Refactor PrimaryKeyTrait

sea-orm-macros/src/derives/primary_key.rs

@@ -47,16 +47,18 @@ pub fn expand_derive_primary_key(ident: Ident, data: Data) -> syn::Result<TokenS
 
         impl sea_orm::PrimaryKeyTrait for #ident {}
 
-        impl sea_orm::PrimaryKeyToColumn<Entity> for #ident {
-            fn into_column(self) -> <Entity as EntityTrait>::Column {
+        impl sea_orm::PrimaryKeyToColumn for #ident {
+            type Column = Column;
+
+            fn into_column(self) -> Self::Column {
                 match self {
-                    #(Self::#variant => Column::#variant,)*
+                    #(Self::#variant => Self::Column::#variant,)*
                 }
             }
 
-            fn from_column(col: <Entity as EntityTrait>::Column) -> Option<Self> {
+            fn from_column(col: Self::Column) -> Option<Self> {
                 match col {
-                    #(Column::#variant => Some(Self::#variant),)*
+                    #(Self::Column::#variant => Some(Self::#variant),)*
                     _ => None,
                 }
             }

src/entity/base.rs

@@ -20,7 +20,7 @@ pub trait EntityTrait: EntityName {
 
     type Relation: RelationTrait;
 
-    type PrimaryKey: PrimaryKeyTrait + PrimaryKeyToColumn<Self>;
+    type PrimaryKey: PrimaryKeyTrait + PrimaryKeyToColumn<Column = Self::Column>;
 
     fn has_one<R>(entity: R) -> RelationBuilder<Self, R>
     where
@@ -78,7 +78,6 @@ pub trait EntityTrait: EntityName {
     fn find_by<V>(values: V) -> Select<Self>
     where
         V: IntoValueTuple,
-        Self::PrimaryKey: PrimaryKeyToColumn<Self>,
     {
         let mut select = Self::find();
         let mut keys = Self::PrimaryKey::iter();

src/entity/primary_key.rs

@@ -1,12 +1,13 @@
-use super::{EntityTrait, IdenStatic, Iterable};
+use super::{ColumnTrait, IdenStatic, Iterable};
 
 pub trait PrimaryKeyTrait: IdenStatic + Iterable {}
 
-pub trait PrimaryKeyToColumn<E>
-where
-    E: EntityTrait,
-{
-    fn into_column(self) -> E::Column;
+pub trait PrimaryKeyToColumn {
+    type Column: ColumnTrait;
 
-    fn from_column(col: E::Column) -> Option<Self> where Self: std::marker::Sized;
+    fn into_column(self) -> Self::Column;
+
+    fn from_column(col: Self::Column) -> Option<Self>
+    where
+        Self: Sized;
 }

src/query/update.rs

@@ -86,7 +86,7 @@ where
 #[cfg(test)]
 mod tests {
     use crate::tests_cfg::{cake, fruit};
-    use crate::{Update, QueryTrait, Val};
+    use crate::{QueryTrait, Update, Val};
     use sea_query::PostgresQueryBuilder;
 
     #[test]