old_contents: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  import time, uuid
  
  from orm import Model, StringField, BooleanField, FloatField, TextField
  
  def next_id():
  	return '%015d%s000' % (int(time.time() * 1000), uuid.uuid4().hex)
  
  class User(Model):
  	__table__ = 'users'
  
  	id = StringField(primary_key=True, default=next_id, ddl='varchar(50)')
  	email = StringField(ddl='varchar(50)')
  	password = StringField(ddl='varchar(50)')
  	admin = BooleanField()
  	name = StringField(ddl='varchar(50)')
  	image = StringField(ddl='varchar(500)')
  	created_at = FloatField(default=time.time)
  
  class Blog(Model):
  	__table__ = 'blogs'
  
  	id = StringField(primary_key=True, default=next_id, ddl='varchar(50)')
  	user_id = StringField(ddl='varchar(50)')
  	user_name = StringField(ddl='varchar(50)')
  	user_image = StringField(ddl='varchar(500)')
  	name = StringField(ddl='varchar(50)')
  	summary = StringField(ddl='varchar(200)')
  	content = TextField()
  	created_at = FloatField(default=time.time)
  
  class Comment(Model):
  	__table__ = 'comments'
  
  	id = StringField(primary_key=True, default=next_id, ddl='varchar(50)')
  	blog_id = StringField(ddl='varchar(50)')
  	user_id = StringField(ddl='varchar(50)')
  	user_name = StringField(ddl='varchar(50)')
  	user_image = StringField(ddl='varchar(500)')
  	content = TextField()
  	created_at = FloatField(default=time.time)
  
new_contents: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  
  import time, uuid
  
  from orm import Model, StringField, BooleanField, FloatField, TextField, IntegerField
  
  def next_id():
  	return '%015d%s000' % (int(time.time() * 1000), uuid.uuid4().hex)
  
  class User(Model):
  	__table__ = 'users'
  
  	id = StringField(primary_key=True, default=next_id, ddl='varchar(50)')
  	email = StringField(ddl='varchar(50)')
  	password = StringField(ddl='varchar(50)')
  	admin = BooleanField()
  	name = StringField(ddl='varchar(50)')
  	image = StringField(ddl='varchar(500)')
  	created_at = FloatField(default=time.time)
  
  class Blog(Model):
  	__table__ = 'blogs'
  
  	id = StringField(primary_key=True, default=next_id, ddl='varchar(50)')
  	user_id = StringField(ddl='varchar(50)')
  	user_name = StringField(ddl='varchar(50)')
  	user_image = StringField(ddl='varchar(500)')
  	name = StringField(ddl='varchar(50)')
  	summary = StringField(ddl='varchar(200)')
  	content = TextField()
  	created_at = FloatField(default=time.time)
  	viewed_count = IntegerField(ddl='int(11) unsigned')
  
  class Comment(Model):
  	__table__ = 'comments'
  
  	id = StringField(primary_key=True, default=next_id, ddl='varchar(50)')
  	blog_id = StringField(ddl='varchar(50)')
  	user_id = StringField(ddl='varchar(50)')
  	user_name = StringField(ddl='varchar(50)')
  	user_image = StringField(ddl='varchar(500)')
  	content = TextField()
  	created_at = FloatField(default=time.time)
  
subject: 添加了博客访问量字段viewed_count,以便统计博客的访问量