init

migration/src/lib.rs

@@ -1,16 +1,12 @@
 pub use sea_orm_migration::prelude::*;
 
 mod m20220101_000001_create_table;
-mod m20260808_000002_add_message_channel_id_id_index;
 
 pub struct Migrator;
 
 #[async_trait::async_trait]
 impl MigratorTrait for Migrator {
     fn migrations() -> Vec<Box<dyn MigrationTrait>> {
-        vec![
-            Box::new(m20220101_000001_create_table::Migration),
-            Box::new(m20260808_000002_add_message_channel_id_id_index::Migration),
-        ]
+        vec![Box::new(m20220101_000001_create_table::Migration)]
     }
 }

migration/src/m20220101_000001_create_table.rs

@@ -505,6 +505,12 @@ impl MigrationTrait for Migration {
                             .to(Alias::new("message"), Alias::new("id"))
                             .on_delete(ForeignKeyAction::SetNull),
                     )
+                    .index(
+                        Index::create()
+                            .name("idx_message_channel_id_id")
+                            .col(Alias::new("channel_id"))
+                            .col(Alias::new("id")),
+                    )
                     .to_owned(),
             )
             .await?;

migration/src/m20260808_000002_add_message_channel_id_id_index.rs

@@ -1,31 +0,0 @@
-use sea_orm_migration::prelude::*;
-
-#[derive(DeriveMigrationName)]
-pub struct Migration;
-
-#[async_trait::async_trait]
-impl MigrationTrait for Migration {
-    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
-        manager
-            .create_index(
-                Index::create()
-                    .name("idx_message_channel_id_id")
-                    .table(Alias::new("message"))
-                    .col(Alias::new("channel_id"))
-                    .col(Alias::new("id"))
-                    .to_owned(),
-            )
-            .await
-    }
-
-    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
-        manager
-            .drop_index(
-                Index::drop()
-                    .name("idx_message_channel_id_id")
-                    .table(Alias::new("message"))
-                    .to_owned(),
-            )
-            .await
-    }
-}