Add ActiveModel insert & update

Cargo.toml

@@ -23,6 +23,7 @@ path = "src/lib.rs"
 
 [dependencies]
 async-stream = { version = "^0.3" }
+async-trait = { version = "^0.1" }
 chrono = { version = "^0", optional = true }
 futures = { version = "^0.3" }
 futures-util = { version = "^0.3" }

README.md

@@ -98,7 +98,7 @@ let mut pear: fruit::ActiveModel = pear.unwrap().into();
 pear.name = Set("Sweet pear".to_owned());
 
 // update one
-let pear: fruit::ActiveModel = Fruit::update(pear).exec(db).await?;
+let pear: fruit::ActiveModel = pear.update(db).await?;
 
 // update many: UPDATE "fruit" SET "cake_id" = NULL WHERE "fruit"."name" LIKE '%Apple%'
 Fruit::update_many()

examples/async-std/src/operation.rs

@@ -33,7 +33,7 @@ pub async fn insert_and_update(db: &DbConn) -> Result<(), DbErr> {
     let mut pear: fruit::ActiveModel = pear.unwrap().into();
     pear.name = Set("Sweet pear".to_owned());
 
-    let pear: fruit::ActiveModel = Fruit::update(pear).exec(db).await?;
+    let pear: fruit::ActiveModel = pear.update(db).await?;
 
     println!();
     println!("Updated: {:?}\n", pear);

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

@@ -36,16 +36,6 @@ pub fn expand_derive_active_model(ident: Ident, data: Data) -> syn::Result<Token
             #(pub #field: sea_orm::ActiveValue<#ty>),*
         }
 
-        impl ActiveModel {
-            pub async fn save(self, db: &sea_orm::DatabaseConnection) -> Result<Self, sea_orm::DbErr> {
-                sea_orm::save_active_model::<Self, Entity>(self, db).await
-            }
-
-            pub async fn delete(self, db: &sea_orm::DatabaseConnection) -> Result<sea_orm::DeleteResult, sea_orm::DbErr> {
-                sea_orm::delete_active_model::<Self, Entity>(self, db).await
-            }
-        }
-
         impl std::default::Default for ActiveModel {
             fn default() -> Self {
                 <Self as sea_orm::ActiveModelBehavior>::new()

src/entity/active_model.rs

@@ -2,6 +2,7 @@ use crate::{
     error::*, DatabaseConnection, DeleteResult, EntityTrait, Iterable, PrimaryKeyToColumn,
     PrimaryKeyTrait, Value,
 };
+use async_trait::async_trait;
 use std::fmt::Debug;
 
 #[derive(Clone, Debug, Default)]
@@ -50,6 +51,7 @@ where
     ActiveValue::unchanged(value)
 }
 
+#[async_trait]
 pub trait ActiveModelTrait: Clone + Debug {
     type Entity: EntityTrait;
 
@@ -65,9 +67,71 @@ pub trait ActiveModelTrait: Clone + Debug {
 
     fn default() -> Self;
 
-    // below is not yet possible. right now we define these methods in DeriveActiveModel
-    // fn save(self, db: &DatabaseConnection) -> impl Future<Output = Result<Self, DbErr>>;
-    // fn delete(self, db: &DatabaseConnection) -> impl Future<Output = Result<DeleteResult, DbErr>>;
+    async fn insert(self, db: &DatabaseConnection) -> Result<Self, DbErr>
+    where
+        <Self::Entity as EntityTrait>::Model: IntoActiveModel<Self>,
+    {
+        let am = self;
+        let exec = <Self::Entity as EntityTrait>::insert(am).exec(db);
+        let res = exec.await?;
+        // TODO: if the entity does not have auto increment primary key, then last_insert_id is a wrong value
+        // FIXME: Assumed valid last_insert_id is not equals to Default::default()
+        if <<Self::Entity as EntityTrait>::PrimaryKey as PrimaryKeyTrait>::auto_increment()
+            && res.last_insert_id != <<Self::Entity as EntityTrait>::PrimaryKey as PrimaryKeyTrait>::ValueType::default()
+        {
+            let find = <Self::Entity as EntityTrait>::find_by_id(res.last_insert_id).one(db);
+            let found = find.await;
+            let model: Option<<Self::Entity as EntityTrait>::Model> = found?;
+            match model {
+                Some(model) => Ok(model.into_active_model()),
+                None => Err(DbErr::Exec("Failed to find inserted item".to_owned())),
+            }
+        } else {
+            Ok(Self::default())
+        }
+    }
+
+    async fn update(self, db: &DatabaseConnection) -> Result<Self, DbErr> {
+        let exec = Self::Entity::update(self).exec(db);
+        exec.await
+    }
+
+    /// Insert the model if primary key is unset, update otherwise.
+    /// Only works if the entity has auto increment primary key.
+    async fn save(self, db: &DatabaseConnection) -> Result<Self, DbErr>
+    where
+        Self: ActiveModelBehavior,
+        <Self::Entity as EntityTrait>::Model: IntoActiveModel<Self>,
+    {
+        let mut am = self;
+        am = ActiveModelBehavior::before_save(am);
+        let mut is_update = true;
+        for key in <Self::Entity as EntityTrait>::PrimaryKey::iter() {
+            let col = key.into_column();
+            if am.is_unset(col) {
+                is_update = false;
+                break;
+            }
+        }
+        if !is_update {
+            am = am.insert(db).await?;
+        } else {
+            am = am.update(db).await?;
+        }
+        am = ActiveModelBehavior::after_save(am);
+        Ok(am)
+    }
+
+    /// Delete an active model by its primary key
+    async fn delete(self, db: &DatabaseConnection) -> Result<DeleteResult, DbErr>
+    where
+        Self: ActiveModelBehavior,
+    {
+        let mut am = self;
+        am = ActiveModelBehavior::before_delete(am);
+        let exec = Self::Entity::delete(am).exec(db);
+        exec.await
+    }
 }
 
 /// Behaviors for users to override
@@ -185,80 +249,3 @@ where
         self.value.as_ref() == other.value.as_ref()
     }
 }
-
-/// Insert the model if primary key is unset, update otherwise.
-/// Only works if the entity has auto increment primary key.
-pub async fn save_active_model<A, E>(mut am: A, db: &DatabaseConnection) -> Result<A, DbErr>
-where
-    A: ActiveModelBehavior + ActiveModelTrait<Entity = E>,
-    E::Model: IntoActiveModel<A>,
-    E: EntityTrait,
-{
-    am = ActiveModelBehavior::before_save(am);
-    let mut is_update = true;
-    for key in E::PrimaryKey::iter() {
-        let col = key.into_column();
-        if am.is_unset(col) {
-            is_update = false;
-            break;
-        }
-    }
-    if !is_update {
-        am = insert_and_select_active_model::<A, E>(am, db).await?;
-    } else {
-        am = update_active_model::<A, E>(am, db).await?;
-    }
-    am = ActiveModelBehavior::after_save(am);
-    Ok(am)
-}
-
-async fn insert_and_select_active_model<A, E>(am: A, db: &DatabaseConnection) -> Result<A, DbErr>
-where
-    A: ActiveModelTrait<Entity = E>,
-    E::Model: IntoActiveModel<A>,
-    E: EntityTrait,
-{
-    let exec = E::insert(am).exec(db);
-    let res = exec.await?;
-    // TODO: if the entity does not have auto increment primary key, then last_insert_id is a wrong value
-    // FIXME: Assumed valid last_insert_id is not equals to Default::default()
-    if <E::PrimaryKey as PrimaryKeyTrait>::auto_increment()
-        && res.last_insert_id != <E::PrimaryKey as PrimaryKeyTrait>::ValueType::default()
-    {
-        let find = E::find_by_id(res.last_insert_id).one(db);
-        let found = find.await;
-        let model: Option<E::Model> = found?;
-        match model {
-            Some(model) => Ok(model.into_active_model()),
-            None => Err(DbErr::Exec(format!(
-                "Failed to find inserted item: {}",
-                E::default().to_string(),
-            ))),
-        }
-    } else {
-        Ok(A::default())
-    }
-}
-
-async fn update_active_model<A, E>(am: A, db: &DatabaseConnection) -> Result<A, DbErr>
-where
-    A: ActiveModelTrait<Entity = E>,
-    E: EntityTrait,
-{
-    let exec = E::update(am).exec(db);
-    exec.await
-}
-
-/// Delete an active model by its primary key
-pub async fn delete_active_model<A, E>(
-    mut am: A,
-    db: &DatabaseConnection,
-) -> Result<DeleteResult, DbErr>
-where
-    A: ActiveModelBehavior + ActiveModelTrait<Entity = E>,
-    E: EntityTrait,
-{
-    am = ActiveModelBehavior::before_delete(am);
-    let exec = E::delete(am).exec(db);
-    exec.await
-}

src/entity/base_entity.rs

@@ -386,7 +386,7 @@ pub trait EntityTrait: EntityName {
     /// # let _: Result<(), DbErr> = smol::block_on(async {
     /// #
     /// assert_eq!(
-    ///     fruit::Entity::update(orange.clone()).exec(&db).await?, // Clone here because we need to assert_eq
+    ///     orange.clone().update(&db).await?, // Clone here because we need to assert_eq
     ///     orange
     /// );
     /// #

src/entity/model.rs

@@ -2,7 +2,7 @@ use crate::{DbErr, EntityTrait, Linked, QueryFilter, QueryResult, Related, Selec
 pub use sea_query::Value;
 use std::fmt::Debug;
 
-pub trait ModelTrait: Clone + Debug {
+pub trait ModelTrait: Clone + Send + Debug {
     type Entity: EntityTrait;
 
     fn get(&self, c: <Self::Entity as EntityTrait>::Column) -> Value;

src/entity/primary_key.rs

@@ -6,6 +6,7 @@ use std::fmt::Debug;
 //LINT: composite primary key cannot auto increment
 pub trait PrimaryKeyTrait: IdenStatic + Iterable {
     type ValueType: Sized
+        + Send
         + Default
         + Debug
         + PartialEq

src/lib.rs

@@ -126,7 +126,7 @@
 //! pear.name = Set("Sweet pear".to_owned());
 //!
 //! // update one
-//! let pear: fruit::ActiveModel = Fruit::update(pear).exec(db).await?;
+//! let pear: fruit::ActiveModel = pear.update(db).await?;
 //!
 //! // update many: UPDATE "fruit" SET "cake_id" = NULL WHERE "fruit"."name" LIKE '%Apple%'
 //! Fruit::update_many()

src/query/update.rs

@@ -47,13 +47,14 @@ impl Update {
         E: EntityTrait,
         A: ActiveModelTrait<Entity = E>,
     {
-        let myself = UpdateOne {
+        UpdateOne {
             query: UpdateStatement::new()
                 .table(A::Entity::default().table_ref())
                 .to_owned(),
             model,
-        };
-        myself.prepare()
+        }
+        .prepare_filters()
+        .prepare_values()
     }
 
     /// Update many ActiveModel
@@ -85,7 +86,7 @@ impl<A> UpdateOne<A>
 where
     A: ActiveModelTrait,
 {
-    pub(crate) fn prepare(mut self) -> Self {
+    pub(crate) fn prepare_filters(mut self) -> Self {
         for key in <A::Entity as EntityTrait>::PrimaryKey::iter() {
             let col = key.into_column();
             let av = self.model.get(col);
@@ -95,6 +96,10 @@ where
                 panic!("PrimaryKey is not set");
             }
         }
+        self
+    }
+
+    pub(crate) fn prepare_values(mut self) -> Self {
         for col in <A::Entity as EntityTrait>::Column::iter() {
             if <A::Entity as EntityTrait>::PrimaryKey::from_column(col).is_some() {
                 continue;

tests/crud/updates.rs

@@ -42,10 +42,8 @@ pub async fn test_update_cake(db: &DbConn) {
     cake_am.name = Set("Extra chocolate mud cake".to_owned());
     cake_am.price = Set(dec!(20.00));
 
-    let _cake_update_res: cake::ActiveModel = Cake::update(cake_am)
-        .exec(db)
-        .await
-        .expect("could not update cake");
+    let _cake_update_res: cake::ActiveModel =
+        cake_am.update(db).await.expect("could not update cake");
 
     let cake: Option<cake::Model> = Cake::find_by_id(cake_insert_res.last_insert_id)
         .one(db)
@@ -81,10 +79,8 @@ pub async fn test_update_bakery(db: &DbConn) {
     bakery_am.name = Set("SeaBreeze Bakery".to_owned());
     bakery_am.profit_margin = Set(12.00);
 
-    let _bakery_update_res: bakery::ActiveModel = Bakery::update(bakery_am)
-        .exec(db)
-        .await
-        .expect("could not update bakery");
+    let _bakery_update_res: bakery::ActiveModel =
+        bakery_am.update(db).await.expect("could not update bakery");
 
     let bakery: Option<bakery::Model> = Bakery::find_by_id(bakery_insert_res.last_insert_id)
         .one(db)
@@ -123,8 +119,8 @@ pub async fn test_update_deleted_customer(db: &DbConn) {
         ..Default::default()
     };
 
-    let _customer_update_res: customer::ActiveModel = Customer::update(customer)
-        .exec(db)
+    let _customer_update_res: customer::ActiveModel = customer
+        .update(db)
         .await
         .expect("could not update customer");