Flask，从复选框中获取值并将结果传递给另一个模板(Flask, get value from checkbox and pass the result to another template)

Flask，从复选框中获取值并将结果传递给另一个模板(Flask, get value from checkbox and pass the result to another template)

我正在使用Weasyprint，在Flask Web App中显示一些jinja模板。 我有这个json。

value=["1","2","3","4"]

我想在if语句中将'value'传递给另一个jinja模板。

{% if (value|int =["1", "2", "3", "4"]) %} {% include 'pages/page1.html' %} {% else %} {% include 'pages/page2.html' %} {% endif %}

但是这显示了错误，

TemplateSyntaxError: expected token ')', got '='

我以为我必须将json转换为int才能使其工作。

I am using Weasyprint, to display some jinja templates in a Flask Web App. I have this json.

value=["1","2","3","4"]

I want to pass 'value' to another jinja template in an if statement.

{% if (value|int =["1", "2", "3", "4"]) %} {% include 'pages/page1.html' %} {% else %} {% include 'pages/page2.html' %} {% endif %}

But this shows the error,

TemplateSyntaxError: expected token ')', got '='

I thought I had to convert json to int in order to make it work.

最满意答案

Jinja2 int过滤器将在列表中失败，因为它将试图将其转换为单个整数值。 因此它将返回0 。 另外=是一个赋值运算符， ==是一个比较器。 试试这个来得到预期的结果：

{% if value|join("|") == "1|2|3|4|5" %} {% include 'pages/page1.html' %} {% else %} {% include 'pages/page2.html' %} {% endif %}

The Jinja2 int filter will fail on your list as it will be trying to cast it to a single integer value. Therefore it will return 0. Also = is an assignment operator and == is a comparator. Try this to get the intended result:

{% if value|join("|") == "1|2|3|4|5" %} {% include 'pages/page1.html' %} {% else %} {% include 'pages/page2.html' %} {% endif %}