rowt/migration/src/m20230209_074936_create_trip.rs

use sea_orm_migration::prelude::*;
use sea_query::Expr;

use crate::m20230208_114547_create_day::Day;
use crate::m20230209_063357_create_user::User;

#[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(Trip::Table)
                    .if_not_exists()
                    .col(ColumnDef::new(Trip::Day).date().not_null())
                    .foreign_key(
                        ForeignKey::create()
                            .name("FK_day")
                            .from(Trip::Table, Trip::Day)
                            .to(Day::Table, Day::Day),
                    )
                    .col(ColumnDef::new(Trip::UserId).integer().not_null())
                    .foreign_key(
                        ForeignKey::create()
                            .name("FK_userid")
                            .from(Trip::Table, Trip::UserId)
                            .to(User::Table, User::Id),
                    )
                    .col(ColumnDef::new(Trip::CoxId).integer())
                    .foreign_key(
                        ForeignKey::create()
                            .name("FK_coxid")
                            .from(Trip::Table, Trip::CoxId)
                            .to(User::Table, User::Id),
                    )
                    .col(ColumnDef::new(Trip::Begin).string())
                    .col(
                        ColumnDef::new(Trip::Created)
                            .timestamp()
                            .not_null()
                            .default(Expr::current_timestamp()),
                    )
                    .primary_key(
                        Index::create()
                            .col(Trip::Day)
                            .col(Trip::UserId)
                            .col(Trip::CoxId)
                            .col(Trip::Begin),
                    )
                    .to_owned(),
            )
            .await
    }

    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        manager
            .drop_table(Table::drop().table(Trip::Table).to_owned())
            .await
    }
}

/// Learn more at https://docs.rs/sea-query#iden
#[derive(Iden)]
enum Trip {
    Table,
    Day,
    UserId,
    CoxId,
    Begin,
    Created,
}