if条件循环中的问题

Question

template.html

在django中可以检查这样的情况，我在这一行收到错误（incident.other_location或location）。

{%if newreport_tab and reportperson and incident.manual_date and media  and followup and (incident.other_location or location) and incident.other_incident_type and types%}<a href="{% url incident.views.savereport %}">{% include "buttons/saveandclose.html" %}</a>{%else%}{% include "buttons/saveandclose.html" %}{%endif%}

我收到此错误

"TemplateSyntaxError at /report/savereport/
Could not parse the remainder: '(incident.other_location' from 'and(incident.other_location'"

Answer 1

您不能使用()（括号）来组合操作，而是可以遵循以下运算符的优先级：

• 或
• 和
• 不
• 在
• ==，！=，＆lt;，＆gt;，“＆lt; =”，＆gt; =

在or评估之前：

{%if newreport_tab and reportperson and incident.manual_date and media  and followup and incident.other_location or location and incident.other_incident_type and types%}<a href="{% url incident.views.savereport %}">{% include "buttons/saveandclose.html" %}</a>{%else%}{% include "buttons/saveandclose.html" %}{%endif%}

or评估后：

{%if newreport_tab and reportperson and incident.manual_date and media  and followup and someresult and incident.other_incident_type and types%}<a href="{% url incident.views.savereport %}">{% include "buttons/saveandclose.html" %}</a>{%else%}{% include "buttons/saveandclose.html" %}{%endif%}