test.py
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from qgis.core import * |
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from qgis.gui import * |
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from qgis.utils import * |
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"""
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fun1() works. All features are selected.
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Usage: fun1(1)
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"""
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@qgsfunction(args='auto', group='Custom') |
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def fun1(value1, feature, parent): |
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return value1
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"""
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fun2() works. All features are selected.
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Usage: fun2(2)
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"""
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@qgsfunction(args='auto', group='Custom') |
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def fun2(value1, feature, parent): |
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return value1 + 45 |
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"""
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No features are selected on executing fun3().
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Usage: fun3()
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"""
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@qgsfunction(args=0, group='Custom') |
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def fun3(value1, feature, parent): |
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if feature['osm_id']: |
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return True |
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else:
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return False |
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"""
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fun4() is a workaround I tried to select features.
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It is slow and not a good solution to the problem.
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Usage: fun4()
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"""
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@qgsfunction(args=0, group='Custom') |
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def fun4(value1, feature, parent): |
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layer=iface.activeLayer() |
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iter=layer.getFeatures() |
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for feature in iter: |
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return feature['osm_id'] |