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feat: update RequiredValidator to support validate empty Map, List, S… #460

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feat: update RequiredValidator to support validate empty Map, List, S… #460

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61cbb46
feat: update RequiredValidator to support validate empty Map, List, S…
simonpham Aug 13, 2024
54cc8c5
refactor: remove redundant checks
simonpham Jun 14, 2025
9b5bcd9
test: add unit tests for RequiredValidator
simonpham Oct 9, 2026
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12 changes: 10 additions & 2 deletions lib/src/validators/required_validator.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,16 @@ class RequiredValidator extends Validator<dynamic> {

if (control.value == null) {
return error;
} else if (control.value is String) {
return (control.value as String).trim().isEmpty ? error : null;
} else if (control.value case String string) {
return string.trim().isEmpty ? error : null;
} else if (control.value case Map value) {
return value.isEmpty ? error : null;
} else if (control.value case List value) {
return value.isEmpty ? error : null;
} else if (control.value case Set value) {
return value.isEmpty ? error : null;
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} else if (control.value case Iterable value) {
return value.isEmpty ? error : null;
}

return null;
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