Archive central models with Dynamo

自动备份中心模型

多人协作的Revit项目都是基于工作共享(Worksharing)的模式,运用中心模型(Central model)来进行协作工作。

一个正确的中心文件的备份程序应该是这样的:

  1. 以从中心分离的方式打开一个中心文件 (open one central file as Detached)
  2. 将打开的文件另存为一个中心文件 (save the file as a detached central file)
  3. 放弃所有工作集并关闭 (relinquish all worksets and close)

在大型多人协作的Revit项目中,一般会将项目分割成多个中心文件,这给周期性的备份工作带来了一定的时间成本。当然,我们可以粗暴地拷贝粘贴中心文件到某个备份文件夹。但风险是,这个备份文件并不是与中心文件分离的(detached),所以有可能一段时间后有人用备份文件将中心文件错误地同步了(我也不幸经历过)。所以,我做了一个Dynamo脚本来自动化这项工作。

同样,这里我使用到了 DATA|SAHAPES 的UI Node:

使用者首先选择中心文件所在的文件夹以及项目名称,之后脚本会在这个文件夹下自动新建一个备份文件夹(使用项目名称),然后遵循刚提到的备份程序将备份文件保存在此。最后生成一个结果报告。

Dynamo 脚本如下:

下面我解释一下红色区域的Python脚本的部分:

# Coded by kj.luo
# kj-luo.com
# 2021.01.05

########## IMPORT ##########
import clr
import sys
sys.path.append('C:\Program Files (x86)\IronPython 2.7\Lib')
clr.AddReference("RevitAPI")
import Autodesk
from Autodesk.Revit.DB import *
clr.AddReference("RevitServices")
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager
from datetime import datetime
import System
import os
doc = DocumentManager.Instance.CurrentDBDocument
uiapp = DocumentManager.Instance.CurrentUIApplication
app = uiapp.Application
# date for the new folder name
# 取得给文件夹命名的日期
now = datetime.now()
namedate = now.strftime("%y%m%d")

##########   INPUT   ##########
projektname = IN[0]
directory = IN[1]
filepaths = [FilePath(x) for x in IN[2]]

##########   OUTPUT   ##########
out = []

##########   SCRIPT   ##########

# create open options. It must be detached
# 新打开文件必须的 open option
openoptions = OpenOptions()
openoptions.DetachFromCentralOption = DetachFromCentralOption.DetachAndPreserveWorksets
# Worksets from the file should be all closed to speed up the loading
# 为了节省载入时间,所有的工作集在打开过程中应该是关闭的
openConfig = WorksetConfiguration(WorksetConfigurationOption.CloseAllWorksets)
openoptions.SetOpenWorksetsConfiguration(openConfig)
# Create two save options, for two types of revit file: worksharing and not worksharing  
# 两种 save options,分别给中心文件和普通文件
saveoptions_sharing = SaveAsOptions()
saveoptions_notsharing = SaveAsOptions()
saveoptions_sharing.OverwriteExistingFile = False
saveoptions_notsharing.OverwriteExistingFile = False
# As well two worksharing save options for each type
wsOptions_sharing = WorksharingSaveAsOptions()
wsOptions_notsharing = WorksharingSaveAsOptions()
wsOptions_sharing.SaveAsCentral = True
wsOptions_notsharing.SaveAsCentral  = False

saveoptions_sharing.SetWorksharingOptions(wsOptions_sharing)
saveoptions_notsharing.SetWorksharingOptions(wsOptions_notsharing)
# Relinquish option to relinquish the file
# 放弃工作集的设定
relinoptions = RelinquishOptions(True)
transoptions = TransactWithCentralOptions()
# Create Archiv-folder and Backup+date-folder
# 新建备份文件夹
archivdirectory = directory + "\\Archiv"
if not os.path.exists(archivdirectory):
    os.makedirs(archivdirectory)
    
backupfolder = archivdirectory+ "\\" + projektname + "_" + namedate +"_AutoBACKUP"
if not os.path.exists(backupfolder):
    os.makedirs(backupfolder)
    
TransactionManager.Instance.EnsureInTransaction(doc)
# Each file path stands for a revit file.
# 每个路径代表了一个revit文件
for filepath in filepaths:

	filedocu = app.OpenDocumentFile(filepath, openoptions)
	filetitle = filedocu.Title
	savepath = FilePath(backupfolder +"\\"+ filetitle + "_autobackup_" + ".rvt")
	
	try:
		# If it is a worksharing file
		if filedocu.IsWorkshared: 
			filedocu.SaveAs(savepath,saveoptions_sharing)
			out.append(filetitle + ": saved")
			WorksharingUtils.RelinquishOwnership(filedocu,relinoptions,transoptions)
		# If it is not a worksharing file
		else:
			filedocu.SaveAs(savepath,saveoptions_notsharing)
			out.append(filetitle + ": saved")

	except: out.append(filetitle + ": not saved")	
	# at last, the file must be closed to free up space
	# 最后必须得关闭文件,以释放硬盘空间
	filedocu.Close(False)
	
TransactionManager.Instance.TransactionTaskDone()

OUT = out

脚本运行完成后:

备份结果
最后自动生成的备份报告


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