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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | 78x 2x 2x 2x 1x 1x 3x 3x 2x 2x 1x 3x 1x 3x 3x | // Data Access Layer for Blog Images
import { and, asc, eq, sql } from "drizzle-orm";
import type { DrizzleD1Database } from "drizzle-orm/d1";
import type { BlogImage, NewBlogImage } from "../db/schema/index.js";
import * as schema from "../db/schema/index.js";
export class BlogImagesDal {
constructor(private db: DrizzleD1Database<typeof schema>) {}
async findByBlogId(blogId: string): Promise<BlogImage[]> {
return this.db
.select()
.from(schema.blogImages)
.where(eq(schema.blogImages.blogId, blogId))
.orderBy(asc(schema.blogImages.sortOrder));
}
async findById(id: number): Promise<BlogImage | undefined> {
const result = await this.db
.select()
.from(schema.blogImages)
.where(eq(schema.blogImages.id, id))
.limit(1);
return result[0];
}
async create(data: NewBlogImage): Promise<BlogImage> {
const result = await this.db
.insert(schema.blogImages)
.values(data)
.returning();
return result[0];
}
async update(
id: number,
data: Partial<Omit<BlogImage, "id" | "dateCreated">>,
): Promise<BlogImage | undefined> {
const result = await this.db
.update(schema.blogImages)
.set({ ...data, dateUpdated: new Date() })
.where(eq(schema.blogImages.id, id))
.returning();
return result[0];
}
async delete(id: number): Promise<void> {
await this.db.delete(schema.blogImages).where(eq(schema.blogImages.id, id));
}
async reorder(blogId: string, imageIds: number[]): Promise<void> {
// D1 has no BEGIN/COMMIT (db.transaction() throws at runtime); batch()
// is the atomic unit.
if (imageIds.length === 0) return;
const updates = imageIds.map((imageId, i) =>
this.db
.update(schema.blogImages)
.set({ sortOrder: i, dateUpdated: new Date() })
.where(
and(
eq(schema.blogImages.id, imageId),
eq(schema.blogImages.blogId, blogId),
),
),
);
await this.db.batch(
updates as [(typeof updates)[number], ...typeof updates],
);
}
async getNextSortOrder(blogId: string): Promise<number> {
const result = await this.db
.select({ maxSort: sql<number>`COALESCE(MAX(sort_order), -1)` })
.from(schema.blogImages)
.where(eq(schema.blogImages.blogId, blogId));
return (result[0]?.maxSort ?? -1) + 1;
}
}
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