fix: sqlite won't update columns anyway

since this migration breaks all sqlite dbs, i changed the original
migration so that future ones won't panic when reaching here. note that,
if you are on sqlite, just `sqlite3 <your_db> .dump > backup.sql` and
then, after rebuilding and re-migrating db, `cat backup.sql | sqlite3 <your_db>`

src/migrations/m20240324_000001_add_addressing.rs

@@ -19,7 +19,7 @@ impl MigrationTrait for Migration {
 					)
 					.col(ColumnDef::new(Addressing::Actor).string().not_null())
 					.col(ColumnDef::new(Addressing::Server).string().not_null())
-					.col(ColumnDef::new(Addressing::Activity).string().not_null())
+					.col(ColumnDef::new(Addressing::Activity).string().null())
 					.col(ColumnDef::new(Addressing::Object).string().null())
 					.col(ColumnDef::new(Addressing::Published).date_time().not_null())
 					.to_owned()

src/migrations/m20240421_000001_make_addressed_activity_nullable.rs

@@ -1,48 +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
-			.alter_table(
-				Table::alter()
-					.table(Addressing::Table)
-					.modify_column(
-						ColumnDef::new(Addressing::Activity)
-							.string()
-							.null()
-					)
-					.to_owned()
-			)
-			.await?;
-
-		Ok(())
-	}
-
-	async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
-		manager
-			.alter_table(
-				Table::alter()
-					.table(Addressing::Table)
-					.modify_column(
-						ColumnDef::new(Addressing::Activity)
-							.string()
-							.not_null()
-							.default("")
-					)
-					.to_owned()
-			)
-			.await?;
-
-		Ok(())
-	}
-}
-
-#[derive(DeriveIden)]
-enum Addressing {
-	Table,
-	Activity,
-}

src/migrations/mod.rs

@@ -10,7 +10,6 @@ mod m20240324_000001_add_addressing;
 mod m20240325_000001_add_deliveries;
 mod m20240325_000002_add_system_key;
 mod m20240418_000001_add_statuses_and_reply_to;
-mod m20240421_000001_make_addressed_activity_nullable;
 
 pub struct Migrator;
 
@@ -28,7 +27,6 @@ impl MigratorTrait for Migrator {
 			Box::new(m20240325_000001_add_deliveries::Migration),
 			Box::new(m20240325_000002_add_system_key::Migration),
 			Box::new(m20240418_000001_add_statuses_and_reply_to::Migration),
-			Box::new(m20240421_000001_make_addressed_activity_nullable::Migration),
 		]
 	}
 }