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I am a beginner at PyQGIS.

I am trying to create a plugin, which will be used to Add, Delete, and Edit the Feature.

It is more customized than which is provided by QGIS (2.2).

I am capturing the Points using RubberBand API and then Add the attributes for the feature using openFeatureForm(). The openFeatureForm() takes default values as NULL.

What I want is to customize this form. Like, populate some values with a Combobox (to allow a user to select the required values). Also for fields like the date, I want to put DateTimePicker() widget in the form.

So Is it possible to customize the form provided by openFeatureForm()?

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For customize feature form you should make form in QtDesigner and set ui to you layer. https://qgis.org/api/2.2/classQgsVectorLayer.html#aed365f469a74156a577500bfdd0fdc80

example: my_vector_layer.setEditForm("C:/my_form.ui")

note: very important input widgets in form might have actually that name as in layer

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QGIS provides some UI widget types from the layer field config.

  • "Value Map" providing a combo box
  • "Date/Time" providing a date picker

To set these field widgets from Python, try this (pyqgis 2.18):

formConfig = layer.editFormConfig()
formConfig.setSuppress(False) # open edit form by default

i = layer.fields().indexFromName('combo-field')
formConfig.setNotNull(i, True) # input required
formConfig.setWidgetType(i, 'ValueMap')
formConfig.setWidgetConfig(i, {
    'label': 'fieldvalue',
    'label2': 'value2',
})

So for basic UI widgets you don't need to create a custom edit widget. However if you need to validate field inputs based on other fields, you should create a custom edit widget.


To explore the available fields, use the QGIS UI: In the Fields tab in the layer properties, you can set up certain input types for each field. enter image description here

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