英文:
Golang/Revel template engine template with variable
问题
有没有办法将在Golang/Revel模板中迭代的变量传递进去？
例如，在“header.html”中，我有以下代码：
{{range .templates}}
{{template "something" .}}
{{end}}
我该如何将当前数组的索引作为模板的参数使用？我尝试嵌入另一个{{.}}，就像Revel的示例中所示，但这会导致模板编译错误。这个变量会是类似于$i的东西吗？
例如，在Revel中进行迭代的方式如下：
{{range .messages}}
<p>{{.}}</p>
{{end}}
然而，我读到说.表示nil....这在Revel中是如何工作的？
英文:
Is there a way to pass a variable that was iterated over into a Golang/Revel template?
For example, in "header.html", I have
{{range .templates}}
{{template "something" .}}
{{end}}
How can I use current index from the array as an argument to template? I tried embedding another {{.}} as shown in the Revel examples, but that leads to a template compliation error. Would the variable be something like $i?
For example, iterating through in Revel is done like so
{{range .messages}}
<p>{{.}}</p>
{{end}}
However, I read that the . means nil.... how does this work in Revel?
答案1
得分: 2
如果我正确理解你的问题，你可以使用内置的range函数来获取索引，然后将其传递给模板，像这样：
{{range $i, $t := .templates}}
{{template "Template.html" $i}}
{{end}}
所以如果templates变量定义如下：
templates := []string{"One", "Two"}
并且Template.html包含以下内容：
This is from Template.html: {{ . }}<br>
那么最终的输出将是：
This is from Template.html: 0<br>
This is from Template.html: 1<br>
英文:
If I understand your question correctly, you can use the range built-in to get the index, and then pass it to the template like this:
{{range $i, $t := .templates}}
{{template "Template.html" $i}}
{{end}}
So if the templates variable was defined like this:
templates := []string{"One", "Two"}
and Template.html contains:
This is from Template.html: {{ . }}<br>
Then the final output will be:
This is from Template.html: 0<br>
This is from Template.html: 1<br>
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