CZK implemented

migration/src/m20260623_000004_currencies.rs

@@ -0,0 +1,31 @@
+use loco_rs::schema::*;
+use sea_orm_migration::prelude::*;
+
+#[derive(DeriveMigrationName)]
+pub struct Migration;
+
+#[async_trait::async_trait]
+impl MigrationTrait for Migration {
+    async fn up(&self, m: &SchemaManager) -> Result<(), DbErr> {
+        // Buyer-selectable display currencies. EUR is the base/transaction
+        // currency and is NOT stored here; each row is an alternative the buyer
+        // can switch to, whose prices are the EUR price recalculated at
+        // `rate_e4` (units of this currency per 1 EUR, scaled ×10000). For now
+        // the only row is CZK, seeded by `initializers::currency_seeder`.
+        create_table(m, "currencies",
+            &[
+            ("id", ColType::PkAuto),
+            ("code", ColType::StringUniq),
+            ("symbol", ColType::String),
+            ("rate_e4", ColType::BigIntegerWithDefault(10_000)),
+            ("enabled", ColType::BooleanWithDefault(true)),
+            ],
+            &[
+            ]
+        ).await
+    }
+
+    async fn down(&self, m: &SchemaManager) -> Result<(), DbErr> {
+        drop_table(m, "currencies").await
+    }
+}