反应路由器，Function 没有得到道具

Question

This logic is about filtering houses based on filters (such as purpose, price etc) when I change the filters nothing happens (no url change) or no error on console. It looks like data is not being passed to searchProperties.

I am unable to find any solution.

Note: Ignore comments.

import classes from "./FilterProperties.module.css";

import { useState } from "react";
import { filterData, getFilterValues } from "../../lib/filterData";
import {
  useLocation,useSearchParams, useNavigate} from "react-router-dom";

import DropDown from "./DropDown";

const FilterProperties = () => {
  const location = useLocation();
  const [filters, setFilters] = useState(filterData);
  const [searchParams, setSearchParams] = useSearchParams();
  const navigate = useNavigate();

  const searchProperties = (filterValues) => {
    const path = location.pathname;
    console.log(path);
    const query = searchParams.get("query");
    console.log(query); // undefined

    const values = getFilterValues(filterValues); // error
    // console.log(values);
    values.forEach((item) => {
      setSearchParams[item.name] = item.value;
    });

    navigate({ pathname: path, query });
  };

  return (
    <div className={classes.item}>
      {filters.map((filter) => (
        <DropDown
          key={filter.queryName}
          placeholder={filter.placeholder}
          filter={filter}
          onChange={(e) => {
            searchProperties({ [filter.queryName]: e.target.value });
          }}
        />
      ))}
    </div>
  );
};

export default FilterProperties;

Answer 1

It seems you are misusing the setSearchParams function. The useSearchParams hook returns a URLSearchParams object and a setSearchParams function that works similarly to the navigate function but only updates the search part of the URL. The basic gist is that you only need to iterate over the filter key-value pairs, update the searchParams object, and then issue the imperative navigation with the updated query parameters.

Example:

...
const [searchParams, setSearchParams] = useSearchParams();
...

const searchProperties = (filterValues) => {
  const values = getFilterValues(filterValues); // *

  values.forEach(({ name, value }) => {
    searchParams.set(name, value); // <-- set query parameter value
  });

  setSearchParams(searchParams); // <-- update query params
};

* Note: I am assuming that getFilterValues(filterValues) functions and returns all the filter key-value pairs the UI is working with.