extended-salmon•2y ago

dependent select

how can i make a select that will be disabled by default and filled with data from a custom resource only when another select changes

5 Replies

kapa.ai•2y ago

Hi @royercross. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- To create a dependent select in Refine, you can use the useSelect hook. This hook allows you to manage select components when records in a resource need to be used as select options. Here's a basic example of how you can use it:

import { useSelect } from "@refinedev/core";  
  
interface ICategory {  
 id: number;  
 title: string;  
}  
  
const ProductCreate: React.FC = () => {  
 const { options } = useSelect<ICategory>({  
 resource: "categories",  
 defaultValue: 20,  
 });  
  
 return (  
 <label>  
 Select a category:  
 <select>  
 {options?.map((option) => (  
 <option key={option.value} value={option.value}>  
 {option.value}-{option.label}  
 </option>  
 ))}  
 </select>  
 </label>  
 );  
};

import { useSelect } from "@refinedev/core";  
  
interface ICategory {  
 id: number;  
 title: string;  
}  
  
const ProductCreate: React.FC = () => {  
 const { options } = useSelect<ICategory>({  
 resource: "categories",  
 defaultValue: 20,  
 });  
  
 return (  
 <label>  
 Select a category:  
 <select>  
 {options?.map((option) => (  
 <option key={option.value} value={option.value}>  
 {option.value}-{option.label}  
 </option>  
 ))}  
 </select>  
 </label>  
 );  
};

In this example, the useSelect hook is used to fetch data from the "categories" resource and populate the select options. The defaultValue prop is used to set a default selected option. To create a dependent select, you can add a state to your component that will control the enabled status of the second select. Initially, this state can be set to false to disable the second select. When the first select changes, you can update this state to true to enable the second select and fetch data from the resource. Here's a basic example of how you can do it:

import { useState } from "react";
import { useSelect } from "@refinedev/core";  

interface ICategory {  
 id: number;  
 title: string;  
}  

const ProductCreate: React.FC = () => {  
 const [isEnabled, setIsEnabled] = useState(false);
 const { options } = useSelect<ICategory>({  
 resource: "categories",  
 defaultValue: 20,  
 queryOptions: {
    enabled: isEnabled,
  },
 });  

 const handleFirstSelectChange = (value) => {
   // Update the state to enable the second select
   setIsEnabled(true);
 };
return (  
 <>
 <select onChange={handleFirstSelectChange}>  
 {/* Options for the first select */}
 </select> 
 <label>  
 Select a category:  
 <select>  
 {options?.map((option) => (  
 <option key={option.value} value={option.value}>  
 {option.value}-{option.label}  
 </option>  
 ))}  
 </select>  
 </label>  
 </>
 );  
};

import { useState } from "react";
import { useSelect } from "@refinedev/core";  

interface ICategory {  
 id: number;  
 title: string;  
}  

const ProductCreate: React.FC = () => {  
 const [isEnabled, setIsEnabled] = useState(false);
 const { options } = useSelect<ICategory>({  
 resource: "categories",  
 defaultValue: 20,  
 queryOptions: {
    enabled: isEnabled,
  },
 });  

 const handleFirstSelectChange = (value) => {
   // Update the state to enable the second select
   setIsEnabled(true);
 };
return (  
 <>
 <select onChange={handleFirstSelectChange}>  
 {/* Options for the first select */}
 </select> 
 <label>  
 Select a category:  
 <select>  
 {options?.map((option) => (  
 <option key={option.value} value={option.value}>  
 {option.value}-{option.label}  
 </option>  
 ))}  
 </select>  
 </label>  
 </>
 );  
};

In this example, the queryOptions.enabled prop is used to control whether the useSelect hook should fetch data. When the first select changes, the handleFirstSelectChange function is called to update the isEnabled state and enable the second select. Please note that this is a basic example and you might need to adjust it according to your needs. For more information, you can refer to the useSelect documentation (https://refine.dev/docs/data/hooks/use-select). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2y ago

<@210531867777171456> kapa.ai is still learning and improving, please let us know how it did by reacting below

extended-salmonOP•2y ago

@kapa.ai im using antd

kapa.ai•2y ago

Let me check the knowledge base for you. One moment! :books: ---------------------- To create dependent selects with Ant Design in a Refine application, you can use the Select component from Ant Design and the useQuery hook from Refine. The useQuery hook allows you to fetch data from your resources. Here's a basic example of how you can do it:

import { Select } from "antd";
import { useQuery } from "@refinedev/core";

const { Option } = Select;

const ProductCreate: React.FC = () => {
  const [selectedValue, setSelectedValue] = useState(null);
  const { data: firstSelectData } = useQuery({
    resource: "firstResource",
  });
  const { data: secondSelectData } = useQuery({
    resource: "secondResource",
    queryOptions: {
      enabled: !!selectedValue,
      variables: { filter: { basedOn: selectedValue } },
    },
  });

  const handleFirstSelectChange = (value) => {
    setSelectedValue(value);
  };

  return (
    <>
      <Select onChange={handleFirstSelectChange}>
        {firstSelectData?.data.map((item) => (
          <Option key={item.id} value={item.id}>
            {item.name}
          </Option>
        ))}
      </Select>
      <Select disabled={!selectedValue}>
        {secondSelectData?.data.map((item) => (
          <Option key={item.id} value={item.id}>
            {item.name}
          </Option>
        ))}
      </Select>
    </>
  );
};

import { Select } from "antd";
import { useQuery } from "@refinedev/core";

const { Option } = Select;

const ProductCreate: React.FC = () => {
  const [selectedValue, setSelectedValue] = useState(null);
  const { data: firstSelectData } = useQuery({
    resource: "firstResource",
  });
  const { data: secondSelectData } = useQuery({
    resource: "secondResource",
    queryOptions: {
      enabled: !!selectedValue,
      variables: { filter: { basedOn: selectedValue } },
    },
  });

  const handleFirstSelectChange = (value) => {
    setSelectedValue(value);
  };

  return (
    <>
      <Select onChange={handleFirstSelectChange}>
        {firstSelectData?.data.map((item) => (
          <Option key={item.id} value={item.id}>
            {item.name}
          </Option>
        ))}
      </Select>
      <Select disabled={!selectedValue}>
        {secondSelectData?.data.map((item) => (
          <Option key={item.id} value={item.id}>
            {item.name}
          </Option>
        ))}
      </Select>
    </>
  );
};

In this example, the useQuery hook is used to fetch data from the "firstResource" and "secondResource". The second select is disabled by default and only enabled when a value is selected in the first select. The queryOptions.enabled prop is used to control whether the useQuery hook should fetch data for the second select. When the first select changes, the handleFirstSelectChange function is called to update the selectedValue state and enable the second select. Please note that this is a basic example and you might need to adjust it according to your needs. For more information, you can refer to the useQuery documentation (https://refine.dev/docs/data/hooks/use-query) and Ant Design Select documentation (https://ant.design/components/select/). ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2y ago

<@210531867777171456> kapa.ai is still learning and improving, please let us know how it did by reacting below

dependent select

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