Django 中模板的 if 条件这样为什么出错了? - V2EX
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cheyo
V2EX    Python

Django 中模板的 if 条件这样为什么出错了?

  •  
  •   cheyo 2014-10-30 20:33:05 +08:00 4351 次点击
    这是一个创建于 4053 天前的主题,其中的信息可能已经有所发展或是发生改变。
    {% if 1==house.status %}
    <span class="label label-success">
    {% elif 2==house.status %}
    <span class="label label-primary">
    {% elif 3==house.status %}
    <span class="label label-info">
    {% elif 4==house.status %}
    <span class="label label-default">
    {% else %}
    <span class="label label-danger">
    {% endif %}
    {{ house.get_status_display }}</span>

    错误信息:
    TemplateSyntaxError at /project/19607/
    Could not parse the remainder: '==house.status' from '1==house.status'

    谢谢
    10 条回复    2014-10-31 17:24:27 +08:00
    stillwater
        1
    stillwater  
       2014-10-30 20:34:40 +08:00
    用ifequal?
    virusdefender
        2
    virusdefender  
       2014-10-30 20:35:24 +08:00   1
    {% ifequal a "111" %}{% endifequal %}判断相等
    ericls
        3
    ericls  
       2014-10-30 21:43:11 +08:00 via Android   1
    if house.status == 1应该可以
    注意必须有空格
    cheyo
        4
    cheyo  
    OP
       2014-10-30 21:57:57 +08:00
    @ericls 果然加一个空格就行了
    @stillwater
    @virusdefender 用ifequal也行

    谢谢
    rcmerci
        5
    rcmerci  
       2014-10-30 22:03:23 +08:00
    模板里空格挺严格的
    mornlight
        6
    mornlight  
       2014-10-30 22:50:29 +08:00
    要有空格,如果你用Pycharm的话应该会提示你
    taobeier
        7
    taobeier  
       2014-10-31 00:00:18 +08:00
    不太习惯的话, 就用个IDE会稍微好点。
    tuteng
        8
    tuteng  
       2014-10-31 07:18:59 +08:00
    mark
    gevin
        9
    gevin  
       2014-10-31 13:43:52 +08:00
    如果house.status的类型是str,你的代码那个就成了:
    {% if 1=='1' %}

    这种情况下就会报错

    需要保持 '==' 两边值得类型一致
    nooper
        10
    nooper  
       2014-10-31 17:24:27 +08:00
    Try to remove the complex in the if cases.Just judge by integer , what if the status change , that's should not be hard code in the template. and you'd better add the logic into the views. or templatetags.
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