实现搜索功能
- 准备视图函数search()
- 修改base.html 中搜索输入框所在的
- <form action="{{ url_for('search') }}" method="get">
- <input name="q" type="text" placeholder="请输入关键字">
- 完成视图函数search()
- 获取搜索关键字
q = request.args.get('q’) - 条件查询
qu = Question.query.filter(Question.title.contains(q)).order_by('-creat_time’) - 加载查询结果:
return render_template('index.html', question=qu)
- 获取搜索关键字
- 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
)
)
)
<form action="{{ url_for('search') }}" method="get" class="navbar-form navbar-left" role="search"> <div class="form-group"> <input name="q" type="text" class="form-control" placeholder="请输入关键字"/> </div><button type="submit" class="btn btn-default">搜索</button> {% endif %} </form>
@app.route('/search/') def search(): qu = request.args.get('q') ques = Question.query.filter( or_ (Question.title.contains(qu), Question.detail.contains(qu), # Question.author_id.contains(qu) ) ).order_by('-create_time') return render_template('index.html',questions = ques) 复制代码 from sqlalchemy import or_,and_