth.middleware.SessionAuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', 'django.middleware.security.SecurityMiddleware') Template error: In template /Library/Python/2.7/site-packages/django/contrib/admin/templates/admin/change_form.html, error at line 33 'unicode' object has no attribute 'utcoffset' 23 : {% endblock %} 24 : {% endif %} 25 : 26 : {% block content %}<div id="content-main"> 27 : {% block object-tools %} 28 : {% if change %}{% if not is_popup %} 29 : <ul class="object-tools"> 30 : {% block object-tools-items %} 31 : <li> 32 : {% url opts|admin_urlname:'history' original.pk|admin_urlquote as history_url %} 33 : <a href="{% add_preserved_filters histo ry_url %}" class= "historylink">{% trans "History" %}</a> 34 : </li> 35 : {% if has_absolute_url %}<li><a href="{{ absolute_url }}" class="viewsitelink">{% trans "View on site" %}</a></li>{% endif %} 36 : {% endblock %} 37 : </ul> 38 : {% endif %}{% endif %} 39 : {% endblock %} 40 : <form {% if has_file_field %}enctype="multipart/form-data" {% endif %}action="{{ form_url }}" method="post" id="{{ opts.model_name }}_form" novalidate>{% csrf_token %}{% block form_top %}{% endblock %} 41 : <div> 42 : {% if is_popup %}<input type="hidden" name="{{ is_popup_var }}" value="1" />{% endif %} 43 : {% if to_field %}<input type="hidden" name="{{ to_field_var }}" value="{{ to_field }}" />{% endif %} Traceback: File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response 174. response = self.process_exception_by_middleware(e, request) File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response 172. response = response.render() File "/Library/Python/2.7/site-packages/django/template/response.py" in render 160. self.content = self.rendered_content File "/Library/Python/2.7/site-packages/django/template/response.py" in rendered_content 137. content = template.render(context, self._request) File "/Library/Python/2.7/site-packages/django/template/backends/django.py" in render 95. return self.template.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 206. return self._render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/loader_tags.py" in render 173. return compiled_parent._render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/loader_tags.py" in render 173. return compiled_parent._render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/loader_tags.py" in render 69. result = block.nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/loader_tags.py" in render 69. result = block.nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/loader_tags.py" in render 209. return template.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 208. return self._render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in _render 197. return self.nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/defaulttags.py" in render 220. nodelist.append(node.render_annotated(context)) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/defaulttags.py" in render 326. return nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/defaulttags.py" in render 326. return nodelist.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 992. bit = node.render_annotated(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_annotated 959. return self.render(context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render 1049. return render_value_in_context(output, context) File "/Library/Python/2.7/site-packages/django/template/base.py" in render_value_in_context 1026. value = force_text(value) File "/Library/Python/2.7/site-packages/django/utils/encoding.py" in force_text 78. s = six.text_type(s) File "/Library/Python/2.7/site-packages/django/utils/html.py" in <lambda> 381. klass.__unicode__ = lambda self: mark_safe(klass_unicode(self)) File "/Library/Python/2.7/site-packages/django/forms/boundfield.py" in __str__ 43. return self.as_widget() File "/Library/Python/2.7/site-packages/django/forms/boundfield.py" in as_widget 101. return force_text(widget.render(name, self.value(), attrs=attrs)) File "/Library/Python/2.7/site-packages/django/forms/widgets.py" in render 832. value = self.decompress(value) File "/Library/Python/2.7/site-packages/django/forms/widgets.py" in decompress 904. value = to_current_timezone(value) File "/Library/Python/2.7/site-packages/django/forms/utils.py" in to_current_timezone 190. if settings.USE_TZ and value is not None and timezone.is_aware(value): File "/Library/Python/2.7/site-packages/django/utils/timezone.py" in is_aware 340. return value.utcoffset() is not None Exception Type: AttributeError at /admin/buildpage/partrequest/add/ Exception Value: 'unicode' object has no attribute 'utcoffset'
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Answer
The default value for your pub_date
field is a string. It should be an instance of datetime.date
.