Trait RullstCollection 

pub trait RullstCollection<T> {
    // Required methods
    fn key_by<K, F>(self, f: F) -> HashMap<K, T>
       where F: Fn(&T) -> K,
             K: Hash + Eq;
    fn chunk(self, size: usize) -> Vec<Vec<T>>;
    fn implode<F>(&self, separator: &str, f: F) -> String
       where F: Fn(&T) -> String;
    fn sum_by<N, F>(&self, f: F) -> N
       where F: Fn(&T) -> N,
             N: Sum;
    fn max_by_key<K, F>(&self, f: F) -> Option<&T>
       where F: Fn(&T) -> K,
             K: Ord;
    fn min_by_key<K, F>(&self, f: F) -> Option<&T>
       where F: Fn(&T) -> K,
             K: Ord;
    fn collection_resource(&self) -> Value
       where T: ApiResource;
}

An extension trait that brings Laravel-style Collection methods natively to Rust’s Vec.

Required Methods

fn key_by<K, F>(self, f: F) -> HashMap<K, T>

where F: Fn(&T) -> K, K: Hash + Eq,

Keys the collection by the given closure’s return value

fn chunk(self, size: usize) -> Vec<Vec<T>>

Splits the collection into chunks of the given size

fn implode<F>(&self, separator: &str, f: F) -> String

where F: Fn(&T) -> String,

Joins the items into a single string using the given separator and closure

fn sum_by<N, F>(&self, f: F) -> N

where F: Fn(&T) -> N, N: Sum,

Sums up the values returned by the closure

fn max_by_key<K, F>(&self, f: F) -> Option<&T>

where F: Fn(&T) -> K, K: Ord,

Finds the maximum value returned by the closure

fn min_by_key<K, F>(&self, f: F) -> Option<&T>

where F: Fn(&T) -> K, K: Ord,

Finds the minimum value returned by the closure

fn collection_resource(&self) -> Value

where T: ApiResource,

Serializes the entire collection using an ApiResource transformer

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T> RullstCollection<T> for Vec<T>

fn key_by<K, F>(self, f: F) -> HashMap<K, T>

where F: Fn(&T) -> K, K: Hash + Eq,

fn chunk(self, size: usize) -> Vec<Vec<T>>

fn implode<F>(&self, separator: &str, f: F) -> String

where F: Fn(&T) -> String,

fn sum_by<N, F>(&self, f: F) -> N

where F: Fn(&T) -> N, N: Sum,

fn max_by_key<K, F>(&self, f: F) -> Option<&T>

where F: Fn(&T) -> K, K: Ord,

fn min_by_key<K, F>(&self, f: F) -> Option<&T>

where F: Fn(&T) -> K, K: Ord,

fn collection_resource(&self) -> Value

where T: ApiResource,

Implementors