Struct GetHelper

pub struct GetHelper { /* private fields */ }

Gets a value from the key/value store

assert_eq!(
  exec_template(json!({}), r#"{{set "k" "v"}}{{get "k"}}"#),
  "v"
);
assert_eq!(
  exec_template(json!({}), r#"{{set "" "v"}}{{get ""}}"#),
  "v"
);
assert_eq!(
  exec_template(json!({}), r#"{{set "k" 42}}{{get "k"}}"#),
  "42"
);

An error will be raise if a non existing key is asked

exec_template(json!({}), r#"{{get "plop"}}"#);

Implementations

impl GetHelper

pub fn new(values: &Arc<RwLock<HashMap<String, Value>>>) -> Self

Trait Implementations

impl HelperDef for GetHelper

fn call_inner<'reg: 'rc, 'rc>( &self, h: &Helper<'reg, 'rc>, _: &'reg Handlebars<'reg>, _: &'rc Context, _: &mut RenderContext<'reg, 'rc>, ) -> Result<ScopedJson<'reg, 'rc>, RenderError>

A simplified api to define helper

fn call<'reg, 'rc>( &self, h: &Helper<'reg, 'rc>, r: &'reg Registry<'reg>, ctx: &'rc Context, rc: &mut RenderContext<'reg, 'rc>, out: &mut dyn Output, ) -> Result<(), RenderError>

where 'reg: 'rc,

A complex version of helper interface.