实现搜索功能
1、准备视图函数search()
@app.route('/search/') def search(): pass
2、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">
<form action="{{ url_for('search') }}" method="get" class="navbar-form navbar-left" role="search"> <div class="form-group"> <input type="text" name="q" placeholder="请输入关键字" class="search-input" class="form-control"/> </div> <button type="submit" class="btn btn-default">查找</button> </form>
3、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)
@app.route('/search/') def search(): qu = request.args.get('q') ques = Question.query.filter(Question.title.contains(qu).order_by('-creat_time') return render_template('admin.html', question=ques)
4、组合条件查询
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('admin.html', question=ques)