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Keats
missing details when render failed
Hi there, ahh, I've got an error, and I'm trying print it, but it didn't print the details.
main.rs
use std::{collections::HashMap, error::Error};
use tera::{Context, Tera};
fn main() {
let t = Tera::new("tpls/**").unwrap();
let mut context = Context::new();
let mut map = HashMap::new();
map.insert("one", "key one");
map.insert("two", "key two");
context.insert("map", &map);
match t.render("index.tpl", &context) {
Ok(v) => println!("{}", v),
Err(e) => eprintln!("{}, {}", e, e.source().unwrap()),
};
}
tpls/index.tpl
{%- for k,v in map %}
{{ k }}: {{ v.name }}
{%- endfor -%}
Output is Failed to render 'index.tpl', Variable `v.name` not found in context while rendering 'index.tpl'
You can see that, eprintln!("{}, {}", e, e.source().unwrap()), I found this way can print the details.
If just eprintln!("{}", e) then the output is just Failed to render 'index.tpl'.
At first, I use unwrap(), it will print all messages, then I finished these feature, I change it to match, and then
I was confused cause this.
"Oh, this is awkward (x".
That's due to the way the errors are done in Tera, changing that would be a breaking change but it should be improved for the next major version.
Can use {:#} for now.
use anyhow::anyhow;
fn main() {
let e = anyhow!("some errors").context("read failed");
println!("{}", e);
println!("{:#}", e);
println!("{:#?}", e);
}
read failed
read failed: some errors
Error {
context: "read failed",
source: "some errors",
}
That's due to the way the errors are done in Tera, changing that would be a breaking change but it should be improved for the next major version.
@Keats can't we just change this line to also print the source?
@Keats my bad, here we go again:
https://github.com/Keats/tera/blob/4f6b354185e1f041aef5a4a6e42451d5cc348668/src/errors.rs#L69
