This page is pretty much required reading: http://code.google.com/appengine/docs/python/datastore/queriesandindexes.html
That covers the low level queries, how exactly you do it within the context of your application, is very hard to say, because we dont know the specifics. 2009/12/29 Diligent <qpwoeir...@comcast.net>: > In trying to make a transition from a purely PHP/MySQL background to > AppEngine's Python/Datastore I find myself not quite getting done what > I need. > Currently I have a web application in which a user chooses multiple > search criteria via an HTML form and passes those variables to a PHP > script that in turn queries a MySQL database and then displays the > results based on what they were looking for. > > The data is largely static in that it doesn't get changed or added to > very often but the specifics that a user searches on can vary greatly, > eg., > SELECT * FROM widgets WHERE color = 'blue'; > or > SELECT * FROM widgets WHERE color = 'orange' && weight < 3; > etc. (From the search form the user can choose from 1 to 20 different > criteria). > > I've been doing a lot of reading and a LOT of Google searching looking > for an example of what I am trying to accomplish, which one wouldn't > think would be difficult to get results since I'm just basically > wanting to submit multiple search criteria against the datastore and > retrieving the relevant results. > > At this point I would ask and greatly appreciate a pointer, an > example, a link to somewhere or anything that could help me in my > endeavor so I may get myself back on track. > > Will go back to reading the docs and I thank you for your time, > Q. > > -- > > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to google-appeng...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
