pub struct Relation {
pub from: Option<Meta<TableName>>,
pub where_clause: Option<Where>,
pub order_by: Option<OrderBy>,
pub first: Option<Meta<bool>>,
pub fields: Option<SelectFields>,
}Expand description
A relation definition (nested query on related table).
Fields§
§from: Option<Meta<TableName>>Optional explicit table name.
where_clause: Option<Where>Filter conditions.
order_by: Option<OrderBy>Order by clause.
first: Option<Meta<bool>>Return only the first result.
fields: Option<SelectFields>Fields to select from the relation.
Implementations§
Source§impl Relation
impl Relation
Sourcepub fn table_name(&self) -> Option<&str>
pub fn table_name(&self) -> Option<&str>
Get the table name for this relation.
Returns the explicit from table if set, otherwise returns None
(caller should use the relation field name as fallback).
Sourcepub fn has_relations(&self) -> bool
pub fn has_relations(&self) -> bool
Check if this relation has any nested relations.
Sourcepub fn has_vec_relations(&self) -> bool
pub fn has_vec_relations(&self) -> bool
Check if this relation has any Vec (has-many) nested relations.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Relation
impl RefUnwindSafe for Relation
impl Send for Relation
impl Sync for Relation
impl Unpin for Relation
impl UnsafeUnpin for Relation
impl UnwindSafe for Relation
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