askama
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djc
Could not find `askama_warp` in `{{root}}`
Hey @djc,
Thank you for this pretty good crate, unfortunaltely I tried it and I found a little problem, probably related to the recent migration/split of the derive crates.
[dependencies]
askama = { version = "0.10.1", features = ["with-warp"] }
error[E0433]: failed to resolve: could not find `askama_warp` in `{{root}}`
--> src/bin/serve.rs:36:10
|
36 | #[derive(Template)]
| ^^^^^^^^ could not find `askama_warp` in `{{root}}`
|
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
I found a way to solve this is issue by using both crates. And importing the askama_warp::Template trait reexport instead of the askama one.
[dependencies]
askama = "0.10.1"
askama_warp = "0.10.0"
I think this is intentional; when using an integration, you should just import everything directly from askama_warp. Let me know if you see any issues with that!
So, why the with-warp feature exist at all? I don't use it with the workaround I found.
Is the second solution I use the right way to use askama with warp?
The feature exists only so that askama_warp can depend directly on askama, which has to enable the feature inside askama_derive which writes out the warp specific generated code. The second solution seems right, except you shouldn't also be relying on askama directly IMO.
If I only have the askama_warp crate in the dependencies I got this error. This is one of the reason I find it a little bit confusing, the other reason is that in the book the with-warp feature on the askama is recomended.
error[E0433]: failed to resolve: could not find `askama` in `{{root}}`
--> src/bin/serve.rs:37:10
|
37 | #[derive(Template)]
| ^^^^^^^^ could not find `askama` in `{{root}}`
|
= note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
Hmm, the book is probably just out of date in this regard. Would you mind giving me the expanded code from your example code (by attaching print = "code" to the template() attribute, or just using cargo expand for it?
Here is the generated code.
impl ::askama::Template for IndexTemplate {
fn render_into(&self, writer: &mut ::std::fmt::Write) -> ::askama::Result<()> {
include_bytes !
("/Users/clementrenault/Documents/mega-mini-indexer/templates/index.html") ;
write!(
writer,
"<!DOCTYPE html>\n<html>\n<head>\n <meta charset=\"utf-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n <link rel=\"stylesheet\" href=\"/bulma.min.css\">\n <link rel=\"stylesheet\" href=\"/style.css\">\n <script type=\"text/javascript\" src=\"/jquery-3.4.1.min.js\"></script>\n <script type=\"text/javascript\" src=\"/papaparse.min.js\"></script>\n <script type=\"text/javascript\" src=\"/filesize.min.js\"></script>\n <title>{expr0} | The milli engine</title>\n</head>\n<body>\n\n <section class=\"hero is-light\">\n <div class=\"hero-body\">\n <div class=\"container\">\n <h1 class=\"title has-text-centered\">\n Welcome to milli\n </h1>\n <nav class=\"level\">\n <div class=\"level-item has-text-centered\">\n <div>\n <p class=\"heading\">Database Name</p>\n <p class=\"title\">{expr0}</p>\n </div>\n </div>\n <div class=\"level-item has-text-centered\">\n <div>\n <p class=\"heading\">Database Size</p>\n <p class=\"title\" id=\"db-size\">{expr1}</p>\n </div>\n </div>\n <div class=\"level-item has-text-centered\">\n <div>\n <p class=\"heading\">Number of Documents</p>\n <p class=\"title\" id=\"docs-count\">{expr2}</p>\n </div>\n </div>\n </nav>\n </div>\n </div>\n </section>\n\n <section class=\"hero container\">\n <div class=\"notification\" style=\"border-radius: 0 0 4px 4px;\">\n\n <nav class=\"level\">\n <!-- Left side -->\n <div class=\"level-left\">\n <div class=\"level-item\">\n <div class=\"field has-addons has-addons-right\">\n <input id=\"search\" class=\"input\" type=\"text\" autofocus placeholder=\"e.g. George Clooney\">\n </div>\n </div>\n <div class=\"level-item\"></div>\n </div>\n\n <!-- Right side -->\n <nav class=\"level-right\">\n <div class=\"level-item has-text-centered\">\n <div>\n <p class=\"heading\">Documents</p>\n <p id=\"count\" class=\"title\">0</p>\n </div>\n </div>\n <div class=\"level-item has-text-centered\">\n <div>\n <p class=\"heading\">Time Spent</p>\n <p id=\"time\" class=\"title\">0ms</p>\n </div>\n </div>\n </nav>\n </nav>\n\n </div>\n </section>\n\n <section>\n <ol id=\"results\" class=\"content\">\n <!-- documents matching requests -->\n </ol>\n </section>\n</body>\n\n<script type=\"text/javascript\" src=\"/script.js\"></script>\n\n</html>",
expr0 = &::askama::MarkupDisplay::new_unsafe(&self.db_name, ::askama::Html),
expr1 = &::askama::MarkupDisplay::new_unsafe(&self.db_size, ::askama::Html),
expr2 = &::askama::MarkupDisplay::new_unsafe(&self.docs_count, ::askama::Html),
)?;
Ok(())
}
fn extension(&self) -> Option<&'static str> {
Some("html")
}
fn size_hint(&self) -> usize {
2556
}
}
impl ::askama::SizedTemplate for IndexTemplate {
fn size_hint() -> usize {
2556
}
fn extension() -> Option<&'static str> {
Some("html")
}
}
impl ::std::fmt::Display for IndexTemplate {
fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
::askama::Template::render_into(self, f).map_err(|_| ::std::fmt::Error {})
}
}
impl ::askama_warp::warp::reply::Reply for IndexTemplate {
fn into_response(self) -> ::askama_warp::warp::reply::Response {
::askama_warp::reply(&self, "html")
}
}
Ah yeah, I think the additivity of feature flags makes it challenging to only have one import, unfortunately. So I think you should probably just keep the workaround as is.