問題，如果條件循環

Question

template.html

在Django是可以檢查的條件就是這樣，我得到的錯誤在這行（incident.other_location或位置）。

{%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%} 

我收到此錯誤

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

Answer 1

不能使用()（括號內）的操作組合，而是你可以按照運營商的優先級，其有以下幾種：

• 或
• 和
• 不是
• 在
• ==，=，<，>，「< =「> =

的or評測之前：

{%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%} 

後or評價：

{%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%}