def viewFileWithVersion(version, file):
latest_file = FileDao.getFileById(file.id)
#print(latest_file)
fileList = HistoryDao.getHistory(latest_file.id, version)
fileList.sort(key=attrgetter("version"), reverse=True)
dmp = dmp_module.diff_match_patch()
latest_file_json = json.dumps(latest_file.__dict__)
for file in fileList:
pathces = dmp.patch_fromText(file.patch_content)
latest_file_json, _ = dmp.patch_apply(pathces, latest_file_json)
#print("version" + str(file.version-1)+"file content: "+str(latest_file_json))
print(latest_file_json)
file = MdFile("temp")
file.__dict__ = json.loads(latest_file_json)
file.version = version
return file, latest_file
def getHistoryFileHandler(**kwargs):
user = kwargs['userInfo']
fid = int(request.form['id'])
version = int(request.form['version'])
file = MdFile(id=fid)
historyFile, currentFile = History.viewFileWithVersion(version=version,
file=file)
return {
'currentFile': currentFile.__dict__,
'historyFile': historyFile.__dict__
}
def addFileHandler(**kwargs):
user = kwargs['userInfo']
file = MdFile(name=request.form['name'],
ownerId=user.userId,
date=request.form['date'],
permission=request.form['permission'],
status="OK",
content=request.form['content'],
version=1)
FileDao.addFile(file)
return None
def getFileById(fid):
fid = int(fid)
dbDriver = getDBDriver()
try:
res = dbDriver.getResult(
"select id,name,date,ownerId,permission,status,content,version from FILE where id=?",
[fid])
res = res[0]
file = MdFile(id=res[0],
name=res[1],
date=res[2],
ownerId=res[3],
permission=res[4],
status=res[5],
content=res[6],
version=res[7])
dbDriver.closeDB()
return file
except Exception as e:
raise e
def getFileListByUid(uid):
uid = int(uid)
dbDriver = getDBDriver()
try:
resList = dbDriver.getResult(
"select id,name,date,ownerId,permission,status,version from FILE where ownerId=?",
[uid])
resultFile = list()
for res in resList:
file = MdFile(id=res[0],
name=res[1],
date=res[2],
ownerId=res[3],
permission=res[4],
status=res[5],
version=res[6])
resultFile.append(file)
dbDriver.closeDB()
return resultFile
except Exception as e:
raise e
def restoreFileHandler(**kwargs):
user = kwargs['userInfo']
fid = int(request.form['id'])
version = int(request.form['version'])
History.restoreFile(version, MdFile(id=fid))
return None
ownerId=res[3],
permission=res[4],
status=res[5],
content=res[6],
version=res[7])
dbDriver.closeDB()
return file
except Exception as e:
raise e
if __name__ == '__main__':
file = MdFile(name='hello1',
date='1231233',
ownerId=1,
permission='private',
status='OK',
content='abcdefghijksdfsdflmnopqrstuvwxyz')
addFile(file)
fileList = getFileListByUid(1)
for file in fileList:
print(file)
print("")
file = getFileById(1)
print(file)
file.content += "gjwgjwgjw"
updateFile(file)
file = getFileById(1)
print(file)
file.version = version
return file, latest_file
'''
恢复到文件到指定版本
参数：version：指定的版本
file：文件对象，只要有id这一个有效参数即可
返回值：
file：要求版本的文件
注：回复文件也会导致文件的版本+1
'''
def restoreFile(version, file):
target_file, old_file = viewFileWithVersion(version, file)
target_file.version = old_file.version + 1
saveFileWithPatch(target_file)
if __name__ == '__main__':
file = MdFile(name="1.md", content="1", version=0, id=1)
FileDao.addFile(file)
for i in range(10):
file.content += str(i)
file.version += 1
print("version: " + str(i) + " content" + str(file))
saveFileWithPatch(file)
restoreFile(1, file)
print("fin")