Struct QueryLimits 

pub struct QueryLimits {
    pub limit: Option<usize>,
    pub offset: usize,
}

Query limits (LIMIT and OFFSET)

Fields

limit: Option<usize>

Maximum number of rows to return

offset: usize

Number of rows to skip

Implementations

impl QueryLimits

pub fn none() -> QueryLimits

Create with no limits

pub fn limit(self, n: usize) -> QueryLimits

Set limit

pub fn offset(self, n: usize) -> QueryLimits

Set offset

pub fn apply<T>(&self, items: Vec<T>) -> Vec<T>

Apply limits to a vector of results

pub fn apply_iter<T, I>(&self, iter: I) -> Box<dyn Iterator<Item = T>>

where T: 'static, I: Iterator<Item = T> + 'static,

Apply limits to an iterator

pub fn range(&self, total: usize) -> Range<usize>

Calculate the effective range for pagination

Trait Implementations

impl Clone for QueryLimits

fn clone(&self) -> QueryLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryLimits

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

Formats the value using the given formatter.

impl Default for QueryLimits

fn default() -> QueryLimits

Returns the “default value” for a type.