Django TemplateSyntaxError：模板呈现时出错 [英] Django TemplateSyntaxError: Error during template rendering
问题描述
我正在使用Python / Django项目，之前并没有真正使用过。当我点击网站上某个页面上的一个链接时，我正在收到一个 TemplateSyntaxError 。
I am working on a Python/ Django project, having not really used either much before. I am currently getting a TemplateSyntaxError when clicking a link on one of the pages on my website.
此链接带您到（破碎的页面的URL）是： costing / id / payment-report / overview &异常值说：
The URL that this link takes you to (the URL for the broken page) is: costing/id/payment-report/overview & the exception value says:
第87行上的无效块标记：'date_to_display'，预期'elif'，'else'或'endif' 。您是否忘记注册或加载此标签？
Invalid block tag on line 87: 'date_to_display', expected 'elif', 'else' or 'endif'. Did you forget to register or load this tag?
此页面的模板（HTML文件）本身并不具有此变量在任何地方。模板在文件夹结构中的位置是： costing / templates / costing / reports_post_deposit.html ，但是，另一个模板文件位于 pdf2_base.html ，它在结构中包含此变量：
The template (HTML file) itself for this page, doesn't actually have this variable anywhere in it. The location of the template in the folder structure is: costing/templates/costing/reports_post_deposit.html, however, there is another template file at costing/pdf2_base.html, which does contain this variable within the structure:
<body>
...
{% block content_payment_schedule %}
{% if not webview %}
<div>
<table>
...
<tr>
...
<td> {% date_to_display %} </td>
</tr>
</table>
</div>
{% endif %}
...
{% endblock %}
...
</body>
所以我可以看到这个模板中使用了它所抱怨的变量。 costing / id / payment-report / overview 中的页面用于从存储在数据库中的信息和用户提供的信息生成PDF文件。该PDF文件的结构在 costing / pdf2_base.html 文件中定义，而 date_to_display 是一个变量，其值我想添加到PDF生成...
So I can see that the variable it's complaining about is used within this template. The page at costing/id/payment-report/overview is used to generate a PDF file from information stored in the database, and information provided by the user. The structure of this PDF file is defined in the costing/pdf2_base.html file- and date_to_display is a a variable whose value I wanted to add to the PDF generated...
我需要做什么来注册或加载这个标签，错误消息说我需要做什么？ / p>
What do I need to do to register or load this tag, as the error message says I need to do?
推荐答案
在您使用的django模板中显示变量
when displaying a variable in django templates you use
{{variable}}
所以要解决你的问题变化
so to fix your issue change
{% date_to_display %}
into
{{date_to_display}}
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