从JsRender中的嵌套块访问父变量

问题描述

如何从嵌套的for访问props的key?

{{props object.items}}
    {{:key}}
    {{for prop.other_items}}
        {{:key}} //here I want to print the key from props

我尝试过:

{{:key}}
{{:#key}}
{{:#parent.key}}
{{:#parent.parent.key}}
{{:~root.key}}

推荐答案

以下是三种替代方法:

提供key作为上下文模板变量，因此在{{for}}块中可用:

Provide the key as a contextual template variable, so it is available in the {{for}} block:

{{props object.items}}
    {{:key}}
    {{for prop.other_items ~outerKey=key}}
        Outer key: {{:~outerKey}}
   {{/for}}
{{/props}}

提供{{props}}块({key: ..., prop: ...}对象)的数据项作为上下文模板变量，因此在{{for}}块中可用:

Provide the data item of the {{props}} block (the {key: ..., prop: ...} object) as a contextual template variable, so it is available in the {{for}} block:

{{props object.items itemVar="~outerProp"}}
    {{:key}}
    {{for prop.other_items}}
        Outer key: {{:~outerProp.key}}
    {{/for}}
{{/props}}

逐步浏览父视图(数组视图，然后显示道具项目视图)并获取数据项({key: ..., prop: ...}对象):

Step up through the parent views (array view, then props item view) and get the data item (the {key: ..., prop: ...} object):

{{props object.items}}
    {{:key}}
    {{for prop.other_items}}
        Outer key: {{:#parent.parent.data.key}}
    {{/for}}
{{/props}}

这是对Matias先前问题的相关答复的链接: https://stackoverflow.com/a/31362057 /1054484

And here is a link to a related reply to a previous question from Matias: https://stackoverflow.com/a/31362057/1054484

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