So, doing it like this - *parent = collections.collection_adapter(self).owner_state.obj()* where self is the collection object. is it correct?
Best wishes - Asif Mahmud Shimon On Thu, Jul 27, 2017 at 3:16 AM, Mike Bayer <mike...@zzzcomputing.com> wrote: > On Wed, Jul 26, 2017 at 5:15 PM, Asif Mahmud <ams.ee...@gmail.com> wrote: > > I walked through the dir of self and found this statement is the parent > > object - self._sa_adapter.owner_state.object . Is it safe to use this > object > > for making more queries inside append method? > > no, because _sa_adapter is private. The collection_adapter() function > should be used to access this attribute. > > > > > Best wishes - > > Asif Mahmud Shimon > > > > > > On Thu, Jul 27, 2017 at 1:32 AM, Mike Bayer <clas...@zzzcomputing.com> > > wrote: > >> > >> > >> > >> On Jul 26, 2017 1:18 PM, "Asif Mahmud" <ams.ee...@gmail.com> wrote: > >> > >> Hi, > >> Is there a way to get/retrieve the parent object from a collection > class's > >> append/add method ? > >> > >> > >> From the method, call im_self to get the collection object itself, then > >> use collection_adapter ( > >> http://docs.sqlalchemy.org/en/latest/orm/collections.html? > highlight=collection_adapter#sqlalchemy.orm.collections.collection_adapter > >> ) to get the CollectionAdapter, then call adapter.owner_state.obj(). > >> > >> > >> I'd recommend passing the parent object around in the first place, > however > >> as the above is esoteric and also runs the chance of failing if the > parent > >> object has been garbage collected. > >> > >> -- > >> SQLAlchemy - > >> The Python SQL Toolkit and Object Relational Mapper > >> > >> http://www.sqlalchemy.org/ > >> > >> To post example code, please provide an MCVE: Minimal, Complete, and > >> Verifiable Example. See http://stackoverflow.com/help/mcve for a full > >> description. > >> --- > >> You received this message because you are subscribed to the Google > Groups > >> "sqlalchemy" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an > >> email to sqlalchemy+unsubscr...@googlegroups.com. > >> To post to this group, send email to sqlalchemy@googlegroups.com. > >> Visit this group at https://groups.google.com/group/sqlalchemy. > >> For more options, visit https://groups.google.com/d/optout. > >> > >> > >> -- > >> SQLAlchemy - > >> The Python SQL Toolkit and Object Relational Mapper > >> > >> http://www.sqlalchemy.org/ > >> > >> To post example code, please provide an MCVE: Minimal, Complete, and > >> Verifiable Example. See http://stackoverflow.com/help/mcve for a full > >> description. > >> --- > >> You received this message because you are subscribed to a topic in the > >> Google Groups "sqlalchemy" group. > >> To unsubscribe from this topic, visit > >> https://groups.google.com/d/topic/sqlalchemy/-z1_UZEgZ5g/unsubscribe. > >> To unsubscribe from this group and all its topics, send an email to > >> sqlalchemy+unsubscr...@googlegroups.com. > >> To post to this group, send email to sqlalchemy@googlegroups.com. > >> Visit this group at https://groups.google.com/group/sqlalchemy. > >> For more options, visit https://groups.google.com/d/optout. > > > > > > -- > > SQLAlchemy - > > The Python SQL Toolkit and Object Relational Mapper > > > > http://www.sqlalchemy.org/ > > > > To post example code, please provide an MCVE: Minimal, Complete, and > > Verifiable Example. 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See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to a topic in the > Google Groups "sqlalchemy" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/sqlalchemy/-z1_UZEgZ5g/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. > -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. 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