Re: [sqlalchemy] 0.7 event migration
Documentation for AttributeImpl.callable_ still reads optional function which generates a callable based on a parent instance, which produces the default values for a scalar or collection attribute when it's first accessed, if not present already. But it seems it is no longer the function which generates a callable, but rather /is /the callable itself now, accepting both the state and the passive parameters. It used to be two stages, first callable_ accepts a state and then that returns a callable which accepted the passive parameter. Can you briefly summarize how this is meant to work now? (I think the doc string is wrong now??) On 12/25/2011 10:31 AM, Michael Bayer wrote: yes a few change names, reconstruct_instance, init_instance, init_failed. On Dec 24, 2011, at 7:42 PM, Kent Bower wrote: Right. And reconstruct_instance() was renamed load()? On 12/24/2011 5:56 PM, Michael Bayer wrote: On Dec 24, 2011, at 10:04 AM, Kent wrote: As the migration guide suggests, I'd like to embrace the events API. Is mapper event load() invoked at exactly the same place as the deprecated reconstruct_instance() ? yeah nothing has been moved. All the places where the internals would call XXXExtension.xxx_event() were just replaced with self.dispatch.xxx_event(), and the old Extension classes are invoked via an adapter to the new system. All unit tests for the extension system remain in place and haven't been modified. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
Re: [sqlalchemy] 0.7 event migration
On Dec 26, 2011, at 9:07 AM, Kent wrote: Documentation for AttributeImpl.callable_ still reads optional function which generates a callable based on a parent instance, which produces the default values for a scalar or collection attribute when it's first accessed, if not present already. But it seems it is no longer the function which generates a callable, but rather is the callable itself now, accepting both the state and the passive parameters. It used to be two stages, first callable_ accepts a state and then that returns a callable which accepted the passive parameter. yes that was a fabulous simplification of things I'm still very happy about. Can you briefly summarize how this is meant to work now? (I think the doc string is wrong now??) docstring is wrong yes. the callable just receives a state and a passive flag, then loads something for the attribute.It's just one less level of callable and the two that we have in use are LoadDeferredColumns and LoadLazyAttribute in strategies.py. This also isn't very public API and if I pointed you to this for some previous issue, I'd be curious if I remembered to mention that. On 12/25/2011 10:31 AM, Michael Bayer wrote: yes a few change names, reconstruct_instance, init_instance, init_failed. On Dec 24, 2011, at 7:42 PM, Kent Bower wrote: Right. And reconstruct_instance() was renamed load()? On 12/24/2011 5:56 PM, Michael Bayer wrote: On Dec 24, 2011, at 10:04 AM, Kent wrote: As the migration guide suggests, I'd like to embrace the events API. Is mapper event load() invoked at exactly the same place as the deprecated reconstruct_instance() ? yeah nothing has been moved. All the places where the internals would call XXXExtension.xxx_event() were just replaced with self.dispatch.xxx_event(), and the old Extension classes are invoked via an adapter to the new system. All unit tests for the extension system remain in place and haven't been modified. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
Re: [sqlalchemy] 0.7 event migration
yes a few change names, reconstruct_instance, init_instance, init_failed. On Dec 24, 2011, at 7:42 PM, Kent Bower wrote: Right. And reconstruct_instance() was renamed load()? On 12/24/2011 5:56 PM, Michael Bayer wrote: On Dec 24, 2011, at 10:04 AM, Kent wrote: As the migration guide suggests, I'd like to embrace the events API. Is mapper event load() invoked at exactly the same place as the deprecated reconstruct_instance() ? yeah nothing has been moved. All the places where the internals would call XXXExtension.xxx_event() were just replaced with self.dispatch.xxx_event(), and the old Extension classes are invoked via an adapter to the new system. All unit tests for the extension system remain in place and haven't been modified. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
[sqlalchemy] 0.7 event migration
As the migration guide suggests, I'd like to embrace the events API. Is mapper event load() invoked at exactly the same place as the deprecated reconstruct_instance() ? -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
Re: [sqlalchemy] 0.7 event migration
On Dec 24, 2011, at 10:04 AM, Kent wrote: As the migration guide suggests, I'd like to embrace the events API. Is mapper event load() invoked at exactly the same place as the deprecated reconstruct_instance() ? yeah nothing has been moved. All the places where the internals would call XXXExtension.xxx_event() were just replaced with self.dispatch.xxx_event(), and the old Extension classes are invoked via an adapter to the new system. All unit tests for the extension system remain in place and haven't been modified. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
Re: [sqlalchemy] 0.7 event migration
Right. And reconstruct_instance() was renamed load()? On 12/24/2011 5:56 PM, Michael Bayer wrote: On Dec 24, 2011, at 10:04 AM, Kent wrote: As the migration guide suggests, I'd like to embrace the events API. Is mapper event load() invoked at exactly the same place as the deprecated reconstruct_instance() ? yeah nothing has been moved. All the places where the internals would call XXXExtension.xxx_event() were just replaced with self.dispatch.xxx_event(), and the old Extension classes are invoked via an adapter to the new system. All unit tests for the extension system remain in place and haven't been modified. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
