openhands
cbf056838f
Introduce getCachedAdminCount to cache un-filtered table count(*) queries in Redis for admin lists (starting with UsersPage), avoiding heavy full table scans on every request while keeping exact counts for search/filtered queries.
27 lines
904 B
TypeScript
27 lines
904 B
TypeScript
import { count, type SQL } from "drizzle-orm";
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import type { MySqlTable } from "drizzle-orm/mysql-core";
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import { db } from "@/lib/db";
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import { redisCache } from "@/lib/redis-cache";
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/**
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* Caches admin list totals when no filters are applied (no 'where' clause),
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* preventing heavy COUNT(*) table scans on every request for large tables.
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* Filtered queries bypass cache to ensure exact search result counts.
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*/
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export async function getCachedAdminCount(
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table: MySqlTable,
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cacheKey: string,
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where?: SQL | undefined,
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): Promise<number> {
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// Only cache the global count (where = undefined)
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if (where) {
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const [row] = await db.select({ total: count() }).from(table).where(where);
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return Number(row?.total ?? 0);
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}
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return await redisCache(`admin:count:${cacheKey}`, 60, async () => {
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const [row] = await db.select({ total: count() }).from(table);
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return Number(row?.total ?? 0);
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});
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}
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