раскидал структуру для монорепозитория

backend/src/models/expense.rs

@@ -0,0 +1,32 @@
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Serialize, Deserialize, ToSchema)]
+#[sea_orm(table_name = "expense")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i32,
+    pub category_id: i32,
+    pub amount: Decimal,
+    pub description: Option<String>,
+    pub created_at: DateTime,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::category::Entity",
+        from = "Column::CategoryId",
+        to = "super::category::Column::Id"
+    )]
+    Category,
+}
+
+impl Related<super::category::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Category.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}