first 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 = "^0.9.2" # sea-orm-migration version
+features = [
+  # Enable following runtime and db backend features if you want to run migration via CLI
+  # "runtime-tokio-native-tls",
+  # "sqlx-postgres",
+]

backend/migration/README.md

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+# Running Migrator CLI
+
+- 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::*;
+
+mod m20220120_000001_create_post_table;
+
+pub struct Migrator;
+
+#[async_trait::async_trait]
+impl MigratorTrait for Migrator {
+    fn migrations() -> Vec<Box<dyn MigrationTrait>> {
+        vec![Box::new(m20220120_000001_create_post_table::Migration)]
+    }
+}

backend/migration/src/m20220120_000001_create_post_table.rs

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+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_table(
+                Table::create()
+                    .table(Posts::Table)
+                    .if_not_exists()
+                    .col(
+                        ColumnDef::new(Posts::Id)
+                            .integer()
+                            .not_null()
+                            .auto_increment()
+                            .primary_key(),
+                    )
+                    .col(ColumnDef::new(Posts::Title).string().not_null())
+                    .col(ColumnDef::new(Posts::Text).string().not_null())
+                    .to_owned(),
+            )
+            .await
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .drop_table(Table::drop().table(Posts::Table).to_owned())
+            .await
+    }
+}
+
+/// Learn more at https://docs.rs/sea-query#iden
+#[derive(Iden)]
+enum Posts {
+    Table,
+    Id,
+    Title,
+    Text,
+}

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;
+}