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| malthe | is there a way to fall back from an expression in a page template that throws an Unauthorized exception? | 02:04 |
|---|---|---|
| malthe | I can't seem to avoid getting redirected to the login page | 02:05 |
| philiKON | tal:on-error ? | 02:05 |
| * malthe googles | 02:05 | |
| malthe | philiKON: it's funny, because I'm trying to use the contentratings package by alec mitchell and I wonder how his example template would ever work. | 02:05 |
| malthe | as I can see it would never correctly fall back for anonymous users. | 02:06 |
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| malthe | tal:on-error works; I'll write him and ask if he ever tried out his code :-) | 02:10 |
| malthe | thanks | 02:10 |
| philiKON | np | 02:13 |
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| projekt01 | srichter, ayt? | 02:36 |
| projekt01 | can anybody fix the linux tests in zope3recipe and make an egg. I implemented the missing windows support | 02:38 |
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| romanofski | moin :) | 09:41 |
| zagy_ | wiki.zope.org is down? | 09:42 |
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| d2m | zagy: yes, still searching a person with sysadmin rights | 09:52 |
| zagy | :/ | 09:52 |
| d2m | its a pitty | 09:53 |
| markusleist | srichter: Hi, do you know any recipe for z3c.form and (some kind of) references to objects? | 09:54 |
| baijum | d2m, is wiki.zope.org hosted by Amaze.nl people ? | 09:55 |
| d2m | yes | 09:55 |
| d2m | i've already posted to zope-web mailing list | 09:55 |
| baijum | did you contacted their admin, I have noted this contact address before: "Bas van der Linden, bas@amaze.nl" | 09:56 |
| d2m | no, i've no contact there at all, will send him a message, thanks | 09:56 |
| baijum | d2m, thanks | 09:57 |
| d2m | hth | 09:59 |
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| markusleist | projekt01: moin | 10:15 |
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| markusleist | does anyone know a recipe for z3c.form and (some kind of) references to objects? | 10:27 |
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| bigkevmcd | in' all | 10:57 |
| d2m | baijum: bas from amaze.nl restarted the server hosting the wiki, seems like thinks work again now | 10:58 |
| baijum | d2m, ok | 10:59 |
| projekt01 | Hm, http://download.zope.org/distribution is down. | 11:15 |
| d2m | not from here | 11:16 |
| baijum | not from here also (India) | 11:17 |
| projekt01 | Hm, you are right, periodocly I receive some bytes | 11:18 |
| projekt01 | but only two or three bytes per minute | 11:19 |
| baijum | projekt01, does your svn access to svn.zope.org woks fine ? | 11:20 |
| projekt01 | no there is no response from the svn server | 11:21 |
| bigkevmcd | it works fine for me | 11:23 |
| projekt01 | probably a WLAN problem here? I'll restart my network things. | 11:24 |
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| projekt01 | baijum, that was my WLAN which was slow | 11:58 |
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| baijum | projekt01, ah, ok (I asked for svn access because both download.zope.org and svn.zop.org are same machines) | 12:00 |
| d2m | mail server is on it too, its name is cvs.zope.org | 12:01 |
| baijum | buildobot is also in that machine, I think | 12:01 |
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| projekt01 | baijum, thanks for the info | 12:37 |
| baijum | np | 12:43 |
| markusleist | projekt01: 2 minutes for an advice? | 13:00 |
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| junkafarian | hi * | 13:35 |
| junkafarian | is there a way to restrict permissions to the creator of an object | 13:36 |
| junkafarian | ? | 13:36 |
| projekt01 | markusleist, yes | 13:36 |
| junkafarian | or do i have to write a checker | 13:36 |
| markusleist | projekt01: do you know any recipe/docu for z3c.form and (some kind of) references to objects? (some kind of "Select Widget of Object-Ref-Vocab.") | 13:37 |
| projekt01 | junkafarian, you can define own permissions and register a view with this permission | 13:37 |
| projekt01 | markusleist, I don't understand: reference of objects? | 13:38 |
| junkafarian | projekt01: but doesnt that apply to all objects created with that permission by any user | 13:38 |
| junkafarian | is there a way to restrict a user from only editing their own objects? | 13:39 |
| projekt01 | Ah, yes, then you need to set a local permission, you can deny a principal for a permission on a instance. | 13:39 |
| junkafarian | how would i do that? | 13:39 |
| projekt01 | There is a adapter ;-) | 13:40 |
| * junkafarian loves adapters :D | 13:40 | |
| junkafarian | where may i find this adapter? :P | 13:40 |
| projekt01 | just found it, IPrincipalPermissionManager | 13:41 |
| projekt01 | in zope.app.securitypolicy.interfaces | 13:41 |
| junkafarian | cool | 13:41 |
| * junkafarian looks into it | 13:41 | |
| markusleist | What will be the best method to store a list of (references to) n objects in an other objects attributes and edit this list via z3c.forms? | 13:41 |
| markusleist | my usecase: i've implemented an "event-crossbar" which will emit signals to a list of other objects configured in ZODB. | 13:43 |
| projekt01 | markusleist, aha, I was thinking you are looking for a buildout recipe. I probably was looking to deep into the eggs. | 13:43 |
| projekt01 | markusleist, you need to implement a sequence widget for your list field. | 13:44 |
| markusleist | ok | 13:44 |
| projekt01 | there is allready a bsic sequence widget implementation, but there is no add and edit view for the sequence widget. | 13:45 |
| projekt01 | The zope.app.form does haqave one. I guess we need to implement the same for z3c.form. | 13:45 |
| markusleist | there are some implementations of reference storages out there. any recipe for such a list in e.g. formdemo? | 13:45 |
| projekt01 | don't use the word recipe for concepts, because we use the name recipe for the builout process ;-) | 13:47 |
| markusleist | sorry, my mistake | 13:48 |
| projekt01 | Hm, are you looking for a data storage in a form or a field widget? | 13:48 |
| projekt01 | There is a dict storage for form data and a field storage, if you asking for that. | 13:49 |
| markusleist | no, no data storage: | 13:49 |
| markusleist | a list of references to other objects: the browser widget must offer a "chooser for Objects" in form of a list with 'add obj' and 'del obj'-button or a multiple selection box of (titles) of my object list. | 13:52 |
| markusleist | ok, refs are data, too - but the referenced objekts will be changed in an own dialog. precise my central object does'n have a list, but a set of refs. to other objs. | 13:55 |
| junkafarian | projekt01: so basically i have to create a custom permission per user and attribute that to each object they create? | 13:57 |
| junkafarian | sorry for the naivity | 13:58 |
| junkafarian | :P | 13:58 |
| markusleist | Or should i use a z3c.form-Select-Widget with object-uid in the vocabulary? | 14:01 |
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| markusleist | hmm, should i implement a list of object-uids or a list of "reference to object"? any example or other hint in z3c.form? | 14:05 |
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| junkafarian | isn't there a more pythonic way to restrict editing an object to the object's creator? | 14:15 |
| junkafarian | or does the object only store creation info in the Dublin Core annotations => leading to it not being implemented as base functionality? | 14:17 |
| junkafarian | meh i suppose i can just write a condition into the editing methods | 14:18 |
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| markusleist | projekt01: i will try to adapt the DateSelectWidget-example from z3c.formdemo.addressbook to my set of object-uids - thnx. | 14:34 |
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| projekt01 | junkafarian, restrict a method access is Ok, but be aware not forget doing this everywhere you need to. Deny permissions will be a better choice if you need to make sure the user don't have access to the object/attribute at all. | 14:49 |
| CrippsFX | first time I've ever seen the NotYet(object) exception ... what does it mean? | 14:54 |
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| junkafarian | projekt01: basically it is a video publishing system and we only want the user that uploaded the video to be able to edit it | 15:14 |
| junkafarian | however the container will have lots of videos | 15:15 |
| junkafarian | so i dont want to tar the whole folder with a permission that allows any user to edit any video | 15:17 |
| dennis_ | crippsfx for me usually that means I am doing something which requires the object to be locatable (have a __parent__ hierarchy) and it doesn't yet (since i just cerated it) | 15:18 |
| CrippsFX | dennis_: I see. That makes sense (I couldn't figure that out directly by looking at where NotYet was raised). | 15:20 |
| CrippsFX | hm. I guess I'll have to explicitly set the __parent__ then. | 15:20 |
| CrippsFX | brb | 15:20 |
| srichter | markusleist: what are you looking for with repsect to z3c.form? | 15:20 |
| dennis_ | use locate(obj, parent, name) .. from zope.location.location | 15:20 |
| CrippsFX | dennis_: kk. will do. | 15:21 |
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| dennis_ | (though if you add to a container it should do it already) | 15:21 |
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| markusleist | srichter: i'm looking for an "object-browser-widget" to refs or uids of objects in ZODB | 15:29 |
| markusleist | srichter: now i'm working on my adaption of DateSelectWidget-example from z3c.formdemo.addressbook to my set of object-uids - thnx for the moment / sorry, i have to dive deeper into z3c.form, first | 15:29 |
| srichter | there is no object browser widget | 15:29 |
| CrippsFX | dennis_: yeah, I figured the __parent__ should already be taken care of because the object is being put into a container ... I don't know why it's not doing it automagically ... but then again, I'm pretty sure this component is one giant hack. | 15:29 |
| markusleist | that is my problem | 15:30 |
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| srichter | markusleist: the requirements for object/reference widgets are all over the place and not well defined | 15:31 |
| dennis_ | cripps if the container itself is an attribute of some object, it does not have __parent__ pointing to the real object, and you get the same effect | 15:31 |
| srichter | markusleist: before implementing a reference widget, you first need a reference field | 15:31 |
| srichter | markusleist: I think this would make a great third-party package. | 15:31 |
| dennis_ | (cripps as opposed to the object itself being a container) | 15:31 |
| junkafarian | is there not a way to restrict permissions to an objects creator? :( | 15:32 |
| CrippsFX | dennis_: actually ... I've made the container an attribute of a view class ... | 15:32 |
| CrippsFX | so that might explain the weird behaviour :) | 15:32 |
| dennis_ | view classes have short lifespans, i think | 15:32 |
| CrippsFX | dennis_: yep. That's the intention. | 15:32 |
| dennis_ | but i dont know what you're tring to do anway :) | 15:33 |
| markusleist | srichter; but: all my objects have an uid-attribute, so an multiple-list auf this uids can be used as my "1:n"-relation, or? | 15:33 |
| CrippsFX | dennis_: goes words to the effect of: query a database, make a container, display said container and then throw it away so that next time I want to view the data, it's fresh. | 15:33 |
| markusleist | there are some implementaions of references in ZODB, right? | 15:33 |
| dennis_ | junkafarian look into zope.app.securitypolicy.interfaces, for example IPrincipalRoleManager or IPrincipalPermissionManager | 15:33 |
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| junkafarian | dennis_: but do i have to create a new permission for each user/object? | 15:34 |
| dennis_ | cripps so in the update() method you create self.data, and the pagetemplate uses view/data to render ? then i dont know why anything would complain about the NotYet | 15:34 |
| dennis_ | junkafarian no, you can have for example mysite.Edit permission, which is NOT granted to any principal by default (or role), and grant it only for that object to a specific principal | 15:35 |
| dennis_ | (the owner) | 15:35 |
| dennis_ | it's really very flexible, but takes some time to fully appreciate :) | 15:35 |
| junkafarian | ah | 15:35 |
| junkafarian | ok | 15:35 |
| * junkafarian has only been developing on zope for a matter of weeks | 15:36 | |
| junkafarian | and is liking it more and more | 15:36 |
| dennis_ | junkafarian the IPrincipalPermissionManager grants (or denies) a specific permission to a specific principal, only for that given object (and its children) | 15:36 |
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| CrippsFX | dennis_: actually, I was doing that in the @form.action() method ... *whistles* | 15:36 |
| junkafarian | dennis_: perfect! | 15:37 |
| * junkafarian chases it up | 15:37 | |
| srichter | markusleist: you can handle this case using a choice field, for which a widget exists | 15:39 |
| dennis_ | cripps for forms its a little bit different, i guess, not sure what you're doing anymore :) | 15:39 |
| srichter | markusleist: all you have to do it create a vocabulary/source for the choice field | 15:39 |
| srichter | markusleist: if you have too many objects to choose from, you might need a custom implementation of a widget for your choice field | 15:40 |
| srichter | markusleist: (the default is an option box) | 15:40 |
| CrippsFX | dennis_: yeah ... basically, I have two choice widgets that gather information, and I'm creating a container filled with data retrieved from a database (based on the input from the widgets). Once the form is submitted, I want to display the data in the container. | 15:40 |
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| markusleist | srichter: thank you - that's the "simple" way. I will write you an email today. | 15:41 |
| CrippsFX | dennis_: thanks to Stephan I got *most* of it figured out. It's just dealing with the errors that had me really confuzzled ;) | 15:41 |
| dennis_ | crippsfx wouldn't it be easier to collect the data, and in form.nextURL call a display page with ?argumenta=a&b=b that loads from your database (in the update()) method and displays the info? | 15:42 |
| CrippsFX | dennis_: I've no idea how to use form.nextURL when I don't have a view set up for a non-persistent object ... | 15:42 |
| dennis_ | you could have display_table_from_sql.html registered for *, which takes arguments and loads and displays the data | 15:43 |
| dennis_ | i use sql for most-popular-page ranking etc | 15:44 |
| dennis_ | pull the data in a viewlet | 15:44 |
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| CrippsFX | dennis_: I'm sorry ... do you have an example of a template/function call/registration that I can look at to figure that out? | 15:45 |
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| dennis_ | crippsfx: http://paste.lisp.org/display/45335 | 15:58 |
| CrippsFX | dennis_: thanks :) | 16:01 |
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| CrippsFX | dennis_: ahh. That makes a little more sense now. | 16:04 |
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| benji | do I recall correctly that someone has written an xmlrpc authentication plugin? | 17:20 |
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| srichter | benji: not that I am aware of | 17:23 |
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| benji | darn | 17:24 |
| srichter | benji: but it should be easy enough to write :-) | 17:24 |
| benji | slightly less easy than not writing it <wink> | 17:25 |
| srichter | benji: btw, do you mean forward the authentication request via XML-RPC somewhere or having a plugin for XML-RPC requests | 17:25 |
| benji | the former | 17:25 |
| srichter | ok, right, this does not exist | 17:26 |
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| dennis_ | what is the best way to make @@absolute_url and zapi.getAbsoluteURL return everything except the http://server:port/ part? I am caching some pages but don't want the server part cached in there, it's enough if it is just an absolute /path/to/document (will getPath() always work?) | 18:18 |
| srichter | dennis_: I would implement a derivative of absoluteURL in zope.traversing.browser that excludes the server part and register it as an alternative anme | 18:20 |
| dennis_ | sounds reasonable :) | 18:21 |
| srichter | maybe call it absolutePath | 18:22 |
| dennis_ | am I going to break something by having absolutePaths instead of URLs in my links ? | 18:22 |
| srichter | I don't think so | 18:27 |
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| dennis_ | ok that works nicely. thanks :) | 18:48 |
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| junkafarian | erm, i need to grant and deny a user permissions on an object when that object is created, however, the user doesnt have permissions to do that :( | 19:33 |
| srichter | if you do it programmatically, the security framework is turned off and it can be done | 19:34 |
| junkafarian | eg withing the application scripts? | 19:34 |
| junkafarian | s/within | 19:34 |
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| junkafarian | at the moment it is in a __call__ method of a browser:page | 19:35 |
| junkafarian | and it is returning unauthorised | 19:35 |
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| junkafarian | srichter: ^ | 19:36 |
| junkafarian | basically i want the user to get granted the permission to upload a file once they create an object | 19:37 |
| junkafarian | and when the file is uploaded i want to remove the permissions again | 19:37 |
| srichter | remove the security wrapper of the context | 19:37 |
| junkafarian | the security proxy? | 19:37 |
| junkafarian | ah | 19:38 |
| junkafarian | cool | 19:38 |
| srichter | or have a special event listener for "object added event" that hands out the permissions | 19:38 |
| srichter | (the latter would be cleaner I think) | 19:38 |
| junkafarian | cant i set it up in the object creation script? | 19:38 |
| srichter | what script? | 19:39 |
| srichter | you mean the add form create() method? | 19:40 |
| junkafarian | the add form | 19:40 |
| junkafarian | yes | 19:40 |
| junkafarian | or is that not secure? | 19:40 |
| srichter | that would be a location you can do it too, but the problem there is that you leave business logic within view code, which is a bad idea | 19:40 |
| srichter | security is not the problem | 19:40 |
| srichter | it's more a separation of concerns issue | 19:40 |
| junkafarian | best practice? :P | 19:40 |
| junkafarian | cool | 19:41 |
| srichter | view code should not contain business logic | 19:41 |
| srichter | right ;-) | 19:41 |
| junkafarian | makes sense! | 19:41 |
| junkafarian | cheers ;) | 19:41 |
| srichter | event listeners are very powerful | 19:42 |
| srichter | and they allow you to implement policy in a aconfined and well-documented way | 19:42 |
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| junkafarian | would i implement that within the object container? | 19:43 |
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| junkafarian | to monitor the creation of new contained objects? | 19:43 |
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| srichter | no, you use the event framework :-) | 19:44 |
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| junkafarian | [13:36] junkafarian has only been developing on zope for a matter of weeks | 19:45 |
| junkafarian | :P | 19:45 |
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| junkafarian | havent come across that yet :P | 19:45 |
| srichter | mmh, try one of the books to read up on it | 19:46 |
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| CrippsFX | would somebody please help me make sense of this traceback: http://www.pastebin.ca/639609 ... from what I gather, __call__() somewhere is not being called with the correct number of arguments, but because of the way the traceback is presented, I can't tell which part of my code is causing this problem. | 21:19 |
| bigkevmcd | CrippsFX: my reading of it is that whatever template is, it probably isn't what it should be | 21:20 |
| CrippsFX | bigkevmcd: I see. | 21:21 |
| CrippsFX | bigkevmcd: ah. I see, yes. That appeared to be the problem. | 21:21 |
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| dennis_ | What is the recommended way for an event handler to get the current principal (I am trying to tag an object revision with the principal id upon modification, currently using queryInteraction(), which works, but maybe isn't the best way) | 21:29 |
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| CrippsFX | dennis_, srichter : thanks for the help you guys have been giving me ... after much deliberation and experimentation, I must mention this: the problem I'm having with my current task is not *getting* the information, it's displaying it (i.e. getting a handmade template to render) ... you both mention "the template can now use the data" in your advice to me, but I need to know *how* to get the template to display correctly. Stephan, I'm using | 22:38 |
| CrippsFX | the method you gave me, where the event handler takes care of assigning the retrieved data to a view attribute. | 22:38 |
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| CrippsFX | I'm going home for the night. I'll check the irc logs in the morning. | 22:43 |
| dennis_ | you'd have to show the view code and the template | 22:44 |
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| srichter | CrippsFX: there are several ways to attach the template | 23:46 |
| srichter | (1) assign the ``template`` attribute to the form | 23:46 |
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