July 2000 - Zope - Zope lists

Fw: zodbc and mssql
by shortie 31 Jul '00

31 Jul '00

answer to my own question: anyone who have exact problem can find your answer at http://www.egroups.com/message/zope/36394 i will search the archive before asking any question next time. sorry for the inconvinence. -- 'Life is like boxes of chocolate, Forrest. You never know what you're gonna get.' -- Forrest Gump (1994) Lo Chung-Chang (shortie) shortie(a)ms14.hinet.net ICQ#27118251 Kaohsiung.Taiwan.Roc.Earth.Solar.Galaxy.Universe ----- Original Message ----- 寄件者: shortie 收件者: zope(a)zope.org 傳送日期: 2000年7月31日下午 05:03 主旨: zodbc and mssql hello zopers, i have swithed to windows 2000 from redhat linux 6.2, and now zope can response to my request. there comes another problem. the situation is i can add a z odbc database connection to mssql and i can add a sql method using this database connection. but when i try to include the sql method in dtml document, zope keeps asking me username and password. how could this happen? did i miss something again? thanks -- 'Life is like boxes of chocolate, Forrest. You never know what you're gonna get.' -- Forrest Gump (1994) Lo Chung-Chang (shortie) shortie(a)ms14.hinet.net ICQ#27118251 Kaohsiung.Taiwan.Roc.Earth.Solar.Galaxy.Universe

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Unique id product
by Steve Alexander 31 Jul '00

31 Jul '00

Hi Kent, Kent Sin wrote: > I want to develope a unique sequence id generator product, I have the > following code > > def newid(self, increment=1): > """ return new id """ > self.counter = self.counter+increment > return self.counter > > I am not quite sure if this works when more than one process asking for a > newid concurrently. Do you need unique sequential ids, or will just unique ids do? The problem with sequential ids is that you need to store the next id in the sequence somewhere, and access to and incrementing this value becomes a performance bottleneck for your server. Also, if you store the sequence value in the ZODB, you will be creating an undo record each time the id is incremented, and this is an additional performance and storage overhead. If you just want ids that are unique to a folder, try the following algorithm (taken originally from the Discussion object code in the PTK). The variable "self" is the one passed to the constructor method of a particular Python class, and represents the folder you want to put the new object into. I'm assuming the object is a "FooBar Item". The "foobar-%06d" bit generates a unique id for the object that looks like "foobar-290172837", based on the current time. id = int(DateTime().timeTime()) while hasattr(self, str(id)): id = id +1 id = 'foobar-%09d' % id The advantage of this approach is that there is very little contention in most cases. > Is that zodb automatically serial all transaction? For the purposes of generating ids, yes. -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net

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using sister folder methods ?
by Gijs Reulen 31 Jul '00

31 Jul '00

Hi I have a root level folder with a DTML Document. From within this document I want to use a DTML Method that is located in a sister folder; another folder from the root. I tried the full path but that does not seem to work. What else ? Gijs Reulen

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zodbc and mssql
by shortie 31 Jul '00

31 Jul '00

hello zopers, i have swithed to windows 2000 from redhat linux 6.2, and now zope can response to my request. there comes another problem. the situation is i can add a z odbc database connection to mssql and i can add a sql method using this database connection. but when i try to include the sql method in dtml document, zope keeps asking me username and password. how could this happen? did i miss something again? thanks -- 'Life is like boxes of chocolate, Forrest. You never know what you're gonna get.' -- Forrest Gump (1994) Lo Chung-Chang (shortie) shortie(a)ms14.hinet.net ICQ#27118251 Kaohsiung.Taiwan.Roc.Earth.Solar.Galaxy.Universe

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RE: What is the best method to enter more attributes about DTL Document?
by Frederic QUIN 31 Jul '00

31 Jul '00

Hi Marcin, you can write a new HTML page which add a new document. This page must contains a form which post the datas to the method "AddDTMLDocument", responsible for the creation of this object. But, if you need for example, to associate new properties to the new Document, you have to rewrite also the method "AddDTMLDocument". The destination of your form is now "AddMyDoc" and this new method must contains a line similar to : <dtml-call "manage_AddDTMLDocument(...)"> Just write me for more details Bye Frederic

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what products to use?
by Owen Smith 31 Jul '00

31 Jul '00

Hi all I am trying to implement a site which needs the following- A forum/discussion a database of members (400+) who can access certain parts of the site not available to anonymous users the ability for members to change their details online the ability for new members to sign up online which products or methods should I look at using with Zope anyone running a similar setup? (I am confused by choice what works whats current etc etc!) Owen (newbie!)

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connection problem
by vance 31 Jul '00

31 Jul '00

Hi, I'm running Zope 2.1.6 on Redhat 6.2 Intel based system. It appear to start and when I go to manage page and enter username and password I get the following error: Traceback (innermost last): File /usr/lib/python1.5/site-packages/ZPublisher/Publish.py, line 214, in publish_module File /usr/lib/python1.5/site-packages/ZPublisher/Publish.py, line 179, in publish File /usr/lib/python1.5/site-packages/ZPublisher/Publish.py, line 151, in publish File /usr/share/zope/lib/python/Products/SiteAccess/ChangeBehaviors.py, line 244, in traverse File /usr/lib/python1.5/site-packages/ZPublisher/HTTPResponse.py, line 551, in unauthorized Unauthorized: i have used zpasswd.py and set a username and password but can't get any further. I have read and re-read docs to no avail. Please help! Best regards, Vance Stith Boplicity - http://www.boplicity.com webmaster(a)boplicity.com 610.807.9724 (phone) - 610.867.4291 (fax)

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Re: [Zope] How to start developing in zope
by Firestar 31 Jul '00

31 Jul '00

------Original Message------ From: Kapil Thangavelu <kvthan(a)wm.edu> To: Firestar <theebh(a)mail.com> Sent: July 30, 2000 3:21:54 PM GMT Subject: Re: [Zope] How to start developing in zope acquistion is an integral part of zope and is pretty powerful for simplifying design and implementation. Kapil ------------------------------- Hi, thanks for your reply. Is acquisition similar to the concept of 'inheritance' in OOP? (or more?) I heard of this 'algebra of acquisition' written by someone...is it essential and where can i find it? TIA. regards, firestar ______________________________________________ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup

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Calender Tag & SQL caching
by Arjan Scherpenisse 31 Jul '00

31 Jul '00

Hi everybody, This is my first posting to this list. I have a website which will make use of a calender, with events on it stored in a MySQL database. Now, i wondered how to efficiently show this data from the database in the calender. I mean, not in a way that a sql query is made for each day on the calender (which would make up to 31 queries in the Calender Tag 'month' view...) So i wondered, is there some way to 'cache' the result of the SQL method, so that i can use just one query to fill up an entire month, for instance? regards, -- Arjan Scherpenisse acscherp(a)wins.uva.nl may the source be with you === http://www.gnu.org ===

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Python/Zope API
by Alexandre A. Rodioukov 31 Jul '00

31 Jul '00

Hello folks. I want to be able to render Zope objects from my python external method/product. Idea is to use it to render parent object. Here is code I came up so far with: def view(self, REQUEST): if self.meta_type == 'Folder': doc = self.aq_base.index_html(self, self.REQUEST) else: doc = self.aq_base(self, self.REQUEST) return doc It does return rendered parent object, but I have some questions and probably request for improvement ideas :) 1. The whole thing becomes broken with SiteAccess. Complains about premissions/PhysicalRoot (AFAIR) 2. Are there ways to improve it? For example I would love to know how you can check if you can actually render an object. (For example you can not render Control_Panel). Possible use for it (to make the whole idea a bit clearer) /index_html (some stuff in it) /view (above code in external method) /index_html/view returns rendered index_html doing some magic with HTML/whatever is in it (for example encrypts it with public key, strips down carriage returns/tabs/spaces etc...) In other words acts as a filter. Thanks for any advice, Regards, Simuran.

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