refactor(nestjs): currencies module

packages/server/src/modules/Currencies/queries/GetCurrencies.service.ts

@@ -0,0 +1,29 @@
+import { Inject, Injectable } from "@nestjs/common";
+import { Currency } from "../models/Currency.model";
+import { TenantModelProxy } from "../../System/models/TenantBaseModel";
+import { TransformerInjectable } from "../../Transformer/TransformerInjectable.service";
+import { CurrencyTransformer } from "../Currency.transformer";
+
+@Injectable()
+export class GetCurrenciesService {
+  constructor(
+    @Inject(Currency.name)
+    private readonly currencyModel: TenantModelProxy<typeof Currency>,
+    private readonly transformerInjectable: TransformerInjectable,
+  ) {
+
+  }
+  /**
+   * Retrieves currencies list.
+   * @return {Promise<ICurrency[]>}
+   */
+  public async getCurrencies(): Promise<Currency[]> {
+    const currencies = await this.currencyModel().query().onBuild((query) => {
+      query.orderBy('createdAt', 'ASC');
+    });
+    return this.transformerInjectable.transform(
+      currencies,
+      new CurrencyTransformer()
+    );
+  }
+}