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TextQuestionForm.java
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TextQuestionForm.java
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package forms;
import java.util.OptionalInt;
import services.question.types.QuestionDefinitionBuilder;
import services.question.types.QuestionType;
import services.question.types.TextQuestionDefinition;
/** Form for updating a text question. */
public class TextQuestionForm extends QuestionForm {
private OptionalInt minLength;
private OptionalInt maxLength;
public TextQuestionForm() {
super();
this.minLength = OptionalInt.empty();
this.maxLength = OptionalInt.empty();
}
public TextQuestionForm(TextQuestionDefinition qd) {
super(qd);
this.minLength = qd.getMinLength();
this.maxLength = qd.getMaxLength();
}
@Override
public QuestionType getQuestionType() {
return QuestionType.TEXT;
}
public OptionalInt getMinLength() {
return minLength;
}
/**
* We use a string parameter here so that if the field is empty (i.e. unset), we can correctly set
* to an empty OptionalInt. Since the HTML input is type "number", we can be sure this string is
* in fact an integer when we parse it. If we instead used an int here, we see an "Invalid value"
* error when binding the empty value in the form.
*/
public void setMinLength(String minLengthAsString) {
this.minLength =
minLengthAsString.isEmpty()
? OptionalInt.empty()
: OptionalInt.of(Integer.parseInt(minLengthAsString));
}
public OptionalInt getMaxLength() {
return maxLength;
}
/**
* We use a string parameter here so that if the field is empty (i.e. unset), we can correctly set
* to an empty OptionalInt. Since the HTML input is type "number", we can be sure this string is
* in fact an integer when we parse it. If we instead used an int here, we see an "Invalid value"
* error when binding the empty value in the form.
*/
public void setMaxLength(String maxLengthAsString) {
this.maxLength =
maxLengthAsString.isEmpty()
? OptionalInt.empty()
: OptionalInt.of(Integer.parseInt(maxLengthAsString));
}
@Override
public QuestionDefinitionBuilder getBuilder() {
TextQuestionDefinition.TextValidationPredicates.Builder textValidationPredicatesBuilder =
TextQuestionDefinition.TextValidationPredicates.builder();
textValidationPredicatesBuilder.setMinLength(getMinLength());
textValidationPredicatesBuilder.setMaxLength(getMaxLength());
return super.getBuilder().setValidationPredicates(textValidationPredicatesBuilder.build());
}
}