[Qgis-user] qgsRelationReferenceWidget

Tue Sep 20 04:13:56 PDT 2016

I don't know what I am doing wrong here, I set this up multiple times using
every different relationship I have. I even rebuilt the design using
simpler tables. The drop down doesn't populate and when I try to use the
green "plus" button all I get is a mini dump and a crash. The log file says
in the exception "The thread tried to read from or write to a virtual
address for which it does not have the appropriate access". I do have a
virtual field but I am not writing to it, it is just there to display the
table data in a more appealing way, and I am not writing or using it in the
relationship so I cannot see it being an issue. I can also write data from
within QGIS directly to the tables so I must have permission.
Any thoughts?
Tyler

On Fri, Sep 16, 2016 at 7:44 AM, Tyler Veinot <tylerkveinot at gmail.com>
wrote:

> Andrew;
> Well that was simple, thank you. I didn't even think to look there; I was
> trying to add a standard push button and associate it with save.
> Now I just have to solve everything else.
> Thanks again.
> Tyler
>
> On Thu, Sep 15, 2016 at 4:22 PM, Andrew <amcaninch at gmail.com> wrote:
>
>> Regarding your second question, in QTDesigner you can change the default
>> buttonBox properties to include a "Save" or "Apply" button.
>>
>>
>> On Thu, Sep 15, 2016 at 8:17 AM, Tyler Veinot <tylerkveinot at gmail.com>
>> wrote:
>>
>>> Not having much luck with this, I managed to get the
>>> qgsRelationReferenceWidget to show me a list of addresses but I cannot get
>>> it to write the wo_id and unique_id to my table.
>>> On a different note, is there an ability to create a "save"? the "ok"
>>> button closes the form completely. I just want to "save" my work order to
>>> write its values to the wo_table and continue editing.
>>> Tyler
>>>
>>> On Tue, Sep 13, 2016 at 9:35 AM, Tyler Veinot <tylerkveinot at gmail.com>
>>> wrote:
>>>
>>>> Matthias;
>>>> Ooop's I forgot to add that I was building the form in Qt Designer and
>>>> not from within QGIS, although with this information is really good and is
>>>> showing me things I didn't quite understand before. I am a very visual
>>>> person I find it hard to understand things without seeing it in a diagram
>>>> or some other example. Took me forever to figure out dog gears and
>>>> differential gears until I tore apart my first bicycle and rear end; as
>>>> soon as I seen it I got it.
>>>> This is my relationship defined in QGIS thus far....
>>>>
>>>> When I add an address to the work order I need to write the wo_id of my
>>>> work order and my unique_id of my address to my jtbl_cwo table. So when I,
>>>> or someone, opens a work order it will show them a list of address
>>>> associated to that one work order. Also need to do the same thing with
>>>> primary assets, so the form will look something like this in QGIS;
>>>>
>>>> Of course the unique_id will be referencing a value from the
>>>> civic_points "address" but that is that I am trying to accomplish. I did it
>>>> in LibreOffice and Access but I would like to consolidate it all into one
>>>> database with one interface, i.e. QGIS. That way I can edit features, add
>>>> assets, and do most of my daily tasks in one application.
>>>> Is there an example of this being done in QGIS anywhere?
>>>> Tyler
>>>>
>>>>
>>>>
>>>> On Tue, Sep 13, 2016 at 8:37 AM, Tyler Veinot <tylerkveinot at gmail.com>
>>>> wrote:
>>>>
>>>>> Matthias;
>>>>> Thanks, I don't know what I would do without you! Coding isn't
>>>>> normally an issue but that tutorial didn't quite explain where to put the
>>>>> coding. When I opened the UI file in IDLE it looked like XML, and there
>>>>> were no other files associated with the form. I also opened the "see code"
>>>>> option and it was the same looked like XML; it might have been C++ but I
>>>>> have no training or experience with C++ so I wouldn't know if it looked
>>>>> similar to XML from the "untrained eye" point of view.
>>>>> Going to be doing some testing on the versioning bit here this week,
>>>>> hope to have something a little more concrete to say about it soon.
>>>>> Tyler
>>>>>
>>>>> On Tue, Sep 13, 2016 at 2:58 AM, Matthias Kuhn <matthias at opengis.ch>
>>>>> wrote:
>>>>>
>>>>>> Hi Tyler,
>>>>>>
>>>>>> Here is the blog post I wrote for this feature:
>>>>>>
>>>>>> http://blog.vitu.ch/10112013-1201/qgis-relations
>>>>>> Just configuration, no coding, I hope that helps.
>>>>>>
>>>>>> Cheers
>>>>>> Matthias
>>>>>>
>>>>>>
>>>>>> On 12/09/16 22:56, Tyler Veinot wrote:
>>>>>>
>>>>>> All;
>>>>>> Trying to make a form for QGIS that has a form within a form so that
>>>>>> I can link and display entries from another table similar to this tuorial;
>>>>>> https://medspx.fr/blog/Qgis/better_qgis_forms_part_three/
>>>>>> I think I need to use qgsValueRelationRefernceWidget but I cannot
>>>>>> find any tutorials on it.
>>>>>> Thanks;
>>>>>> Tyler
>>>>>>
>>>>>>
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>>>>>
>>>>
>>>
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