Drizzle Team•6mo ago

use limit or undefined

const limit = searchParams?.get('limit'); const shipmentsQuery = db .select() .from(shipment) .orderBy(desc(shipment.createdAt)) .limit(limit? limit : undefined); i want to use limit when is has value if not then use without a limit?

9 Replies

Pradip Chaudhary•6mo ago

Hey @yasserconnect , You need to parse the limit value as int because that's what the limit function expects.

const limit = searchParams?.get("limit");
const limitValue = limit ? parseInt(limit, 10) : null;

const result = await db.select().from(shipment).orderBy(desc(shipment.createdAt));
if (limitValue) {
  result.limit(limitValue);
}

You can also set limitValue to 0 if limit is not there as drizzle treats 0 as having no limit only.

const limit = searchParams?.get("limit");
const limitValue = limit ? parseInt(limit, 10) : 0;

const result = await db.select().from(shipment).orderBy(desc(shipment.createdAt)).limit(limitValue);

yasserconnectOP•6mo ago

nice, i don't know about 0 i was use undefined.. thank you.

rphlmr ⚡•6mo ago

Yes, you can try it here https://drizzle.run/uv3grzocedu7ljmuz3ocowpc

Drizzle Run

Optional limit - Drizzle Run

Pradip Chaudhary•6mo ago

Yess, that's what I did 😊

eXecuteye•5mo ago

This approach does not work anymore from 0.32.1 onwards...

Pradip Chaudhary•5mo ago

Which one exactly @eXecuteye ?

eXecuteye•5mo ago

passing a 0 does apply the limit since 0.32.1 (as highlighted in the release notes) -> it returns 0 rows https://github.com/drizzle-team/drizzle-orm/releases/tag/0.32.1 So this workaround with passing 0 does not work anymore and we also cannot pass null or undefined to "ignore" the limit...

GitHub

Release 0.32.1 · drizzle-team/drizzle-orm

Fix typings for indexes and allow creating indexes on 3+ columns mixing columns and expressions - thanks @lbguilherme! Added support for "limit 0" in all dialects - closes #2011 - thanks ...

rphlmr ⚡•5mo ago

https://github.com/drizzle-team/drizzle-orm/pull/2255/files I would try passing a negative number

    const limitSql = typeof limit === 'object' || (typeof limit === 'number' && limit >= 0)
            ? sql` limit ${limit}`
            : undefined;

    const limitSql = typeof limit === 'object' || (typeof limit === 'number' && limit >= 0)
            ? sql` limit ${limit}`
            : undefined;

Pradip Chaudhary•5mo ago

Thanks @eXecuteye and @Raphaël M (@rphlmr) ⚡ for this, I will keep this in mind now

Gaming

Programming

use limit or undefined

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