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实现搜索功能

时间:2017-12-20 17:51:21      阅读:106      评论:0      收藏:0      [点我收藏+]

标签:_id   ==   port   time   button   条件查询   eth   control   data-   

  1. 准备视图函数search()

  2. 修改base.html 中搜索输入框所在的
    1. <form action="{{ url_for(‘search‘) }}" method="get">
    2.    <input name="q" type="text" placeholder="请输入关键字">

  3. 完成视图函数search()
    1. 获取搜索关键字
      q = request.args.get(‘q’)
    2. 条件查询
      qu = Question.query.filter(Question.title.contains(q)).order_by(‘-creat_time’)
    3. 加载查询结果:
      return render_template(‘index.html‘, question=qu)

  4. 组合条件查询
    from sqlalchemy import or_, and_ 

示例:

Lobby.query.filter(
    or_(
        and_(
            Lobby.id == Team.lobby_id,
            LobbyPlayer.team_id == Team.id,
            LobbyPlayer.player_id == player.steamid
        ),
         and_(
            Lobby.id == spectator_table.c.lobby_id,
            spectator_table.c.player_id == player.steamid
        )
    )
)

from sqlalchemy import or_,and_

 

@app.route(‘/search/‘)
def search():
    qu = request.args.get(‘q‘)
    ques = Question.query.filter(
        or_(
             Question.title.contains(qu),
             Question.detail.contains(qu)
         )
    ).order_by(‘creat_time‘)
    return render_template(‘index.html‘,questions = ques)
 <form action="{{ url_for(‘search‘) }}" method="get" style="float: right">
    <input name="q" type="text" class="form-control" style="width: 250px"  placeholder="请输入关键字" >
    <button type="submit" style="width: 80px">搜索</button>
     </form>

 

实现搜索功能

标签:_id   ==   port   time   button   条件查询   eth   control   data-   

原文地址:http://www.cnblogs.com/0058kyle/p/8074774.html

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