1.主PY文件写视图函数，带id参数。
@app.route('/detail/<question_id>')
def detail(question_id):
quest =
return render_template('detail.html', ques = quest)
- 首页标题的标签做带参数的链接。
{{ url_for('detail',question_id = foo.id) }} - 在详情页将数据的显示在恰当的位置。
{{ ques.title}}
{{ ques.id }}{{ ques.creat_time }}{{ ques.author.username }}
{{ ques.detail }} -
建立评论的对象关系映射：
class Comment(db.Model):
__tablename__='comment' -
尝试实现发布评论。
{% extends 'index.html' %} {% block title %}问答详情{% endblock %} {% block main %} <body style="url(../image/picture.jpg) no-repeat" > <div class="container"> <div class="box"> <h3 style="font-family:宋体;text-align: left;font-size: 40px">详情页</h3> </div> <div> <h2>{{ ques.question }}<br><small>{{ ques.author.username }} <span class="badge">{{ ques.creat_time }}</span></small></h2></div> 问题详情：<p class="lead">{{ ques.questionDetail }}</p> <p class="location">评论</p> <hr> <form action="{{ url_for('question') }}" method="post"> <div> <textarea class="form-control" id="new_comment" rows="6" placeholder="write your comment"style="height:200px;800px" ></textarea><br></div> <button type="submit" class="fabu"style="100px">发布</button> </form> <ul class="list-group" style="margin: 10px"></ul> </div> </body> {% endblock %}
class Comment(db.Model): __tablename__ = 'comment' id = db.Column(db.Integer, primary_key=True, autoincrement=True) author_id = db.Column(db.Integer, db.ForeignKey('user.id')) question_id = db.Column(db.Integer, db.ForeignKey('question.id')) time = db.Column(db.DateTime, default=datetime.now()) detail = db.Column(db.Text, nullable=False) question = db.relationship('Question', backref=db.backref('comments')) author = db.relationship('User', backref=db.backref('comments'))
