权限没有,则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存,跨进程需要再加一层缓存:redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - Update URL with value from input on click with React - Stack Overflow
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javascript - Update URL with value from input on click with React - Stack Overflow

programmeradmin9浏览0评论

I'm trying to get the value of an input to be captured and then to update part of the URL with that value, all by doing a simple on click with React, ES6 etc. Basically a simple search functionality

So my ponent looks something like this:

class SearchInput extends Component {
  constructor() {
    super()

    this.state = {
      query: ''
    }
  }

  ponentDidMount = () => {
    const handleSearchURL = window.location('/search/'+this.state.query+'/some-action')
    this.setState({
      handleSearch: handleSearchURL
    })
  }

  queryChange = (evt) => {
    this.setState({query: evt.target.value})
  }

  render() {
    const { handleSearch, placeholder } = this.props
    return (
      <form>
        <input id="site-search" type="search" placeholder={placeholder} value={this.state.query} />
        <input type="submit" value="Search" onClick={this.handleSearch} />
      </form>
    )
  }
}

but this just gives me a lot of errors and it seems to don't like window.location. What's the best way to achieve this? I'm using react-router so I'm also happy if there is a better way with that

I'm trying to get the value of an input to be captured and then to update part of the URL with that value, all by doing a simple on click with React, ES6 etc. Basically a simple search functionality

So my ponent looks something like this:

class SearchInput extends Component {
  constructor() {
    super()

    this.state = {
      query: ''
    }
  }

  ponentDidMount = () => {
    const handleSearchURL = window.location('/search/'+this.state.query+'/some-action')
    this.setState({
      handleSearch: handleSearchURL
    })
  }

  queryChange = (evt) => {
    this.setState({query: evt.target.value})
  }

  render() {
    const { handleSearch, placeholder } = this.props
    return (
      <form>
        <input id="site-search" type="search" placeholder={placeholder} value={this.state.query} />
        <input type="submit" value="Search" onClick={this.handleSearch} />
      </form>
    )
  }
}

but this just gives me a lot of errors and it seems to don't like window.location. What's the best way to achieve this? I'm using react-router so I'm also happy if there is a better way with that

Share Improve this question asked Mar 16, 2017 at 8:44 ynterynter 2861 gold badge5 silver badges16 bronze badges
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4 Answers 4

Reset to default 2

You can use "browserHistory" from 'react-router' and then push new url to here like this:

browserHistory.push('/search/{this.state.query}/some-action')

You can use browserHistory.push or this.context.router.push. also ponentDidMount is a lifeCycle function and doesnt require binding and is executed just once. You also need a handleSearch function and a onChange event on input query change

class SearchInput extends Component {
  constructor() {
    super()

    this.state = {
      query: ''
    }
  }
  static contextTypes = {
       router: React.PropTypes.object
   }
  
  handleSearch = () => {
         this.context.router.push(`'/search/${this.state.query}/some-action'`);
  }
  queryChange = (evt) => {
    this.setState({query: evt.target.value})
  }

  render() {
    const { handleSearch, placeholder } = this.props
    return (
      <form>
        <input id="site-search" type="search" placeholder={placeholder} value={this.state.query} onChange={this.queryChange} />
        <input type="submit" value="Search" onClick={this.handleSearch} />
      </form>
    )
  }
}

This worked for me with react-hooks and react-router v5

import { useHistory } from 'react-router-dom';

 const history = useHistory();

const handleSubmit = (e) => {
    e.preventDefault();
    history.push(`/search/${input}`);
  };

see https://reactrouter./web/api/Hooks

function updateQueryStringParam(key, value, location) { const urlQueryString = location.search; const newParam = ${key}=${value}; let params = ?${newParam};

// If the "search" string exists, then build params from it if (urlQueryString) { const updateRegex = new RegExp(([?&])${key}[^&]*); const removeRegex = new RegExp(([?&])${key}=[^&;]+[&;]?);

if (typeof value === 'undefined' || value == null || value === '') {
  // Remove param if value is empty
  params = urlQueryString.replace(removeRegex, '$1');
  params = params.replace(/[&;]$/, '');
} else if (urlQueryString.match(updateRegex) !== null) {
  // If param exists already, update it
  params = urlQueryString.replace(updateRegex, `$1${newParam}`);
} else {
  // Otherwise, add it to end of query string
  params = `${urlQueryString}&${newParam}`;
}

}

// no parameter was set so we don't need the question mark return (params = params === '?' ? '' : params); }

const url = updateQueryStringParam('filter', inputValue, this.props.location);

this.props.history.push(url);

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