How to use for loop in jet template

[aiweisir]

How to use for loop in jet template?

[kataras]

jet/examples/todos/views/todos/index.jet

Lines 22 to 27 in 62edd43

	{{range id, value := .}}
	<li {{if value.Done}}style="color:red;text-decoration: line-through;"{{end}}>
	<a href="/todo?id={{ id }}">{{ value.Text }}</a>
	{{yield button(label="UP", href="/update/?id="+base64(id))}} - {{yield button(href="/delete/?id="+id, label="DL")}}
	</li>
	{{end}}

jet/examples/todos/main.go

Lines 54 to 65 in 62edd43

	// Range satisfies the jet.Ranger interface and only returns TODOs that are done,
	// even when the list contains TODOs that are not done.
	func (dt *doneTODOs) Range() (reflect.Value, reflect.Value, bool) {
	for dt.i < dt.len {
	key := dt.keys[dt.i]
	dt.i++
	if dt.list[key].Done {
	return reflect.ValueOf(key), reflect.ValueOf(dt.list[key]), false
	}
	}
	return reflect.Value{}, reflect.Value{}, true
	}

@wx85278161 ^

[kataras]

Although the example doesn't work as expected, try to pass it by value instead: func(dt doneTODOs) Range and it will work, the problem lives on its getRanger's caller eval.go#executeList.NodeRange.expression which makes the ptr as struct value which neither the #112 fixes it, instead it makes the pass by value not work too... something like getRanger(st.context) works for this usecase but probably will have some downsides as I dont know how the whole parser works, author @annismckenzie should take a look at my recommendations. I'll try to fix it by an external map to a ptr to a ptr on the Iris Jet view engine integration but needs a fix on this repository so all users will benefit from it.

[kataras]

The same problem is visible on the Renderer as well, take for example the todo's example func (t *tTODO) Render(r *view.JetRuntime) {. ^

[tooolbox]

@kataras I believe #126 should have fixed this, can you comment?