Struct Query 

pub struct Query<T>
where
    T: TableSchema,
{
    pub eager_relations: Vec<String>,
    pub filter: Option<Filter>,
    pub order_by: Vec<(String, OrderDirection)>,
    pub limit: Option<usize>,
    pub offset: Option<usize>,
    /* private fields */
}

A struct representing a query in the DBMS.

Fields

eager_relations: Vec<String>

Relations to eagerly load with the main records.

filter: Option<Filter>

Filter to apply to the query.

order_by: Vec<(String, OrderDirection)>

Order by clauses for sorting the results.

limit: Option<usize>

Limit on the number of records to return.

offset: Option<usize>

Offset for pagination.

Implementations

impl<T> Query<T>

where T: TableSchema,

pub fn builder() -> QueryBuilder<T>

Creates a new QueryBuilder for building a query.

pub fn all_selected(&self) -> bool

Returns whether all columns are selected in the query.

pub fn columns(&self) -> Vec<String>

Returns the list of columns to be selected in the query.

Trait Implementations

impl<T: TableSchema> CandidType for Query<T>

fn _ty() -> Type

fn idl_serialize<S>(&self, serializer: S) -> Result<(), S::Error>

where S: Serializer,

fn ty() -> Type

fn id() -> TypeId

impl<T> Clone for Query<T>

where T: TableSchema + Clone,

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Query<T>

where T: TableSchema + Debug,

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

Formats the value using the given formatter.

impl<T> Default for Query<T>

where T: TableSchema,

fn default() -> Self

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for Query<T>

where T: TableSchema,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> PartialEq for Query<T>

where T: TableSchema + PartialEq,

fn eq(&self, other: &Query<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<T> Serialize for Query<T>

where T: TableSchema,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> Eq for Query<T>

where T: TableSchema + Eq,

impl<T> StructuralPartialEq for Query<T>

where T: TableSchema,