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| pcardune | I am having a problem getting these RelationshipProperty's to work | 15:12 |
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| pcardune | when I add something, a link is only made for one of the objects involved and not both | 15:13 |
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| mgedmin | oh? | 15:45 |
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| erchache | hi | 16:00 |
| povbot | /svn/commits: * gintas committed revision 4153: | 16:15 |
| povbot | /svn/commits: Made the daily calendar PDF report a table, added unicode support. | 16:15 |
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| eldar | good morning | 18:29 |
| mgedmin | good evening, eldar | 18:30 |
| gintas | hi | 18:30 |
| povbot | /svn/commits: * gintas committed revision 4154: | 18:32 |
| povbot | /svn/commits: Made font path configurable, removed some unnecessary code. The code is not in a very good state yet, I want to make the dependency on ReportLab a soft one eventually. | 18:32 |
| povbot | /svn/commits: * gintas committed revision 4155: | 18:43 |
| povbot | /svn/commits: Put SchoolBell logo on the report. | 18:43 |
| eldar | question | 18:49 |
| mgedmin | request for clarification | 18:49 |
| eldar | when you relate 2 objects, the relationship schema takes care of everything itself right? | 18:49 |
| eldar | meaning, it'll just add some properties to the objects | 18:49 |
| mgedmin | more or less, yes | 18:50 |
| mgedmin | (the schema itself doesn't do much; everything happens within the relate method and the IRelationshipLinks adapter) | 18:50 |
| mgedmin | however no properties on the objects are touched | 18:51 |
| eldar | then how are they virtually related? | 18:51 |
| mgedmin | if you use RelationshipProperty, then yes, that property will know about the relationship you just established | 18:51 |
| eldar | something has to be recorded somewhere, right? | 18:51 |
| mgedmin | yes | 18:51 |
| mgedmin | the IRelationshipLinks adapter is responsible for storing relationship data | 18:51 |
| mgedmin | the default one uses Zope 3 annotations | 18:51 |
| mgedmin | 99% of annotatable objects in Zope 3 store the annotations in a dict in the __annotations__ attribute, IIRC | 18:52 |
| eldar | so just making the objects annotable and relating them is all i have to do..? | 18:52 |
| mgedmin | which is an implementation detail that you normally are not interested in | 18:52 |
| mgedmin | yes, you just have to make objects annotatable | 18:52 |
| eldar | cool | 18:52 |
| eldar | thanks | 18:52 |
| mgedmin | (and make sure the IAnnotatable -> IRelationshipLinks adapter is registered) | 18:52 |
| eldar | huH? | 18:52 |
| mgedmin | (which happens at runtime if you include schoolbell.relationships configure.zcml) | 18:53 |
| eldar | ok | 18:53 |
| mgedmin | (but you must do that yourself in unit test setup code if you want to use relationships in a test) | 18:53 |
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| eldar | ok, to register the adapter, i just add <package include="schoolbell.relationships" /> in candotoo configuration file, right? | 19:06 |
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| mgedmin | eldar, yes | 19:38 |
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