Non-static link

src/entity/model.rs

@@ -17,11 +17,11 @@ pub trait ModelTrait: Clone + Debug {
         <Self::Entity as Related<R>>::find_related().belongs_to(self)
     }
 
-    fn find_linked<L>(&self, _: L) -> Select<L::ToEntity>
+    fn find_linked<L>(&self, l: L) -> Select<L::ToEntity>
     where
         L: Linked<FromEntity = Self::Entity>,
     {
-        L::find_linked()
+        l.find_linked()
     }
 }
 

src/entity/relation.rs

@@ -33,11 +33,11 @@ pub trait Linked {
 
     type ToEntity: EntityTrait;
 
-    fn link() -> Vec<RelationDef>;
+    fn link(&self) -> Vec<RelationDef>;
 
-    fn find_linked() -> Select<Self::ToEntity> {
+    fn find_linked(&self) -> Select<Self::ToEntity> {
         let mut select = Select::new();
-        for rel in Self::link().into_iter().rev() {
+        for rel in self.link().into_iter().rev() {
             select = select.join_rev(JoinType::InnerJoin, rel);
         }
         select

src/query/join.rs

@@ -59,13 +59,13 @@ where
     }
 
     /// Left Join with a Linked Entity and select both Entity.
-    pub fn find_also_linked<L, T>(self, _: L) -> SelectTwo<E, T>
+    pub fn find_also_linked<L, T>(self, l: L) -> SelectTwo<E, T>
     where
         L: Linked<FromEntity = E, ToEntity = T>,
         T: EntityTrait,
     {
         let mut slf = self;
-        for rel in L::link() {
+        for rel in l.link() {
             slf = slf.join(JoinType::LeftJoin, rel);
         }
         slf.select_also(T::default())

src/tests_cfg/cake.rs

@@ -80,7 +80,7 @@ impl Linked for CakeToFilling {
 
     type ToEntity = super::filling::Entity;
 
-    fn link() -> Vec<RelationDef> {
+    fn link(&self) -> Vec<RelationDef> {
         vec![
             super::cake_filling::Relation::Cake.def().rev(),
             super::cake_filling::Relation::Filling.def(),

tests/common/bakery_chain/baker.rs

@@ -88,7 +88,7 @@ impl Linked for BakedForCustomer {
 
     type ToEntity = super::customer::Entity;
 
-    fn link() -> Vec<RelationDef> {
+    fn link(&self) -> Vec<RelationDef> {
         vec![
             super::cakes_bakers::Relation::Baker.def().rev(),
             super::cakes_bakers::Relation::Cake.def(),