extended-salmon•8mo ago

Error data fetching

Hi Team. My questions is might be stupid but i'm very begineer in coding. so i get Error: Objects are not valid as a React child (found: object with keys {created_at, base_price, id, property_name, property_type, address, area, city, province}). If you meant to render a collection of children, use an array instead. my stack is using supabase i already try to get other data like property list and profiles list and it's works magically. auto generated code by inferencer is attached secondly i want to ask you how is inferencer know what kind of table i try to point? because in my case i just change some naming in file name (_layout.view_booking._index.tsx) and in the root.tsx

message.txt

33 Replies

kapa.ai•8mo ago

Hi @Alka. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- The error you're encountering, "Objects are not valid as a React child", typically occurs when you're trying to render an object directly inside a JSX expression. In React, you can only render strings, numbers, and arrays directly. If you want to render an object, you need to convert it into one of these types first. The inferencer in Refine works by analyzing your data and generating code based on the structure and types of the data. It doesn't know about your database tables directly, but it infers information based on the data you provide to it. If you're having trouble with the inferencer, it might be because the data structure doesn't match what the inferencer expects. For example, if you're trying to render an object directly, the inferencer might not be able to generate the correct code. Without seeing your code, it's hard to provide a specific solution. However, you can try to debug the issue by checking the following: 1. Make sure you're not trying to render an object directly. If you have an object that you want to display, you need to convert it into a string or an array first. 2. Check the data you're providing to the inferencer. Make sure it matches the structure and types that the inferencer expects. 3. If you're using a custom data provider, make sure it's implemented correctly. The data provider is responsible for fetching data from your backend and providing it to Refine in the correct format. Unfortunately, the extracts provided do not contain specific code examples or further details that could help in resolving your issue. For more detailed guidance, you might want to check the Refine documentation (https://refine.dev/docs) or seek help from the Refine community. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•8mo ago

<@337909876703625216> kapa.ai is still learning and improving, please let us know how it did by reacting below

extended-salmon•8mo ago

here is my data structure

csvjson.json

extended-salmon•8mo ago

@kapa.ai

kapa.ai•8mo ago

Let me check the knowledge base for you. One moment! :books: Sorry @Alka, I seem to be having a bit of trouble. Don't worry though, I've pinged my supprt and they will try to fix me up! :technologist: Perhaps try again in 15mins?

extended-salmon•8mo ago

@kapa.ai

kapa.ai•8mo ago

extended-salmon•8mo ago

if i have multiple uuid in those table due to some relation, is that the reason maybe? @kapa.ai

kapa.ai•8mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- Having multiple UUIDs in a table due to relationships should not inherently cause the error you're seeing. However, how you handle and render these UUIDs in your React components could potentially lead to issues. If you're trying to render an object (which could be a record from your table) directly in JSX, you'll encounter the "Objects are not valid as a React child" error. This could happen if you're trying to render a related record (represented by a UUID) directly. For example, if you have a booking object with a related property object, and you're trying to do something like this:

<div>{booking.property}</div>

<div>{booking.property}</div>

This will cause an error because booking.property is an object, and you can't render objects directly in JSX. Instead, you should access the specific fields of the property object that you want to render. For example:

<div>{booking.property.property_name}</div>

<div>{booking.property.property_name}</div>

This will render the property_name of the related property object, which should be a string and therefore can be rendered directly in JSX. Remember, when dealing with relationships in Refine, you can use data hooks like useOne or useMany to fetch and manage related data. You can find more information about this in the Refine documentation on data relationships (https://refine.dev/docs/guides-concepts/tables/#relationships-). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•8mo ago

<@337909876703625216> kapa.ai is still learning and improving, please let us know how it did by reacting below

extended-salmon•8mo ago

so where i should edit that? @kapa.ai

kapa.ai•8mo ago

Let me check the knowledge base for you. One moment! :books: ---------------------- The error you're encountering is likely happening in the component where you're trying to render the data. You'll need to locate this component and update the code to correctly handle and render the object data. If you're using Refine's <Table> component to display your data, you'll want to check the render prop of your <Table.Column> components. This is where you define how the data for each column is displayed. Here's an example from the extracts:

<Table.Column<TCanvas>  
 dataIndex="name"  
 title="Invoice Name"  
 render={(_, record) => {  
 return `Invoice_#${record.id}${record.name}`;  
 }}  
/>

<Table.Column<TCanvas>  
 dataIndex="name"  
 title="Invoice Name"  
 render={(_, record) => {  
 return `Invoice_#${record.id}${record.name}`;  
 }}  
/>

In this example, the render prop is a function that takes the current record as an argument and returns a string to be displayed in the table cell. If you're trying to display an object directly in a similar function, you'll need to update this function to return a string or JSX element instead. If you're not sure where to find this code, you might want to start by looking in the file where you're seeing the error. If the error message doesn't tell you the file, you can try searching your project for the name of the table or the specific field that's causing the issue. Remember, without seeing your specific code, it's hard to provide a more specific answer. If you're still having trouble, you might want to seek help from the Refine community or check the Refine documentation (https://refine.dev/docs) for more guidance. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•8mo ago

<@337909876703625216> kapa.ai is still learning and improving, please let us know how it did by reacting below

extended-salmon•8mo ago

import { MuiListInferencer } from "@refinedev/inferencer/mui"; export default function ViewBookingList() { return <MuiListInferencer />; } i use the template that coming from the quickstart @kapa.ai @kapa.ai

kapa.ai•8mo ago

extended-salmon•8mo ago

@kapa.ai

kapa.ai•8mo ago

extended-salmon•8mo ago

@kapa.ai

kapa.ai•8mo ago

extended-salmon•8mo ago

@kapa.ai

kapa.ai•8mo ago

conscious-sapphire•8mo ago

Hello @Alka I think your issue is arised from here:

{
                field: "property_id",
                flex: 1,
                headerName: "Property",
                minWidth: 300,
                renderCell: function render({ value }) {
                    return propertyIsLoading ? (
                        <>Loading...</>
                    ) : (
                        propertyData?.data?.find((item) => item.id === value)
                    );
                },
            },

{
                field: "property_id",
                flex: 1,
                headerName: "Property",
                minWidth: 300,
                renderCell: function render({ value }) {
                    return propertyIsLoading ? (
                        <>Loading...</>
                    ) : (
                        propertyData?.data?.find((item) => item.id === value)
                    );
                },
            },

In renderCell's function, If it's not loading, you are returning whole object. You have a similar issue in another column too. So you can to something like this:

{
                field: "property_id",
                flex: 1,
                headerName: "Property",
                minWidth: 300,
                renderCell: function render({ value }) {
                    return propertyIsLoading ? (
                        <>Loading...</>
                    ) : (
                        <TextField>propertyData?.data?.find((item) => item.id === value)?.name</Textfield>
                    );
                },
            },

{
                field: "property_id",
                flex: 1,
                headerName: "Property",
                minWidth: 300,
                renderCell: function render({ value }) {
                    return propertyIsLoading ? (
                        <>Loading...</>
                    ) : (
                        <TextField>propertyData?.data?.find((item) => item.id === value)?.name</Textfield>
                    );
                },
            },

Here, we are returning data, wrapped with <TextField /> component, I assumed it has a name but you can return anything else, like title based on your data.

extended-salmon•8mo ago

@batuhanw basically the column name is similar hence it complaining right? i try to change the name in my db to something else, it works now

conscious-sapphire•8mo ago

Inferencer makes requests to your API, and tries to generate components by "guessing". So it could be an issue with naming, it's for development purpose. It's better to just copy/paste the generated code into your component, and modify it as needed. Because inferencer doesn't generate code that is guaranteed to work. But you can still use it as to bootstrap obvious code

extended-salmon•8mo ago

so basically inferencer is helping me to generate the data structure from that generated code i copy paste it with the fix right?

conscious-sapphire•8mo ago

Generate the frontend code based on your API responses, yeah Yeah, from the UI, you can copy the code

extended-salmon•8mo ago

so that's why there is always this pop up

extended-salmon•8mo ago

gotcha

conscious-sapphire•8mo ago

Then you can replace your component, where you have <MuiListInferecencer />

extended-salmon•8mo ago

yep2

conscious-sapphire•8mo ago

Yeah, we wanted to make it obvious for people 😅

extended-salmon•8mo ago

i was thinking it was really cool feature like a magic thanks mate for the help, it's very easy now to build crud apps.

conscious-sapphire•8mo ago

Yeah, it's almost like a magic 😄 By the way, we have some ideas which we evaluate for enterprise users internally, generating code, but reliable one, not with guess approach. Good to hear mate, take care!