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<p class="MsoNormal"><span style="color:#1F497D">Just an update with some progress in case anyone needs this in the future:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have managed to add buttons (zoom to feature and add feature) to my parent form by passing the selected ids from the child features.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">childFormWidget = parentForm.findChildren(QgsRelationEditorWidget)[0]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">childForm = childFormWidget</span>
<span style="color:#1F497D">.findChildren(QgsRelationEditorWidget)[0]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">featureManager = childForm</span>
<span style="color:#1F497D">.featureSelectionManager()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">infraManager.selectionChanged.connect(changeSelection)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">def changeSelection(deselected, selected):<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"># set whatever you need to using the selected featureids.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This isn’t ideal as I’ve got buttons on the main form relating to the child records. Ideally I’d love to be able to have those buttons as part of the QgsRelationEditor toolbar but I think that probably means
going into the QGIS source and that’s beyond me.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Tom<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:EN-GB"> Thomas
Colley <br>
<b>Sent:</b> 20 March 2016 11:47<br>
<b>To:</b> qgis-user@lists.osgeo.org<br>
<b>Subject:</b> 1-Many relation with spatial child layer<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have used the excellent QGIS relations to set up a custom form on a road layer (parent, lines) and defects (child, points).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there any way to access spatial tools for the child record. For example, I would love to have a zoom to feature button for the child record and instead of the plus button to add a new record (attributes only) I would like to have a button
to capture a new point on the child layer.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Failing that, is there a method in Python to access the current child record? I have had to add the child form as a standard widget in QT designer as it crashes whenever I try and add the custom QgsRelationReference widget. If I could access
the attributes/geom of the child record from the main form I could create the buttons I need.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks in advance for any guidance!<o:p></o:p></p>
<p class="MsoNormal"><br>
Tom<o:p></o:p></p>
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