Re: [Zope-dev] Calling DTML methods from Python
Andrew Wilcox wrote: OK, I'll set up a DTML Quick Reference on the ZDP site right now! It's link is http://zdp.zope.org/portals/beginners/DQR We should be able to get this in place. Contributions sought! Do you want me to include my text? Where would it go? Yes. Hm, this is already rather specific. I'll paste it into a section (Topic) called Calling DTML. We may need to revise the topics afterwards, but that doesn't really matter now. Note that you can make your own topics (at least I think you can). Last night I couldn't finish it, but I thought the idea would be there as is. I'll try and work on it a bit today. thanks Rik ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Calling DTML methods from Python
I believe this is in the Collector... My guess is that no one has yet figured out a good way to make the client and namespace be passed in automatically. This may not be desirable anyhow, because there may be times when you want to change the client... I've actually done this once or twice. I guess there could be something like dtml-var fooMethod params="x,y,z". This is another one of those things that trips up newbies almost universally, so a good solution here could really help... Kevin - Original Message - From: "Chris Withers" [EMAIL PROTECTED] To: "Zope-Dev Mailing List" [EMAIL PROTECTED] Sent: Monday, May 29, 2000 12:32 PM Subject: Re: [Zope-dev] Calling DTML methods from Python On more of a ranting rather than a genuine question note, Why does this _horrible_ syntax for calling methods with parameters still have to be used? dtml-[whatever] "someFunc(_.None,_,[parameters])" *blech* Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Calling DTML methods from Python
Kevin Dangoor wrote: I believe this is in the Collector... My guess is that no one has yet figured out a good way to make the client and namespace be passed in automatically. This may not be desirable anyhow, because there may be times when you want to change the client... I've actually done this once or twice. Is it just me or is there a lot of confusion between the terms namespace, self, client, and the REQUEST object (which, unlike it's name implies, seems to contain a lot more than stuff relating to the HTTP request, like the RESPONSE object, for example ;-) Perhaps this could be shaken down and then, a first for the Zope community I believe ;-), _documented_ somewhere!!! cheers, Chris PS: what is the client anyway? what exactly is in _? why is the RESPONSE object an attribute of the REQUEST object?! ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Calling DTML methods from Python
Is it just me or is there a lot of confusion between the terms namespace, self, client, and the REQUEST object (which, unlike it's name implies, seems to contain a lot more than stuff relating to the HTTP request, like the RESPONSE object, for example ;-) Perhaps this could be shaken down and then, a first for the Zope community I believe ;-), _documented_ somewhere!!! Well, as far as I've been able to figure out. But everybody correct me where I get it wrong: When a DTML Document is called from the web, it gets itself as the client argument and a namespace as the second argument. Note that it gets itself twice: first as the standard Python object oriented "self" argument and then as the client argument. I seem to recall there's some magic in there where the the object is wrapped in an acquisition class so that it can do a self.REQUEST, but I'm not sure. Any DTML methods called by the first object get None passed in as the client argument. Importantly, DTML methods do not lookup variables in themselves (i.e. from the Python "self"), but only from the namespace. The original object has been added to the namespace at this point so these called methods are able to access things. An example would be if you had a DTML method called "doit" sitting in a folder next to "standard_html_header". Because doit acquires from its container, you could say "doit.standard_html_header" from Python because standard_html_header is a property of the containing folder. But using "dtml-var standard_html_header" from inside doit only works if standard_html_header is available in the namespace. External methods add more fun :-). As noted in the documentation, the enclosing folder will be passed in automatically if you call the first argument "self" (and you pass in yourself one fewer argument than the function calls for). Note this is NOT the standard python object oriented "self" argument, which would be the external method sitting in the ZODB if anything, but the enclosing folder. You do have to call it "self" or you don't get anything. The "self" argument is able to acquire REQUEST so you can say "self.REQUEST", but you don't get a namespace automatically. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Calling DTML methods from Python
Is it just me or is there a lot of confusion between the terms namespace, self, client, and the REQUEST object (which, unlike it's name implies, seems to contain a lot more than stuff relating to the HTTP request, like the RESPONSE object, for example ;-) Perhaps this could be shaken down and then, a first for the Zope community I believe ;-), _documented_ somewhere!!! OK, I'll set up a DTML Quick Reference on the ZDP site right now! It's link is http://zdp.zope.org/portals/beginners/DQR We should be able to get this in place. Contributions sought! Rik ___ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )
