Why don't you let the category to be a property of your model? class Food(db.Model): category1 = ... category2 = ... ...
Food(category1=fruit, category2=red, ...) 2009/5/1 Max Ross <maxr+appeng...@google.com <maxr%2bappeng...@google.com>> > Hi Vijay, > > Your questions are going to take some time to answer. Some are easier than > others. I'd recommend splitting them up into separate posts. > > Max > > On Thu, Apr 30, 2009 at 9:27 PM, vijay <mymail.vi...@gmail.com> wrote: > >> Ping!! >> >> >> On Thu, Apr 30, 2009 at 5:03 PM, vijay <mymail.vi...@gmail.com> wrote: >> >>> Hello All,I am working on an application and got stuck in design phase I >>> hope you guyz can help me out. I have several doubts related to performance >>> and modelling. >>> >>> 1# >>> In my application i store some hierarchical data and not sure how to do >>> it. >>> >>> for e.g. say you have data organized as >>> >>> food >>> |____fruit >>> | |___red---Iron----apples >>> | | | |____something >>> | | | >>> | | |___Viatamins ---- litchies >>> | | >>> | |___green----Iron-----apples >>> | |_____Vitamin E ----- guava >>> | >>> |____vegetable-------category1 -----category2----category3 >>> | |________________ >>> | | |________ >>> | |________________________________ >>> | |____ |____ >>> |____fried |_______ >>> |__similarly here >>> >>> Is there a clean way to store this kind of data in appengine. I mean what >>> should be classes , their properties etc. >>> >>> In my case the sub categories can upto a depth of 10, with each level >>> having 100s of categories. >>> I will be executing queries to lookup by any node, so basically i can do >>> lookup by fruit or apple or food as a whole. >>> >>> 2# >>> My applcation is going to have a search box where user will be writing >>> his search items, I would like to suggest them the correct word if they do a >>> spelling mistake, so if they type frut i wil suggest them to type fruit. >>> The way i am thinking of implementing it is to for each word entered do a >>> comparison with each node element with a relaxation of 2, so if the word >>> matched except at two points i will go ahead and suggest it. I think as i >>> need to have sequential traversal of all the nodes, which may take a lot of >>> time and resources, I should store it somewhere to do faster lookup like in >>> memcache, what are your suggestions. >>> >>> >>> 3# >>> Are there any standard APIs to send sms from application. I asked about >>> this in other thread but haven't got any reply, I hope I will get some >>> answers this time. >>> >>> I am quiet new to web site designing and any other suggestion or some >>> pointers to general design principles would be great. >>> >>> >>> Regards, >>> Vijay >>> >> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ 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-appengine@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 -~----------~----~----~----~------~----~------~--~---
