Struct QueryBuilder 

pub struct QueryBuilder<T>
where
    T: TableSchema,
{ /* private fields */ }

A builder for constructing database Queryes.

Implementations

impl<T> QueryBuilder<T>

where T: TableSchema,

pub fn build(self) -> Query<T>

Builds and returns a Query object based on the current state of the QueryBuilder.

pub fn field(self, field: &str) -> QueryBuilder<T>

Adds a field to select in the query.

pub fn fields<I>(self, fields: I) -> QueryBuilder<T>

where I: IntoIterator<Item = &'static str>,

Adds multiple fields to select in the query.

pub fn all(self) -> QueryBuilder<T>

Sets the query to select all fields.

pub fn with(self, table_relation: &str) -> QueryBuilder<T>

Adds a relation to eagerly load with the main records.

pub fn order_by_asc(self, field: &str) -> QueryBuilder<T>

Adds an ascending order by clause for the specified field.

pub fn order_by_desc(self, field: &str) -> QueryBuilder<T>

Adds a descending order by clause for the specified field.

pub fn limit(self, limit: usize) -> QueryBuilder<T>

Sets a limit on the number of records to return.

pub fn offset(self, offset: usize) -> QueryBuilder<T>

Sets an offset for pagination.

pub fn filter(self, filter: Option<Filter>) -> QueryBuilder<T>

Sets a filter for the query, replacing any existing filter.

pub fn and_where(self, filter: Filter) -> QueryBuilder<T>

Adds a filter to the query, combining with existing filters using AND.

pub fn or_where(self, filter: Filter) -> QueryBuilder<T>

Adds a filter to the query, combining with existing filters using OR.

Trait Implementations

impl<T> Clone for QueryBuilder<T>

where T: Clone + TableSchema,

fn clone(&self) -> QueryBuilder<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for QueryBuilder<T>

where T: Debug + TableSchema,

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

Formats the value using the given formatter.

impl<T> Default for QueryBuilder<T>

where T: TableSchema,

fn default() -> QueryBuilder<T>

Returns the “default value” for a type.