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use askama::Template;
struct Post {
id: u32,
}
struct Client<'a> {
can_post_ids: &'a [u32],
can_update_ids: &'a [u32],
}
impl Client<'_> {
fn can_post(&self, post: &Post) -> bool {
self.can_post_ids.contains(&post.id)
}
fn can_update(&self, post: &Post) -> bool {
self.can_update_ids.contains(&post.id)
}
}
#[derive(Template)]
#[template(
source = r#"
{%- match (client.can_post(post), client.can_update(post)) -%}
{%- when (false, false) -%}
No!
{%- when (can_post, can_update) -%}
<ul>
{%- if can_post -%}<li>post</li>{%- endif -%}
{%- if can_update -%}<li>update</li>{%- endif -%}
</ul>
{%- endmatch -%}
"#,
ext = "txt"
)]
struct TupleTemplate<'a> {
client: &'a Client<'a>,
post: &'a Post,
}
#[test]
fn test_tuple() {
let template = TupleTemplate {
client: &Client {
can_post_ids: &[1, 2],
can_update_ids: &[2, 3],
},
post: &Post { id: 1 },
};
assert_eq!(template.render().unwrap(), "<ul><li>post</li></ul>");
let template = TupleTemplate {
client: &Client {
can_post_ids: &[1, 2],
can_update_ids: &[2, 3],
},
post: &Post { id: 2 },
};
assert_eq!(
template.render().unwrap(),
"<ul><li>post</li><li>update</li></ul>"
);
let template = TupleTemplate {
client: &Client {
can_post_ids: &[1, 2],
can_update_ids: &[2, 3],
},
post: &Post { id: 3 },
};
assert_eq!(template.render().unwrap(), "<ul><li>update</li></ul>");
let template = TupleTemplate {
client: &Client {
can_post_ids: &[1, 2],
can_update_ids: &[2, 3],
},
post: &Post { id: 4 },
};
assert_eq!(template.render().unwrap(), "No!");
}
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