def test_write_file_to_grid(self):
in_file = 'test_model.py'
out_file = in_file + '.temp'
model = Model('LightDB')
result = model.write_file_to_grid(in_file)
result = model.read_file_from_grid(result['fileId'], out_file)
self.assertEqual(in_file, result['name'])
self.assertTrue(os.path.isfile(out_file))
os.remove(out_file)
def test_write_file_to_grid(self):
in_file = 'test_model.py'
out_file = in_file + '.temp'
model = Model('LightDB')
result = model.write_file_to_grid(in_file)
result = model.read_file_from_grid(result['fileId'], out_file)
self.assertEqual(in_file, result['name'])
self.assertTrue(os.path.isfile(out_file))
os.remove(out_file)
class Controller(object):
"""
1. 封装model的调用, 接收的参数为handler对象
2. 进行缺省值的设定, 如 updateBy createAt valid 等
3. 格式化输出的JSON结果, 获取List时会付上件数totalItems等信息
4. 统一封装关于数据库操作的错误内容
"""
def __init__(self, handler, table=None):
define = {}
if table:
define = getattr(Structure.instance(), table)['items']
self.uid = handler.uid
self.model = Model(domain=handler.domain,
code=handler.code,
table=table,
define=define)
self.condition = handler.params.condition or {}
self.data = handler.params.data or {}
self.id = handler.params.id
self.select = handler.params.select or handler.params.field
self.sort = handler.params.sort
self.files = handler.params.files
self.skip = handler.params.skip
self.limit = handler.params.limit or 0
if self.skip is None:
self.skip = 0
def get(self):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
result = self.model.get(condition=self.id or self.condition,
select=self.select)
return result, None
def list(self):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
count = self.model.total(condition=self.condition)
result = self.model.get_by(condition=self.condition,
select=self.select,
sort=self.sort,
skip=self.skip,
limit=self.limit)
return {'totalItems': count, 'items': result}, None
def add(self):
if not isinstance(self.data, list):
self.data = [self.data]
for data in self.data:
regular = {
'createAt': datetime.now(),
'createBy': self.uid,
'updateAt': datetime.now(),
'updateBy': self.uid,
'valid': CONST.VALID
}
data.update(regular)
result = self.model.add(data=self.data)
return {'_id': result}, None
def total(self):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
count = self.model.total(condition=self.condition)
return count, None
def count(self):
return self.total()
def update(self, upsert=False):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
regular = {'updateAt': datetime.now(), 'updateBy': self.uid}
self.data.update(regular)
# If the update operation does not result in an insert, $setOnInsert does nothing.
data = {
'$set': self.data,
'$setOnInsert': {
'createAt': datetime.now(),
'createBy': self.uid,
'valid': CONST.VALID
}
}
result = self.model.update_by(condition=self.id or self.condition,
data=data,
upsert=upsert)
return {'_id': result}, None
def increment(self, upsert=True):
regular = {'updateAt': datetime.now(), 'updateBy': self.uid}
self.data.update(regular)
data = {'$inc': self.data}
result = self.model.increment(condition=self.id or self.condition,
update=data,
upsert=upsert)
return result, None
def remove(self):
regular = {
'updateAt': datetime.now(),
'updateBy': self.uid,
'valid': CONST.INVALID
}
result = self.model.update_by(condition=self.id or self.condition,
data={'$set': regular})
return {'_id': result}, None
def delete(self):
result = self.model.remove_by(condition=self.id or self.condition)
return result, None
def distinct(self):
result = self.model.distinct(key=self.select, filter=self.condition)
return result, None
def create_user(self):
raise NotImplementedError
def add_user(self):
raise NotImplementedError
def drop_user(self):
raise NotImplementedError
def change_password(self):
raise NotImplementedError
def drop(self):
raise NotImplementedError
def aggregate(self):
raise NotImplementedError
def increment(self):
raise NotImplementedError
def write_file_to_grid(self):
data = []
for file in self.files:
data.append(self.model.write_file_to_grid(file))
return {'totalItems': len(self.files), 'items': data}, None
def write_buffer_to_grid(self):
raise NotImplementedError
def write_stream_to_grid(self):
data = []
for file in self.files:
content_type = file.content_type
name = file.filename
length = file.stream.getbuffer().nbytes
data.append(
self.model.write_stream_to_grid(name, file.stream,
content_type, length))
return {'totalItems': len(data), 'items': data}, None
def read_file_from_grid(self):
folder = self.data['folder']
name = self.data['name']
if folder is None:
folder = Config.instance().app.tmp
if name is None:
name = light.helper.random_guid(8)
return self.model.read_file_from_grid(self.id,
os.path.join(folder, name))
def read_buffer_from_grid(self):
raise NotImplementedError
def read_stream_from_grid(self):
return self.model.read_stream_from_grid(self.id)
class Controller(object):
"""
1. 封装model的调用, 接收的参数为handler对象
2. 进行缺省值的设定, 如 updateBy createAt valid 等
3. 格式化输出的JSON结果, 获取List时会付上件数totalItems等信息
4. 统一封装关于数据库操作的错误内容
"""
def __init__(self, handler, table=None):
define = {}
if table:
define = getattr(Structure.instance(), table)
self.model = Model(domain=handler.domain,
code=handler.code or CONST.DEFAULT_TENANT,
table=table,
option={'define': define})
self.uid = handler.uid
self.condition = handler.params.condition or {}
self.data = handler.params.data or {}
self.id = handler.params.id
self.select = handler.params.select or handler.params.field
self.sort = handler.params.sort
self.files = handler.params.files
self.skip = handler.params.skip
self.limit = handler.params.limit or 0
if self.skip is None:
self.skip = 0
def get(self):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
result = self.model.get(condition=self.id or self.condition, select=self.select)
return result, None
def list(self):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
count = self.model.total(condition=self.condition)
result = self.model.get_by(
condition=self.condition, select=self.select, sort=self.sort, skip=self.skip, limit=self.limit
)
return {'totalItems': count, 'items': result}, None
def add(self):
if not isinstance(self.data, list):
self.data = [self.data]
for data in self.data:
regular = {
'createAt': datetime.now(),
'createBy': self.uid,
'updateAt': datetime.now(),
'updateBy': self.uid,
'valid': CONST.VALID
}
data.update(regular)
result = self.model.add(data=self.data)
return {'_id': result}, None
def total(self):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
count = self.model.total(condition=self.condition)
return count, None
def count(self):
return self.total()
def update(self, upsert=False):
if 'valid' not in self.condition:
self.condition['valid'] = CONST.VALID
regular = {'updateAt': datetime.now(), 'updateBy': self.uid}
self.data.update(regular)
# If the update operation does not result in an insert, $setOnInsert does nothing.
data = {
'$set': self.data,
'$setOnInsert': {'createAt': datetime.now(), 'createBy': self.uid, 'valid': CONST.VALID}
}
result = self.model.update_by(condition=self.id or self.condition, data=data, upsert=upsert)
return {'_id': result}, None
def increment(self, upsert=True):
regular = {'updateAt': datetime.now(), 'updateBy': self.uid}
self.data.update(regular)
data = {'$inc': self.data}
result = self.model.increment(condition=self.id or self.condition, update=data, upsert=upsert)
return result, None
def remove(self):
regular = {'updateAt': datetime.now(), 'updateBy': self.uid, 'valid': CONST.INVALID}
result = self.model.update_by(condition=self.id or self.condition, data={'$set': regular})
return {'_id': result}, None
def delete(self):
result = self.model.remove_by(condition=self.id or self.condition)
return result, None
def distinct(self):
result = self.model.distinct(key=self.select, filter=self.condition)
return result, None
def create_user(self):
raise NotImplementedError
def add_user(self):
raise NotImplementedError
def drop_user(self):
raise NotImplementedError
def change_password(self):
raise NotImplementedError
def drop(self):
raise NotImplementedError
def aggregate(self):
raise NotImplementedError
def increment(self):
raise NotImplementedError
def write_file_to_grid(self):
data = []
for file in self.files:
data.append(self.model.write_file_to_grid(file))
return {'totalItems': len(self.files), 'items': data}, None
def write_buffer_to_grid(self):
raise NotImplementedError
def write_stream_to_grid(self):
data = []
for file in self.files:
content_type = file.content_type
name = file.filename
length = file.stream.getbuffer().nbytes
data.append(self.model.write_stream_to_grid(name, file.stream, content_type, length))
return {'totalItems': len(data), 'items': data}, None
def read_file_from_grid(self):
folder = self.data['folder']
name = self.data['name']
if folder is None:
folder = Config.instance().app.tmp
if name is None:
name = light.helper.random_guid(8)
return self.model.read_file_from_grid(self.id, os.path.join(folder, name))
def read_buffer_from_grid(self):
raise NotImplementedError
def read_stream_from_grid(self):
return self.model.read_stream_from_grid(self.id)