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

[Raymond Nijssen]

Great idea! ;)

Question is where to implement it in the GUI. It overlaps the
functionality in the delimited text reader. Like pointing to the x and y
columns or choosing a column containing wkt.

Maybe it could be a 2 steps process? Step 1 is importing any table and
step 2 is creating a spatial layer from it. But we would loose the quick
"Add delimited text layer" functionality.

Any ideas?

@Paolo, which plugin can do this? XyTools?

Regards,
Raymond




On 09-07-16 11:14, Paolo Cavallini wrote:
> Agreed. There is a plugin doing this, but of course having it as a
> standard function is desirable.
> Thanks for raising this.
> 
> Il 9 luglio 2016 12:00:38 EEST, Richard Duivenvoorde
> <rdmailings at duif.net> ha scritto:
> 
>     Hi Devs,
> 
>     Raymond Nijssen had an (I think) intriguing idea:
> 
>     QGIS can open different types of table-data: dbf, excel etc etc
> 
>     But if the excel contains an x,y,wkt column, you have to save it to
>     csv/tsv first, to be able to use the delimited-text-provider to open it
>     as a layer.
> 
>     His idea: can't we use the delimited-text-provider for all tables that
>     are open in QGIS immediately?
> 
>     Had a look into the code
> 
>     https://github.com/qgis/QGIS/blob/master/src/providers/delimitedtext/qgsdelimitedtextfile.cpp#L583
> 
>     which 'just' looks like a QTextStream:
> 
>     https://github.com/qgis/QGIS/blob/master/src/providers/delimitedtext/qgsdelimitedtextfile.h#L352
> 
>     And
>     according to this:
>     https://forum.qt.io/topic/63310/how-to-save-a-treeview-as-csv-file-in-qt
> 
>     It is easy to create a textstream from QModel (in which we have the data
>     I think???)...
> 
>     So Question:
>     - (to devs): would this indeed be doable/easy?
>     - (to UI's): should the Delimited Text File dialog be updated then (or
>     only with a 'open excisting table button'?
>     - should we rename the provider to 'table' provider.
> 
>     Comments/Opinions?
> 
>     Regards,
> 
>     Richard Duivenvoorde
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> -- 
> Paolo Cavallini
> www.faunalia.eu <http://www.faunalia.eu>
> 
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