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Folder/Space as Workflow Package

hyperation

Hi Everyone,

I am wondering if there is a way to attach folder/space (along with the contents within) into a workflow package.

I know that to attach a node to the package we do something like:

var workflowPackage = workflow.createPackage();
workflowPackage.addNode(node);&nbsp; // 'node' is the ScriptNode of the object (a document in this case).
‍‍‍‍

But, that doesn't seem to work for folders? or does it??

Thanks

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Comments

sebp

It does work. But the problem is that folders in workflow packages are not displayed by the dialogs. E.g. have a look at the getResources() method of org.alfresco.web.bean.workflow.ManageTaskDialog. You can see there is a developers note saying: "// NOTE: folders within workflow packages are ignored for now".
I also tried to add folders to workflow packages, but first you have to change all the backing beans of the workflow dialogs to make the folders be displayed in the Workflow Dialogs. Then you will realize that also the workflow dialog jsp pages have to be changed to display the folders correctly. Thats where I gave up.
Instead I allow the users to start a workflow on a folder. Then I made this folder the workflow package by overriding some code in StartWorkflowWizard.finishImpl()

hyperation

Thanks for the response sebp.

Can you provide some information on how your workaround was achieved?

Where is the StartWorkflowWizard.finishImpl()?

Thanks

sebp

Ok, first you have to make sure that workflows can be started on folders. Therefore create/open your web-client-config-custom.xml and add:

&nbsp;&nbsp;&nbsp; <config>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <actions>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <action-group id="space_browse_menu">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <action idref="start_workflow" />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </action-group>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </actions>
&nbsp;&nbsp;&nbsp; </config>
‍‍‍‍‍‍‍‍‍

into the <alfresco-config> element. If you restart Alfresco you should see the 'Start Advanced Workflow' option in the space browse menu.
Second, to make sure that the folder on which the user started the advanced workflow is taken as the workflow-package you have to change the class StartWorkflowWizard.java. To do this:

Download the Alfresco SDK for your Alfresco distribution.
In the SDK browse to src/web-client-src/java/org/alfresco/web/bean/workflow/StartWorkflowWizard.java
Replace the following lines:

// create a workflow package for the attached items and add them
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NodeRef workflowPackage = this.getWorkflowService().createPackage(null);
‍‍‍‍

with

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // create a workflow package for the attached items and add them
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; // hmedia: if the first package item is a folder, take this folder as the workflow package
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NodeRef nodeRef = new NodeRef(this.packageItemsToAdd.get(0));
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; QName type = getUnprotectedNodeService().getType(nodeRef);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NodeRef workflowPackage;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (!getDictionaryService().isSubClass(type, ContentModel.TYPE_FOLDER))
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; workflowPackage= this.getWorkflowService().createPackage(null);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; else {
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; workflowPackage= nodeRef;
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; this.packageItemsToAdd.remove(0);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
‍‍‍‍‍‍‍‍‍‍‍‍‍

Compile the StartWorkflowWizard class.
Now the compiled class has to replace the one in your Alfresco distribution. Open your alfresco.war or go to the exploded alfresco folder in Tomcat. Locate the WEB-INF/lib/alfresco-web-client-x.xx.jar. Override the StartWorkflowWizard class in the jar with your StartWorkflowWizard.class.It's so easy

After you did all this you can start an advanced workflow on a folder. In the Start Workflow Wizard you will not see the folder. This is because folders are not displayed in the workflow wizards. But as soon as you start the workflow and open the task you have assigned to a user this user will see the documents in the folder attached to the workflow.
Btw.: If you want to see the folder in the Start Workflow Wizard you would have to replace these lines of code in the StartWorkflowWizard init method:

&nbsp;&nbsp;&nbsp; if (this.getDictionaryService().isSubClass(type, ContentModel.TYPE_CONTENT) || 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.getDictionaryService().isSubClass(type, ApplicationModel.TYPE_FILELINK))
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.packageItemsToAdd.add(itemToWorkflow.toString());
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
‍‍‍‍‍‍‍

with these

&nbsp;&nbsp;&nbsp; // hmedia: added folder as content type
&nbsp;&nbsp;&nbsp; if (this.getDictionaryService().isSubClass(type, ContentModel.TYPE_CONTENT) || 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.getDictionaryService().isSubClass(type, ApplicationModel.TYPE_FILELINK) ||
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.getDictionaryService().isSubClass(type, ContentModel.TYPE_FOLDER))
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.packageItemsToAdd.add(itemToWorkflow.toString());
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }
‍‍‍‍‍‍‍‍‍

Good luck.

hyperation

Thank you for the thorough response, I will try it out.

I would have thought this would be something that is out of the box from Alfresco. 😕

Thanks

sebp

I had the same thought but I realized that a lot of stuff is missing when it comes to workflows and UI.
Btw.: I realized that if more than one workflow is started on the same folder then you will have error messages to delete the previous workflows. Only the latest workflow can be deleted. So you have to make sure that only one workflow can be started on the folder.

padmalaya

Hi Sebp,

Is there any other way out to start workflow on folders using the existing Javascript APIs, And how to deal with this repeated errors that crop in due to application of multiple workflows on a single folder??

thanks in advance
padmalaya

sebp

Hi,
I'm not sure about starting a workflow on a folder using the Javascript API. Could be possible. Don't know.
It turned out that the problem I had was not related to multiple workflows on a folder but to https://issues.alfresco.com/jira/browse/ALF-2764
and http://issues.alfresco.com/jira/browse/ETWOONE-306. I had two loops in my workflow and that causes Alfresco to crash if I wanted to cancel the workflow.

padmalaya

Hi Sebp,

Thanks for the "fast" reply, wasnt expecting though

.
However, does the above solution mentioned by you work(by changing the code in jave files)??
I tried the same , but at one point I gt errors in the build , at the second try it dint reflect in the UI itself.
Kinda stuck in it!!

Thanks ,

Padmalaya

sebp

The solution works. We use folders as workflow packages in daily work. What are the problems you face?

padmalaya

Hi,

I am using Alfresco 3.3g sdk, however the Build fails everytime I run the ant build.
The error is as follows:


BUILD FAILED
C:\Desktop\Alfresco-3.3g\root\projects.xml:566: The following error occurred while executing this line:
C:\Desktop\Alfresco-3.3g\root\macros.xml:59: Compile failed; see the compiler error output for details.

‍‍‍‍‍‍‍

Can you suggest what is going wrong(if in case i missed anything)??
I have followed Alfresco Wiki as well one of the posts in the forum for integrating alfresco code in eclipse, but hard luck following both

As a result I was trying to find if there is any other way out to implement the same!

Thanks in advance,

Padmalaya

sebp

If you only want to change some of the Alfresco classes you don't have to build the whole application. If you use the alfresco sdk within eclipse then you just add all the sdk's libraries to the classpath, unpack all the files in the sdk source directory and add all the sources to your project. Make your changes and eclipse will compile the changed classes. Then you can take the compiled classes and put them into the right .jar file within the alfresco.war.
This is a little bit messy but you don't have to build everything.

padmalaya

Hi sebp,

I am getting the following error after adding the code in StartWorkFlowWizard:

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
        at java.util.ArrayList.RangeCheck(ArrayList.java:547)
        at java.util.ArrayList.get(ArrayList.java:322)
        at org.alfresco.web.bean.workflow.StartWorkflowWizard.finishImpl(StartWorkflowWizard.java:198)
        at org.alfresco.web.bean.dialog.BaseDialogBean$1.execute(BaseDialogBean.java:118)
        at org.alfresco.web.bean.dialog.BaseDialogBean$1.execute(BaseDialogBean.java:114)
        at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:325)
        at org.alfresco.web.bean.dialog.BaseDialogBean.finish(BaseDialogBean.java:124)
        at org.alfresco.web.bean.wizard.WizardManager.finish(WizardManager.java:593)
‍‍‍‍‍‍‍‍‍‍‍

I have another concern, will the same once implemented show up contents in UI…as in no changes required in web-client-config??

padmalaya

Thanks Sebp..it worked…
It was basically cos of different version of alfresco that gt us stuck!!

sebp

Nice to hear. I was a little bit busy during the last days. I'm thinking about putting all the files needed for workflows on folders into a module and upload that module and the sources in Alfresco Forge.

padmalaya

Yeah..Nice Idea..that would help lots

sebp

I have created a forge project that contains all the necessary changes for running workflows on folders in an amp:
http://forge.alfresco.com/projects/wffolders/

chicco0386

Hi,
I've implement your solution but when I click the finish button for activate the workflow I've this error:

[img]http://img809.imageshack.us/img809/5613/screenbd.png[/img]

And if I click in the folder inside the workflow package I've a page that say:

The node's content is missing: 
   node: workspace://SpacesStore/7c622eec-fa96-4c48-8547-9c0a6267fb77 
   reader: null  
Please contact your system administrator.‍‍‍‍

PLEASE, CAN YOU HELP ME PLEASE?
THANK YOU

massanen

hello everybody (if you're not in holidays like me),

sebp's solution works fine but just with alfresco explorer. Would you know which java files I have to modify to use a folder/space as workflow package with Alfresco Share????

thanks a lot!

vbr

Hello,

When I start two workflows on the same space I got the followings messages :

Please correct the errors below then click Finish.
A system error happened during the operation: 10260023 This node is already being used as a workflow package! NodeRef: workspace://SpacesStore/7ea14a9c-f1d1-465d-82ef-7a98ff3f3feb‍‍

Someone can help me? Thank you!