September 2004 - Zope

Zope restart didn't work
by John Poltorak 29 Sep '04

29 Sep '04

I just clicked on restart from the control panel and it looks like Zope has failed to start. How do I tell what went wrong? It is installed on a remote server and my only contact is via SSH... -- John

2 3

Archetype or Product inheritance
by Bryan Simmons 29 Sep '04

29 Sep '04

Hi all, Suppose I have a zope product, or an Archetype-based content-type, like ATEvent. If I use __implements__ to define another content-type, will my new content-type inherit the ATEvent schema? That would fit true polymorphism and I would expect zope to conform truly to OOP. I'm hoping this is correct because it would make development a lot swifter (better to build upon something already tested and stable). -- Regards, Bryan Simmons -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live. -- Rick Osborne -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

3 2

Re: [Zope] redirection problem
by Larry McDonnell 29 Sep '04

29 Sep '04

J Cameron Cooper wrote: > Larry McDonnell wrote: > >> I have run into a wall. I am trying to use a pull down menu to >> redirect the form to another page. >> >> <select name="form_action_type" size="1"> >> >> <dtml-in lookup_action_query sort=school_name> >> <OPTION VALUE="<dtml-var action_file_location>"> >> <dtml-var school_name> <dtml-var sport_type> >> </OPTION> >> </dtml-in> >> </SELECT> >> >> action_file_location hold the path to where I am trying to get to. I >> tried this >> <form method="post" action=<dtml-var expr="form_action_type">> >> >> But I get a key error. I am trying to do this on the same form.Can I >> do this? Can some point me in the right direction. > > > How is DTML to know what the selected value of the HTML widget is? > Remember that the choice is client side and the rendering is all > server side. If it doesn't exist in the namespace upon rendering, a > name will never be found, thus your key error. > > The object to which this form is submitted will have > 'form_action_type' in the REQUEST, however. > > You have two options: > > 1. use Javascript to change the form's action value upon change in the > widget. > > 2. create a Python script and submit the form to that. The script will > look up the value in the REQUEST and do a redirect. This will look > something like:: > > ## parameters=form_action_type > > context.REQUEST.RESPONSE.redirect(form_action_type) > > > I like #2 because it doesn't rely on browser capabilities. Your other > option is to restructure your UI: make it a list of links and the > problem goes away. May or may not be feasible. > > --jcc > Thanks, I would like to try Python too. Larry

1 0

redirection problem
by Larry McDonnell 29 Sep '04

29 Sep '04

Hi, I have run into a wall. I am trying to use a pull down menu to redirect the form to another page. <select name="form_action_type" size="1"> <dtml-in lookup_action_query sort=school_name> <OPTION VALUE="<dtml-var action_file_location>"> <dtml-var school_name> <dtml-var sport_type> </OPTION> </dtml-in> </SELECT> action_file_location hold the path to where I am trying to get to. I tried this <form method="post" action=<dtml-var expr="form_action_type">> But I get a key error. I am trying to do this on the same form. Can I do this? Can some point me in the right direction. Thanks, Larry

2 2

bci.NotAvailable
by Arenz, Ralph 29 Sep '04

29 Sep '04

hello, i'am using ZPublisher.Client within a Product to call zope-methods(DTML-methods). For a long time that works well, but for a couple of days it doesn't. It seems that the target-url ist called correctly but sometimes i get an error in the log-file: error-type:bci.NotAvailable error-value:Recv timed out(File:[called url] Line:[]) How can i fetch more information about the error which cause Client.py to throw bci.NotAvailable? (calling the target-url directly from a browser works well) any hints?

2 1

RE: [Zope] Calling external method from javascript
by Laura McCord 29 Sep '04

29 Sep '04

This is where I am at right now. I wrote a javascript function loadZopeMethod() and I tried it by itself and it works. But I tried what you suggested: tal:attributes="onclick string:showObject(event, '${box}'); jsRoutine2(); jsRoutine3();" <A href="javascript:;" tal:attributes="onclick string:showObject(event, '${box}'); loadZopeMethod();">MACAddress Table</a> This does not work. Did I do something wrong? BTW thanks for your time. Laura -----Original Message----- From: Jonathan Hobbs [mailto:toolkit@magma.ca] Sent: Wednesday, September 29, 2004 10:08 AM To: Laura McCord; zope(a)zope.org Subject: Re: [Zope] Calling external method from javascript From: "Laura McCord" <Laura.McCord(a)doucet-austin.com> > I am having trouble with this part of my program. I have an onclick > function that needs to perform three things. I know that I should have > a javascript function that basically handles these three operations, > but I don't know how to call an external method from javascript. I am > using a zope page template if that helps. I have googled on this topic > and there is not a lot said about this situation. I did run across > someone using dtml and calling dtml methods from javascript but did > not see any examples on using it with zope page templates. > > Typically I would call a external function like this: <div > tal:content="python:here.deleteMAC()"> but this won't work. AFAIK javascript can not call a zope method (dtml, script or external method) directly, javascript has to do indirectly by loading a url into the browser. You can load into a window, frame, div, etc. Here is an example: displaywindow.location.href = '<dtml-var baseurl>DisplayPage?id='+presentorpage+'&stype='+pagetype+'&path='+pagep baseurl>ath This one line of javascript will load a zope routine called DisplayPage (with a url path specified by a dtml variable called baseurl) into a browser window named 'displaywindow'. It also passes some parameters (id, stype, path) to the zope routine. If you need to communicate between the client process (running in the users browser) and the server process (ie a zope routine) without the user seeing anything, you can accomplish this using a hidden div in your html (use javascript to load the url (containing your call to the external method) into the hidden div), this will allow you to call a zope routine and get some results without changing the user's browser's display. The zope routine you call (via the hidden div) can return javascript variables which you can then parse to determine what you want to do next (embed an 'onload' javascript command in the html returned by the zope routine to cause a javascript routine to execute after the hidden div is loaded). HTH Jonathan

2 1

Message board software
by John Poltorak 29 Sep '04

29 Sep '04

Is there any Zope based message board software available equivalent to something like phpBB? -- John

4 4

Re: [Zope] Counting hits
by Rodrigo Dias Arruda Senra 29 Sep '04

29 Sep '04

[Me]: ------ > Decrease in transaction paralelism ? [ Andreas Jung ]: ------------------------- > Likely because every change is a write to the database blocking other > transactions with some risk to get ZODB conflict errors. That is new for me, it sounds like if ZODB had a global lock for the entire database? I thought locks were more localized inside the object hierarchy tree. Interesting. [ Andreas Jung ]: ------------------------- > I would use a counter on the FS or so. There are some counter products on > zope.org working that way....no idea about product names. Found some: http://www.zope.org/Members/SmileyChris/FScounter http://zope.org/Members/maxm/news/mxmCounter_release Thanks a lot. cheers, Senra

1 0

ClassSecurityInfo().declareProtected()
by drew nichols 29 Sep '04

29 Sep '04

Hello, Is it possible to protect a class method with multiple permissions? ClassSecurityInfo().declareProtected(['perm1','perm2'], 'method') doesn't seem to work and ClassSecurityInfo().declareProtected('perm1', 'method') ClassSecurityInfo().declareProtected('perm2', 'method') will default to perm2 - the last assertion. Do I need to create a new permission?

2 1

Counting hits
by John Poltorak 29 Sep '04

29 Sep '04

How do people count the number of hits they have on a Zope website? -- John

8 11