#is there a way currently to give .order directions by fields ?

3 messages · Page 1 of 1 (latest)

sharp quail
#

as the title

dapper grailBOT
#

Hi @sharp quail. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

#

Yes, you can order your query results based on specific fields using Convex. This is done by defining an index on the field you want to sort by. For example, if you have a books table and you want to sort the books by author, you can define an index on the author field like this:

import { defineSchema, defineTable } from "convex/server";
import { v } from "convex/values";

export default defineSchema({
  books: defineTable({
    author: v.string(),
    title: v.string(),
    text: v.string(),
  }).index("by_author", ["author"]),
});

Then, you can query this index to get all books by a specific author, sorted by the author field:

const austenBooks = await db
  .query("books")
  .withIndex("by_author", q => q.eq("author", "Jane Austen"))
  .collect();

This query instructs Convex to go to the by_author index and find all the entries where doc.author === "Jane Austen". Because the index is sorted by author, this is a very efficient operation.

You can also index multiple fields if you want to sort by more than one field. However, keep in mind that the order of fields in the index definition matters. If you define an index on ["author", "title"], you must first compare the author with .eq before the title in your query.

For more information, you can refer to the Convex documentation on indexes and query performance (https://docs.convex.dev/database/indexes/indexes-and-query-perf#indexing-multiple-fields).

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