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import { eq, like, sql, desc, and } from "drizzle-orm";
import type { DrizzleD1Database } from "drizzle-orm/d1";
import * as schema from "../db/schema";
import type { BlogCategory, NewBlogCategory } from "../db/schema";
import { sanitizeSearchInput } from "../lib/utils";
export type BlogCategoryFilters = {
parentId?: string | null;
search?: string;
};
export class BlogCategoriesDal {
constructor(private db: DrizzleD1Database<typeof schema>) {}
async findAll(
filters: BlogCategoryFilters = {},
offset = 0,
limit = 100,
): Promise<BlogCategory[]> {
const conditions = [];
if (filters.parentId !== undefined) {
if (filters.parentId === null) {
conditions.push(sql`${schema.blogCategories.parentId} IS NULL`);
} else {
conditions.push(eq(schema.blogCategories.parentId, filters.parentId));
}
}
if (filters.search) {
const sanitized = sanitizeSearchInput(filters.search);
conditions.push(like(schema.blogCategories.name, `%${sanitized}%`));
}
const query = this.db
.select()
.from(schema.blogCategories)
.orderBy(
schema.blogCategories.displayOrder,
desc(schema.blogCategories.dateCreated),
)
.limit(limit)
.offset(offset);
if (conditions.length > 0) {
return query.where(and(...conditions));
}
return query;
}
async count(filters: BlogCategoryFilters = {}): Promise<number> {
const conditions = [];
if (filters.parentId !== undefined) {
if (filters.parentId === null) {
conditions.push(sql`${schema.blogCategories.parentId} IS NULL`);
} else {
conditions.push(eq(schema.blogCategories.parentId, filters.parentId));
}
}
if (filters.search) {
const sanitized = sanitizeSearchInput(filters.search);
conditions.push(like(schema.blogCategories.name, `%${sanitized}%`));
}
const query = this.db
.select({ count: sql<number>`count(*)` })
.from(schema.blogCategories);
const result =
conditions.length > 0
? await query.where(and(...conditions))
: await query;
return result[0]?.count ?? 0;
}
async findById(id: string): Promise<BlogCategory | undefined> {
const result = await this.db
.select()
.from(schema.blogCategories)
.where(eq(schema.blogCategories.id, id))
.limit(1);
return result[0];
}
async findBySlug(slug: string): Promise<BlogCategory | undefined> {
const result = await this.db
.select()
.from(schema.blogCategories)
.where(eq(schema.blogCategories.slug, slug))
.limit(1);
return result[0];
}
async create(data: NewBlogCategory): Promise<BlogCategory> {
const result = await this.db
.insert(schema.blogCategories)
.values(data)
.returning();
return result[0];
}
async update(
id: string,
data: Partial<Omit<BlogCategory, "id" | "dateCreated">>,
): Promise<BlogCategory | undefined> {
const result = await this.db
.update(schema.blogCategories)
.set(data)
.where(eq(schema.blogCategories.id, id))
.returning();
return result[0];
}
async delete(id: string): Promise<boolean> {
const result = await this.db
.delete(schema.blogCategories)
.where(eq(schema.blogCategories.id, id))
.returning();
return result.length > 0;
}
async slugExists(slug: string, excludeId?: string): Promise<boolean> {
const conditions = [eq(schema.blogCategories.slug, slug)];
if (excludeId) {
conditions.push(sql`${schema.blogCategories.id} != ${excludeId}`);
}
const result = await this.db
.select({ count: sql<number>`count(*)` })
.from(schema.blogCategories)
.where(and(...conditions));
return (result[0]?.count ?? 0) > 0;
}
}
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