Beautiful, exactly what I was looking for. Thanks a lot. On Mon, Jul 12, 2010 at 4:24 AM, Fabio Maulo <[email protected]> wrote:
> <any> > > On Sun, Jul 11, 2010 at 10:50 PM, Vekaz Turković <[email protected]> wrote: > >> Thank you Diego, I was afraid this will end up unanswered :) That was one >> way I considered doing it, but there's also Activities who are, >> relationship-wise, the same as notes. Both Notes and Activities will most >> probably hold a lot of data. I am afraid that, with so many relationships, >> performance might become an issue pretty soon. Would it be possible to use a >> denormalized database; Note would hold type and id of the entity it is >> attached to? >> >> >> On Sun, Jul 11, 2010 at 11:43 PM, Diego Mijelshon <[email protected] >> > wrote: >> >>> This was discussed last month ( >>> http://groups.google.com/group/nhusers/browse_thread/thread/973df7dce9c5e0dc/97d49dac7dc21f85?lnk=gst&q=notes#97d49dac7dc21f85) >>> and it is certainly on topic :-) >>> >>> In short: the model is simple. Several classes have a collection of notes >>> (or, more precisely, a List, because the order probably matters). You could >>> create an interface (IHaveNotes) to deal with this in your code and make it >>> easy to add/retrieve notes from any entity. >>> >>> Then, you have at least two possible ways to map this: >>> - Note is a component type, there is one table per Notes collection >>> - Note is an entity, there is one table for the Notes and a many-to-many >>> table per each collection, mapped with cascade="all-delete-orphan" >>> >>> Note that the data implementation should NOT change your model. It's >>> always an IList<Note>. >>> >>> Diego >>> >>> >>> >>> On Sun, Jul 11, 2010 at 08:01, moohzor <[email protected]> wrote: >>> >>>> Hi, >>>> >>>> This isn't strictly nhibernate related, but I thought this would still >>>> be the right place to ask. >>>> >>>> I have a Note entity, related to almost all other entities (you can >>>> attach a note to pretty much anything else). All these entities have a >>>> property to hold a collection of notes (but notes don't have to have >>>> reference to the entity they're related to). I don't know how to best >>>> model this in the database and map in hbm. How would you do this? >>>> >>>> Thanks in advance. >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "nhusers" group. >>>> To post to this group, send email to [email protected]. >>>> To unsubscribe from this group, send email to >>>> [email protected]<nhusers%[email protected]> >>>> . >>>> For more options, visit this group at >>>> http://groups.google.com/group/nhusers?hl=en. >>>> >>>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "nhusers" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<nhusers%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/nhusers?hl=en. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "nhusers" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<nhusers%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/nhusers?hl=en. >> > > > > -- > Fabio Maulo > > -- > You received this message because you are subscribed to the Google Groups > "nhusers" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<nhusers%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/nhusers?hl=en. > -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
