Struct query_map::QueryMap

pub struct QueryMap(_);

A read-only view into a map of data which may contain multiple values

Internally data is always represented as many values

Implementations

impl QueryMap

pub fn first(&self, key: &str) -> Option<&str>

Return the first elelemnt associated with a key

pub fn all(&self, key: &str) -> Option<Vec<&str>>

Return all elements associated with a key

pub fn is_empty(&self) -> bool

Return true if there are no elements in the map

pub fn iter(&self) -> QueryMapIter<'_>

Return an iterator for this map

Trait Implementations

impl Clone for QueryMap

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QueryMap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for QueryMap

fn default() -> QueryMap

Returns the “default value” for a type.

impl From<HashMap<String, String, RandomState>> for QueryMap

fn from(inner: HashMap<String, String>) -> Self

Converts to this type from the input type.

impl From<HashMap<String, Vec<String, Global>, RandomState>> for QueryMap

fn from(inner: HashMap<String, Vec<String>>) -> Self

Converts to this type from the input type.

impl PartialEq<QueryMap> for QueryMap

fn eq(&self, other: &QueryMap) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for QueryMap