Add user follow relation

migration/src/lib.rs

@@ -3,6 +3,7 @@ pub use sea_orm_migration::prelude::*;
 mod m20220101_000001_post_table;
 mod m20240417_230111_user_table;
 mod m20240417_233430_post_user_keys;
+mod m20240505_002524_user_follow_relation;
 
 pub struct Migrator;
 
@@ -13,6 +14,7 @@ impl MigratorTrait for Migrator {
             Box::new(m20220101_000001_post_table::Migration),
             Box::new(m20240417_230111_user_table::Migration),
             Box::new(m20240417_233430_post_user_keys::Migration),
+            Box::new(m20240505_002524_user_follow_relation::Migration),
         ]
     }
 }

migration/src/m20240505_002524_user_follow_relation.rs

@@ -0,0 +1,66 @@
+use sea_orm_migration::prelude::*;
+
+use crate::m20240417_230111_user_table::User;
+
+#[derive(DeriveMigrationName)]
+pub struct Migration;
+
+#[async_trait::async_trait]
+impl MigrationTrait for Migration {
+    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+
+        manager
+            .create_table(
+                Table::create()
+                    .table(FollowRelation::Table)
+                    .if_not_exists()
+                    .col(
+                        ColumnDef::new(FollowRelation::Id)
+                            .integer()
+                            .not_null()
+                            .auto_increment()
+                            .primary_key(),
+                    )
+                    .col(ColumnDef::new(FollowRelation::FolloweeId).string().not_null())
+                    .col(ColumnDef::new(FollowRelation::FollowerId).string().not_null())
+                    .col(ColumnDef::new(FollowRelation::FolloweeHost).string())
+                    .col(ColumnDef::new(FollowRelation::FollowerHost).string())
+                    .col(ColumnDef::new(FollowRelation::FolloweeInbox).string())
+                    .col(ColumnDef::new(FollowRelation::FollowerInbox).string())
+                    .foreign_key(
+                        ForeignKey::create()
+                            .name("fk_follow_relation_followee_id")
+                            .from(FollowRelation::Table, FollowRelation::FolloweeId)
+                            .to(User::Table, User::Id)
+                            .on_delete(ForeignKeyAction::Cascade),
+                    )
+                    .foreign_key(
+                        ForeignKey::create()
+                            .name("fk_follow_relation_follower_id")
+                            .from(FollowRelation::Table, FollowRelation::FollowerId)
+                            .to(User::Table, User::Id)
+                            .on_delete(ForeignKeyAction::Cascade),
+                    )
+                    .to_owned(),
+            )
+            .await
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .drop_table(Table::drop().table(FollowRelation::Table).to_owned())
+            .await
+    }
+}
+
+#[derive(DeriveIden)]
+enum FollowRelation {
+    Table,
+    Id,
+    FolloweeId,
+    FollowerId,
+    FolloweeHost,
+    FollowerHost,
+    FolloweeInbox,
+    FollowerInbox
+}

src/entities/follow_relation.rs

@@ -0,0 +1,38 @@
+//! `SeaORM` Entity. Generated by sea-orm-codegen 0.12.10
+
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
+#[sea_orm(table_name = "follow_relation")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i32,
+    pub followee_id: String,
+    pub follower_id: String,
+    pub followee_host: Option<String>,
+    pub follower_host: Option<String>,
+    pub followee_inbox: Option<String>,
+    pub follower_inbox: Option<String>,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::FollowerId",
+        to = "super::user::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    User2,
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::FolloweeId",
+        to = "super::user::Column::Id",
+        on_update = "NoAction",
+        on_delete = "Cascade"
+    )]
+    User1,
+}
+
+impl ActiveModelBehavior for ActiveModel {}

src/entities/mod.rs

@@ -4,3 +4,4 @@ pub mod prelude;
 
 pub mod post;
 pub mod user;
+pub mod follow_relation;

src/entities/prelude.rs

@@ -1,4 +1,5 @@
 //! `SeaORM` Entity. Generated by sea-orm-codegen 0.12.10
 
+pub use super::follow_relation::Entity as FollowRelation;
 pub use super::post::Entity as Post;
 pub use super::user::Entity as User;