Odoo with Google App Engine NDB | Porting from postgresql to NDB
I am planning to port Odoo to Google App Engine Web application. As I came to know that Odoo uses postgresql., Is it possible to port that database connections, queries and all from Postgresql db to NDB so that I can run it on Google App Engine ?
It is an explicit homegrown orm, that emboddies things like relations/constraints grouping, etc... many of which have no analog in the datastore.
So the the effort involved would become quite huge.
Higher level abstractions in odoo will depend on model methods of the orm like
def read_group(self, cr, uid, domain, fields, groupby, offset=0, limit=None, context=None, orderby=False, lazy=True):
Get the list of records in list view grouped by the given ``groupby`` fields
:param cr: database cursor
:param uid: current user id
:param domain: list specifying search criteria [['field_name', 'operator', 'value'], ...]
:param list fields: list of fields present in the list view specified on the object
:param list groupby: list of groupby descriptions by which the records will be grouped.
A groupby description is either a field (then it will be grouped by that field)
or a string 'field:groupby_function'. Right now, the only functions supported
are 'day', 'week', 'month', 'quarter' or 'year', and they only make sense for
Clearly much of this is irrelevant or not doable in the datastore, directly (groupby) but could be done in memory - hence in your own ORM replacement.
In the ORM you see a lot of counting going on (hmm that doesn't work well in datastore).
Also Odoo will depend on the locking/consistancy model of an RDBMS which is not the same as the datastores eventual consistancy. So there is a fundamental approach to be considered. If you create lots of ancestors keys to he
Asked in February 2016Viewed 3,307 timesVoted 5Answered 1 times