Arrays in query params with models are not passed properly

[ivanmaxlogiudice]

What version of Elysia is running?

1.2.25

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What steps can reproduce the bug?

import { treaty } from '@elysiajs/eden'
import { describe, expect, it } from 'bun:test'
import { Elysia, t } from 'elysia'

const querySchema = t.Object({
    tags: t.Array(t.String()),
})

const model = new Elysia().model({
    query: querySchema,
})

describe.only('Failing: string array or string query', async () => {
    const server = new Elysia()
  
        .get('/query', async ({ query: { tags } }) => {
            console.log(tags)
            return { tags }
        }, {
            query: querySchema,
        })

        .use(model)
        .get('/querymodel', async ({ query: { tags } }) => {
            console.log(tags)
            return { tags }
        }, {
            query: 'query',
        })

    const api = treaty(server)

    // OK
    it('query: string array', async () => {
        const res = await api.query.get({ query: { tags: ['a', 'b', 'c'] } })
        if (res.error)
            throw res.error
        expect(res.data.tags).toEqual(['a', 'b', 'c'])
    })

    // Throws error
    it('query2: string array', async () => {
        const res = await api.querymodel.get({ query: { tags: ['a', 'b', 'c'] } })
        if (res.error)
            throw res.error
        expect(res.data.tags).toEqual(['a', 'b', 'c'])
    })
})

What is the expected behavior?

When defining a query parameter schema using model in Elysia, the query does not correctly handle arrays of strings. The same schema works as expected when applied directly to the route but fails when referenced as a model.

What do you see instead?

error: [object Object]
 status: 422,
  value: {
  type: "validation",
  on: "query",
  summary: "Expected array",
  property: "/tags",
  message: "Expected array",
  expected: [Object ...],
  found: [Object ...],
  errors: [
    [Object ...]
  ],
},

Additional information

No response

Have you try removing the node_modules and bun.lockb and try again yet?

yes

[ivanmaxlogiudice]

still happening on version 1.3.4

error: [object Object]
 status: 422,
  value: {
  type: "validation",
  on: "query",
  summary: "Property 'tags' should be one of: 'ArrayString', 'array'",
  property: "/tags",
  message: "Expected union value",
  expected: [Object ...],
  found: [Object ...],
  errors: [
    [Object ...]
  ],
}

[SaltyAom]

Fixed by 7ba0d07, going to published under 1.3.9

[crazyjncsu]

I converted my schemas to zod. This is the only thing that is broken:

											{
												query: z.object({
													tool: z.array(z.string()),
												}),
											}

I get the 422 when passing as ?tool=whatever.

But it works when using TypeBox:

											{
												query: t.Object({
													tool: t.Array(t.String()),
												}),
											}