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Re: [Zope] Zooming images
by Darran Edmundson 18 Oct '99

18 Oct '99

Rafael Cordones Marcos <rcm(a)bcnartdirecte.com> wrote: > The thing is this cases also contain photos. I would like users > to be able to enlarge them. What is the 'Zope' way to do this? I mean, > do I have to have two Image objects, small and large? Maybe I could > make a function that given an Image object and a height and with > parameters would return an Image object with the small image. Anybody > knows of some code/docs where I could start? I had a similar problem in that I often have various incarnations of the same image (be it gif thumbnail, different resolution jpegs, maybe a postscript version, etc.) My solution was to create a ZClass called DImage. In addition to having some useful properties like a caption, creator, and date, DImage can contain any number of images or files (the postscript). I am still in the process of writing methods (i.e., my product is not ready for public distribution) to render different versions but at least all of the data is encapsulated in a single object. Cheers, Darran. -- Darran Edmundson [Darran.Edmundson(a)anu.edu.au]

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Re: [Zope] Is there a way to force a commit ??
by Cayce Ullman 18 Oct '99

18 Oct '99

Forcing a commit fixed my problem. So I wouldn't say its nonsense. My guess is that, yes all properties of a ZClass when changed are readily available within that thread. But, the manage_clone method I was using is pulling and putting objects straight off of the ZODB and not from my transaction space. Please correct me if I am wrong. Cayce --- Martijn Pieters <mj(a)antraciet.nl> wrote: > Absolute nonsense. Within your thread, all changes > you make are immediatly > visible, no commit is needed. If you have problems > changing a newly created > ZClass instances properties, then the problem lies > elsewhere. > > -- > At 04:41 14/10/99 , Cayce Ullman wrote: > > >I have noticed others asking questions similar > >to this, but have not seen an answer. It seems > >that it is not possible to change the properties of > >a newly cloned zClass within the same DTML in one > >click. Common sentiment seems to think that the > >newly created object is not yet set down or > commited. > >Is there any way to force a commit, maybe using > >dtml-try, or an external method, or something? > ===== __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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Re: [Zope] Help on ZCatalog
by Kevin Dangoor 18 Oct '99

18 Oct '99

Hi, Check out the ZCatalog Tutorial if you haven't already (http://www.zope.org/Documentation/How-To/ZCatalogTutorial) One way to get started with searching a ZCatalog is to create a "Z Search Interface". This will give you a search form and a report. The report shows you how you can search. Some basic syntax you can use: <dtml-in "Catalog({artistname: 'Buffett'})"> ...stuff to display the results... <p><a href="<dtml-var "getpath(data_record_id_)">"><dtml-var title></a></p> </dtml-in> You use the getpath function to get the URL of the cataloged object. Kevin -----Original Message----- From: Willie Peloquin <wpeloqui(a)ismi.net> To: zope(a)zope.org <zope(a)zope.org> Date: Sunday, October 17, 1999 12:37 AM Subject: [Zope] Help on ZCatalog >Hi, > >I have created a ZClass and would like to use a ZCatalog, I have not been >able to find any tutorial or an example to make this work. > >For example, I want to create a ZClass to contain CD objects, as in the >tutorial. I now want to build a search screen to find all my Jimmy Buffett >CD's. I use ZCatalog for that. I was able to set up a ZCatalog and find the >CD instances, but that is as far as I could get, I don't understand how to >search for ARTISTNAME = *, or something similar.

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Types for DA
by Hannu Krosing 17 Oct '99

17 Oct '99

I have been working on improving ZPostgreSQLDA to recognize more types, and now I have a problem with missing types. The biggest need is for Time (I've found only DateTime, which i can't use) Or is there a hidden Time type somewhere ? If not, could I use mxDateTime, which has all the needed types and all possible import/export formats ? I'm not sure it would play nicely with Zope. So what would be easier - 1. reimplement Zope's DateTime using mxDateTime as base 2. modify Zopes DateTime (to know it is sometimes just plain date and not 12 at noon that day) and add Time to it 3. just use mxDateTime as a separate type, having just the needed formats etc. ? I would also need to implement some other types that have no corresponding python/zope types, like MONEY and NUMERIC. What would that involve and how hard would the integration with zope (especially DocumentTemplate) be ? Does OracleDA implement its own types for NUMERIC etc., or does it just loose precision and use floats/ints ? ------------------ Hannu

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Re: [Zope] Two hairy questions
by Kevin Dangoor 17 Oct '99

17 Oct '99

Hi, Samu Sorry I haven't been more helpful lately, but I've been too busy to answer in depth questions. I do have some advice for you below... Liz Pelletier is correct in her other message that KM|Net News would serve as a better example if it was documented. -----Original Message----- From: Samu Mielonen <ex(a)uiah.fi> To: Zope Mailing List <zope(a)zope.org> Date: Sunday, October 17, 1999 3:11 PM Subject: [Zope] Two hairy questions >The hierarchy of my ArticleStore is as follows: > >News > add.html (submit form) > AddArticle (dtml-method to handle form submit and save contents) > 1999 (year for article's submit date) > 10 (month for article's submit date) > #article1_id (unique_id of article) > index.html (view the article contents) > edit (form to edit article, sends results to postit) Note that "sends results to postit" is key here... > postit (dtml-method to APPROVE article for publication) > #article2_id > ... > >The problem is that I do not understand from the code what postit >does so that the article becomes visible for the publishing methods, >but I do know that untill I put the article object through postit-method >it won't be approved and ready for publishing (for those who know >KM|NetNews, I've usen the property current to denote approval). Basically, the "edit" and "postit" methods are similar to the standard "manage" screen for a propertysheet and "manage_changeProperties" respectively. The "edit" form lets the user set a whole bunch of information about the article. These responses show up in the REQUEST variable. (Specifically, in REQUEST.form, since they are the result of form input). Here is postit (a version that has a bug fixed since the current release version): <dtml-call "REQUEST.set('score', 2000000000-(_.int(REQUEST['release']) + 8640*REQUEST['importance']))"> <dtml-if "not REQUEST.form.has_key('top')"> <dtml-call "REQUEST.set('top', 'off')"> </dtml-if> <dtml-if "not REQUEST.form.has_key('current')"> <dtml-call "REQUEST.set('current', 'off')"> </dtml-if> <dtml-call "propertysheets.artinfo.manage_changeProperties(REQUEST)"> <dtml-call reindex_object> <dtml-var index.html> Basically, this sets the "score" value based on the release and importance values. This is how sorting is done. Then, it checks the form for "top" and "current", since these are checkboxes and nothing is returned if the checkbox is not checked. A call to manage_changeProperties does the actual change, a call to reindex_object applies the changes to the Catalog and then the article is previewed by calling index.html. If you want to make a method (let's say "approve") to do nothing but set the current property, all you need to do is make approve look like this: <dtml-call "propertysheets.artinfo.manage_changeProperties({'current': 'on'})"> <dtml-call reindex_object> <dtml-call index.html> This method will set the current property, reindex the object and preview the article. >Anyway, I want the AddArticle method to PREVIEW a submitted article >(that was sent through the add.html form). This is easy. I can >call article's own index.html from within Addarticle and it is rendered >visible. > >But here I bumb into my first problem. Even though I go into the >article's folder with <dtml-with> and am able to display the >articles text-properties (heading, body text, importance) ok, >I can't display pictures. > ><dtml-with "_[_.str(tsyear)]"> > <dtml-with "_[_.str(tsmonth)]"> > <dtml-with "_[_.str(uniqueID)]"> > > <dtml-var index.html> > > </dtml-with> > </dtml-with> ></dtml-with> > >For some reason, the index.html than renders the images just with ><img src="image_name"> does not understand that it should render >the images in that specific folder from which it is called. In this instance, Zope knows that you're called index.html in the context of the KMArticle object. However, the *browser* thinks you're working in the context of /art (or whatever your KMArticleStore instance is called). So, when you say <img src="image_name">, the browser is going to look up /art/image_name. When index.html is referenced from postit, it is being referenced from /art/1999/10/92831723/postit... so, <img src="image_name"> to the browser seems like: /art/1999/10/92831723/image_name. Perhaps a better way to preview from AddArticle would be to redirect to the article page: within <dtml-with "_[uniqueID]"> put <dtml-call "RESPONSE.redirect(absolute_url())"> >Also, when I finally try approve an article from the >AddArticle method by displaying a link that calls > > http://mydomain/1999/10/somearticleid/postit > >in order "to do the thing" to get article approved, I >can't somehow pass the current article object to >postit, so that it would know what article to handle. It actually does know which article you're dealing with, because you are specifically calling the "postit" method on the KMArticle instance at 1999/10/somearticleid. But, postit is designed to take input from "edit". So, it's looking for "release" and "importance" and trying to set a "score" and such. You could make an approve method like I describe above and call it like this: http://mydomain/1999/10/somearticleid/approve I hope this helps! Kevin

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Re: Squishdot install
by Squishdot 17 Oct '99

17 Oct '99

--- "Nate 'Dr. Octagon' Gelbard" <gelbardn(a)intus.net> wrote: > The install/release/changes/license docs on the zope site are broken > links. I'd like to use it! Can you provide working links? <snip> Squishdot is also available at the Zope website at: http://www.zope.org/Members/butchland/Squishdot Squishdot.org is currently having some technical difficulties and these are the temporary urls: Documentation : http://squishdot.org/Forum/Documentation Download: http://squishdot.org/Forum/Download/Squishdot License: http://squishdot.org/Forum/Documentation/License Changes: http://squishdot.org/Forum/Documentation/Changes Credits: http://squishdot.org/Forum/Documentation/Credits Mailing Lists: http://squishdot.org/Forum/Subscribe Regards, Butch ===== Butch Landingin Squishdot maintainer http://squishdot.org squishdot(a)yahoo.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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Short HOW-TO on server site storage
by Pavlos Christoforou 17 Oct '99

17 Oct '99

Hello - For those who need to store largish 'cookies' on the server for efficiency I have put up a small HOW-To and relevant code on: http://www.zope.org/Members/gaaros/localcookies Pavlos

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Zope Hangs
by Duncan Kinder 17 Oct '99

17 Oct '99

Having installed Zope 2..0.1 into a RedHat 6.0 machine with Apache 1.3.9, I have discovered that when I type './start' it does not return to the command line. When I attempt to access the control panel via my browser, I do not get the left hand window, the one with the indexing. It simply refuses to load. However, I do get the right hand window - the one with the tabs. I can get back to the command line by pressing 'Ctrl-C,' but then I get a "page cannot be displayed error when I attempt to access the 'manage' page. How do I correct this? Regards, Duncan C. Kinder dckinder(a)mountain.net

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RE: [Zope] ZClass propertysheet: Selection/Multi selection/Token
by Janko Hauser 17 Oct '99

17 Oct '99

Ian Blenke writes: > > Now that I have a working _addForm, the next trick is to get the form fields > > populated in the created object. The correct place to do this seems to be in > _add - where the createInObjectManager is called: > > <dtml-with "MyTestZClass.createInObjectManager(REQUEST['id'], > REQUEST)"> > <dtml-comment> >  > </dtml-comment> > </dtml-with> > > Unfortunately, if you remove the comments, I get a "Error Type: > AttributeError", > "Error Value: Basic". Attempting to do anything like the following > beforehand > doesn't seem to help: Perhaps I'm totally off here, but you have beforehand defined a propertysheet named "Basic", haven't you? As Stuart said before, during instantiation you populate a propertysheet, which later gets looked up for all properties. HTH __Janko

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Draft CatalogAware Howto and ZClass question
by Alexandre Ratti 17 Oct '99

17 Oct '99

Hello, I started putting together a Howto on creating a CatalogAware ZClass. I mainly cut and pasted information from this list. The 1st draft can be viewed on <http://www.zope.org/Members/AlexR/CatalogAware/>. If you find inaccuracies or can offer additional information, please get in touch. This howto hasn't been submitted for cataloging yet. The process described in this howto seems to work. New object instances are indexed correctly when created and updated. They are deindexed when deleted. However, I run into the following error when trying to cut and paste an object instance. Error Type: AttributeError Error Value: REQUEST Traceback (innermost last): File D:\ZOPE\GISTI\lib\python\ZPublisher\Publish.py, line 214, in publish_module File D:\ZOPE\GISTI\lib\python\ZPublisher\Publish.py, line 179, in publish File D:\ZOPE\GISTI\lib\python\Zope\__init__.py, line 201, in zpublisher_exception_hook (Object: ElementWithAttributes) File D:\ZOPE\GISTI\lib\python\ZPublisher\Publish.py, line 165, in publish File D:\ZOPE\GISTI\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_pasteObjects) File D:\ZOPE\GISTI\lib\python\ZPublisher\Publish.py, line 102, in call_object (Object: manage_pasteObjects) File D:\ZOPE\GISTI\lib\python\OFS\CopySupport.py, line 225, in manage_pasteObjects (Object: ElementWithAttributes) File D:\ZOPE\GISTI\lib\python\OFS\ObjectManager.py, line 264, in _delObject (Object: ElementWithAttributes) File D:\Zope\Gisti\lib\python\Products\ZCatalog\CatalogAwareness.py, line 130, in manage_beforeDelete (Object: testPDF1) File D:\Zope\Gisti\lib\python\Products\ZCatalog\CatalogAwareness.py, line 187, in unindex_object (Object: testPDF1) File D:\Zope\Gisti\lib\python\Products\ZCatalog\CatalogAwareness.py, line 157, in url (Object: testPDF1) File D:\ZOPE\GISTI\lib\python\OFS\SimpleItem.py, line 316, in absolute_url (Object: testPDF1) AttributeError: (see above) The error occurs on this line in the Python module: if not relative: url.append(self.aq_acquire('REQUEST').script) Something seems wrong in the absolute_url. Can anyone help? Thanks. Alexandre

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