英文:
Revel template multiple variables, access one inside the others range
问题
我有一个控制器传递了两个变量：
func (a App) Page() revel.Result {
var g []*G
...
return c.Render(p, g)
}
在我的.html文件中，我想要遍历g。是否可以在迭代中访问p？我试过了，但是没有成功。我的尝试如下所示：
{{range .g}}
... // 打印与g相关的内容
.p
{{end}}
它会报错can't evaluate field p in type *G。
英文:
I have a controller passing two variables
func (a App) Page() revel.Result {
var g []*G
...
return c.Render(p, g)
}
in my .html I want to iterate over g. Is it possible to access p inside the iteration? I couldnt manage. My try looks like the following
{{range .g}}
... // print g related stuff
.p
{{end}}
and it throws can't evaluate field p in type *G.
答案1
得分: 1
Revel似乎使用Go的模板引擎，因此我猜你应该可以使用html/template允许的任何内容，比如变量。
{{$p := .p}}
{{range .g}}
... // 打印与g相关的内容
{{$p}}
{{end}}
更多信息请参阅文档：https://golang.org/pkg/text/template/#hdr-Variables
请注意，如果p不是映射中的键，而是结构体的字段，你可能无法访问它，因为它没有被导出。好的，我现在明白了，Revel似乎从传递给Render的参数的名称中推导出模板中的名称。
英文:
Revel seems to be using Go's template engine, therefore I guess you should be able to use whatever stuff's allowed with html/template like variables.
{{$p := .p}}
{{range .g}}
... // print g related stuff
{{$p}}
{{end}}
See documentation for more info https://golang.org/pkg/text/template/#hdr-Variables
<strike>Please note, if p is not a key in a map but a field of a struct, you won't be able to access it, i believe, since it is not exported.</strike> Ok I understand now, Revel seems to derive the names inside the template from the names of the arguments that were passed to Render.
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