大海
59 lines
2.1 KiB
TypeScript
59 lines
2.1 KiB
TypeScript
// Auto-generated Book service
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import { queryAll, queryOne, execute } from "../db/client.js";
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import type { Book, CreateBookInput, UpdateBookInput } from "../types/index.js";
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export class BookService {
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/** List all books */
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list(): Book[] {
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return queryAll<Book>("SELECT * FROM books ORDER BY created_at DESC");
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}
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/** Get by ID */
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getById(id: string): Book | undefined {
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return queryOne<Book>("SELECT * FROM books WHERE id = ?", [id]);
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}
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/** Create */
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create(input: CreateBookInput): Book {
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const id = crypto.randomUUID();
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const now = new Date().toISOString();
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const hasCreatedAt = true;
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const hasUpdatedAt = true;
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const cols = ["id", "user_id", "title", "description", "status", "data", "created_at", "updated_at"];
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const placeholders = cols.map(() => "?").join(", ");
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const values = [id, input.userId ?? null, input.title ?? null, input.description ?? null, input.status ?? null, input.data ?? null, now, now];
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execute(`INSERT INTO books (${cols.join(", ")}) VALUES (${placeholders})`, values);
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return this.getById(id)!;
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}
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/** Update */
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update(id: string, input: UpdateBookInput): Book | undefined {
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const existing = this.getById(id);
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if (!existing) return undefined;
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const sets: string[] = [];
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const values: unknown[] = [];
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if (input.userId !== undefined) { sets.push("user_id = ?"); values.push(input.userId); }
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if (input.title !== undefined) { sets.push("title = ?"); values.push(input.title); }
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if (input.description !== undefined) { sets.push("description = ?"); values.push(input.description); }
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if (input.status !== undefined) { sets.push("status = ?"); values.push(input.status); }
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if (input.data !== undefined) { sets.push("data = ?"); values.push(input.data); }
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if (sets.length === 0) return existing;
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sets.push("updated_at = ?");
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values.push(new Date().toISOString());
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values.push(id);
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execute(`UPDATE books SET ${sets.join(", ")} WHERE id = ?`, values);
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return this.getById(id)!;
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}
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/** Delete */
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delete(id: string): boolean {
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const result = execute("DELETE FROM books WHERE id = ?", [id]);
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return result.changes > 0;
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}
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}
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