Yeah, something like that I would think.

Is there a generic set of queries that some/most/all of certain types of 
NoSQL DBs share? Mongo is nice to support but also Postgres, Redis, etc.

Are there some queries where DAL-style syntax makes sense? For example 
selecting for an item or set of items (without a join, I suppose)?

And then being able to turn any result sets into Rows object would be good.


On Monday, November 26, 2012 6:23:10 AM UTC-8, rochacbruno wrote:
>
> I think DAL has nothing to do with Mongo.
>
> It is much easier to use only PyMongo API.
>
> What we really need is a "Rows factory" it shoul take arbitrary data 
> format (can have a scheme) and will give us back a Rows object. Also it 
> should have some event binders to update, delete, insert...
>
> So programmers will do this:
>
> mydata = pymongo.whatever() # pymongo dict like objects
>
> rows = gluon.RowsFactory(mydata, scheme=myscheme, updater=lambda, 
> inserter=lambda, deleter=lambda)
>
> now we should have a "Rows" object and it could be used for grid, forms 
> etc...
>
> The problem is that it can take long time to convert things in to Rows.
>
> So the best should be a dict + events based Form, grid and other controls 
> designed specifically for these cases.
>
> Bruno Rocha
> http://rochacbruno.com.br
> mobile
>  Em 26/11/2012 04:06, "Mark Kirkwood" <mark.k...@gmail.com <javascript:>> 
> escreveu:
>
>> I am wondering if there are some deeper issues getting NoSQL support in 
>> Web2py -  for instance the model part seems pretty tied into relational 
>> ideas (e.g db.define_table and ..references db.dog etc). This design works 
>> really well and insulates developers from much of the fiddlyness of dealing 
>> directly with relation db's quirks, but the ideas themselves are clearly 
>> relational.
>>
>> The other big DAL issue would be joins..but I guess integration with GAE 
>> has covered that to some extent (tho it looks like GAE can kinda fake a 
>> join with referenced properties...might be able to do something like that 
>> with Mongo, but not for all other NoSQLs). 
>>
>> On Wednesday, November 21, 2012 11:58:35 PM UTC+13, Niphlod wrote:
>>>
>>> that is exactly the explanation of the term "experimental".
>>> The problem as always is that if noone starts to test it, it will be in 
>>> this way forever.
>>>
>>> On Tuesday, November 20, 2012 11:25:59 PM UTC+1, Simon Ashley wrote:
>>>>
>>>> The bottom line seems to be that we/ others need to start to use nosql 
>>>> engines to sort the issues. 
>>>> My guess is that, currently, critical mass is not present to rely on it 
>>>> for production sites.
>>>>
>>>>  -- 
>>  
>>  
>>  
>>
>

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