Dear Mark, your solution sounds really great but I discovered that it is just ... impossible to make some bulk operation on contacts (at least until release r3).
I then optimized my code to update just what has to be updated. Thanks you by the way for your answer. C. On 28 sep, 14:19, Mark Murphy <mmur...@commonsware.com> wrote: > cyril.at...@gmail.com wrote: > > I have an application that updates all the contacts belonging to a > > group, I currently do the following : > > -> Get the group id > > -> Get all the contacts id inside this group > > -> For each of them I am doing an update on thecontact=> This is > > really heavy and seems to take time in real phones while I expect it > > to be "instantaneous". > > > I am wondering if we can, in the ContentResolver.update() method > > specify a kind of join. > > For instance I'd like to do something like : > > UPDATE <people> SET <people.name>="<new name>" FROM People p, > > GroupsMemberships gm WHERE p.person_id=gm.person_id and > > gm.group_id=<my_group_id> > > > Does anyone know if it's possible or not? > > Not that I am aware of. Bear in mind that not all content providers will > be using a SQL database as the place of data storage. > > Since the contacts content provider does appear to use SQLite, rather > than iterating over your contacts, though, you could try the IN syntax > in the WHERE-style constraint: > > [WHERE] person_id IN (...) > > where ... is a comma-delimited set of values, or possibly even a > sub-select to get the IDs of the contacts to update. > > http://sqlite.org/lang_expr.html > > -- > Mark Murphy (a Commons > Guy)http://commonsware.com|http://twitter.com/commonsguy > > Looking for Android opportunities?http://wiki.andmob.org/hado --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
