def insert(self):
"""插入当前对象"""
cls = self.__class__
if cls.__shard_field__:
db_conf, tb_shard = get_db_table(getattr(self, cls.__shard_field__))
else:
print cls.__insert_counter__
db_conf, tb_shard = get_db_table(cls.__insert_counter__)
cls.__insert_counter__ = cls.__insert_counter__ + 1
if cls.__insert_counter__ >= settings.DB_TABLES_LEN:
cls.__insert_counter__ = 0
cnn = Connection(*db_conf)
print 'db = %s ' % db_conf[1]
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
sql = "UPDATE `seq` SET `id`=LAST_INSERT_ID(`id`+%d) WHERE `tb`=%%s" % settings.DB_TABLES_LEN
print sql % tb_name
id = cnn.execute(sql, tb_name)
print 'lastid %d' % id
setattr(self, cls.__pk__, id)
attrs = self.__dict__
sql = "INSERT INTO `%s` (%s) VALUES (%s)" % (
tb_name,
', '.join(map(lambda x: '`%s`' % x, attrs)),
', '.join(['%s' for _ in attrs]),
)
print sql
parameters = [attrs[x] for x in attrs]
cnn.execute(sql, *parameters)
return getattr(self, cls.__pk__)
finally:
cnn.close()
def get_user_id(cls, field_name, field_value):
db_conf, tb_shard = models.get_db_table(field_value)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
sql = 'SELECT `user_id` FROM `%s` WHERE `field_name`=%%s AND `field_value`=%%s' % (tb_name,)
row = cnn.get(sql, field_name, field_value)
return row.user_id
finally:
cnn.close()
def get(cls, id):
db_conf, tb_shard = get_db_table(id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
sql = 'SELECT * FROM `%s` WHERE `%s`=%%s' % (tb_name, cls.__pk__,)
row = cnn.get(sql, id)
return cls(**row)
finally:
cnn.close()
def get_friends(cls, user_id):
"""返回好友列表"""
db_conf, tb_shard = models.get_db_table(user_id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
sql = 'SELECT `id`, `user_id`, `friend_id`, `created_at` FROM `%s` WHERE `user_id`=%%s' % (tb_name,)
iter = cnn.iter(sql, user_id)
return [cls(**row) for row in iter]
finally:
cnn.close()
def delete(self):
"""删除当前对象"""
cls = self.__class__
id = getattr(self, cls.__pk__)
db_conf, tb_shard = get_db_table(id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
sql = 'DELETE FROM `%s` WHERE `%s`=%%s' % (tb_name, cls.__pk__,)
return cnn.execute(sql, id)
finally:
cnn.close()
def get_user_id(cls, field_name, field_value):
db_conf, tb_shard = models.get_db_table(field_value)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (
cls.__tablename__,
tb_shard,
)
sql = 'SELECT `user_id` FROM `%s` WHERE `field_name`=%%s AND `field_value`=%%s' % (
tb_name, )
row = cnn.get(sql, field_name, field_value)
return row.user_id
finally:
cnn.close()
def get(cls, id):
db_conf, tb_shard = get_db_table(id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (
cls.__tablename__,
tb_shard,
)
sql = 'SELECT * FROM `%s` WHERE `%s`=%%s' % (
tb_name,
cls.__pk__,
)
row = cnn.get(sql, id)
return cls(**row)
finally:
cnn.close()
def delete(self):
"""删除当前对象"""
cls = self.__class__
id = getattr(self, cls.__pk__)
db_conf, tb_shard = get_db_table(id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (
cls.__tablename__,
tb_shard,
)
sql = 'DELETE FROM `%s` WHERE `%s`=%%s' % (
tb_name,
cls.__pk__,
)
return cnn.execute(sql, id)
finally:
cnn.close()
def update(self):
"""修改当前对象"""
cls = self.__class__
id = getattr(self, cls.__pk__)
db_conf, tb_shard = get_db_table(id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (cls.__tablename__, tb_shard,)
attrs = self.__dict__
sql = 'UPDATE `%s` SET %s WHERE `%s`=%%s' % (
tb_name,
', '.join(['%s=%%s' % x for x in attrs if x != cls.__pk__]),
cls.__pk__,
)
parameters = [attrs[x] for x in attrs if x != cls.__pk__]
parameters.append(getattr(self, cls.__pk__))
return cnn.execute(sql, *parameters)
finally:
cnn.close()
def update(self):
"""修改当前对象"""
cls = self.__class__
id = getattr(self, cls.__pk__)
db_conf, tb_shard = get_db_table(id)
cnn = Connection(*db_conf)
try:
tb_name = '%s_%d' % (
cls.__tablename__,
tb_shard,
)
attrs = self.__dict__
sql = 'UPDATE `%s` SET %s WHERE `%s`=%%s' % (
tb_name,
', '.join(['%s=%%s' % x for x in attrs if x != cls.__pk__]),
cls.__pk__,
)
parameters = [attrs[x] for x in attrs if x != cls.__pk__]
parameters.append(getattr(self, cls.__pk__))
return cnn.execute(sql, *parameters)
finally:
cnn.close()
def insert(self):
"""插入当前对象"""
cls = self.__class__
if cls.__shard_field__:
db_conf, tb_shard = get_db_table(getattr(self,
cls.__shard_field__))
else:
print cls.__insert_counter__
db_conf, tb_shard = get_db_table(cls.__insert_counter__)
cls.__insert_counter__ = cls.__insert_counter__ + 1
if cls.__insert_counter__ >= settings.DB_TABLES_LEN:
cls.__insert_counter__ = 0
cnn = Connection(*db_conf)
print 'db = %s ' % db_conf[1]
try:
tb_name = '%s_%d' % (
cls.__tablename__,
tb_shard,
)
sql = "UPDATE `seq` SET `id`=LAST_INSERT_ID(`id`+%d) WHERE `tb`=%%s" % settings.DB_TABLES_LEN
print sql % tb_name
id = cnn.execute(sql, tb_name)
print 'lastid %d' % id
setattr(self, cls.__pk__, id)
attrs = self.__dict__
sql = "INSERT INTO `%s` (%s) VALUES (%s)" % (
tb_name,
', '.join(map(lambda x: '`%s`' % x, attrs)),
', '.join(['%s' for _ in attrs]),
)
print sql
parameters = [attrs[x] for x in attrs]
cnn.execute(sql, *parameters)
return getattr(self, cls.__pk__)
finally:
cnn.close()
