Fix Issue 1076: Implemented Select2 Initial Values #1393
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WalkthroughA new mixin, Changes
Sequence Diagram(s)sequenceDiagram
participant Form
participant Select2Widget (with Mixin)
participant SuperWidget
Form->>Select2Widget (with Mixin): render(name, value, attrs, renderer)
Select2Widget (with Mixin)->>Select2Widget (with Mixin): Normalize value (listify, parse, split)
Select2Widget (with Mixin)->>Select2Widget (with Mixin): Add missing values to choices
Select2Widget (with Mixin)->>SuperWidget: super().render(name, normalized_value, attrs, renderer)
SuperWidget-->>Select2Widget (with Mixin): Rendered HTML
Select2Widget (with Mixin)-->>Form: Rendered HTML
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📜 Recent review detailsConfiguration used: CodeRabbit UI 📒 Files selected for processing (1)
🧰 Additional context used🧬 Code Graph Analysis (1)src/dal_select2/widgets.py (1)
🪛 Pylint (3.3.7)src/dal_select2/widgets.py[refactor] 117-117: Too few public methods (1/2) (R0903) 🔇 Additional comments (4)
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Actionable comments posted: 1
🧹 Nitpick comments (1)
test_project/tests/test_widgets.py (1)
171-210: Comprehensive test coverage with room for improvement.The test class covers the main functionality well with three different scenarios. However, the tests could be more robust with proper HTML assertions and additional edge case coverage.
Consider these improvements:
- Use
assertHTMLEqualfor more reliable HTML comparison:- assert 'value="Urdu" selected' in rendered + self.assertInHTML('<option value="Urdu" selected>Urdu</option>', rendered)
- Add edge case tests for empty strings, malformed literals, and None values:
def test_select2multiple_handles_empty_values(self): class Form(forms.Form): test = forms.MultipleChoiceField( widget=select2_widget.Select2Multiple(url=reverse('test_url')), required=False, ) form = Form(initial={'test': ''}) rendered = form.as_p() # Should not crash and should render properly def test_select2multiple_handles_malformed_string(self): class Form(forms.Form): test = forms.MultipleChoiceField( widget=select2_widget.Select2Multiple(url=reverse('test_url')), required=False, ) form = Form() form.fields['test'].initial = "['malformed" # Invalid literal rendered = form.as_p() # Should fall back to comma-splitting
- Test the single value scenario with
Select2Multipleto ensure it handles non-list values correctly.
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📒 Files selected for processing (2)
src/dal_select2/widgets.py(2 hunks)test_project/tests/test_widgets.py(3 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
test_project/tests/test_widgets.py (1)
src/dal_select2/widgets.py (2)
ListSelect2(156-161)Select2Multiple(152-153)
src/dal_select2/widgets.py (1)
src/dal/widgets.py (4)
render(147-155)Select(172-173)SelectMultiple(176-177)WidgetMixin(17-169)
🪛 Pylint (3.3.7)
test_project/tests/test_widgets.py
[refactor] 25-25: Too few public methods (1/2)
(R0903)
[refactor] 174-174: Too few public methods (0/2)
(R0903)
[refactor] 186-186: Too few public methods (0/2)
(R0903)
[refactor] 199-199: Too few public methods (0/2)
(R0903)
src/dal_select2/widgets.py
[refactor] 117-117: Too few public methods (1/2)
(R0903)
🔇 Additional comments (7)
src/dal_select2/widgets.py (3)
2-2: Appropriate import for string literal parsing.The
astimport is correctly added to support safe parsing of stringified Python literals in the mixin.
152-152: Correct mixin integration with proper MRO.The mixin is properly placed first in the inheritance chain to ensure its
rendermethod is called before the parent classes.
156-160: Correct mixin integration with proper MRO.The mixin is properly placed first in the inheritance chain to ensure its
rendermethod is called before the parent classes.test_project/tests/test_widgets.py (4)
12-12: Appropriate import for DummyView.The
HttpResponseimport is correctly added to support the new DummyView class.
14-14: Appropriate import for class-based view.The
Viewimport is correctly added to support the DummyView implementation.
25-28: Clean replacement for mock in URL patterns.The
DummyViewclass provides a cleaner approach than using mocks in URL patterns, improving test maintainability.
33-33: Correct URL pattern update.The URL pattern correctly uses the new DummyView class-based view.
Implemented Fix for Issue 1076.
Select2InitialRenderMixinin dal_select2/widgets.pySelect2InitialRenderMixinin ListSelect2 and ModelSelect2 to get initial values on Django Admin for single select autocomplete and multi-select autocomplete.Select2InitialRenderMixinSummary by CodeRabbit
New Features
Tests