python - iPhone app with Google App Engine -

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I have prototype an iPhone app that uses (internal) SQLite as a data base, its intention is finally This was to communicate with a server via PHP, which would use MySQL as a back-end database.

I just searched Google App Engine, however, there is very little information about it. I think it would be good to use the Python interface to write data in the store - but I have very little information about the capabilities of GQL, I basically wrote all working database code using MySQL, internally with SQLite With tested on the iPhone. Will the GQL offer the same functionality which SQL can do? I have read on this site that he does not support the involvement of questions, apart from this is it really relational?

Actually I think my question is whether the APL usually works with SQL backend, which works with Google's app engine with GKL?

I hope it is clear ... any guidance is great.

True, Google App Engine is a very cool product, but datastore is a different animal MySQL Database Not to say that what you need can not be done with GAE datastore; Although it can take some freshness on your end

The most important thing is that you get the right notice from the beginning that GAE uses object-relational mapping for its data storage scheme is mandatory The object graph is maintained in the database, maintaining the properties and relationships of other objects. In many cases the ORM (Object Relational Mapping) map is quite good on top of a relational database (how it works hibernate). Although mapping is not correct and you will find that you have to make changes to continue your data. In addition, GAE has some unique relationships that make things a bit complicated. A problem that makes me so nervous, is not able to query for the specialty path: eg "Select ... where dog.owner.name = 'bob'". These are the rules that force you to read and understand how GAE data collection works before you jump in.

I think GAE can work well in your situation. It can take some time to understand the firmness of ORM in general, and in particular GAE Datastore


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