Hi Guys, Here are the latest entries to be entered into http://zope.faqts.com I'm sending this out now so list subscribers get an idea how the summaries work, if they haven't seen the python summaries I mentioned in the thread "[Zope] FAQ Wiki and What happend @ O'Reilly Conference" from earlier today. regards, Fiona Czuczman ## New Entries ################################################# ------------------------------------------------------------- installing Zope 2.2.0b4 via CVS http://www.faqts.com/knowledge-base/view.phtml/aid/4845 ------------------------------------------------------------- Fiona Czuczman T.J. Mannos I'd just like to announce that I've installed Zope 2.2.0b4 via CVS and done a complete run-through of my site. It seems to work flawlessly now, and I've gone ahead and installed it on my main port for a trial period. I hope to launch the site using the final version of 2.2.0 (so hurry up, developers!!) :) Anyway, upgrading wasn't without its problems, so let me share with you some tips that will help those in my situation upgrade more successfully. Note that I've skipped some steps, with the assumption that since your upgrading an existing Zope version, you already know how to install Zope. Directories cited: Original installation: /usr/Zope-2.1.6 Fresh install of 2.1.6 (for diff'ing changes I made in the python modules): /temp/Zope-2.1.6 New CVS install of Zope-2.2.0b4: /usr/local/Zope2 (I moved it to the /usr/local volume because I had more space there). Products installed: SQLSession SiteAccess TinyTable ZMySQLDA (your product list may vary) FIRST, I like to hack the source a lot. I have my own special comment tags, such as <!--#c ... --> instead of <dtml-comment> ... </dtml-comment>, and I have my own special <dtml-var> modifier, js_friendly, which quotes all special characters so I can use them in JavaScript code. On a tip from Shane, I started using CVS to download the Zope source code so that it would merge the changes made in each upgrades with the changes I've made to the source. (Do a search for "CVS" on Zope.org). However, this was my first CVS, so I still needed to bring over the changes I'd previously made. So....... cd /usr/local/Zope2 diff -rc /temp/Zope-2.1.6/lib/python /usr/Zope-2.1.6/lib/python
MyChanges.diff patch -p3 <MyChanges.diff
NOTE: Results may vary. By the way, in case you don't want to mess around with CVS (or you're like me and can't figure out how it works), the above commands should achieve the same effect, although you might get a few failed hunks and have to fix them manually. If you don't modify the Zope source, you can skip this step. SECOND, I had all my data, external methods, and installed products on my old installation. I didn't want to lose them. Now, don't be tempted to just copy all your Products over from the lib/python/Products folder. Some of them, such as SiteAccess and SQLSession, if you have them, WON'T WORK. (Furthermore, they'll break your installation, and you won't even be able to get to a management screen). Here's what you do: 1. Back up your new var directory (in case something goes terribly wrong) and copy the old data over. cd /usr/local/Zope2 mv var var.bak cp -R /usr/Zope-2.1.6/var . 2. Copy your external methods over. cp -R /usr/Zope-2.1.6/Extensions 3. Copy *some* (not all) of your Products over. cd lib/python/Products cp -R /usr/Zope-2.1.6/lib/python/Products/TinyTable . cp -R /usr/Zope-2.1.6/lib/python/Products/ZMySQLDA . 4. Start Zope (you may have to modify the startup script and the superuser password) and load the management interface. Delete all your SiteRoots and SQLSessions. You'll have to re-create them. 5. If you're like me, you created all your 2.1.6 objects using the superuser account. You can't do that in 2.2.0. So, go to your acl_users folder and create a new account having Manager and Owner privileges. 6. Download and install new versions of SQLSession, SiteAccess, and possibly ZMySQLDA, if you have it. (Be warned, though, you may have to re-create all of your database connections and SQL methods!) 7. Re-start Zope and log in as the new account you just created. Take ownership of your root directory. (Click "Ownership" tab, then "Take Ownership"). 8. Re-create your SQLSessions and SiteRoots. Check your database folder to make sure your SQL sessions are all intact. (If not, you have no sympathy from me. I had to re-create all 40 of mine when I tried beta 2). 9. Check for bugs -- I'm sure you'll find plenty! If you're getting a lot of Unauthorized errors using external methods, check all your external methods and make sure each class has the property "__allow_access_to_unprotected_subobjects__" set equal to "1". For instance, I had a bunch of simple objects created this way: class simpleClass: pass Under 2.2, I had to do it this way: class simpleClass: __allow_access_to_unprotected_subobjects__=1 pass THIRD, I'm waiting for the next release of Zope so that I can test out this CVS feature. I'm excited! Upgrading is such a pain, and I'm hoping CVS can help to automate that somewhat. I'll let you know how it goes. One very wise thing to do before every CVS checkout, though, is a complete backup of the Zope directory! After four failed upgrades (including the alpha), I don't want to take my chances. ------------------------------------------------------------- Example: To create a new object you must supply an addForm and a method to add the product. http://www.faqts.com/knowledge-base/view.phtml/aid/4846 ------------------------------------------------------------- Fiona Czuczman Andy Dawkins To create a new object you must supply an addForm and a method to add the product. e.g. manage_addMyProductForm = HTMLFile('MyProductAdd',globals()) def manage_addMyProduct(self, id, title='') """Adds the product""" self.setObject(id, MyProduct(id,title)) if REQUEST is not None: return self.manage_main(self, REQUEST) The product tabs are defined in the manage_options section of the product.py The order is important the first item in the list is called when you access the object from the management screens. The index_html is the default when accessed without the management screens. For example: manage_options = ( # the management options available {'label': 'Contents', 'action': 'manage_main'}, {'label': 'View', 'action': ''}, # defaults to index_html {'label': 'Properties', 'action': 'manage_propertiesForm'}, {'label': 'Security', 'action': 'manage_access'}, ) Download the boring product from zope.org It is a plain shell of an object that does nothing, but works. ------------------------------------------------------------- How can I deactivate HTML tags? http://www.faqts.com/knowledge-base/view.phtml/aid/4843 ------------------------------------------------------------- Fiona Czuczman Curtis Maloney <From the Zope Quick Reference> html_quote Convert characters that have special meaning in HTML to HTML character entities. ------------------------------------------------------------- When Saving changes from a version are the notes entered in the text box logged anywhere? http://www.faqts.com/knowledge-base/view.phtml/aid/4844 ------------------------------------------------------------- Fiona Czuczman Shane Hathaway Problem: When Saving changes from a version are the notes entered in the text box logged anywhere? It would be handy to use them for a regular CHANGES file. Solution: They appear in the Undo log. ------------------------------------------------------------- Using Zope, can I obtain the current exchange rates for the yen, mark, etc. at least once a day, preferrably every other 15 minutes? http://www.faqts.com/knowledge-base/view.phtml/aid/4842 ------------------------------------------------------------- Fiona Czuczman ethan mindlace fremen, Loren Stafford, Peter Be It depends on where the exchange rates are. If you get them from a database, you can make zope display the current rates. If you get them from a web page, you can use the client feature of zope to go snarf the web page and then extract what you need (hope you have permission :) If some other mechanism can write them to a file, you can suck them up with an external method whenever someone asks for it. ------- For doing things periodically there's the ZScheduler product (http://www.zope.org/Members/lstaffor/ZScheduler). The product is in it's alpha development stage, but if you employ it cautiously, you may find that it works for you. For getting the exchange-rate data, it depends on where it's coming from. Give us some more details and perhaps we can help better. You might want to use ZClient (see the How-To at http://www.zope.org/Members/lstaffor/ZClientMethod). There's also the SiteSummary product (http://www.zope.org/Members/edmundd/SiteSummary/). If you don't have too much traffic on your site, you can let the "first user of the day" be responsible for triggering new values to a db/file using the ZopeTime function. Something like this maybe: IF (SELECT day FROM currencytable == ZopeTime(day)): SHOW FROM DB ELSE: START THE COLLECTORS SCRIPT AND PUT IN THESE VALUES IN THE DB ------------------------------------------------------------- Is there a way I can grab the time value on my current system that Zope is running on with a MILLISECOND precision? http://www.faqts.com/knowledge-base/view.phtml/aid/4964 ------------------------------------------------------------- Fiona Czuczman Shane Hathaway Works on 2.2.0: <dtml-var expr="_.DateTime().millis()"> ------------------------------------------------------------- I'm running ZOPE with administrator privileges, when I try to create any objects I get an error message. http://www.faqts.com/knowledge-base/view.phtml/aid/4968 ------------------------------------------------------------- Fiona Czuczman waldemar Error Message: Zope Error Zope has encountered an error while publishing this resource. Error Type: SuperCannotOwn Error Value: Objects cannot be owned by the superuser Answer: Read the error. You have to create another user besides the administrator, then logon as the new user and you can create objects. ## Edited Entries ############################################## ------------------------------------------------------------- I want to update from Zope 2.1.6 to 2.2.0. Is there a way to copy my contents to the new version or do I have to start from the beginning? http://www.faqts.com/knowledge-base/view.phtml/aid/4778 ------------------------------------------------------------- Fiona Czuczman ethan mindlace fremen two ways: 1. Copy your Data.fs from the var directory of the old zope into the new one. Remember that you need to have the right products installed. 2. Switch to INSTANCE_HOME usage, as explicated by Evan: http://www.zope.org/Members/4am/instancehome I add the steps of symlinking the software folder to something like zope_soft. This has the advantage that any further releases of zope, to upgrade you simply unpack and compile zope, then link it's folder to zope_soft, restart zope, and (more-or-less) viola! things work. ------------------------------------------------------------- Does Zope have a version that runs well with Windows 2000 server? http://www.faqts.com/knowledge-base/view.phtml/aid/3518 ------------------------------------------------------------- Fiona Czuczman, Gijs Reulen Wolfgang Strobl I haven't had any difficulties running 2.1.6 on Windows 2000, so far. I tried it on both Win2000 prof US and Win2000 Server Ger. Currently, July 17th 2000, there are some problems with running Zope 2.20: the database connections have permession errors. ------------------------------------------------------------- Is there documented anywhere, simple instructions for creating a full site search by keyword? http://www.faqts.com/knowledge-base/view.phtml/aid/4776 ------------------------------------------------------------- Fiona Czuczman ethan mindlace fremen You want the ZCatalog Howto: http://www.zope.org/Documentation/How-To/ZCatalogTutorial ------------------------------------------------------------- Using dtml how can I cat the values of parameters, all strings, in a form to another parameter in the same form? http://www.faqts.com/knowledge-base/view.phtml/aid/4775 ------------------------------------------------------------- Fiona Czuczman Aaron Williamson I tested using this: <dtml-call "REQUEST.set('foo','this is a string')"> <dtml-call "REQUEST.set('bar','so is this')"> <dtml-call "REQUEST.set('foobar',foo+bar)"> and it worked, so I guess you could just use <dtml-call "REQUEST.set('all_params', param1+param2+etc...> ------------------------------------------------------------- How to access methods or queries in the parent's parent's parent's subfolder? http://www.faqts.com/knowledge-base/view.phtml/aid/4780 ------------------------------------------------------------- Fiona Czuczman Chris McDonough Problem: Root -----Folder1 ----------Sub1 --------------My_Qry ----------Sub2 ---------------otherfolder --------------------How_to_access_My_Qry_from_Sub1???? is there <dtml-var parent.parent..... type thing??? or do you have to call the parentobject method and assign it to some object before getting to it? Solution: Try, <dtml-var "Sub1.My_Qry()"> If you need to pass arguments to My_Qry: <dtml-var "Sub1.My_Qry(arg1='val1', arg2='val2')">