Hi Tyler,

The message is not related to virtual fields.

Can you open an issue report and specify exactly how to reproduce the issue?

Thank you
Matthias

On 09/20/2016 01:13 PM, Tyler Veinot wrote:
> 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 <tylerkvei...@gmail.com
> <mailto:tylerkvei...@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 <amcani...@gmail.com
>     <mailto:amcani...@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
>         <tylerkvei...@gmail.com <mailto:tylerkvei...@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
>             <tylerkvei...@gmail.com <mailto:tylerkvei...@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;
> 
>                 ‚ÄčOf 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
>                 <tylerkvei...@gmail.com <mailto:tylerkvei...@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
>                     <matth...@opengis.ch <mailto:matth...@opengis.ch>>
>                     wrote:
> 
>                         Hi Tyler,
> 
>                         Here is the blog post I wrote for this feature:
> 
>                         http://blog.vitu.ch/10112013-1201/qgis-relations
>                         <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/
>>                         
>> <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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