Struct EntityColumn 

pub struct EntityColumn<E>
where
    E: Entity,
{ /* private fields */ }

Static column symbol generated for entities and consumed later by the query builder.

Implementations

impl<E> EntityColumn<E>

where E: Entity,

pub const fn new( rust_field: &'static str, column_name: &'static str, ) -> EntityColumn<E>

pub const fn rust_field(&self) -> &'static str

pub const fn column_name(&self) -> &'static str

pub fn entity_metadata(&self) -> &'static EntityMetadata

pub fn metadata(&self) -> &'static ColumnMetadata

Trait Implementations

impl<E> Clone for EntityColumn<E>

where E: Clone + Entity,

fn clone(&self) -> EntityColumn<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E> Debug for EntityColumn<E>

where E: Debug + Entity,

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

Formats the value using the given formatter.

impl<E: Entity> EntityColumnAliasExt<E> for EntityColumn<E>

fn aliased(self, alias: &'static str) -> AliasedEntityColumn<E>

impl<E: Entity> EntityColumnOrderExt<E> for EntityColumn<E>

fn asc(self) -> OrderBy

fn desc(self) -> OrderBy

impl<E: Entity> EntityColumnPredicateExt<E> for EntityColumn<E>

fn eq<V>(self, value: V) -> Predicate

where V: SqlTypeMapping,

fn ne<V>(self, value: V) -> Predicate

where V: SqlTypeMapping,

fn gt<V>(self, value: V) -> Predicate

where V: SqlTypeMapping,

fn gte<V>(self, value: V) -> Predicate

where V: SqlTypeMapping,

fn lt<V>(self, value: V) -> Predicate

where V: SqlTypeMapping,

fn lte<V>(self, value: V) -> Predicate

where V: SqlTypeMapping,

fn is_null(self) -> Predicate

fn is_not_null(self) -> Predicate

fn contains(self, value: impl Into<String>) -> Predicate

fn starts_with(self, value: impl Into<String>) -> Predicate

fn ends_with(self, value: impl Into<String>) -> Predicate

impl<E> From<EntityColumn<E>> for SelectProjection

where E: Entity,

fn from(value: EntityColumn<E>) -> SelectProjection

Converts to this type from the input type.

impl<E> GroupByExpressions for EntityColumn<E>

where E: Entity,

fn into_group_by_expressions(self) -> Vec<Expr>

impl<E> PartialEq for EntityColumn<E>

where E: PartialEq + Entity,

fn eq(&self, other: &EntityColumn<E>) -> 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<E> SelectProjections for EntityColumn<E>

where E: Entity,

fn into_select_projections(self) -> Vec<SelectProjection>

impl<E> Copy for EntityColumn<E>

where E: Copy + Entity,

impl<E> Eq for EntityColumn<E>

where E: Eq + Entity,

impl<E> StructuralPartialEq for EntityColumn<E>

where E: Entity,