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The plugin allows to select records through tables based on relationships one-to-one or one-to-many specified inside a Qgis project.

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The QGIS plugin allows by a single click on the plugin-button to select records through tables based on relationships one-to-one or one-to-many specified inside a QGIS project.

Authors: Luca Mandolesi, Salvatore Larosa

Collaborators: Andrea Borruso, Salvatore Fiandaca

This plugin has an awesome history:

Original thread (it)

A first post by Andrea Borruso

The original python macro by Salvatore Larosa

A videotutorial by Salvatore Fiandaca where it's showed the use of python macro by Salvatore Larosa: https://www.youtube.com/watch?v=PRDftcPWNg8

One more videotutorial by Salvatore Fiandaca for testing the macro python code embedded inside selectFromRelations plugin: https://www.youtube.com/watch?v=4lXRnsMO-qI

The plug-in was cited on MDPI Journal: https://www.mdpi.com/2220-9964/7/2/49/htm

Plugin Select by Relationship v3

The plugin allows you to select records through tables based on one-to-one or one-to-many relationships specified within a QGIS project. After the installation a tool bar with three buttons will appear:

  • the first icon: 'Allows selections by relationship' activates/deactivates the plugin;
  • the second icon Select Relationship, a drop-down menu, allows you to activate the project reports; by default no relation is selected, so the plugin does not work;
  • the third icon 'settings' has three options:
    • Zoom to Feature to of Parent Layer;
    • Select Feature(s) of Child From Parent Layer;
    • Active Parent Layer;

video Salvatore Fiandaca: link

Plugin SelectByRelationshipv3

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The plugin allows to select records through tables based on relationships one-to-one or one-to-many specified inside a Qgis project.

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