Rename main folders and write sql backend adaptor

backend/adaptors/sql/src/migration/mod.rs

@@ -0,0 +1,12 @@
+pub use sea_orm_migration::prelude::*;
+
+mod setup_tables;
+
+pub struct Migrator;
+
+#[async_trait::async_trait]
+impl MigratorTrait for Migrator {
+    fn migrations() -> Vec<Box<dyn MigrationTrait>> {
+        vec![Box::new(setup_tables::Migration)]
+    }
+}

backend/adaptors/sql/src/migration/setup_tables.rs

@@ -0,0 +1,120 @@
+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> {
+        print!("Setting up database...");
+
+        // Stats table
+        manager
+            .create_table(
+                Table::create()
+                    .table(Stats::Table)
+                    .if_not_exists()
+                    .col(
+                        ColumnDef::new(Stats::Id)
+                            .integer()
+                            .not_null()
+                            .auto_increment()
+                            .primary_key(),
+                    )
+                    .col(ColumnDef::new(Stats::EventCount).integer().not_null())
+                    .col(ColumnDef::new(Stats::PersonCount).integer().not_null())
+                    .to_owned(),
+            )
+            .await?;
+
+        // Events table
+        manager
+            .create_table(
+                Table::create()
+                    .table(Event::Table)
+                    .if_not_exists()
+                    .col(ColumnDef::new(Event::Id).string().not_null().primary_key())
+                    .col(ColumnDef::new(Event::Name).string().not_null())
+                    .col(ColumnDef::new(Event::CreatedAt).timestamp().not_null())
+                    .col(ColumnDef::new(Event::Times).json().not_null())
+                    .col(ColumnDef::new(Event::Timezone).string().not_null())
+                    .to_owned(),
+            )
+            .await?;
+
+        // People table
+        manager
+            .create_table(
+                Table::create()
+                    .table(Person::Table)
+                    .if_not_exists()
+                    .col(ColumnDef::new(Person::Name).string().not_null())
+                    .col(ColumnDef::new(Person::PasswordHash).string())
+                    .col(ColumnDef::new(Person::CreatedAt).timestamp().not_null())
+                    .col(ColumnDef::new(Person::Availability).json().not_null())
+                    .col(ColumnDef::new(Person::EventId).string().not_null())
+                    .primary_key(Index::create().col(Person::EventId).col(Person::Name))
+                    .to_owned(),
+            )
+            .await?;
+
+        // Relation
+        manager
+            .create_foreign_key(
+                ForeignKey::create()
+                    .name("FK_person_event")
+                    .from(Person::Table, Person::EventId)
+                    .to(Event::Table, Event::Id)
+                    .on_delete(ForeignKeyAction::Cascade)
+                    .on_update(ForeignKeyAction::Cascade)
+                    .to_owned(),
+            )
+            .await?;
+
+        println!(" done");
+        Ok(())
+    }
+
+    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
+        manager
+            .drop_table(Table::drop().table(Stats::Table).to_owned())
+            .await?;
+        manager
+            .drop_table(Table::drop().table(Person::Table).to_owned())
+            .await?;
+        manager
+            .drop_table(Table::drop().table(Event::Table).to_owned())
+            .await?;
+
+        Ok(())
+    }
+}
+
+/// Learn more at https://docs.rs/sea-query#iden
+#[derive(Iden)]
+enum Stats {
+    Table,
+    Id,
+    EventCount,
+    PersonCount,
+}
+
+#[derive(Iden)]
+enum Event {
+    Table,
+    Id,
+    Name,
+    CreatedAt,
+    Times,
+    Timezone,
+}
+
+#[derive(Iden)]
+enum Person {
+    Table,
+    Name,
+    PasswordHash,
+    CreatedAt,
+    Availability,
+    EventId,
+}