[Zope-dev] ZWikiZC comments
Two substantive comments, and some editorial ones. You write that you are thinking of different schemes for generating paths and ids. I suggest one of the things you consider is whether your scheme will work if someone cuts the ZWikiZC and pastes it somewhere else in the tree. I'm not sufficiently versed in the different methods you discussed to understand their implications--they seem to involve yet more undocumented interfaces in Zope. Second, I think the facility for email notification of changes is really interesting. It seems to me that a problem with the Wiki concept (for some uses) is that they are very difficult to monitor for changes. Sending email, perhaps combined with diff, could help with this. Editorial comments: "Summary" is spelled with an "a" (not summery). "Product" is spelled with a "c" (not produkt). Since these words are prominent in the documentation, and at least one (summary) is to be a critical method, it would be good to clean this up. The "!" in the paths baffled me (e.g., "!WikiPage"). Why Catalogs distinguish metadata from indices also eludes me. It should be explained in the Z/Catalog writeup, but since it's not, it was there to bother me while I read your description. It's hazardous to claim a performance advantage without benchmarks. ___ 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 )
[Zope-dev] Why use apply(foo.__call__, ..)?
In looking over the code for ZWiki/ZC, I see a lot of places with the
following construct:
apply(foo.__call__, some, arguments)
Why not just say
foo(some, arguments)?
Examples of the construct from ZWikiPage.py:
apply(self.aq_parent.standard_wiki_page.__call__,
(None, REQUEST, REQUEST.RESPONSE))
or
apply(DTMLDocument.__call__,(self, self.aq_parent,
REQUEST, REQUEST.RESPONSE))
[OK, in this case the question technically is why use apply(foo.__call__,
(a, b, c)) instead of foo(a,b,c)? Hmmm...
x.foo(a, b, c) - foo.__call__(x, a, b, c).]
These requests are mostly, if not entirely, directed at
WikiPages/Headers/etc, whose definition is, in part,
class ZWikiPage(DTMLDocument): #, CatalogAware):
def __call__(self, client=None, REQUEST={}, RESPONSE=None, **kw):
"""Render a zwiki page, with standard header footer
"""
I thought the use of keyword argument dictionaries in apply might explain
this, but, as the two opening examples show, not all cases have
keywords. Second, even if they do one could say
aDocument(self, REQUEST, REQUEST.RESPONSE, kw).
I understand from Johan that this is "inherited" code (in the non OO
sense), so I thought I'd throw this out as a general question. Is there
some subtlety of the interaction of Zope (acquisition, perhaps, or
extension classes in general) and python that makes foo(x) and
foo.__call__(x) have different meanings?
Is it something about standard_zwiki_page, which I notice is not a regular
python variable?
I don't need the answer to this to do something; I'm just trying to
understand how things work.
Thanks.
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[Zope-dev] Object references from dtml
I have a log composed of sublogs, and so on. I would like for people to be able to see some kind of summary (e.g., short versions of the logs down n levels) on the screen and then click on one of interest and see a fuller display of it. Is there a good way to do this using dtml? I've thought of two approaches. The "standard" zope way seems to be to make each log folderish, and give each entry an id. Then I can embed the address in the html. The problem with this is that I would have to make up the id's and add extra machinery that the logs don't really need. I'm leaning toward a second approach, of getting an object id and putting it in the html. This also raises some issue. * Will the id be stable in the face of the db potentially dematerializing objects underneath? * If I use a persistent id (_p_oid, I think), will that be stable? * (Also, I'll need to be sure everything has persisted, but I think I can do that by forcing a transaction end before getting the _p_oid). * Can I map from object id back to object? (_p_jar.something or other) * Will this be robust across database changes (minimally, from ZODB to ZEO)? * Will the object id consist of characters which can be embedded easily in html? ___ 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] Problems with offline MS IE 5
Applying W2K SP1 seemed to fix up this problem. However, the original problem may not have occurred instantly, so perhaps it takes a bit more to bring it out. At any rate, I also upgraded to IE 5.5, so I hope that will be the end of the bad caching behavior. Thanks, Jens, for your response. At 11:09 PM 10/19/2000, Ross Boylan wrote: I recently tried doing some Zope development on a laptop and ran into a problem: when I updated a product the updates did not "take." In particular, when I edited the text in a .dtml file and restarted Zope, I still saw the old text when I got to the appropriate point (the file was wrapped in an HTMLFile() and used for creating a new instance of one of the products in the package). I think I checked all of the following: * the file was getting updated * all instances of explorer were shut down * MSIE options set to "Check for newer version of stored page on every visit to the page" A notable peculiarity was that whenever I tried to access my local zope, I would get a "you are offline, do you wish to go online" message (I even used localhost as the machine name!). I would say yes, it would say it couldn't connect and ask if I wanted to try again. I said yes, but then I ran into the problems described above. Zope 2.2.2 on MS W2K with MS IE 5.0. Does this ring any bells with anyone? Is it an IE problem? a Zope problem? an interaction? ___ 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 )
[Zope-dev] Appropriateness of using ZODB transactions to sync databases
I am working on a membership application for a voluntary organization. The database may be updated either by the national office or local chapters. For security, convenience, and hosting reasons it seems best that locals work off their own copy of the database. Periodically changes will need to be syncronized, in both directions. I know that ZODB logs transactions. Is exchanging transactions a reasonable way to accomplish the syncronization? If so, exactly how do I go about grabbing them (it would be all since date x) and then replaying them? Thanks. ___ 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 )
[Zope-dev] Establishing root objects in ZODB under Zope
I have some data that will not naturally live as an item in a folder. If I'm using Zope, how do I establish a root for it? The ZODB docs talk about how to handle a free-standing database, but I don't see info about how to use the one that Zope has already set up. I recall there's some way to get a handle to the open database, but I don't recall exactly what. Can anybody help me out? If I use a class variable, will that be persisted automatically, e.g. class MyManager(Persistence.Persistent): MyClassVariable = SomePersistentClass() . ? (Actually, I'm not sure if it matters whether MyManager is a subclass of Persistent). Or, if it is not automatically persistent, is there anything I can do to make it persistent so that it will obey the transaction boundaries coming from web requests? Final question, which is distinct from the root objects issue: if I use Zope's Persistent List, will that avoid the problem of faulting in the whole list if I don't need it? I am looking for a good way to keep a record of transactions. ZODB's raw transaction recording is probably not quite right since it has the wrong granularity, it mixes a lot of unrelated transactions (it's only some I want), and I think it can get zapped if I do various database compactions and cleanups. Thanks. ___ 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 )
[Zope-dev] Re: Establishing root objects in ZODB under Zope
At 09:37 PM 1/23/02 -0800, Ross Boylan wrote: I have some data that will not naturally live as an item in a folder. If I'm using Zope, how do I establish a root for it? The ZODB docs talk about how to handle a free-standing database, but I don't see info about how to use the one that Zope has already set up. I recall there's some way to get a handle to the open database, but I don't recall exactly what. Can anybody help me out? If I use a class variable, will that be persisted automatically, e.g. class MyManager(Persistence.Persistent): MyClassVariable = SomePersistentClass() . ? (Actually, I'm not sure if it matters whether MyManager is a subclass of Persistent). Or, if it is not automatically persistent, is there anything I can do to make it persistent so that it will obey the transaction boundaries coming from web requests? I just realized that I can hang the persistent object off the item or folder that is my product. I'm still curious what the other options are. Final question, which is distinct from the root objects issue: if I use Zope's Persistent List, will that avoid the problem of faulting in the whole list if I don't need it? I am looking for a good way to keep a record of transactions. ZODB's raw transaction recording is probably not quite right since it has the wrong granularity, it mixes a lot of unrelated transactions (it's only some I want), and I think it can get zapped if I do various database compactions and cleanups. Thanks. ___ 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 )
[Zope-dev] [Partial Solution] Re: Establishing root objects in ZODB underZope
At 09:37 PM 1/23/02 -0800, Ross Boylan wrote: I have some data that will not naturally live as an item in a folder. If I'm using Zope, how do I establish a root for it? The ZODB docs talk about how to handle a free-standing database, but I don't see info about how to use the one that Zope has already set up. I recall there's some way to get a handle to the open database, but I don't recall exactly what. Can anybody help me out? Continuing to talk to myself I finally found some old notes. For the record (unless things have changed) conn = aPersistentObject._p_jar will retrieve the connection. One can then get the root with conn.root() Thanks to Jim Fulton who originally explained this to me. I'm still wondering about class variables being persistent and the efficiency of PersistentList, if anyone has any comments. If I use a class variable, will that be persisted automatically, e.g. class MyManager(Persistence.Persistent): MyClassVariable = SomePersistentClass() . ? (Actually, I'm not sure if it matters whether MyManager is a subclass of Persistent). Or, if it is not automatically persistent, is there anything I can do to make it persistent so that it will obey the transaction boundaries coming from web requests? Final question, which is distinct from the root objects issue: if I use Zope's Persistent List, will that avoid the problem of faulting in the whole list if I don't need it? I am looking for a good way to keep a record of transactions. ZODB's raw transaction recording is probably not quite right since it has the wrong granularity, it mixes a lot of unrelated transactions (it's only some I want), and I think it can get zapped if I do various database compactions and cleanups. Thanks. ___ 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 ) ___ 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 )
[Zope-dev] Adding Items to Object Manager and Folders
The Zope Developer's Guide and the API docs (Zope 2.5) present different stories about how to add things to object managers. I don't really follow what the API stuff is doing. This is a request for clarification. Devguide says do def addFunction(dispatcher, id): Create object and add to self p = SomeProduct(id) dispatcher.Destination()._setObject(id, p) This makes sense, though, as commented at http://www.zope.org//Members/michel/Projects/Interfaces/ObjectManager, it relies on a private, undocumented method. addFunction is in outer scope of a module, and is hooked up wtih various calls in ___init__.py. On the other hand, the ObjectManager API says to do self.manage_addProduct['OFSP'].manage_addFolder(id, title). First, what scope should that be done in? Second, this seems to create one product (OFSP) and then add a folder to it, so that it creates two, nested products. The API for Folder mentions manage_addFolder as a constructor, but again the scope is unclear to me. Presumably it needs to know what to add it to, but that is not passed in. Finally, the use of id in two places in the first code snippet (one apparently associated with the container, the other with the object) seems like an invitation to trouble. Why is it done that way? One reason I want to know this is that I'm considering having a container that would automatically label (or set id) of its contents (e.g., 'a' is first, 'b' is second). Thanks for any light you can shed. ___ 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 )
[Zope-dev] Nesting Forms
I have a product with a number of classes that have subclasses. It seems natural to make the screens for the subclasses by extending those of the superclass. Can anyone suggest a good way to do that? The naive approach is that I have a manage_edit_A.dtml that gives a management screen for A. If B subclasses A, I create manage_edit_B.dtml by copying from the first file and then fiddling with it. Obviously, it would be desirable for a change in A to only require changing a single file. I would prefer a more elegant approach. Perhaps I can define some method in A that the dtml will reference, and then B can override the method to add some extra stuff (the method would return a DTML snippet). First, I'm not exactly sure how to pick up the method from the DTML. Second, I'm not sure if this is the best solution. For one thing, I would prefer to keep all my dtml in separate files, rather than defining it into my methods. Any suggestions? P.S. I'd like to thank Toby Dickenson, Casey Duncan, and R. David Murray for their very helpful responses to my previous question. ___ 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] Nesting Forms
On Thu, Jul 18, 2002 at 02:18:43PM -0400, Casey Duncan wrote: On Thursday 18 July 2002 02:06 pm, Ross Boylan wrote: Is there a way to get inheritance, so that, for example, class C(B): sect1 = DTMLFile(CSect2,globals())+B.sect1(self)? I don't think that syntax will work, but perhaps you see what I'm driving at--I want to include all the previous stuff. Please explain what you mean by include. + to me implies append, surely not what you were after. Perhaps a specific use case would make this clear. -Casey I think append would be OK. In most obvious case, the screen for A looks like foobar xxx And for B it would be foobar xxx zzz aaa And then for C foobar xxx zzz aaa qqq And then if I extend A by adding some more data or info on the screen foobar new stuff xxx C ends up looking like foobar new stuff xxx zzz aaa qqq ___ 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] Nesting Forms
On Thu, Jul 18, 2002 at 08:41:02PM +0200, Dieter Maurer wrote:
Ross Boylan writes:
...
I would prefer a more elegant approach. Perhaps I can define some
method in A that the dtml will reference, and then B can override the
method to add some extra stuff (the method would return a DTML
snippet).
That sounds good. It is how the ZMI works...
ZMI = Zope Management Interface (i.e., in the core app), or is this
something else? At any rate, I'm not sure what you're referring to,
or where to look.
First, I'm not exactly sure how to pick up the method from the DTML.
There are two cases:
* view of an existing object
then the object is the client of the primary view.
Make all you snippets attributes of the object
and you can simply access them by name.
The ZMI does this. If necessary, look how it does.
The problem isn't just accessing them, but combining them. Say C is a
subclass of B is a subclass of A. Each subclass has the entire user
interface of its base class (aka superclass) and some extra stuff.
Either each class implements its novel stuff with a unique name. In
that case, I still have to make a separate dtml file for each,
referencing the appropriate names (though your suggestion below helps
on that).
Or each has the same name. Then the problem is how to get the
subclasses method to return its unique stuff plus everything in its
base class. For vanilla methods that's not a big deal, but if each is
a DTMLFile, I don't think it will work. More about that at the very
bottom.
* object creation form
That's much more difficult. ZMI does not reuse fragments for
this case.
There is a partial solution for DTMLFiles, but it is not nice
and restricted to DTML.
DTMLFile constructors accept a dictionary with default
name bindings. This way, you can customize your
DTMLFile with different bindings according to context,
e.g.
addAForm= DTMLFile('dtml/addForm', globals(),
comp1= AComp1
comp2= AComp2
...)
addBForm= DTMLFile('dtml/addForm', globals(),
comp1= BComp1
comp2= BComp2
...)
This suggests one semi-refined strategy: the file defines the maximal
interface, and then parts of it are guarded by dtml-if ... tests on these
extra variables I pass in. I could even pass the class in, but I
suppose if I try to do issubclass(PassedInClass, MyApplicationClass)
in the dtml-if I will find that I lack security to access
PassedInClass, issubclass, or MyApplicationClass.
Second, I'm not sure if this is the best solution. For one thing, I
would prefer to keep all my dtml in separate files, rather than
defining it into my methods.
You can have separate files and do something like:
class YourProduct:
mySnippet= DTMLFile('dtml/mySnippetFile',globals())
The problem comes if I stick the different interface segments in
different files, so A.dtml has the user interface for A and B.dtml has
just the added interface for B, a subclass of A. But I want the user
interface for B to be the combination of the A and B parts.
Dieter
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[Zope-dev] Extension class and __init__
I had the bright idea of defining a mixin class whose methods I thought I could use in my regular Zope product classes: class AMixin: def __init__(self): blah, blah blah class B(AMixin, Persistent, Folder, ): def __init__(self): # do some of my own stuff AMixin.__init__(self) This fails with the warning (as I recall) that the unbound method AMixin.__init__ needs to be called with an instance as its first argument. (I've stripped the example down to give what I think are the essentials). self in the context of B is an Extension class, and I'm guessing this is making AMixin unhappy because it's not. I assume I'll have the same problem with other methods that I attempt to access using AMixin.foo(self). Can anyone confirm this diagnosis? And what's the best solution? I have redefined things class AMixin: def _mixin_init(self): #stuff class B(AMixin, .): def __init__(self): #my own stuff self._mixin_init(self) and this seems to work, but I wonder if there's a way to get the classes to play together better (maybe class AMixin(ExtensionClass):? though since ExtensionClass is a type I guess that's not exactly it). This was after already discovering that isinstance doesn't work with ExtensionClass (which I see confirmed on the list, along with the fact that ExtensionClass generally has a lot of rough spots and may be on the way out). This is with Zope 2.5.1. ___ 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 )
[Zope-dev] Refresh trashes acquisition
I find that when I refresh my product it destroys some of the containment relationships. Things start failing, and as far as I can tell the only recovery is to completely rebuild the object. This is a big problem, and if anyone could explain what is going on and how to avoid it I would appreciate it. Here is the result of aq_chain before the refresh: [RankQuestion instance at 8dd5620, OriginalSuborder instance at 8c9f8d8, EMailBallot instance at 8dfc870, __FactoryDispatcher__ instance at 8e73770, ProductDispatcher instance at 83f0618, Folder instance at 8d5733 and after [RankQuestion instance at 8dee2d0] Interestingly, and object inside this retained some context: Before: [RandomSuborder instance at 8df6248, RankQuestion instance at 8dd5620, OriginalSuborder instance at 8c9f8d8, EMailBallot instance at 8dfc870, __FactoryDispatcher__ instance at 8e73770, ProductDispatcher instance at 83f0618, Folder instance at 8d57330, Application instance at 8e44ae0, RequestContainer instance at 8ed53e8] After: [RandomSuborder instance at 8be7128, RankQuestion instance at 8dee2d0] Notice that the new RandomSuborder instance (new, judging by the address, though it should be the same object) points to the new RankQuestion. Unfortunately, I need to go a little further than that to get the variable I'm looking for :(. It may be relevant that I am explicitly wrapping objects uses a.__of__(b). I did this because I thought things weren't being wrapped at all, but the results above show the problem is different: the wrappers are lost on refresh. The refresh changes nothing structural, just some method code. One thought that occurred to me is that it is not the changes to my product classes that is causing the trouble, but the inclusion of some of the items higher up the chain. ___ 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 )
[Zope-dev] Re: Refresh trashes acquisition
On Thu, Jul 25, 2002 at 12:09:35PM -0700, Gary Speer wrote: Dear Ross - I strongly encourage you to switch to the [EMAIL PROTECTED] mailing list as this one is dedicated to next-generation product enhancement as opposed to peer user assistance. I thought this list was for developers, including product developers, while the other was for zope users. Isn't that the case? The approach you are taking seems a bit convoluted and I, for one, do not understand the business/project objectives reason to construct the objects as you do and create the acquisition cvhallenge you hope to solve. Perhaps you can elaborate on the goal you hope to accomplish so others can suggest the better tools and object containment structure to use. It seems earlier design decisions have taken you to solving issues that might not exist with an alternative, more-naturally-zope-like approach. Gary I suspect you are right that I may be going about this in an un-Zope like way, so let me describe the goals at a slightly higher level. My immediate goal is to be able to do votes for a non-profit organization I'm in. Existing tools that I have found (include both non-Zope things and the Zope Poll product) are not quite flexible enough. For example, I want to have several question in one poll (eliminatess most of the non-Zope things) and I want to be able to have people rank alternatives for some of the questions (Poll product doesn't have this). I'm trying to make something that has lots of little bits that can be combined flexibly. For example, one can combine a particular style of question (yes/no vs ranking) with a way of tabulating the votes (instant-run-off vs ranked pairs for ranked questions). The part that's giving me trouble relates to how subitems are handled. Questions are subitems of a Ballot, and Response are subitems of Questions. There are two choices 1) what order should the items be presented in (e.g., original order or a random order)? 2) how should they be labelled? This in turn has two parts: do you want arabic, roman, or letters for the labels, and what decoration around that do you want--e.g., Question xxx: vs Issue xxx). It seems natural to allow some of these options to be specified at a high level of containment. For example, one might have a preferred numbering style for questions and another for responses that are set at the level of the Ballot (or even higher, possibly). Then, if you wanted to, you could override these lower down. Specifically, each question determines how to number its responses, but the style it uses for numbering the responses will typically come from a higher level. This style of containment and optional overriding seemed to me exactly what acquisition was all about, so I tried to do it with acquisition. But it didn't work. Based on previous responses, I've implemented a containment hierarchy by hand. This works. Almost surely there is a better way. ___ 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] Re: Refresh trashes acquisition
On Mon, Jul 29, 2002 at 07:58:22AM +0100, Toby Dickenson wrote: On Saturday 27 Jul 2002 12:32 am, Ross Boylan wrote: On Sat, Jul 27, 2002 at 12:26:04AM +0200, Lennart Regebro wrote: From: Ross Boylan [EMAIL PROTECTED] I don't follow that last paragraph. Does it mean 1. acquisition created by a.__of__(b) doesn't survive transactions. Correct. Just to be sure I understand: so if c is persistent, and I say c.d = a.__of__(b) This is storing an acquisition wrapper as an attribute of c. acquisition wrappers are not persistent. This will raise an exception if you try to store c in ZODB. I was able to store these things without raising an exception, though not with the ability to reconstitute them reliably. My case was, however, subtly different. a.__of__(b) got put in a PersistentList, which is essentially [] with a little extra help: - # This code is a copy of the Python UserList.py, updated to support # persistence. from Persistence import Persistent class PersistentList (Persistent): isAPersistentList = 1 def __init__(self, lst=None): if lst is None: self.data = [] else: self.data = list(lst) -- Either this case is different, or it is not the case that attempting to store and acqusition wrapper raises an exception (in Zope 2.5.1). ___ 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] Re: Refresh trashes acquisition
I missed this in all the excitement, and have a follow-up below. On Tue, Jul 30, 2002 at 04:57:07PM +, Florent Guillaume wrote: Ross Boylan [EMAIL PROTECTED] wrote: My case was, however, subtly different. a.__of__(b) got put in a PersistentList, which is essentially [] with a little extra help: # This code is a copy of the Python UserList.py, updated to support # persistence. from Persistence import Persistent class PersistentList (Persistent): isAPersistentList = 1 def __init__(self, lst=None): if lst is None: self.data = [] else: self.data = list(lst) This is not a correct PersistentList. Your object won't get stored to ZODB upon l.append(xx) or l.update. There is a correct PersistentList in the ZODB package of Zope 2.6 (in CVS). Florent That was just the first few lines of the class definition to give a flavor. Was your remark that it was wrong based on the assumption it was the entire implementation, or is there something obviously wrong with the part you see? ___ 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] Re: Refresh trashes acquisition
On Sat, Aug 10, 2002 at 10:25:32AM +0100, Chris Withers wrote: Ross Boylan wrote: That was just the first few lines of the class definition to give a flavor. Was your remark that it was wrong based on the assumption it was the entire implementation, or is there something obviously wrong with the part you see? Nothing wrong with the visible parts, how did you implement the append (and other) methods? cheers, Chris I didn't implement it, though I can't remember where I got it from. I think it's OK. For example, here's append def append(self, item): self.data.append(item) self._p_changed = 1 I hope that's not a ZODB 2 ism also! ___ 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 )
[Zope-dev] How to trigger Zope externally (mail)
I am working on a poll/survey type product and want to handle responses by email as well as the web. If you have any advice about the best architecture, I would appreciate it. I'm currently using Zope 2.5 on Linux, though it would be nice if the solution weren't too platform dependent. Here are some options I have thought of. 1. Incoming mail goes to a pipe, which is a program that processes the message. I think the main drawback of this approach is that I would need to run Zope on top of ZEO so that multiple processes could access the database safely. I'm also not sure how hard it would be to reestablish the context of my product outside of regular Zope. Aside from these concerns, this seems the most natural approach. 2. Incoming mail goes to mbox; via the regular zope web interface I periodically point to the mbox and request that it be processed. Ugly, but relatively simple. Some locking and concurrency issues. Likely to result in much slower response to mail. Also, there could be some problems distinguishing message boundaries; in practice, probably not a problem. 3. Incoming mail goes to temp file or temp named pipe*. The running zope is tickled via http: with the name of the file/pipe, and processes it from there. *By temp named pipe I mean each mail would need a unique pipe name. I think if I try to use a single named pipe I may have trouble if multiple emails go down it around the same time. 4. Deliver the email to the running zope via some other protocol, e.g., ftp. I'm not sure how to set this up. -- I welcome comments on these approaches, or others that are even better! Also, I would like the approach to be reasonably secure. Thanks. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] How to trigger Zope externally (mail)
On Wed, Feb 26, 2003 at 05:37:17PM -0800, Andy McKay wrote: Or just write a simple HTTP post using Python. Have a look around for the MailIn Product, or CMFMailIn which does this very simply and works fine for low volume traffic (eg: fine listening to [EMAIL PROTECTED]). Thanks. I borrowed from CMFMailIn; I couldn't find the MailIn product. ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
