Prakash's Blog » Zope

Build your Google News SiteMap using Python,Zope

Prakash — Sun, 09 Mar 2008 15:46:02 +0000

Here is a small piece of code in Python – Zope using MySQL as the database. This will help you build a Google News Sitemap in 2 minutes.
# Import a standard function, and get the HTML request and response objects. from Products.PythonScripts.standard import html_quote request = container.REQUEST response = request.RESPONSE response.setHeader('Content-Type', 'text/xml') print '' print '' for item in context.sql.getNewsForToday(): print '' build_url = "http://www.yoursite.com/news/"+str(item.news_id)+".html?google" print '%s'%build_url print '' #date w3c format print '%s'%(DateTime(item.post_date).HTML4()) print '%s' %(item.keywords) print '' print '' print '' return printed

Zope Popularity in Technorati

Prakash — Fri, 30 Dec 2005 21:37:00 +0000

From today let me check the popularity of zope in web developer community ,how many are using in North and South American , I assume it is very popular in Europe,do a search in Technorati for Zope , please E-mail me if you use zope.

Tags: zope, lamp

6 Pitfalls

Prakash — Fri, 30 Dec 2005 18:24:00 +0000

My esteemed colleague invited me to participate in this blog, in the hopes that more new users don’t get burned by Zope.

I have been using Zope professionally for 3 years, and built a custom CMS on it for a technology publication (http://www.ebizq.net/). Zope allows you to rapidly (almost instantly) build a complex data-driven website, with nothing more than a web browser.

Now, the problem with instant website development is a lot like going out with your buddies in college. You may think you’re the most eloquent genius on the planet, but when you look at photos 2 years later, you wonder why exactly you decided to sleep in the bathtub with the giant stuffed gorilla.

My point is, that if you’re not careful with Zope you will get burned. However, the only way to learn how to be careful, is to get burned along the way. Severely.

So below are a few gotchas that I ran into face first along my travels with Zope. May these hard leaned lessons ease yours.

1) Ignore the Zope Book, don’t use DTML
All the examples are in DTML, which just stinks. Use Page Templates, they’re more understandable, and you can preview the basic idea in most WYSIWYG editors.

2) Always specify parameters to ZSQL Methods
call ZSQL methods by using python (tal:content=”python:context.mySQLmethod(user_id=request.get(’user_id’))” for example in page templates). Will save you hours when trying figure out why a SQL method returns the entire database (don’t do this: tal:content=”context/mySQLmethod”). Granted when you feel like you know what you’re doing, you will be tempted to take that shortcut, but it’s impossible to tell that that method expects a user_id, and you will forget at some point.

3) Pass objects to Page Templates via the options mechanism, don’t stuff everything into the REQUEST object
Prevent others from hunting through python scripts trying to find miscellaneous request.set methods. You will also forget at some point just what that page template expects.

4) Don’t bother with METAL
It’s just a headache, filling slots and defining them, plus it’s so much harder to read. It’s easier to be creative with acquisition:
/site index_html as a Page Template, use tal:content=”context/body”
/site/section body as either a Page Template or Python Script (but not DTML, see 1), then simply call www.site.com/section/ and your body will be rendered in the template.

5) Don’t put any site code in the root
It will only cause headaches as you will have a hard time trying to figure out why some goofball object is being acquired.

6) Put each site in it’s own folder under the root
/sitea/
/siteb/, etc… It will make things easier. If you have a few sites that share some common elements, make a folder and put both sites in there
/sites/sitea/
/sites/siteb/
If you have a method like showUsers, put that in /sites/

Guest Post by Jim Kuttergroup.com

Tags: zope

Zope Community Arise Awake and Advance

Prakash — Sun, 21 Aug 2005 17:13:00 +0000

I think my team has to write a open letter to Zope Community/Zope Corportaion, where is Zope is going to be in next two years, will zope be a legacy application framework. We have already started moving our web applications from zope after working on zope more than a year now, these are the things i feel zope corporation and zope community has to do.
1.Have a consistency on Zope Release Release some more books, Docs..
2.Zope corporation spend some money to advertise zope. No News or PR agecy speaks about Zope after 2003, oh don’t tell about CA.
3.So decide you have to draw a line between Plone and Zope, don’t confuse everyone.
4.Provide good Integration with other Versioning System .
5.Provide Good IDE break away from Browser Management Sytsem.

Lot more buddies. I’m still new to zope.. don’t kill it.

Tags: zope

Version Management – External Methods

Prakash — Fri, 01 Jul 2005 03:09:00 +0000

How to use Version Management, how does it work and if i create a external method can version management can really work. I think the guru’s of zope can answer this. let me forward this post to our guru, may he can help me out.

Tags: zope

Substring

Prakash — Tue, 01 Feb 2005 19:56:51 +0000

question= “Your string here”

print “” + question[1:150] +”….”

return printed

write the above code in the script(python) in zope

Tags: zope

ZPT] ZPT and ZSQL Methods

Prakash — Thu, 15 Jul 2004 20:49:18 +0000

This is easy,
create the following objects. You can fold them into two (one form and
one zsql method) but it is a bit easier to “see” what happens with 4:

- a ZSQL Method sqlGetNames (that *must* use dtml) with two parameters
firstname, lastname you use to construct a query.
- a form getusers_form with two input fields named
firstname, lastname and and action called getnames
- a python script named getnames that gets two parameters firstname,
lastname
- an outputform named showusers that presents the result in a table

Here is a sketch of the four objects:

#———————-
# sqlGetNames
# parameters :
# firstname. lastname
#———————-
select firstname. lastname from tblEmployee
where firstname. like +’%’
and lastname like + ‘%’;

#———————-
# getusers_form
#———————-

#———————-
# getnames
# parameters :
# firstname. lastname
#———————-
users = context.sqlGetNames(firstname=firstname, lastname=lastname)
return context.showusers(users=users)

#———————-
# show_form
#———————-

I have included ein “realworld” example where everyting is folded into a
single form (input, call to ZSQL Method and Output)
The used ZSQL Method and its parameters are paste in as comment.

Robert

Joao Paulo Liberato wrote:
> Hi everybody,
>
> I have a very basic question. I’m starting with Zope, and I’d like to
> grab some data from a MySQL database.
> The DA for MySQL was installed without any problem, and I could connect
> to my database.
> I was reading the Zope Book, chapter 18 – Relational Database
> Connectivity, and all examples were given using DTML.
> But I don’t want to use dtml. Hence, I’d like to know how can I use ZPT
> to call a ZSQL method, passing parameters to it, and how to process
> those parameters within the ZSQL Method.
> Can anyone provide me a basic example of how to do it?
>
> Thanks in advance,
>
> Joao Paulo.
> _______________________________________________
> ZPT mailing list
> ZPT@zope.org
> http://mail.zope.org/mailman/listinfo/zpt
>
>

Tags: zope

Misleading Users with your URL

Prakash — Fri, 09 Jul 2004 19:46:45 +0000

Advantage of using a python script is the best advantage i have seen in python with zope. I can write a script to like users , so it will be something like http://yoursite.com/users/ users is a python script when called it can return a zpt page

do something like this

request = ” ”

do your processing..

return container.here.usershtml()

where usershtml is the zpt file with html contents

Tags: zope

HTML FORMS : Error Handling Using ZPT and Python Scripting

Prakash — Sat, 15 May 2004 15:58:59 +0000

Here is the links
To catch erros from the form usign a script and giving back the error pages to the form back!!

ZPT Mailing List Mailing List

One More Link

Tags: zope

Zope dope Blog

Prakash — Sat, 15 May 2004 15:45:54 +0000

This Zope Blog will have list of problems and solutions for newbie developers who are using Zope Application Server.

Tags: zope