[Qgis-user] Ho retrieve the attributealias list

[Andrea Peri]

Hi,

yes , my goal was to retrieve the aliases.

To reach this information I plan to use this function:

            fldDescr = fld.attributeDisplayName()

The attributeAlias give me the aliases when availables, but when they
are not filled it return a null (or empty) string.
Instead the attributeDisplayName() return the Alias or the original FieldName.

A.


2015-11-02 15:28 GMT+01:00 Matthias Kuhn <matthias at opengis.ch>:
> Hi
>
> layer.attributeList() works for me, I really don't know what goes wrong
> there for you. But it's a quite silly functions since the attribute
> indexes were changed to always be sequential. Now it just delivers a
> list each numbers from 0..count-1. So your enumerate will allways give
> you [(0,0)..(n-1, n-1)].
>
> That said, what you probably want to use is layer.attributeAliases().
> That gives you a mapping of field names to aliases.
> Or [(idx, layer.attributeAlias(idx)) for idx in
> range(layer.fields().count())] if you really want to use the field indexes.
>
> Best,
> Matthias
>
> On 11/02/2015 02:28 PM, Andrea Peri wrote:
>> Hi,
>>
>> I need to retrieve a list of attribute alias.
>> To do this, I try this code:
>>
>> for lid, orientation in self.templateTable.model().getObjectIter():
>>    layer = QgsMapLayerRegistry.instance().mapLayer(lid)
>>        for idx, fld in enumerate(layer.attributeList()):
>> ...
>>
>> The qgis report me this error:
>>
>>     for idx, fld in enumerate(layer.attributeList()):
>> AttributeError: 'QgsVectorLayer' object has no attribute 'attributeList'
>>
>> But I see the AttributeList is available in that clas as reported from the
>> help.
>>
>> http://www.qgis.org/api/classQgsVectorLayer.html#a9fdee4a58551d7e1424c8f66ab6c14a0
>>
>> Perhaps I'm wrong something or the documentation API is obsolete ?
>>
>> Thx.
>>
>>
>>
>
>
>
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-- 
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Andrea Peri
. . . . . . . . .
qwerty àèìòù
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