July 2002 - Zope - Zope lists

Form Data and Passing to other Pages
by Alexander M Hottenstein 03 Jul '02

03 Jul '02

I have an advanced propertysheet editing page that I created which must have quite a bit of additional functionality. On this page, I display several text areas filled with text blurbs. If there is no data for any individual text blurb, I do not display the text area, but rather some notification text, and a form button which I wish to link over to another page which uses the IE Active X WYSIWYG editor (which I already have running) to edit some additional data. The problem is, I do not want to have more then one copy of the editor page, and to know which data to edit, and where to save it, the IE Edit must know where it was linked from. How would you do this? - Alex Hottenstein

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Workaround for Pluggable Brains bug?
by DA Loeffler 03 Jul '02

03 Jul '02

Hello, I would like to ask if anyone knows of a workaround for a bug in Pluggable Brains. The bug is a well known one, and has been discussed on zope(a)zope.org at least twice and reported to the Collector. However, there is no sign of afix yet. Essentially, the problem is that one cannot add one's own attributes to a Pluggable Brain class. The most recent discussion of this is "[Zope] bug in pluggable brains ?" posted by Geir Bkholt, 05/09/2002 10:02 PM. The problem I am facing is this: to assemble a complicated set of data from several SQL queries, fiddle the data extensively, then pass it on bit by bit to a simple ZPT sitting in the foreground (it must be simple enough to be edited by content managers without tinkering with the business code). It must be able to pass the data on in bits, not all of which will be used each time it is called (the user must be able to select different levels of detail), so it cannot be a single method. I had hoped to implement the data assembly object as a Pluggable Brain, but the bug prevents me from storing data in it easily. How else can one create a custom class for ephemeral objects which lie outside the main Zope object database hierarchy and last only for the duration of one transaction? David Loeffler

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Zope and Apache+SSL
by Alexandre Peshansky 03 Jul '02

03 Jul '02

I am trying to set up Zope so that it is accessible via secure link through Apache. Configuration: Solaris 2.8 Apache-2.0 with mod_ssl and mod_proxy shared Zope 2.5 Apache lives in /usr/local/apache2 and has the following in its configuration: <IfModule mod_proxy.c> ProxyRequests On ProxyPass /Zope/ http://myhost:8080/ ProxyPassReverse /Zope/ http://myhost:8080/ ProxyPass /misc_ http://myhost:8080/misc_ ProxyPass /p_ http://myhost:8080/p_ </IfModule> Zope lives in /usr/local/Zope. If I just use it like this, all forms are insecure, so I added a SiteRoot object to a root folder with Base https://myhost/Zope and Path / Now everything is secure, but the top frame of the management interface returns Object not found! error (404), and apache error_log shows that it tried to access https://myhost/manage_page_style.css If I try to go to https://myhost/Zope/manage_zmi_prefs and change there "Use Style Sheets" to "No", it is accepted, but going to https://myhost/Zope/manage still gives me the same error, even if I try to restart Zope. Anybody can help me with that? Pretty please? With sugar on top ;-) -- Alexandre Peshansky, Systems Manager, RUH, NY (note last name spelling change)

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RFP for JHU Center for Communication Programs
by KEVIN ZEMBOWER 03 Jul '02

03 Jul '02

Because you responded to a previous Request for Proposal from the Johns Hopkins University Center for Communication Programs, I thought you might be interested in another RFP for our Pop Reporter Delivery System. You can find specifications at http://www.jhuccp.org/rfp/popreporterdeliverysystem.htm. Please note that the deadline for proposals is 19-July-2002. If you do not wish to be notified of future proposals, please let me know and I will remove you from the list. Thanks for your consideration of this RFP. -Kevin Zembower ----- E. Kevin Zembower Unix Administrator Johns Hopkins University/Center for Communications Programs 111 Market Place, Suite 310 Baltimore, MD 21202 410-659-6139

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Re: [Zope] Extending Formulator with a derived product
by Egon Frerich 03 Jul '02

03 Jul '02

Hi, there is a special list at sourceforge - maybe you can get an answer there (<underline><color><param>0000,8000,0000</param>formulator-general(a)lists.sourceforge.net) </underline>E. Frerich</color> >Message: 26 >To: <underline><color><param>0000,8000,0000</param>zope(a)zope.org</underline></color> >From: "Jeff Kowalczyk" <<<underline><color><param>0000,8000,0000</param>jtk(a)yahoo.com</underline></color>> >Date: Wed, 3 Jul 2002 10:41:06 -0400 >Subject: [Zope] Extending Formulator with a derived product >I need to extend formulator functionality with a new property >group, akin to 'widget' and 'validator'. >Layout is a new class to give fields some positional rendering >capabilities. These properties are going to live on the form >...<color><param>0100,0100,0100</param> <nofill>

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Re: [Zope] catalog-aware z-classes
by Ben Avery 03 Jul '02

03 Jul '02

hi Douwe, thanks for your quick response. I don't think I could use one catalog, as I'll be searching on different fieldnames, and wanting different metadata for each z-class, so I would need all the indexes and metadata for each object - there will be around 30 z-classes, so the catalog might have around 100 indexes and metadata items. I prefer the idea having assigning a catalog to each z-class. I can see this in the source code for Catalog/CatalogAwareness.manage_editCataloger, which looks like it allows the default to be changed through the ZMI, but have no idea how to find and set this through the ZMI for my z-classes. does anyone have any advice on how to do this? thanks, Ben Avery -----Original Message----- From: douwe(a)oberon.nl [mailto:douwe@oberon.nl] Sent: 03 July 2002 13:41 To: Ben Avery; zope(a)zope.org Subject: RE: [Zope] catalog-aware z-classes Hi, Why not store them in the same catalog and filter on meta_type when searching? Anyway, I don't think there is a problem storing ZClass instances in a Catalog named other then Catalog, except for that it won't happen automatically, you'll have to do it yourself. Douwe > -----Original Message----- > From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of Ben > Avery > Sent: Wednesday, July 03, 2002 2:14 PM > To: zope(a)zope.org > Subject: [Zope] catalog-aware z-classes > > > Hi, > > I need to create a number of z-classes to represent objects, and want > them to be catalog aware, with each having its own catalog. > The example in the Zope book requires the catalog to have the id > 'Catalog' or it won't work, as this is the default for ZCatalog-aware > objects. > But I'll need different ids, as I have more than one catalog. How can I > override this default? > > thanks, > > Ben Avery > > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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Upgraded to 2.5.1/2.1.3, now I don't get a 'session_data' in 'temp_folder' on startup..
by Tony McDonald 03 Jul '02

03 Jul '02

Hows *that* for a descriptive subject line! :) But seriously folks... I've upgraded an installation to Zope 2.5.1/Python 2.1.3 and I get the weirdest error. The 'session_data' object in the top level folder 'temp_folder' does not get created - but only on *one* of my 2.5.1/2.1.3 sites. As this is the most important of our sites, and we use session machinery quite a bit, I tend to notice this rather quickly. Can anyone think of where I might start to look for a solution to this problem? Ta Tone. -- Dr Tony McDonald, Assistant Director, FMCC, http://www.fmcc.org.uk/ The Medical School, Newcastle University Tel: +44 191 243 6140 A Zope list for UK HE/FE http://www.fmcc.org.uk/mailman/listinfo/zope

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ExternalEditor question with HomeSite
by Schmidt, Allen J. 03 Jul '02

03 Jul '02

I use HomeSite 5 on Windows for HTML editing of Zope files through FTP. Works great. Wanted to use it and try EE on my Zope files. It opens them fine and saves them fine. But if I only save and close just that one file and then try to reopen it, I get a WebDav locked error. If I close HomeSite altogether it works fine when reopening that same file. HomeSite appears not to be sending the unlock signal back to Zope but it DOES save the file. Just thought I would pass that on. BTW... HomeSite5 through FTP to Zope is a killer tool. I've said it here before but thought I would mention it again for any new Windows users out there. -Allen

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Extending Formulator with a derived product
by Jeff Kowalczyk 03 Jul '02

03 Jul '02

I need to extend formulator functionality with a new property group, akin to 'widget' and 'validator'. Layout is a new class to give fields some positional rendering capabilities. These properties are going to live on the form fields, so the rendering for the form instances can be generic. I've got the basic mechanism working on a copy of the Formulator CVS source. However, I want to switch to deriving my product from Formulator rather than maintaining a private fork of the code. I don't know how to derive from the sophisticated Formulator class heirarchy to accomplish the changes. Can anyone suggest how to set up a derived product to do it? Thanks for any advice. Layout.py is (for now) like Widget.py, except for these changes: [Layout.py (new)] ---------------------------------------------------------------- class Layout: ... property_names = ['vertical_position', 'horizontal_position'] vertical_position = fields.StringField('vertical_position', title='Vertical Position', description=( "vertical position of field in some rendering scheme"), default="", required=0) horizontal_position = fields.StringField('horizontal_positition', title='Horizontal Position', description=( "horizontal position of field in some rendering scheme"), default="", required=0) ... LayoutInstance = Layout() [FieldRegistry.py (added)] ---------------------------------------------------------------- for field in getPropertyFields(field_class.layout): form.add_field(field, "layout") tales_field = fields.TALESField(field.id, title=field.get_value('title'), description="", default="", display_width=40, required=0) tales_form.add_field(tales_field, "layout") method_field = fields.MethodField(field.id, title=field.get_value("title"), description="", default="", required=0) override_form.add_field(method_field, "layout") These modules need to import the new module: [ListAreaTextField.py, MethodField.py, StandardFields.py, TalesField.py (changed)] ---------------------------------------------------------------- import Widget, Validator, Layout [StandardFields.py (changed)] ---------------------------------------------------------------- class StringField(ZMIField): meta_type = "StringField" widget = Widget.TextWidgetInstance validator = Validator.StringValidatorInstance layout = Layout.LayoutInstance (repeated for each field class...) [ListTextAreaField.py (changed)] ---------------------------------------------------------------- class ListTextAreaField(ZMIField): ... widget = ListTextAreaWidgetInstance validator = ListLinesValidatorInstance layout = Layout.LayoutInstance [TalesField.py (changed)] ---------------------------------------------------------------- class TALESField(ZMIField): ... widget = TALESWidgetInstance validator = TALESValidatorInstance layout = Layout.LayoutInstance And a trivial change to allow the new type to coexist with the real one: [Form.py (changed)] ---------------------------------------------------------------- class ZMIForm(ObjectManager, PropertyManager, RoleManager, Item, Form): ... meta_type = "Formulator2 Form"

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Current preferred procedure for using Apache and Zope.
by Alec Munro 03 Jul '02

03 Jul '02

Hi all, I'm just trying to get these two to work together for the first time, and I've got the PCGI method working fine, but I'm interested in the Proxy method, as well as maybe FastCGI. I found a tutorial for the first one, but it's over two years old (and Apache complains when I attempt it), so I thought I would ask around here, find out what you guys are doing. Also, it would be interesting to hear peoples reasons for choosing to involve Apache. For me, we currently have a fair amount of static content left over from our old site, and very little development time, so I figured Apache would be better suited to serving that content. Thanks very much. Alec Munro

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