我一直很难弄清楚到底是什么导致了我的代码中的错误。我的主页呈现出来，但是当我尝试打开子页面时，出现预期的字符串错误。任何调试此功能的帮助将不胜感激。
下面的跟踪：
Internal Server Error: /resonate/page-2/
Traceback (most recent call last):
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/core/handlers/base.py", line 156, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/core/handlers/base.py", line 154, in _get_response
response = response.render()
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/response.py", line 106, in render
self.content = self.rendered_content
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/response.py", line 83, in rendered_content
content = template.render(context, self._request)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/backends/django.py", line 61, in render
return self.template.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 171, in render
return self._render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 163, in _render
return self.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 937, in render
bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 904, in render_annotated
return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/loader_tags.py", line 150, in render
return compiled_parent._render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 163, in _render
return self.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 937, in render
bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 904, in render_annotated
return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/loader_tags.py", line 62, in render
result = block.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 937, in render
bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 904, in render_annotated
return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/loader_tags.py", line 62, in render
result = block.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 937, in render
bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 904, in render_annotated
return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 987, in render
output = self.filter_expression.resolve(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py", line 698, in resolve
new_obj = func(obj, *arg_vals)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/templatetags/wagtailcore_tags.py", line 75, in richtext
html = expand_db_html(value)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/rich_text/__init__.py", line 30, in expand_db_html
return FRONTEND_REWRITER(html)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/rich_text/rewriters.py", line 81, in __call__
html = rewrite(html)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/rich_text/rewriters.py", line 71, in __call__
return FIND_A_TAG.sub(self.replace_tag, html)
TypeError: expected string or bytes-like object
Django Version: 2.1.1
Python Version: 3.6.6
Installed Applications:
['accounts',
'home',
'search',
'design_system',
'wagtail.contrib.settings',
'wagtail.contrib.forms',
'wagtail.contrib.redirects',
'wagtail.contrib.routable_page',
'wagtail.contrib.modeladmin',
'wagtailmenus',
'wagtail.embeds',
'wagtail.sites',
'wagtail.users',
'wagtail.snippets',
'wagtail.documents',
'wagtail.images',
'wagtail.search',
'dashboard',
'wagtail.admin',
'wagtail.core',
'modelcluster',
'taggit',
'condensedinlinepanel',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'wagtail.core.middleware.SiteMiddleware',
'wagtail.contrib.redirects.middleware.RedirectMiddleware']
Template error:
In template /Users/saeahmad/Desktop/code/auxe/AUXE_Design_System/auxe_cms/design_system/templates/design_system/base.html, error at line 0
expected string or bytes-like object
1 : {% load static wagtailcore_tags wagtailimages_tags menu_tags %}
2 : <!DOCTYPE html>
3 : <html lang="en">
4 :
5 : <head>
6 : <meta charset="utf-8">
7 : <meta http-equiv="X-UA-Compatible" content="IE=edge">
8 : <meta name="viewport" content="width=device-width, initial-scale=1">
9 :
10 : <title>{% block title %}{{ main_page.title }}{% if main_page.description %} | {{ main_page.description }}{% endif %}{% endblock title %}</title>
Traceback:
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
34. response = get_response(request)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
156. response = self.process_exception_by_middleware(e, request)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
154. response = response.render()
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/response.py" in render
106. self.content = self.rendered_content
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/response.py" in rendered_content
83. content = template.render(context, self._request)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/backends/django.py" in render
61. return self.template.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render
171. return self._render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in _render
163. return self.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render
937. bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render_annotated
904. return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/loader_tags.py" in render
150. return compiled_parent._render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in _render
163. return self.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render
937. bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render_annotated
904. return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/loader_tags.py" in render
62. result = block.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render
937. bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render_annotated
904. return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/loader_tags.py" in render
62. result = block.nodelist.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render
937. bit = node.render_annotated(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render_annotated
904. return self.render(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in render
987. output = self.filter_expression.resolve(context)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/django/template/base.py" in resolve
698. new_obj = func(obj, *arg_vals)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/templatetags/wagtailcore_tags.py" in richtext
75. html = expand_db_html(value)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/rich_text/__init__.py" in expand_db_html
30. return FRONTEND_REWRITER(html)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/rich_text/rewriters.py" in __call__
81. html = rewrite(html)
File "/Users/saeahmad/.pyenv/versions/auxe_cms/lib/python3.6/site-packages/wagtail/core/rich_text/rewriters.py" in __call__
71. return FIND_A_TAG.sub(self.replace_tag, html)
Exception Type: TypeError at /resonate/page-2/
Exception Value: expected string or bytes-like object
我也浏览了我的base.html文件，但似乎找不到任何错误，因此我认为内容页面的模型中可能有此错误？
class ContentPage(Page):
body = StreamField([
('heading', blocks.CharBlock(classname="full title")),
('paragraph', blocks.RichTextBlock()),
('rich_text', blocks.RichTextBlock(icon='doc-full', label='Rich Text')),
('two_columns', TwoColumnBlock()),
('image', ImageChooserBlock(icon="image")),
('embedded_video', EmbedBlock(icon="media")),
('html', blocks.RawHTMLBlock(icon='site', label='HTML')),
],null=True,blank=True)
content_panels = Page.content_panels + [
StreamFieldPanel('body'),
]
@property
def main_page(self):
return self.get_parent().specific
def get_context(self, request, *args, **kwargs):
context = super(ContentPage, self).get_context(request, *args, **kwargs)
context['main_page'] = self.main_page
context['content'] = self
return context
答案 0 :(得分：2)
堆栈跟踪表明您正在将无效的非字符串值传递给模板上某个地方的|richtext过滤器。允许的值为字符串None和StreamField RichTextBlocks中使用的特殊wagtail.core.rich_text.RichText类型。
（不幸的是，a current Django bug阻止在模板中显示错误的正确位置，因此没有立即找到哪个特定|richtext标签失败的方法-我建议暂时删除选定的标签直到找到受影响的代码。）