2021-10-15 22:48:49 +08:00

103 lines
2.6 KiB
Rust

use sea_orm::entity::prelude::*;
#[derive(Clone, Debug, PartialEq, DeriveEntityModel)]
#[sea_orm(table_name = "cake")]
pub struct Model {
#[sea_orm(primary_key)]
pub id: i32,
pub name: String,
#[sea_orm(column_type = "Decimal(Some((19, 4)))")]
pub price: Decimal,
pub bakery_id: Option<i32>,
pub gluten_free: bool,
pub serial: Uuid,
}
#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {
#[sea_orm(
belongs_to = "super::bakery::Entity",
from = "Column::BakeryId",
to = "super::bakery::Column::Id",
on_update = "Cascade",
on_delete = "Cascade"
)]
Bakery,
#[sea_orm(has_many = "super::lineitem::Entity")]
Lineitem,
}
impl Related<super::bakery::Entity> for Entity {
fn to() -> RelationDef {
Relation::Bakery.def()
}
}
impl Related<super::baker::Entity> for Entity {
fn to() -> RelationDef {
super::cakes_bakers::Relation::Baker.def()
}
fn via() -> Option<RelationDef> {
Some(super::cakes_bakers::Relation::Cake.def().rev())
}
}
impl Related<super::lineitem::Entity> for Entity {
fn to() -> RelationDef {
Relation::Lineitem.def()
}
}
impl ActiveModelBehavior for ActiveModel {
fn new() -> Self {
use sea_orm::Set;
Self {
serial: Set(Uuid::new_v4()),
..ActiveModelTrait::default()
}
}
fn before_save(self, insert: bool) -> Result<Self, DbErr> {
use rust_decimal_macros::dec;
if self.price.as_ref() == &dec!(0) {
Err(DbErr::Custom(format!(
"[before_save] Invalid Price, insert: {}",
insert
)))
} else {
Ok(self)
}
}
fn after_save(self, insert: bool) -> Result<Self, DbErr> {
use rust_decimal_macros::dec;
if self.price.as_ref() < &dec!(0) {
Err(DbErr::Custom(format!(
"[after_save] Invalid Price, insert: {}",
insert
)))
} else {
Ok(self)
}
}
fn before_delete(self) -> Result<Self, DbErr> {
if self.name.as_ref().contains("(err_on_before_delete)") {
Err(DbErr::Custom(
"[before_delete] Cannot be deleted".to_owned(),
))
} else {
Ok(self)
}
}
fn after_delete(self) -> Result<Self, DbErr> {
if self.name.as_ref().contains("(err_on_after_delete)") {
Err(DbErr::Custom("[after_delete] Cannot be deleted".to_owned()))
} else {
Ok(self)
}
}
}