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ANN: patch to <dtml-tree> adds urlparam_expr
by Danny William Adair 16 Apr '01

16 Apr '01

Hi! I patched TreeTag.py so that <dtml-tree> accepts a new parameter "urlparam_expr". It works like urlparam, except that it will take a python expression and evaluate it before creating the querystring for the expanding and contracting widget links. It's a "hotfix product", so you don't have to change your Zope sources. You can get it here: http://www.zope.org/Members/Barabbas/TreeTagPatch I've put the feature request for <dtml-tree> in the Collector, too: http://classic.zope.org:8080/Collector/bugsAndFeatures It's only three little locations that I patched. Maybe someone that knows Zope better than I do can have a look and verify that the patch is ok. Seems to me, but you know... Thanks, Danny

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RE: [Zope] zope rant
by Dieter Maurer 16 Apr '01

16 Apr '01

Paz writes: > I agree. This person is misguided and either a) Does not have the skills in > Python the be able to understand properly what Zope can do and b) Have > corporate requirements that go above and beyond what he expects from a > package like Zope. AMK is Andrew Kuchling, one of the major contributors to Python, owner of several SIG's (Python special interest groups), implementer of lots of Python based projects. It can not be lack of Python skills that he did not use Zope for one special or his projects in general. Dieter

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Access same named Property of Parent Object [newbie]
by Stefan Mallepell 15 Apr '01

15 Apr '01

Hi Is there anybody who could give me a hint, how I access a Property-Value of a parent object, when my current object has a own property with the same name. Is there something like <dtml-var "PARENTS[0].propertyName()"> ... well the above hasen't worked ... and some other experiments ended in a crash either ... ;) Thanks a lot in advance Stefan Mallepell

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Problems with LoginManager
by l.p.arnesen＠usit.uio.no 15 Apr '01

15 Apr '01

I need to implement user authentication (with Zope 2.3.1) based on a PostgreSQL user database and found a HOWTO at zope.org: <URL: http://www.zope.org/Members/jok/SQL_based_LoginManager> This pointed me to a howto for installing LoginManager and ZPatterns: <URL: http://www.zope.org/Members/BwanaZulia/zpatterns_install> After compleating the LoginManager/ZPattern installation I restarted the Zope server, but LoginManager doesn't appear in the list of available objects/folders in the managment user interface. I really need some help to get it working since I haven't found any good information about how to get LoginManager working (except for the two links above). -- Lars Preben

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[newbie] Property with <dtml-var> in it's value
by Stefan Mallepell 15 Apr '01

15 Apr '01

Hi Was just a bit surprised and haven't found anything about this on zope.org ... Can anyone tell me how I can make that a <dtml-var xxxx> which is stored in a Property of a ZClass instance, will be "processed" when I reference it in a dtml method. The property is from type "text" and there is normal text in front and after the dtml-var statement. Thanks for your help Stefan Mallepell PS: I'm very sorry, that I put so many questions in to this email-list at the moment. I hope somewhen in the future I will be able to help myself other newbies ...

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Re: [Zope] Calling dtml method from search result
by Dieter Maurer 15 Apr '01

15 Apr '01

Byron C. Servies writes: > How do I call a DTML method that I have acquired as a result of a ZCatalog search? > > I can get the path to the method from the catalog, but I cannot figure out how to > actually call the method and put the output in the output for the results page. Modern ZCatalog's have an "getobject" method beside the "getpath". "getobject" gives you the object instead of the path. Alternative: whenever you have a path, you can use "restrictedTraverse" to resolve it into an object. Dieter

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Re: [Zope] zope rant
by Jason Cunliffe 15 Apr '01

15 Apr '01

----- Original Message ----- From: "Win GO" <theoden(a)edsamail.com.ph> > could anyone please comment regarding this link: > http://www.amk.ca/python/writing/why-not-zope.html > > it's an article i read on why not to use zope. i just want to know if the author's rants are justified. He obviously did.. A talented Python programmer who liked Zope enough to try it, and then decided [last year, note] that for him there might be a better way. Check out some of the work he has done making ZODB accessible to the general Python programming community, who for whatever reason, may not wish to go 100% Zope. Some good reading there... http://www.amk.ca/zodb/ -- Jason ___________________________________________________________ Jason CUNLIFFE = NOMADICS['Interactive Art and Technology']

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[Ann] Protecting DTML objects from Web-Access
by Dieter Maurer 15 Apr '01

15 Apr '01

Dear Zopistas, Several times, I heard the wish to protect objects from access through the Web while they are otherwise (i.e. from DTML, Python Script, ...) usable as normal. This requirement prevents using the "View" permission as it covers both access from the Web and internally. We discussed earlier to split the View permission into something like a "View" (in the sense of "View through the Web") and "Use" (in the sense as use internally). Recently, I suggested an incredible complex solution for hiding doc strings. Now, I found a really easy way to achieve the goal. It is a hack, though. Splitting the "View" permission would be much more explicit. It goes like this: ZPublisher normally wants to call "index_html" (or whatever standard method handles the HTTP request) when it reaches the end of the URL during traversal. It can be prevented to do this, if either the object does not have (or acquire) the method or is has, but it is 'None'. As DTML objects, and probably many others (Python Scripts may use a different approach), do not want an acquired "index_html" to be called, they define "index_html = None". If a DTML object's "index_html" is set to something different (not 'None'), then this object is called by ZPublisher and not the DTML object. You can set any callable object. It may return a nice page telling the user that he exceeds his limits, raise an exception or set an error response status. Setting "index_html" to "None" again restores the old state. The following trivial external method can set "index_html": def setIndex_html(obj, index_html): obj.index_html= index_html Dieter

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Performing subrequests from DTML
by Ben.Peter＠t-online.de 15 Apr '01

15 Apr '01

Hi all, is there a DTML way to perform a subrequest? Details: I fetch a set of search results from a ZCatalog. All are of a known ZClass. To display the list of results, I have defined a method show_shortlist within the ZClass, the output of which I want to display. So, I would need to issue something like <dtml-in my_results> <dtml-subrequest expr="absolute_url + '/show_shortlist'"> </dtml-in> Is there something like that, or will I need to move the show_shortlist method to the root folder? (Tends to cluttering up). Any other approaches are very welcome, too. Thanks, Ben -- Ben Peter - Feldstrasse 8 - 35091 Coelbe Ben.Peter(a)t-online.de ph: (+49) 6421 983520

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ZClass Constructor addForm / default Values
by Stefan Mallepell 15 Apr '01

15 Apr '01

Hi I have some ZClasses where I would like to sugest in the constructor addForm the default values out of the Class Property sheet. How do I access this values? (special interested in the select type) In advance thanks for helping Stefan Mallepell

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