elif_orm::query::with

Trait QueryBuilderWithMethods

Source 
pub trait QueryBuilderWithMethods<M> {
    // Required methods
    fn with(self, relation: &str) -> QueryBuilderWithEagerLoading<M>;
    fn with_where<F>(
        self,
        relation: &str,
        constraint: F,
    ) -> QueryBuilderWithEagerLoading<M>
       where F: FnOnce(RelationshipConstraintBuilder) -> RelationshipConstraintBuilder + 'static;
    fn with_when(
        self,
        condition: bool,
        relation: &str,
    ) -> QueryBuilderWithEagerLoading<M>;
    fn with_count(self, relation: &str) -> QueryBuilderWithEagerLoading<M>;
    fn with_count_where<F>(
        self,
        alias: &str,
        relation: &str,
        constraint: F,
    ) -> QueryBuilderWithEagerLoading<M>
       where F: FnOnce(RelationshipConstraintBuilder) -> RelationshipConstraintBuilder + 'static;
}
Expand description

Extension trait for QueryBuilder to add eager loading support

Required Methods§

Source

fn with(self, relation: &str) -> QueryBuilderWithEagerLoading<M>

Add a relationship to eagerly load

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fn with_where<F>( self, relation: &str, constraint: F, ) -> QueryBuilderWithEagerLoading<M>
where F: FnOnce(RelationshipConstraintBuilder) -> RelationshipConstraintBuilder + 'static,

Add a relationship with constraints

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fn with_when( self, condition: bool, relation: &str, ) -> QueryBuilderWithEagerLoading<M>

Add conditional eager loading

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fn with_count(self, relation: &str) -> QueryBuilderWithEagerLoading<M>

Load relationship counts without loading the relationships

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fn with_count_where<F>( self, alias: &str, relation: &str, constraint: F, ) -> QueryBuilderWithEagerLoading<M>
where F: FnOnce(RelationshipConstraintBuilder) -> RelationshipConstraintBuilder + 'static,

Load relationship counts with constraints

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§

Source§

impl<M> QueryBuilderWithMethods<M> for QueryBuilder<M>
where M: Model + Send + Sync,

Implementation for base QueryBuilder to support eager loading