[Qgis-developer] morph delimited-text-provider to generic table-provider?

[Neumann, Andreas]

Hi, 

There are probably two different issues/use cases here: 

1. Enabling geometries for already loaded layers (what Richard and
Raymond initially suggested) 

2. Loading geometryless layers through OGR (or other providers) with the
option to define geometry columns. Ideally this could all be done in one
step - without having to first load the layer geometryless and then
having to do option 1) above as a separate step. 

The UI implications are different for the two cases. 2) should go
directly into the OGR loading dialogue, 1) perhaps in the layer
properties or maybe in addition in the attribute table. 

Andreas 

On 2016-07-11 11:17, Richard Duivenvoorde wrote:

> On 2016-07-11 10:43, Nyall Dawson wrote: 
> 
>> I still wonder if (in the ideal world) the delimited text provider be
>> retired and all the extra features it has (wkt, regex, etc) ported
>> over to OGRs csv reader. Then the provider would become just a user
>> friendly front end for configuring the OGR data source. Benefits would
>> be less code for us to maintain + write support, plus other projects
>> could also take advantage of these features.
>> 
>> Disadvantages? It'd take a bunch of work :p
> 
> While I agree that the OGR-data dialogs could have a make-over, I think the point we want to make is missed in this way: create layer from whatever table is already loaded in QGIS (via whatever provider). Matthias is also right: you can probably do that via Generators (to be fixed first) or Virtual Layers... but I just tried and I could not easily figure out how to do this having loaded the an excel with the following columns:
> name,x,y
> a,0,0
> b,10,10
> c,20,20
> d,30,30
> Off course making the ui for this more user-friendly is maybe the best option.
> 
> Doing this via a plugin like Chris proposes is also possible but to us that looks like reimplementing the TD-gui again....
> 
> Regards,
> 
> Richard
> 
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