Enum query_structure::filter::RelationCondition

pub enum RelationCondition {
    EveryRelatedRecord,
    AtLeastOneRelatedRecord,
    NoRelatedRecord,
    ToOneRelatedRecord,
}

Variants

EveryRelatedRecord

Every single related record needs to fulfill a condition. every query condition.

AtLeastOneRelatedRecord

At least one related record needs to fulfill a condition. some query condition.

NoRelatedRecord

No related record must to fulfill a condition. none query condition.

ToOneRelatedRecord

To-one relation only - the related record must fulfill a condition.

Implementations

impl RelationCondition

pub fn invert_of_subselect(self) -> bool

pub fn invert(self, invert: bool, to_one: bool) -> Self

Trait Implementations

impl Clone for RelationCondition

fn clone(&self) -> RelationCondition

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RelationCondition

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

Formats the value using the given formatter.

impl Hash for RelationCondition

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for RelationCondition

fn cmp(&self, other: &RelationCondition) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for RelationCondition

fn eq(&self, other: &RelationCondition) -> 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 PartialOrd for RelationCondition

fn partial_cmp(&self, other: &RelationCondition) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for RelationCondition

impl Eq for RelationCondition

impl StructuralEq for RelationCondition

impl StructuralPartialEq for RelationCondition