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Return code for Authentication error
by Sébastien VINOT 09 Dec '06

09 Dec '06

Hello, I try some tests with my zope (2.9.4-final on Debian) and Python about accessing private pages. I'm using the examples on page http://www.voidspace.org.uk/python/articles/authentication.shtml with the HTTPBasicAuthentication. Unfortunately that does not work. I set the View Permission to "Member" to one page. Of course I cannot access it if I'm not authenticated. I use the code below (extracted from the URL I gave above) but I only receive the "Please login page". How can I do ? The code : import urllib2 theurl = 'www.someserver.com/toplevelurl/somepage.htm' protocol = 'http://' username = 'johnny' password = 'XXXXXX' # a great password passman = urllib2.HTTPPasswordMgrWithDefaultRealm() # this creates a password manager passman.add_password(None, theurl, username, password) # because we have put None at the start it will always # use this username/password combination for urls # for which `theurl` is a super-url authhandler = urllib2.HTTPBasicAuthHandler(passman) # create the AuthHandler opener = urllib2.build_opener(authhandler) urllib2.install_opener(opener) # All calls to urllib2.urlopen will now use our handler # Make sure not to include the protocol in with the URL, or # HTTPPasswordMgrWithDefaultRealm will be very confused. # You must (of course) use it when fetching the page though. pagehandle = urllib2.urlopen(protocol + theurl) # authentication is now handled automatically for us

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Re: Why doesn't this work?
by Javier Subervi 08 Dec '06

08 Dec '06

From: Andreas Jung <lists@...108> >You want to generate HTML as a result? You want to use to write ZPT! You want >to call external functionalities? You create an external method and call it *from* >your ZPT. > >That's the way to go. okey dokey. Thanks, Javier ____________________________________________________________________________________ Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.

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Re: Why doesn't this work?
by Javier Subervi 08 Dec '06

08 Dec '06

2 From: Andreas Jung <lists@...108> >> - --On 8. Dezember 2006 10:38:25 -0800 Javier Subervi >> <javier_subervi@...112> wrote: >> >>> <html> >>> >>> But when I try to make it work in an External Method like this: >>> >>> stuff = '<html>\n' >>> stuff = stuff + '<body>\n' >>> stuff = stuff + '<table width="100%" align="center" class="text" >>> border="3" cellspacing="5" bgcolor="#E694FE" bordercolor="#D24BFA" >>> bordercolorlight="#DD77FB" bordercolordark="#C512FA"><tr><td>\n' stuff >>> = stuff + '<span >>> metal:use-macro="here/en-us/Quotes/10/macros/quote"></span><br />\n' >>> stuff = stuff + '<div align="center"><span class="text">\n' >>> stuff = stuff + ' <a href="All_Quotes.pt" target="_top"><b>Show me all >>> the quotes!</b></a>\n' stuff = stuff + '</span></div>\n' >>> stuff = stuff + '</td></tr></table>\n' >>> stuff = stuff + '</body>\n' >>> stuff = stuff + '<html>\n' >> >> An external method is not a ZPT. The external method returns just HTML. >> Why and how should Zope treat interpret *something* inside the HTML >> generated by the external method as macro? If you want a macro, the >> called object has to be a ZPT - nothing else. >> >> - -aj > >If you want something different: you must instantiate a Pagetemplate inside >your external method, add the content through the related API and let the >pagetemplate render the content. But there is usually no need for such an >approach. Somehow you're trying to do something the wrong way round. What I'm trying to do is change the line in question to this: stuff = stuff + '<span metal:use-macro="here/en-us/Quotes/' + `randrange(1, len(self.objectValues()), 1)` + '/macros/quote" ></span><br />\n' So it generates a random number. Now, that's the "easy" scenario, and for that I originally had just a Page Template. However, next up I need to be able to accommodate another folder which requires: 1) walking the folder, opening each subfolder 2) creating a tuple of the folder (or numerical representation) plus the number of the quote 3) randomly choosing a quote from all the subfolders Ideas? Perhaps I should instantiate a page template in the ext. method. How would I do that? TIA, Javier ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com

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Why doesnt' this work?
by Javier Subervi 08 Dec '06

08 Dec '06

Hello; I have this code that works fine in a Page Template: <html> <body> <table width="100%" align="center" class="text" border="3" cellspacing="5" bgcolor="#E694FE" bordercolor="#D24BFA" bordercolorlight="#DD77FB" bordercolordark="#C512FA"><tr><td> <span metal:use-macro="here/en-us/Quotes/10/macros/quote"></span><br /> <div align="center"><span class="text"> <a href="All_Quotes.pt" target="_top"><b>Show me all the quotes!</b></a> </span></div> </td></tr></table> </body> <html> But when I try to make it work in an External Method like this: stuff = '<html>\n' stuff = stuff + '<body>\n' stuff = stuff + '<table width="100%" align="center" class="text" border="3" cellspacing="5" bgcolor="#E694FE" bordercolor="#D24BFA" bordercolorlight="#DD77FB" bordercolordark="#C512FA"><tr><td>\n' stuff = stuff + '<span metal:use-macro="here/en-us/Quotes/10/macros/quote"></span><br />\n' stuff = stuff + '<div align="center"><span class="text">\n' stuff = stuff + ' <a href="All_Quotes.pt" target="_top"><b>Show me all the quotes!</b></a>\n' stuff = stuff + '</span></div>\n' stuff = stuff + '</td></tr></table>\n' stuff = stuff + '</body>\n' stuff = stuff + '<html>\n' it doesn't show the quote from this line: <span metal:use-macro="here/en-us/Quotes/10/macros/quote"></span><br /> but it shows the rest of the table and the link at the end. Why is that? Have I lost the context along the way? How do I preseve the context going into an External Method? TIA, Javier ____________________________________________________________________________________ Need a quick answer? Get one in minutes from people who know. Ask your question on www.Answers.yahoo.com

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Re: [Zope] Simple Question
by Nancy Donnelly 08 Dec '06

08 Dec '06

112----- Original Message ---- From: Jonathan <dev101(a)magma.ca> DIV { MARGIN:0px;} >A single 'request' from a user can be handled by multiple python scripts (ie. you get a >user request, you invoke script A, script A calls script B, script B calls script C...) and all >of the scripts will have access to the same REQUEST data (ie. REQUEST will remain >available until you send a response back to the user). Hmmm. I have a problem. The following code works perfectly with the system I have set up on about 400 pages...something I clearly wouldn't want to re-edit...*except* for the 2nd line, which calls a script. Now, that second line *by itself* works just fine!! I've tested both the above scenarios. But in combination, it doesn't work. Why? <tal:block metal:define-macro="main"> <div tal:replace="structure here/testing" /> <div tal:condition="here/Quotes | nothing" tal:content="structure here/s/getRandomQuote" /> <table width="100%" border="0" cellspacing="0" cellpadding="0" background="images/header_bg.jpg" class=header> <tr> <td width="76"><img src="images/header_left.jpg" alt="" width="76" height="37"></td> <td align="right"><tal:block metal:define-slot="headline"><span tal:replace="template/title_or_id" /></tal:block></td> <td width="76"><img src="images/header_right.jpg" alt="" width="76" height="37"></td> </tr> </table> <table width="95%" border="0" cellspacing="0" cellpadding="0" class=main align="center"> <tr> <td><br>  <tal:block metal:define-slot="text"></tal:block>  </td> </tr> <tr> <td> <br /> <br/>  <tal:block metal:define-slot="footer"> <span metal:use-macro="here/templates/frame_footer/macros/main"></span> </tal:block>  </td> </tr> </table> </tal:block> TIA, Nancy ____________________________________________________________________________________ Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.

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Re: [Zope] Simple Question
by Nancy Donnelly 08 Dec '06

08 Dec '06

7170----- Original Message ---- From: Jonathan <dev101(a)magma.ca> Here is the page that I need to quote, and this is why I need triple quotes: print """ <html> <body> <tal:block metal:define-macro="main"> <tal:content metal:use-macro="here/templates/protect/macros/strong"></tal:content> <div tal:condition="here/Quotes | nothing" tal:content="structure here/s/getRandomQuote" /> <table width="100%" border="0" cellspacing="0" cellpadding="0" background="images/header_bg.jpg" class=header> <tr> <td width="76"><img src="images/header_left.jpg" alt="" width="76" height="37"></td> <td align="right"><tal:block metal:define-slot="headline"><span tal:replace="template/title_or_id" /></tal:block></td> <td width="76"><img src="images/header_right.jpg" alt="" width="76" height="37"></td> </tr> </table> <table width="95%" border="0" cellspacing="0" cellpadding="0" class=main align="center"> <tr> <td><br>  <tal:block metal:define-slot="text"></tal:block>  </td> </tr> <tr> <td> <br /> <br/>  <tal:block metal:define-slot="footer"> <span metal:use-macro="here/templates/frame_footer/macros/main"></span> </tal:block>  </td> </tr> </table> </tal:block> </body> </html> """ return printed ____________________________________________________________________________________ Want to start your own business? Learn how on Yahoo! Small Business. http://smallbusiness.yahoo.com/r-index

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Re: [Zope] Simple Question
by Nancy Donnelly 07 Dec '06

07 Dec '06

7373----- Original Message ---- From: Maciej Wisniowski <maciej.wisniowski(a)coig.katowice.pl> All of that worked, but so much for being "simple". Upon re-analysis, what I need to do is call a Script (Python) from within a page template but still retain the container.REQUEST from the previous call. That is, page template X calls page template Y which calls Script (Python) Z and Z needs the container.REQUEST of X. Is that possible? TIA, Nancy ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com

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Re: [Zope] Simple Question
by Nancy Donnelly 07 Dec '06

07 Dec '06

----- Original Message ---- From: Jonathan <dev101(a)magma.ca> DIV { MARGIN:0px;} >you should just be able to do: > >print "<html><body>Hello World</body></html>" >return printed Um, yes, but it's a little more complicated than just one line :) How do I do it with triple quote? TIA, Nancy ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com

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Zope/Cache/Memory
by kevin7kal 07 Dec '06

07 Dec '06

I have a database that is just under 200K objects with plans that it will grow larger. The objects are created by using another object with methods that read files and create the objects from the data in the files. When creating the objects, I find I have to manually clear the cache or else zope eventually crashes with an out of memory error. There are 4GB of ram on the server. The same issue arises when I catalog the objects. I am trying maintain as much speed as possible, so I do not want to catalog until the end of the import. Is there a way to programmatically clear the cache during a large indexing to avoid out of memory errors? I am using zeo storages and setting the cache on those to a smaller size has no real effect in this case, because the cache seems to outgrow its defined size when it is very active. Is zope even good for this? Should I consider another database? It still seems that cataloging is an issue whether the objects are stored in the zodb or elsewhere. -Kevin

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changing the meta_type for python product class
by Dragos Chirila 07 Dec '06

07 Dec '06

Hi everybody, I am stuck with the following problem for witch I don't have a solution. I would appreciate it very much if you could help me with it. I have a very simple Python product with only one class that extends Folder. The name of the product is MyClass and the MyClass.py module is below: from OFS.Folder import Folder from Products.PageTemplates.PageTemplateFile import PageTemplateFile from constants import * manage_addMyClass_html = PageTemplateFile('zpt/myclass_manage_add', globals()) def manage_addMyClass(self, id, title='', REQUEST=None): """ """ ob = MyClass(id, title) self._setObject(id, ob) if REQUEST: return self.manage_main(self, REQUEST, update_menu=1) class MyClass(Folder): """ """ meta_type = METATYPE_MYCLASS def __init__(self, id, title): #constructor self.id = id self.title = title And the constants.py module contains: import Globals MYCLASS_PRODUCT_NAME = 'MyClass' MYCLASS_PRODUCT_PATH = Globals.package_home(globals()) METATYPE_MYCLASS = 'My Class' PERMISSION_ADD_MYCLASS = 'MyClass - Add Components' In the ROOT folder I create the following python script (listing): for x in container.objectValues(['My Class']): print '[%s] - [%s]' % (x.meta_type, x.absolute_url()) return printed Then I follow the steps: 1. Create an instance with the id 'instance1' (in the drop down I have 'My Class'). 2. I run the 'listing' script and I get: [My Class] - [http://10.0.0.37:8080/instance1] 3. I change the constant METATYPE_MYCLASS into 'My New Class' 4. I run the 'listing' script and I get: [My New Class] - [http://10.0.0.37:8080/instance1] 5. I create a second instance with the id 'instance2' (in the drop down I have 'My New Class'). 6. I run the 'listing' script and I get: [My New Class] - [http://10.0.0.37:8080/instance1] 7. I modify the python script by changing the 'My Class' with 'My New Class' 8. I run the 'listing' script and I get: [My New Class] - [http://10.0.0.37:8080/instance2] In the ZMI for both instances the meta_type 'My New Class' is displayed. I don't understand why the first instance is not displayed after I change the meta_type value in the python Product. Moreover, if I try to explicit update the meta_type property for the first instance to the new value, the result is the same. What I am trying to accomplish is to be able to change the meta_type value and this to work (e.g. with no effect on python scripts like 'listing') Thank you very much, Dragos

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