python-3.x - TemplateDoesNotExist 位于 /music/1/favourite/music/details.html
问题描述
我是 Django 新手,我使用的是 2.0.7 版。我已经创建了名为 details.html 的模板,但它仍然没有显示
我指的视频教程是https://www.youtube.com/watch?v=qgGIqRFvFFk&list=PL6gx4Cwl9DGBlmzzFcLgDhKTTfNLfX1IK&index=24
我得到的错误是这个
Environment:
Request Method: POST
Request URL: http://127.0.0.1:8000/music/1/favourite/
Django Version: 2.0.7
Python Version: 3.6.6
Installed Applications:
['music.apps.MusicConfig',
'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']
Template loader postmortem
Django tried loading these templates, in this order:
Using engine django:
* django.template.loaders.app_directories.Loader: C:\Users\Adesh\Desktop\website\music\templates\music\details.html (Source does not exist)
* django.template.loaders.app_directories.Loader: C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\contrib\admin\templates\music\details.html (Source does not exist)
* django.template.loaders.app_directories.Loader: C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\contrib\auth\templates\music\details.html (Source does not exist)
Traceback:
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\utils\datastructures.py" in __getitem__
77. list_ = super().__getitem__(key)
During handling of the above exception ('song'), another exception occurred:
File "C:\Users\Adesh\Desktop\website\music\views.py" in favourite
22. selected_song = album.song_set.get(pk=request.POST['song'])
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\utils\datastructures.py" in __getitem__
79. raise MultiValueDictKeyError(key)
During handling of the above exception ('song'), another exception occurred:
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\exception.py" in inner
35. response = get_response(request)
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\base.py" in _get_response
128. response = self.process_exception_by_middleware(e, request)
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\handlers\base.py" in _get_response
126. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Adesh\Desktop\website\music\views.py" in favourite
26. 'error_message':"You did not select a valid song",
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\shortcuts.py" in render
36. content = loader.render_to_string(template_name, context, request, using=using)
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\template\loader.py" in render_to_string
61. template = get_template(template_name, using=using)
File "C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\template\loader.py" in get_template
19. raise TemplateDoesNotExist(template_name, chain=chain)
Exception Type: TemplateDoesNotExist at /music/1/favourite/
Exception Value: music/details.html
我的模板如下命名为 details.html
<img src="{{ album.album_logo}}">
<h1>{{ album.album_title }}</h1>
<h2>{{ album.artist }}</h2>
{% if error_message %}
<p><strong>{{ error_message }}</strong></p>
{% endif %}
<form action="{% url 'music:favourite' album.id %}" method="post" >
{% csrf_token %}
{% for song in album.song_set.all %}
<input type="radio" id="song{{ forloop.counter }}" name="song"
value="{{ song.id }}">
<label for="song {{ forloop.counter }}">
{{ song.song_title }}
{% if song.is_favourite %}
<img src="random_image.png"/>
{% endif %}
</label><br>
{% endfor %}
<input tye="submit" value="Favourite">
</form>
解决方案
检查设置中的模板文件夹,在这部分错误中您可以看到 Django 找不到模板:
Using engine django:
* django.template.loaders.app_directories.Loader: C:\Users\Adesh\Desktop\website\music\templates\music\details.html (Source does not exist)
* django.template.loaders.app_directories.Loader: C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\contrib\admin\templates\music\details.html (Source does not exist)
* django.template.loaders.app_directories.Loader: C:\Users\Adesh\AppData\Local\Programs\Python\Python36\lib\site-packages\django\contrib\auth\templates\music\details.html (Source does not exist)
这些是 Django 尝试在其中查找模板的目录。Django 查找的目录在项目的 settings.py 文件中指定,此变量:TEMPLATE_DIRS 或 TEMPLATES 具有 Django 查找模板的路径。
将模板移动到这些文件夹之一或将保存模板的文件夹添加到此变量。
另请参阅有关模板的 Django 文档的这一部分: https ://docs.djangoproject.com/en/2.0/topics/templates/#django.template.backends.base.Template.render
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