initial commit

backend/migration/Cargo.toml

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+[package]
+name = "migration"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[lib]
+name = "migration"
+path = "src/lib.rs"
+
+[dependencies]
+async-std = { version = "^1", features = ["attributes", "tokio1"] }
+
+[dependencies.sea-orm-migration]
+version = "^0.9.0"
+features = [
+    "runtime-actix-rustls",
+    "sqlx-postgres",
+]

backend/migration/README.md

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+# Running Migrator CLI
+
+- Generate a new migration file
+    ```sh
+    cargo run -- migrate generate MIGRATION_NAME
+    ```
+- Apply all pending migrations
+    ```sh
+    cargo run
+    ```
+    ```sh
+    cargo run -- up
+    ```
+- Apply first 10 pending migrations
+    ```sh
+    cargo run -- up -n 10
+    ```
+- Rollback last applied migrations
+    ```sh
+    cargo run -- down
+    ```
+- Rollback last 10 applied migrations
+    ```sh
+    cargo run -- down -n 10
+    ```
+- Drop all tables from the database, then reapply all migrations
+    ```sh
+    cargo run -- fresh
+    ```
+- Rollback all applied migrations, then reapply all migrations
+    ```sh
+    cargo run -- refresh
+    ```
+- Rollback all applied migrations
+    ```sh
+    cargo run -- reset
+    ```
+- Check the status of all migrations
+    ```sh
+    cargo run -- status
+    ```

backend/migration/src/lib.rs

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+pub use sea_orm_migration::prelude::*;
+
+//❗ After creating a new migration file, remove the sample migration below 👇
+mod m20220101_000001_create_todo_table;
+
+pub struct Migrator;
+
+#[async_trait::async_trait]
+impl MigratorTrait for Migrator {
+    fn migrations() -> Vec<Box<dyn MigrationTrait>> {
+        vec![
+            //❗ After creating a new migration file, remove the sample migration below 👇
+            Box::new(m20220101_000001_create_todo_table::Migration)
+        ]
+    }
+}

backend/migration/src/m20220101_000001_create_todo_table.rs

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+use crate::sea_orm::{Statement, ConnectionTrait};
+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> {
+        //❗ Do not replace the sample below 👇
+        //❗ Instead, create a new migration file and add your own migration code there.
+        //❗ See the README for more information.
+        let sql = r#"
+            CREATE TABLE IF NOT EXISTS todo (
+                id SERIAL PRIMARY KEY,
+                title VARCHAR(255) UNIQUE NOT NULL,
+                description VARCHAR(255) NOT NULL,
+                done BOOLEAN NOT NULL DEFAULT FALSE,
+                created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+                updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+            );
+        "#;
+        let stmt = Statement::from_string(manager.get_database_backend(), sql.to_owned());
+        manager.get_connection().execute(stmt).await.map(|_| ())
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        let sql = "DROP TABLE todo";
+        let stmt = Statement::from_string(manager.get_database_backend(), sql.to_owned());
+        manager.get_connection().execute(stmt).await.map(|_| ())
+    }
+}

backend/migration/src/main.rs

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+use sea_orm_migration::prelude::*;
+
+#[async_std::main]
+async fn main() {
+    cli::run_cli(migration::Migrator).await;
+}