[GRASS-dev] [GRASS GIS] #3778: where field in wxgui layer manager d.vect display missing value on workspace import

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1

#3778: where field in wxgui layer manager d.vect display missing value on
workspace import
--------------------------+---------------------------------
Reporter: balagates | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone:
Component: wxGUI | Version: svn-releasebranch76
Keywords: d.vect where | CPU: OSX/Intel
Platform: MacOSX |
--------------------------+---------------------------------
In the WX d.vect Selection tab the "where" field is blank after importing
a GXW workspace file containing a "where" value (example workspace vector
parameters below). The preview of the d.vect command at the bottom of
the window is also missing the "where" parameter. The other parameters in
this workspace file (fill_color and icon) are displayed properly. The
strange thing is the Map Display is using the "where" value in the
workspace file even though it is not displayed in the WX d.vect
properties. If I manually type in the same "where" value the WX d.vect
works as expected. So this appears to be only a WX d.vect Selection
display problem after import from a GXW workspace file.

{{{
         <layer type="vector" name="mrds_az@brett" checked="0"
opacity="1.000000">
             <task name="d.vect">
                 <parameter name="map">
                     <value>mrds_az@brett</value>
                 </parameter>
                 <parameter name="where">
                     <value>COMMOD1='Gold'</value>
                 </parameter>
                 <parameter name="fill_color">
                     <value>orange</value>
                 </parameter>
                 <parameter name="icon">
                     <value>basic/box</value>
                 </parameter>
             </task>
         </layer>
}}}

I believe this worked fine in 7.4.1. I first noticed the problem in the
7.6.0 downloaded from the Grass site on my macOS 10.12.6.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/3778&gt;
GRASS GIS <https://grass.osgeo.org>

2

#3778: where field in wxgui layer manager d.vect display missing value on
workspace import
------------------------+---------------------------------
  Reporter: balagates | Owner: grass-dev@…
      Type: defect | Status: new
  Priority: normal | Milestone:
Component: wxGUI | Version: svn-releasebranch76
Resolution: | Keywords: d.vect where
       CPU: OSX/Intel | Platform: MacOSX
------------------------+---------------------------------

Comment (by balagates):

I noticed in the layer manager when a line with a d.vect "where" parameter
is selected the status bar shows the d.vect command including the "where"
and other parameters. I also noticed that when you open a properties
dialog (CmdPanel) for that vector the d.vect command is also shown in the
dialog windows status bar but the "where" parameter has been removed.
Debugging I see the "where" parameter is in the get_cmd() thru the end of
GUI.ParseCommand() but it disappeared after the following code in
./gui_core/forms.py UpdateThread.run() is run.

{{{
             pBind = self.task.get_param(uid, element='wxId',
raiseError=False)
             if pBind:
                 pBind['value'] = ''
}}}

This may not be a bug by itself but seems related. What I cannot find is
a way for the "where" value imported by the Open Workspace to initialize
the dialog "where" value. The value I expect is destroyed in the above
code but maybe the initialization should happen elsewhere? As far as I
can tell this aspect of the code has not changed since 7.4 and I thought
this might have been working in 7.4 (not sure though). Other parameters
such as "icon" are not affected. There appears to be special handling for
SqlWhereSelect type parameters.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/3778#comment:1&gt;
GRASS GIS <https://grass.osgeo.org>