openflow-dev

Re: [Openflow-dev] Delete application

[Mikel L. <mla...@co...>]

Peter Valckx wrote:
> Hi everybody,
> 
> We use Openflow as a product in our own product. To delete an
> application, we use the function openflow.deleteApplication. The
> function doesn't work 100%. When we create an application with name
> 'test and we want to delete it, nothing happends... When we use 'x'
> everything works fine.. What's the problem? That we add an activity,
> using name and that the removal goes with the ID? Help...

Hi Peter:

If we look at addApplication method in openflow.py, we'll find that the 
application name is used as its 'id' (if we can say so) and add to the 
dictionary at ._applications to store it.

Looking at deleteApplication, we can see that the parameter indicating 
the application to delete must be a list because deleteApplication 
iterates over the parameter to delete an existing application:

def deleteApplication(self, app_ids=None, REQUEST=None):
     """ removes an application """
     for name in app_ids:
         if name in self._applications.keys():
            del(self._applications[name])

If you use 'x' as application name, when you are going to delete it, the 
delete method makes: for name in 'x':  .... and name takes the value 'x' 
and the application is deleted succesfully.

Nevertheless, when your application's name is 'test', deleteApplication 
executes: for name in 'test' and it tries to delete application 't', 
then application 'e', later application 's' and at last application 't'.

That happens because python strings can be used as lists of characters.

So, try calling deleteApplication, with the application id to delete in 
a list, for example: deleteApplication(['test'])

Regards,

-- 
Mikel Larreategi
mla...@co...

CodeSyntax
Azitaingo Industrialdea 3 K
E-20600 Eibar
Tel: (+34) 943 82 17 80

[Openflow-dev] Delete application

[Peter V. <pe...@oe...>]

Hi everybody,

We use Openflow as a product in our own product. To delete an
application, we use the function openflow.deleteApplication. The
function doesn't work 100%. When we create an application with name
'test and we want to delete it, nothing happends... When we use 'x'
everything works fine.. What's the problem? That we add an activity,
using name and that the removal goes with the ID? Help...

Thanx,

Peter

Re: [Openflow-dev] Active workflow

[Yuri <yu...@al...>]

Jeroen van Doorn ha scritto:

> Hello all,
>
> Studying openflow, I was wondering if there=92s a possibility to start =
a=20
> transition from one state to the other depending on time.
>
> Or maybe something like a condition which I can set, which polls=20
> itself once in a while. I believe it=92s called active workflow where n=
ow
>
> Actual user interaction is required to get things done. Anyone an idea?
>
A cron script which calls an url? :)

[Openflow-dev] Active workflow

[Jeroen v. D. <Jer...@so...>]

Hello all,
 
Studying openflow, I was wondering if there's a possibility to start a
transition from one state to the other depending on time.
Or maybe something like a condition which I can set, which polls itself
once in a while. I believe it's called active workflow where now
Actual user interaction is required to get things done. Anyone an idea?
 
Kind regards,
Jeroen van Doorn
Solide

[Openflow-dev] (no subject)

[cecilia c. c <cc...@ho...>]

desearia conocer afondo openflow. podrian ayudarme?

_________________________________________________________________
T1msn Search. Todo lo que buscas ahora más rapido  
http://search.t1msn.com.mx/

Re: [Openflow-dev] Performer v.s. Entity workflow participant

[Mikel L. <mla...@co...>]

Peter Valckx|Eastsite wrote:
> Thnx for your time and possible solution.. It's not exactly what we 
> want.. With XPDL you can set a single user, just Openflow doesn't 
> support it, so I think we need to change Openflow so we can select 
> single users...?

Well, it supports it, but I agree you that perhaps this isn't the best 
way to solve the problem.

I also think that OpenFlow should have (I don't remember whether XPDL 
says anything on this) a way to assing roles to activities "on-the-fly" 
as can be done with users.

I mean: depending on the situation, I should be able to assign this work 
to Role B members or to Role C members, and this role would be different 
for each Instance.

Well, it's a feature that I had to implement for a client, and I solved 
it "hacking" the way I show the worklist.

Best regards,

-- 
Mikel Larreategi
mla...@co...

CodeSyntax
Azitaingo Industrialdea 3 K
E-20600 Eibar
Tel: (+34) 943 82 17 80

Re: [Openflow-dev] Performer v.s. Entity workflow participant

[Mikel L. <mla...@co...>]

Peter Valckx|Eastsite wrote:
> Hello all,
> 
> I want to use Openflow, but also want to assign single users to an 
> activity. In the manage interface or the API, I see only role functions. 
> When I look at the XPDL specification of the WfMC, I see that the 
> Performer of an activity can be a role or a user or anything else that's 
> described as Entity workflow participant.
> 
> My question: Can i assign activities with Openflow to single users or not?
> 

You can create an application (a python script for example) which 
returns a username and then you can define that application to be "push 
application" of an activity.

Each time this activity is reached in the workflow, the pushing 
application will be called and the work will be asigned to the user the 
application returns.

-- 
Mikel Larreategi
mla...@co...

CodeSyntax
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Tel: (+34) 943 82 17 80

[Openflow-dev] Performer v.s. Entity workflow participant

[Peter Valckx|E. <pe...@ea...>]

Hello all,

I want to use Openflow, but also want to assign single users to an 
activity. In the manage interface or the API, I see only role functions. 
When I look at the XPDL specification of the WfMC, I see that the 
Performer of an activity can be a role or a user or anything else that's 
described as Entity workflow participant.

My question: Can i assign activities with Openflow to single users or not?

Greets,

Peter Valckx

[Openflow-dev] Re: [Openflow-pa] customizing process_id

[Mikel L. <mla...@co...>]

os...@ne... wrote:
> Hi!
> Is it possible to customize the process_id when I add an Openflow insta=
nce?
> My instances id=B4s are like  1101133057.44 and I don=B4t want the poin=
t,=20
> for example:  110113305744
> Another situation: I want to put date/time based id=B4s...

When you create an instance, its id is set using creator's username and=20
current time:

instance.py
(...)
def __init__(self, process_id, activity_id, customer, title=3D'',\
    comments=3D'', priority=3D0):
         self.customer =3D customer
         self.comments =3D comments
         self.id =3D customer + str(DateTime().timeTime())
(...)

You can edit this file to create the ids you want, but be careful=20
because these ids must be unique.

--=20
Mikel Larreategi
mla...@co...

CodeSyntax
Azitaingo Industrialdea 3 K
E-20600 Eibar
Tel: (+34) 943 82 17 80

[Openflow-dev] Re: Openflow Version Status and Version Number?

[Daniele T. <d.t...@ic...>]

Dear Arnold,

you are right. Definitely. We should pay some more attention to these 
details that tend to confuse people. Thanks.

About your concerns to the project development: OpenFlow is alive, although 
all the latest development has taken place on the CVS rather than through 
new releases. We have some great enhancements and extensions to apply to 
OpenFlow as soon as "the right time" comes up.

We currently use OpenFlow as the workflow engine in all of our projects. 
This is good to OpenFlow itself because it makes it grow as a practical 
tool rather than a theoretical speculation. On the other hand, since our 
projects are paid and OpenFlow is not, this leaves us with the problem of 
finding time to take care of the confusing details you came up with. Even 
though they are important for an open-source project.

Should you want to ask some more OpenFlow-related question there is a 
mailing list you can write to (I'm going to post this e-mail to the list 
as well). You can also write to me/icube if you want, of course. Should 
you want to talk to somebody for information on our services (support to 
development, tutoring, counseling...) I invite you to write to my boss, 
Paolo Bizzarri.

A few references for you:
OpenFlow home page:
 http://www.openflow.it
OpenFlow CVS on sourceforge:
 http://sourceforge.net/cvs/?group_id=2370
OpenFlow dev mailing list:
 http://lists.sourceforge.net/mailman/listinfo/openflow-dev
Information on Icube support services: 
 p.b...@ic...


Thank you for your interest in OpenFlow,
 Daniele


On Friday 03 December 2004 00:11, Arnold Jones wrote:
>   We are considering using OpenFlow for a project.
>   On the OpenFlow Documentation Index page you have a link to the
>   "Current Status" which is:
>   http://www.openflow.it/Documentation/documentation/CurrentStatus
>
>   The current status page tend to led me to think nothing has been
>   done since March 2002 and version 0.72.  Yet I see that the current
>   download version is 1.20.
>
>   Is the development on OpenFlow ongoing and still active?
>
>   Also when I download the openflow.1.2.0.tgz file and look at the
>   VERSION.txt file it reads 1.1.0. Is this correct?
>
>
>   Thanks ...
>
>   - Arnold

-- 
Daniele Tarini - Research & Development - Icube S.r.l.
Address:        Via Ridolfi 15 - 56124 Pisa (PI), Italy
E-mail: d.t...@ic...     Web:    http://www.icube.it
Phone:  (+39) 050 97 02 07      Fax:    (+39) 050 31 36 588

[Openflow-dev] Re: [Openflow-pa] Openflow implementation contract

[Daniele T. <d.t...@ic...>]

Hello Cory,

please read inline comments/suggestions.


On Monday 15 November 2004 22:45, Ben M wrote:
> I have a client that has chosen Openflow as their solution, but needs
> someone (me) to handle the implementation.
>
> They have a complex system requiring mutiple levels of approval and review
> for hardware design. A web designer by trade, I am somewhat familiar with
> workflow and have been researching Openflow, but there are still several
> gaps in my knowledge....
>
> * Does anyone have experience in quoting an Openflow implementation? A
> sample proposal, with anything sensitive removed of course, would be
> amazingly helpful.

Can't really help you there. You could mention the OpenFlow strengths you can 
find on the OpenFlow site at www.openflow.it.


> * Any thoughts on common gotchas?

See my answer to point 3-4, below.


> * At this point I haven't studied their process enough to know if Openflow
> will work as-is or needs to be extended? If so, what is that process like?
> (I do have some experience in Python programming)

OpenFlow is a tool for supporting workflow applications that are developed by 
Zope/python programmers. It is *not* an end-user application. You can have an 
example of the applications you can support with OpenFlow downloading the 
example available in the download page at www.openflow.it.

So since OpenFlow is just a tool that you use in your application I suggest 
getting acquainted with the environment it is created for: Zope. I'm afraid 
being a python programmer is not enough to use OpenFlow, you should get 
somehow into Zope. 

If your application is just to give it a try, then you'll just need the 
ZopeBook documentation. That would be a good start and still lets you develop 
some quite capable and usable applications. Most of the OpenFlow examples you 
can download are made with just Python Scripts and DTML-ZPT. Then, if your 
interest goes further, you can dive into the developer's book and exploit 
some more of the Zope/OpenFlow functionalities.


> * Does Openflow have enough capability to stand alone, or should I expect
> to develop companion web applications to handle information submission,
> files, etc...?

OpenFlow is not stand alone. The application you develop makes use of OpenFlow 
to coordinate the people and their work. I'm afraid you'll have to develop 
the interfaces and back-end logic of your project. OpenFlow will be beneath 
all this, given that you need to handle work between people. 


> Thanks!
> Cory

Thanks for your interest,
 Daniele


-- 
Daniele Tarini - Research & Development - Icube S.r.l.
Address:        Via Ridolfi 15 - 56124 Pisa (PI), Italy
E-mail: d.t...@ic...     Web:    http://www.icube.it
Phone:  (+39) 050 97 02 07      Fax:    (+39) 050 31 36 588

[Openflow-dev] OF-XPDL converter

[David O. <Dav...@hw...>]

Hi Mike,
I would love to get a copy of your OF - XPDL Converter.  I have just started
using Openflow and would like to see if the modelling tool I am using plus
your converter could be used to do a round trip engineering job.
Cheers
David Orr
IT Development Team Leader
Henry Walker Eltin

Tel: +61 2 9887 6406
Mob: 0413 677 423
Email: dav...@hw...
Web: www.hwe.biz

Henry Walker Eltin
33 Paul Street North
North Ryde
NSW 2113
Australia

[Openflow-dev] OF-XPDL converter

[Mikel L. <lar...@ei...>]

Hi:

I've finished my Final Year Project, and i'd like to share with you my 
OpenFlow - XPDL converter, developed as a part of this project.

The converter has 2 files, one for XPDL importing and the other one to 
exporting OpenFlow to XPDL. They must be used as External Methods, so 
you must put them at $ZOPEHOME/Extensions and then create 2 External 
Methods.

I hope that system will not delete the attached file.

You can also ask me to send you the file.

Greetings,

Mikel Larreategi

[Openflow-dev] Question about the demos on the www.openflow.it

[<hui...@df...>]

Hello,
i downloaded the demos on the homepage of Openflow and imported it into Zope.
The title of Workflow(Openflow instance) in the demos is "This object from the
OpenFlow product is broken!". But i have correctly installed Openflow on Zope
and can use it to create new instance.
Could somebody explain this problem? I'm using Openflow 1.2.0 and on Openflow
0.7.0 this problem also appears.

Regards,

Hui

[Openflow-dev] re: display a map with OFEditor

[Mikel L. <lar...@ei...>]

> Hello everybody
>  I want to display my OF process contained in a folder named "Processus" which contains
> folders.
>  I know that in  each of those folders i have an openflow object with its process and
> instances.
>  i want to do this with a <dtml-tree tag.
>  And after that to display the OpenFlowEditor graph corresponding to each process just by
> cliking in a process.
>  thank u for help



You can try with a Page Template like this in your Processes Folder:

  <tal:block repeat="folder python:here.superValues('Folder')">
    <tal:block repeat="of python:folder.objectValues('OpenFlow')">
     <a tal:attributes="href of/absolute_url" 
tal:content="of/id">Workflow name</a>
      <ul tal:repeat="pr python:of.objectValues('Process')">
        <li><a tal:attributes="href pr/absolute_url" 
tal:content="pr/id">Process ID</a></li>
      </ul>
      <hr/>
    </tal:block>
  </tal:block>


Mikel

[Openflow-dev] display a map with OFEditor

[masseyni d. <mas...@op...>]

Hello everybody
I want to display my OF process contained in a folder named "Processus" which contains folders.
I know that in  each of those folders i have an openflow object with its process and instances.
i want to do this with a <dtml-tree tag.
And after that to display the OpenFlowEditor graph corresponding to each process just by cliking in a process.
thank u for help
-- 
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Re: [Openflow-dev] How create application

[Mikel L. <lar...@ei...>]

  houneida haddaji wrote:

> Hello, i would like to create a workflow with Openflow, i create my
> proces, activities, roles, but i don't know how i associte this proces
> with my application.
> How really applicate openflow.
> If you have some examples of applications with Openflow, please send it
> to me.
> Thank you.

Hi:

In OpenFlow an application is everything that can be called by URL. You 
have to go to Applications tab and add a new application and fill the 
form with a name and an URL to be called.

Then you have to go to the activity you want to link the application and 
select it in the drop-down list on your right

You also have to create the object which will be called using that URL, 
a ZSQL Method, DTML Method, Page Template, Python Script or anything else.

Best regards,

Mikel Larreategi
lar...@ei...

Re: [Openflow-dev] How create application

[Yuri <yu...@al...>]

houneida haddaji wrote:

>Hello, i would like to create a workflow with Openflow, i create my
>proces, activities, roles, but i don't know how i associte this proces
>with my application.
>How really applicate openflow.
>If you have some examples of applications with Openflow, please send it
>to me.
>Thank you.
>
See the downloadable examples in www.openflow.it :) they're very clear 
and useful.

                                                                         
   Yuri

[Openflow-dev] How create application

[houneida h. <ha...@we...>]

Hello, i would like to create a workflow with Openflow, i create my
proces, activities, roles, but i don't know how i associte this proces
with my application.=0D
How really applicate openflow.=0D
If you have some examples of applications with Openflow, please send it
to me.=0D
Thank you.

=0D
=0D

[Openflow-dev] Application d'un processus

[<had...@ya...>]

Salut à tous,
Comment associer un processus de workflow (ensemble de taches) à une application pour tester ce processus?

		
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[Openflow-dev] Re: help about OpenFlow

[Daniele T. <d.t...@ic...>]

Hello masseyni ,

I'm afraid the "leave.zexp" is a bit outdated since it's using an old way to 
retrive an instance from the openflow. The instances have been moved to a 
'ProcessInstances' btree-folder rather than being kept inside the openflow 
itself.

To retrive and instance, instead of doing:

  getattr(open_conge,inst)

try doing:

  open_conge.getInstance(inst)


Cheers,
	Daniele


On Wednesday 12 May 2004 16:41, masseyni wrote:
> Madam ,Sir
> Im a computer science student and im intersted in OpenFlow.
> I 've downloaded the example:"leave.zexp" from your website
> and tried it but i encouter some problems.
> I developped another workflow process to handle a leave
> process  with contains more stages than in "leave.zexp" i've
> downloaded.
> the matter is that:
> when the employee feels the form and submit it, i get errors
> in this kind:
> Error Type: AttributeError
> Error Value: ice1084372381.58
> "ice" is my login name and "ice1084372381.58" would be the
> process instance id.
> I think that the Error comes from the flowing DTML code :
>  "<dtml-let obj="_.getattr(open_conge,inst)">"
> here is my DTML Method that process the StartLeaveForm:
> """""
> <dtml-var standard_html_header>
> <h2><dtml-var document_title></h2>
> <p>
> <dtml-let inst="open_conge.addInstance('conge_annuel',
>    AUTHENTICATED_USER.getUserName(),
>   'no comment',
>   'Demande de congé de : ' +  AUTHENTICATED_USER.getUserName(),
>    activation=0)">
> <dtml-let obj="_.getattr(open_conge,inst)">
> <dtml-call "obj.manage_addProperty('soumise', '', 'string')">
> <dtml-call "obj.manage_addProperty('Ok_chef', '', 'string')">
> <dtml-call "obj.manage_addProperty('remp', '', 'string')">
> <dtml-call "obj.manage_addProperty('approuve', '', 'string')">
> <dtml-call "obj.manage_addProperty('decision', '', 'text')">
> <dtml-call "open_conge.startInstance(inst)">
> Demande Envoyée
> </dtml-let>
> </dtml-let>
> </p>
> <p>
> <a href="index_html">ACCUEIL</a>
> </p>
> <dtml-var standard_html_footer>
> """"""
> I hope you'll help
> Best reagards
> Ps: im french native speaker then my english would not be so
> expressful
> and i apologize for that
> En esperant vous lire bientot
>
> Accédez au courrier électronique de La Poste : www.laposte.net ;
> 3615 LAPOSTENET (0,34€/mn) ; tél : 08 92 68 13 50 (0,34€/mn)

-- 
Daniele Tarini - Research & Development - Icube S.r.l.
Address:        Via Ridolfi 15 - 56124 Pisa (PI), Italy
E-mail: d.t...@ic...     Web:    http://www.icube.it
Phone:  (+39) 050 97 02 07      Fax:    (+39) 050 31 36 588

RE: [Openflow-dev] completeWorkitem Problem

[David A. <dav...@ve...>]

All,
=20
This error also arises when attempting to complete the items from within =
the
instances view in the workflow folder.
=20
Dave

-----Original Message-----
From: ope...@li...
[mailto:ope...@li...] On Behalf Of David =
Ayres
Sent: Thursday, March 04, 2004 1:14 PM
To: ope...@li...
Subject: [Openflow-dev] completeWorkitem Problem


Hey everyone.
=20
I've been working with Openflow for about 2 weeks now with only a few
"learning glitches" here and there. However, I've been having a problem =
with
the completeWorkitem function. I call the function as follows:
=20
<dtml-call "qlwf.completeWorkitem(instance_id,workitem_id)">
=20
This results in the following error even though instance_id IS defined =
and
available:
=20
Error Type: NameError
Error Value: global name 'instance_id' is not defined


Any help would be greatly appreciated! I'm pulling my hair out!
Dave

[Openflow-dev] completeWorkitem Problem

[David A. <dav...@ve...>]

Hey everyone.
=20
I've been working with Openflow for about 2 weeks now with only a few
"learning glitches" here and there. However, I've been having a problem =
with
the completeWorkitem function. I call the function as follows:
=20
<dtml-call "qlwf.completeWorkitem(instance_id,workitem_id)">
=20
This results in the following error even though instance_id IS defined =
and
available:
=20
Error Type: NameError
Error Value: global name 'instance_id' is not defined


Any help would be greatly appreciated! I'm pulling my hair out!
Dave

[Fwd: Re: [Openflow-dev] Add Transition Problem]

[Carrer Y. <yu...@al...>]

> Hi to all of you,
>
> I am using OpenFlow 1.2.0 for the last month (Zope-2.6.1). Great Product.
>
> I noticed a small bug when I create a new transition. The description 
> attribute is not saved.
>
> I have to change transition attributes and then the description is 
> saved properly.
>
> Does anyone have the same problem?
>

in 1.1.0 it is not a problem.

In 1.2.0:



   def addTransition(self, id, From, To, condition=None, REQUEST=None):
       """ adds a transition """
       t = transition(id, From, To, condition)
       self._setObject(t.id, t)
       if REQUEST: REQUEST.RESPONSE.redirect(REQUEST.HTTP_REFERER)

it does not set it :-)

   def edit(self, condition, From, To, description, REQUEST=None):
       """  """
       self.condition = condition
       self.From = From
       self.To = To
       self.description = description
       self.reindex_object()
       if REQUEST: REQUEST.RESPONSE.redirect('../index_html')

it does set it :-)

So just add

t.description = REQUEST['description'] in addTransition :-)




> Nikos Papagrigoriou.
>
>
>
> -------------------------------------------------------
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> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/openflow-dev

Re: [Openflow-dev] Add Transition Problem

[Mikel L. <lar...@ei...>]

Nikos Papagrigoriou wrote:
> Hi to all of you,
> 
> I am using OpenFlow 1.2.0 for the last month (Zope-2.6.1). Great Product.
> 
> I noticed a small bug when I create a new transition. The description 
> attribute is not saved.
> 
> I have to change transition attributes and then the description is saved 
> properly.
> 
> Does anyone have the same problem?
> 

in transition.py we have:

      def __init__(self, id, From, To, condition='', description''):

but when a transition is added, zope calls method addTransition in
process.py it's called without description: (Line 138)

def addTransition(self,id,From,To,condition=None,REQUEST=None):
      t = transition(id, From, To, condition)
      (...)

It seems to be a bug here, it should work adding description:

def addTransition(self,id,From,To,condition=None,description=None
REQUEST=None):
      t = transition(id, From, To, condition, description)
      (...)


Regards,

Mikel