@app.route('/user/<nickname>')
@login_required
def user(nickname):
  user = User.query.filter_by(nickname = nickname).first()
  if user == None:
    flash('不存在用户：' + nickname + '！')
    return redirect(url_for('index'))
  posts = [
    { 'author': user, 'body': 'Test post #1' },
    { 'author': user, 'body': 'Test post #2' }
  ]
  return render_template('user.html',
    user = user,
    posts = posts)

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<h1>用户昵称: {{user.nickname}}!</h1>
<hr>
{% for post in posts %}
<p>
 {{post.author.nickname}} 发布了: <b>{{post.body}}</b>
</p>
{% endfor %}
{% endblock %}

<div>Microblog:
    <a href="{{ url_for('index') }}">Home</a>
    {% if g.user.is_authenticated() %}
    | <a href="{{ url_for('user', nickname = g.user.nickname) }}">你的个人资料</a>
    | <a href="{{ url_for('logout') }}">退出登陆</a>
    {% endif %}
  </div>

from hashlib import md5
# ...
class User(db.Model):
  # ...
  def avatar(self, size):
    return 'http://www.gravatar.com/avatar/' + md5(self.email).hexdigest() +
    '?d=mm&s=' + str(size)

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<table>
  <tr valign="top">
    <td><img src="{{user.avatar(128)}}"></td>
    <td><h1>用户昵称: {{user.nickname}}</h1></td>
  </tr>
</table>
<hr>
{% for post in posts %}
<p>
 {{post.author.nickname}} 发布了: <b>{{post.body}}</b>
</p>
{% endfor %}
{% endblock %}

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<table>
  <tr valign="top">
    <td><img src="{{user.avatar(128)}}"></td>
    <td><h1>用户昵称: {{user.nickname}}</h1></td>
  </tr>
</table>
<hr>
{% for post in posts %}
<table>
  <tr valign="top">
    <td><img src="{{post.author.avatar(50)}}"></td><td><i>{{post.author.nickname}}
   发布了:</i><br>{{post.body}}</td>
  </tr>
</table>
{% endfor %}
{% endblock %}

<table>
  <tr valign="top">
    <td><img src="{{post.author.avatar(50)}}"></td><td><i>{{post.author.nickname}}
  发布了:</i><br>{{post.body}}</td>
  </tr>
</table>

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<table>
  <tr valign="top">
    <td><img src="{{user.avatar(128)}}"></td>
    <td><h1>用户昵称: {{user.nickname}}</h1></td>
  </tr>
</table>
<hr>
{% for post in posts %}
  {% include 'post.html' %}
{% endfor %}
{% endblock %}

 
class User(db.Model):
  id = db.Column(db.Integer, primary_key = True)
  nickname = db.Column(db.String(64), unique = True)
  email = db.Column(db.String(120), index = True, unique = True)
  role = db.Column(db.SmallInteger, default = ROLE_USER)
  posts = db.relationship('Post', backref = 'author', lazy = 'dynamic')
  about_me = db.Column(db.String(140))
  last_seen = db.Column(db.DateTime)

./db_migrate.py

New migration saved as db_repository/versions/003_migration.py
Current database version: 3

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<table>
  <tr valign="top">
    <td><img src="{{user.avatar(128)}}"></td>
    <td>
      <h1>用户昵称: {{user.nickname}}</h1>
      {% if user.about_me %}<p>{{user.about_me}}</p>{% endif %}
      {% if user.last_seen %}<p><i>Last seen on: {{user.last_seen}}</i></p>{% endif %}
    </td>
  </tr>
</table>
<hr>
{% for post in posts %}
  {% include 'post.html' %}
{% endfor %}
{% endblock %}

from datetime import datetime
# ...
@app.before_request
def before_request():
  g.user = current_user
  if g.user.is_authenticated():
    g.user.last_seen = datetime.utcnow()
    db.session.add(g.user)
    db.session.commit()

from flask.ext.wtf import Form, TextField, BooleanField, TextAreaField
from flask.ext.wtf import Required, Length
 
class EditForm(Form):
  nickname = TextField('nickname', validators = [Required()])
  about_me = TextAreaField('about_me', validators = [Length(min = 0, max = 140)])

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<h1>Edit Your Profile</h1>
<form action="" method="post" name="edit">
  {{form.hidden_tag()}}
  <table>
    <tr>
      <td>你的昵称:</td>
      <td>{{form.nickname(size = 24)}}</td>
    </tr>
    <tr>
      <td>关于自己:</td>
      <td>{{form.about_me(cols = 32, rows = 4)}}</td>
    </tr>
    <tr>
      <td></td>
      <td><input type="submit" value="保存"></td>
    </tr>
  </table>
</form>
{% endblock %}

from forms import LoginForm, EditForm
 
@app.route('/edit', methods = ['GET', 'POST'])
@login_required
def edit():
  form = EditForm()
  if form.validate_on_submit():
    g.user.nickname = form.nickname.data
    g.user.about_me = form.about_me.data
    db.session.add(g.user)
    db.session.commit()
    flash('Your changes have been saved.')
    return redirect(url_for('edit'))
  else:
    form.nickname.data = g.user.nickname
    form.about_me.data = g.user.about_me
  return render_template('edit.html',
    form = form)

<!-- extend base layout -->
{% extends "base.html" %}
 
{% block content %}
<table>
  <tr valign="top">
    <td><img src="{{user.avatar(128)}}"></td>
    <td>
      <h1>用户昵称: {{user.nickname}}</h1>
      {% if user.about_me %}<p>{{user.about_me}}</p>{% endif %}
      {% if user.last_seen %}<p><i>最后登陆时间: {{user.last_seen}}</i></p>{% endif %}
      {% if user.id == g.user.id %}<p><a href="{{url_for('edit')}}">修改资料</a></p>{% endif %}
    </td>
  </tr>
</table>
<hr>
{% for post in posts %}
  {% include 'post.html' %}
{% endfor %}
{% endblock %}