53 lines
1.8 KiB
Rust
53 lines
1.8 KiB
Rust
//! Ensures the built-in alternative display currencies always exist.
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//!
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//! EUR is the base currency and is never stored. For now the only alternative is
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//! the Czech koruna (CZK); the admin sets its exchange rate and can disable it.
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//! We insert each one only when its `code` is missing, so an admin's rate/enabled
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//! changes are never overwritten on the next boot.
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use async_trait::async_trait;
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use loco_rs::prelude::*;
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use sea_orm::{ActiveModelTrait, ColumnTrait, EntityTrait, PaginatorTrait, QueryFilter, Set};
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use crate::models::currencies;
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use crate::shared::currency::{self, SCALE};
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/// `(code, symbol, default_rate_e4)` — default rate is a placeholder the admin
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/// is expected to update from the live FX rate.
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const BUILTINS: [(&str, &str, i64); 1] = [("CZK", "Kč", 25 * SCALE)];
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pub struct CurrencySeeder;
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#[async_trait]
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impl Initializer for CurrencySeeder {
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fn name(&self) -> String {
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"currency-seeder".to_string()
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}
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async fn before_run(&self, ctx: &AppContext) -> Result<()> {
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for (code, symbol, rate_e4) in BUILTINS {
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let exists = currencies::Entity::find()
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.filter(currencies::Column::Code.eq(code))
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.count(&ctx.db)
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.await?
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> 0;
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if exists {
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continue;
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}
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currencies::ActiveModel {
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code: Set(code.to_string()),
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symbol: Set(symbol.to_string()),
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rate_e4: Set(rate_e4),
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enabled: Set(true),
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..Default::default()
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}
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.insert(&ctx.db)
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.await?;
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tracing::info!(currency = code, "seeded display currency");
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}
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// Prime the process-wide snapshot used by the navbar/settings chrome.
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currency::refresh_snapshot(&ctx.db).await?;
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Ok(())
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}
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}
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