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| greenman | I have a question about zope.app.file.file.File ... (http://svn.zope.org/zope.app.file/trunk/src/zope/app/file/file.py?rev=75300&view=auto) | 12:06 |
|---|---|---|
| greenman | the browser mix in http://svn.zope.org/zope.app.file/trunk/src/zope/app/file/browser/file.py?rev=75300&view=auto looks for dublin core metadata | 12:06 |
| greenman | yet the former File object doesn't declare itself as providing this | 12:06 |
| greenman | is there a simple way of allowing this File object to provide that layer? | 12:07 |
| greenman | would be nice for show() to be cache friendly for those File objects | 12:07 |
| greenman | I am guessing the right way is for the context that contains or has as an attribute the file object to be providing the modified data | 12:12 |
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| afd_ | greenman: http://svn.zope.org/zope.app.file/trunk/src/zope/app/file/configure.zcml?rev=75300&view=markup | 12:21 |
| afd_ | File is declared as implementing IAttributeAnnotatable | 12:21 |
| afd_ | there is an adapter adapting IAttributeAnnotatable objects to IAnnotation | 12:21 |
| afd_ | which is used adapted by DublinCore to store dc data | 12:21 |
| afd_ | so you don't have to do anything | 12:22 |
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| greenman | afd_: so it's up to the factory adding the file to set it up | 12:40 |
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| seletz | http://apidoc.zope.org/++apidoc++/Code/zope/index.html | 12:41 |
| seletz | ramonski: ^^^^ | 12:41 |
| seletz | oh sorry, wrong channel :p | 12:44 |
| * seletz made a fool of himself one more time :p | 12:45 | |
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| greenman | something tells me that http://svn.zope.org/zope.app.file/trunk/src/zope/app/file/browser/file.py?rev=75300&view=auto is broken anyway and would indicate File objects never end up with dublin core annotations | 13:26 |
| greenman | the line header= self.request.getHeader('If-Modified-Since', None) is wrong | 13:26 |
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| afd_ | greenman: why is that line wrong? | 13:33 |
| greenman | it should be self.request.response.getHeader ? | 13:34 |
| afd_ | the browser sends the If-Modified-Since header | 13:35 |
| greenman | I must have different request objects then, I haven't seen them have a getHeader method ... but I'm in the plone 3 and therefore zope 2 world, | 13:36 |
| afd_ | http://svn.zope.org/zope.dublincore/trunk/src/zope/dublincore/configure.zcml?rev=75119&view=markup | 13:37 |
| afd_ | you can see the subscribers there. | 13:38 |
| afd_ | they'll update the DC when an event is triggered for an object (modified, created, etc) | 13:39 |
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| greenman | all I am saying is that I don't believe the line self.request.getHeader('If-Modified-Since', None) is correct | 13:40 |
| greenman | since when does request have a getHeader method? | 13:40 |
| greenman | so I am implying this method never gets to this point | 13:41 |
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| afd_ | greenman: http://paste.plone.org/21260 | 13:43 |
| greenman | this is a zope 3 BrowserRequest? | 13:44 |
| afd_ | yes | 13:44 |
| greenman | yeah, I think that's the problem, this part of the zope.app.file library has issues in the zope 2 world | 13:45 |
| afd_ | I think zope 2 has it's own version of a File content object... | 13:46 |
| greenman | as well as this one | 13:46 |
| afd_ | perhaps you should address this problem on #plone, there are probably a few people there with more experience in integrating z2 with z3 libraries | 13:47 |
| greenman | sure. thanks for your help. | 13:48 |
| afd_ | np | 13:48 |
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| pyqwer | Does someone know, which version of zalchemy in the SVN-Repository works with a recent SQLAlchemy distribution? | 16:14 |
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| Theuni | pyqwer: please forget about zalchemy | 18:34 |
| Theuni | it's pretty much abandoned by now. the folder stuff is *bah* and the transaction stuff finally went into zope.sqlalchemy | 18:35 |
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| pyqwer | Theuni: Thanks, I did not know about the zope.sqlalchemy package. Great, I'll have a look at it! | 20:13 |
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| elro | what's the replacement for the site manager api? | 22:07 |
| philiKON | whaddaya mean? | 22:07 |
| elro | zope.component 3.4 seems to say that getSiteManager needs to be deprecated | 22:08 |
| philiKON | does it emit a warning? | 22:08 |
| elro | no | 22:08 |
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| philiKON | then it's not deprecated :) | 22:09 |
| elro | http://svn.zope.org/zope.app.component/trunk/src/zope/app/component/README.txt?rev=85829&view=auto shows BBB too | 22:09 |
| elro | right ok | 22:10 |
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| philiKON | this is zope.*app*.component | 22:10 |
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| philiKON | and it's about the getNextSiteManager() stuff | 22:10 |
| philiKON | which is indeed deprecated | 22:11 |
| elro | I'm writing a test, and I want to test what happens when I change site manager. I'd like to avoid adding zope.app.component into the requirements. Is there any way to setSite to a zope.component.register.Components? | 22:11 |
| philiKON | zope.component knows nothing about the thread local variable that is set to the site manager | 22:12 |
| philiKON | by setSite() | 22:12 |
| philiKON | all this is in zope.app.component | 22:12 |
| philiKON | in fact, you won't even be able to use local site managers without the hooks in zope.app.component enabled | 22:12 |
| philiKON | (you enable them by calling setHooks()) | 22:12 |
| philiKON | also, as far as i remember, the Components class isn't quite made to work as a local, non-persistent component registry | 22:13 |
| elro | but zope.component.getSiteManager still returns the correct thing - or is that setup by the setHooks | 22:13 |
| philiKON | i think that's what z3c.baseregistry provides | 22:13 |
| philiKON | elro: z.c.getSiteManager() returns the correct thing b/c it's replaced by a custom implementation from zope.app.component. this replacement happens when you call setHooks() indeed. | 22:13 |
| elro | ah | 22:14 |
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| elro | does z3c.baseregistry replace getSiteManager too? | 22:15 |
| elro | I'm trying to work out whether I can use id(z.c.getSiteManager()) in a scoping function for zope.sqlalchemy | 22:16 |
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| philiKON | no, z3c.baseregistry doesn't replace getSiteManager() | 22:22 |
| philiKON | it uses the same mechanism as zope.app.component | 22:22 |
| philiKON | it just provides non persistent local site managers | 22:22 |
| philiKON | (in contrast to persistent local site managers that z.a.component has) | 22:22 |
| philiKON | id() sounds scary, especially if it may be a persistent obj | 22:23 |
| elro | the id() shouldn't change for the duration of a request though, no? | 22:23 |
| philiKON | no, i suppose not | 22:24 |
| elro | though I could probably test for a _p_oid first | 22:24 |
| philiKON | what you really want is to detect when a site manager changes, right? | 22:24 |
| philiKON | or rather, that a site manager has changed | 22:25 |
| elro | it seems easier just to add it to the scoping function of sqlalchemy's scoped session | 22:25 |
| philiKON | i have no idea what that means :) | 22:26 |
| * philiKON doesn't know sqlalchemy that well | 22:26 | |
| philiKON | i just wonder what you want with the sitemanager | 22:26 |
| philiKON | and why you'd need its id() | 22:26 |
| elro | I need to ensure that I end up with a different session within different site managers | 22:27 |
| philiKON | ok | 22:27 |
| elro | because local utility registrations could differ | 22:28 |
| philiKON | but per request there's really only on esite manager | 22:28 |
| philiKON | it's set during traversal | 22:28 |
| philiKON | each time the publication traverses over an ISit eobject, it stows the corresponding site manager away | 22:28 |
| philiKON | so when the application code (views, etc.) is executed, there's only one site manager active | 22:28 |
| philiKON | of course, i don't know how much you do stuff during traversal, because that's really only where the site manager changes | 22:29 |
| elro | the corner case I'm trying to handle is having two instances of an application (each with a db engine registered as a local utility) get different sessions when they are both accessed in a single request | 22:30 |
| philiKON | hmm | 22:32 |
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| philiKON | so let me understand this | 22:33 |
| elro | If app.site1 = MyApp(); app.site2 = MyApp(), I want an operation such as app.site1.obj.foo = bar; app.site2.obj.foo=bar to force two sessions into the transaction | 22:33 |
| philiKON | let's say in an early stage (e.g. during traversal), code finds a particular db engine | 22:33 |
| philiKON | ah i see | 22:33 |
| philiKON | that's not really possible with just a getSiteManager() call | 22:34 |
| philiKON | as said, there's only one active site manager | 22:34 |
| philiKON | it's found during traversal | 22:34 |
| philiKON | so it depends on the URL which site is active | 22:34 |
| philiKON | if the view behind http://.../app/site1/... manages to modify something in site2, then still site1's site manager is active | 22:35 |
| elro | hmm | 22:35 |
| philiKON | the only way to circumvent that is to explicitly use a context argument | 22:35 |
| philiKON | getSiteManager(context=app2.site2.obj.foo) | 22:35 |
| philiKON | this will yield site2's site manager | 22:35 |
| elro | could something like site1 = app.restrictedTraverse(site1); site2 = app.restrictedTraverse(site2); site1.obj.foo =bar; site2.obj.foo = bar work? | 22:38 |
| elro | (assuming that site1.obj somehow triggers a getUtility lookup somewhere) | 22:40 |
| elro | or would getUtility(ISomething, site1.obj) work (assuming site1.obj,__parent__ = site1) | 22:41 |
| philiKON | i don't seem to quite follow | 22:42 |
| philiKON | there's no restrictedTraverse in z3 :) | 22:42 |
| philiKON | traversal happens exactly once per request | 22:42 |
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| elro | I've spend too long in Zope2 ;-) | 22:43 |
| philiKON | :) | 22:43 |
| philiKON | i could tell from obj.obj.obj.obj :) | 22:43 |
| philiKON | ugly attribute syntax | 22:43 |
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| philiKON | anywa | 22:43 |
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| philiKON | i don't quite undestand this, i'm afraid | 22:44 |
| elro | does the context that gets passed to getUtility have to be a site, or can it just refer to a site somewhere in it's __parent__ chain? | 22:44 |
| philiKON | the latter | 22:44 |
| philiKON | it's an explicit keywrod argument though | 22:44 |
| philiKON | getUtility(IFoo, context=context) | 22:44 |
| philiKON | where context should have a __parent__ chain somewhere leading to an ISite | 22:44 |
| philiKON | (the 2nd positional arg to getUtilty is the name) | 22:45 |
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| elro | without a context though I guess I'm stuffed | 22:46 |
| philiKON | from what i understand, it appears so | 22:46 |
| elro | I need to register a ScopedSession for each instance of the application, and ensure I look up the ScopedSession with a context | 22:46 |
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| philiKON | seems so | 22:48 |
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| elro | Though maybe it would be more natural to adapt an object to a session | 22:52 |
| philiKON | not a bad idea | 22:53 |
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