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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 | 17x 2x 5x 5x 1x 1x 3x 3x | // Data Access Layer for Blog Revisions
import { eq, desc } from "drizzle-orm";
import type { DrizzleD1Database } from "drizzle-orm/d1";
import * as schema from "../db/schema";
import type { BlogRevision, NewBlogRevision } from "../db/schema";
export class BlogRevisionsDal {
constructor(private db: DrizzleD1Database<typeof schema>) {}
async findByBlogId(blogId: string): Promise<BlogRevision[]> {
return this.db
.select()
.from(schema.blogRevisions)
.where(eq(schema.blogRevisions.blogId, blogId))
.orderBy(desc(schema.blogRevisions.versionNumber));
}
async findLatest(blogId: string): Promise<BlogRevision | undefined> {
const result = await this.db
.select()
.from(schema.blogRevisions)
.where(eq(schema.blogRevisions.blogId, blogId))
.orderBy(desc(schema.blogRevisions.versionNumber))
.limit(1);
return result[0];
}
async create(data: NewBlogRevision): Promise<BlogRevision> {
const result = await this.db
.insert(schema.blogRevisions)
.values(data)
.returning();
return result[0];
}
async getNextVersionNumber(blogId: string): Promise<number> {
const latest = await this.findLatest(blogId);
return latest ? latest.versionNumber + 1 : 1;
}
}
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