Examples with IAnswerData org.javarosa.core.model.data.IAnswerData used on opensource projects

Example 26 with IAnswerData

use of org.javarosa.core.model.data.IAnswerData in project javarosa by opendatakit.

the class FormEntryModel method createModelIfNecessary.

/**
 * For the current index: Checks whether the index represents a node which
 * should exist given a non-interactive repeat, along with a count for that
 * repeat which is beneath the dynamic level specified.
 *
 * If this index does represent such a node, the new model for the repeat is
 * created behind the scenes and the index for the initial question is
 * returned.
 *
 * Note: This method will not prevent the addition of new repeat elements in
 * the interface, it will merely use the xforms repeat hint to create new
 * nodes that are assumed to exist
 *
 * @param index The index to be evaluated as to whether the underlying model is
 *        hinted to exist
 */
private void createModelIfNecessary(FormIndex index) {
    if (index.isInForm()) {
        IFormElement e = getForm().getChild(index);
        if (e instanceof GroupDef) {
            GroupDef g = (GroupDef) e;
            if (g.getRepeat() && g.getCountReference() != null) {
                // Lu Gram: repeat count XPath needs to be contextualized for nested repeat groups
                TreeReference countRef = FormInstance.unpackReference(g.getCountReference());
                TreeReference contextualized = countRef.contextualize(index.getReference());
                IAnswerData count = getForm().getMainInstance().resolveReference(contextualized).getValue();
                if (count != null) {
                    long fullcount = ((Integer) count.getValue()).intValue();
                    TreeReference ref = getForm().getChildInstanceRef(index);
                    TreeElement element = getForm().getMainInstance().resolveReference(ref);
                    if (element == null) {
                        if (index.getTerminal().getInstanceIndex() < fullcount) {
                            try {
                                getForm().createNewRepeat(index);
                            } catch (InvalidReferenceException ire) {
                                Std.printStack(ire);
                                throw new RuntimeException("Invalid Reference while creting new repeat!" + ire.getMessage());
                            }
                        }
                    }
                }
            }
        }
    }
}

Example 27 with IAnswerData

use of org.javarosa.core.model.data.IAnswerData in project javarosa by opendatakit.

the class FormEntryPrompt method getAnswerValue.

// note: code overlap with FormDef.copyItemsetAnswer
public IAnswerData getAnswerValue() {
    QuestionDef q = getQuestion();
    ItemsetBinding itemset = q.getDynamicChoices();
    if (itemset != null) {
        if (itemset.valueRef != null) {
            List<SelectChoice> choices = getSelectChoices();
            List<String> preselectedValues = new ArrayList<String>();
            // determine which selections are already present in the answer
            if (itemset.copyMode) {
                TreeReference destRef = itemset.getDestRef().contextualize(mTreeElement.getRef());
                List<TreeReference> subNodes = form.getEvaluationContext().expandReference(destRef);
                for (int i = 0; i < subNodes.size(); i++) {
                    TreeElement node = form.getMainInstance().resolveReference(subNodes.get(i));
                    String value = itemset.getRelativeValue().evalReadable(form.getMainInstance(), new EvaluationContext(form.getEvaluationContext(), node.getRef()));
                    preselectedValues.add(value);
                }
            } else {
                List<Selection> sels;
                IAnswerData data = mTreeElement.getValue();
                if (data instanceof SelectMultiData) {
                    sels = (List<Selection>) data.getValue();
                } else if (data instanceof SelectOneData) {
                    sels = new ArrayList<Selection>(1);
                    sels.add((Selection) data.getValue());
                } else {
                    sels = new ArrayList<Selection>(0);
                }
                for (int i = 0; i < sels.size(); i++) {
                    preselectedValues.add(sels.get(i).xmlValue);
                }
            }
            // populate 'selection' with the corresponding choices (matching 'value') from the dynamic choiceset
            List<Selection> selection = new ArrayList<Selection>();
            for (int i = 0; i < preselectedValues.size(); i++) {
                String value = preselectedValues.get(i);
                SelectChoice choice = null;
                for (int j = 0; j < choices.size(); j++) {
                    SelectChoice ch = choices.get(j);
                    if (value.equals(ch.getValue())) {
                        choice = ch;
                        break;
                    }
                }
                // will no longer be an option this go around
                if (choice != null) {
                    selection.add(choice.selection());
                }
            }
            // convert to IAnswerData
            if (selection.size() == 0) {
                return null;
            } else if (q.getControlType() == Constants.CONTROL_SELECT_MULTI) {
                return new SelectMultiData(selection);
            } else if (q.getControlType() == Constants.CONTROL_SELECT_ONE) {
                // do something if more than one selected?
                return new SelectOneData(selection.get(0));
            } else {
                throw new RuntimeException("can't happen");
            }
        } else {
            // cannot map up selections without <value>
            return null;
        }
    } else {
        // static choices
        return mTreeElement.getValue();
    }
}

Example 28 with IAnswerData

use of org.javarosa.core.model.data.IAnswerData in project javarosa by opendatakit.

the class FormDef method setValue.

public void setValue(IAnswerData data, TreeReference ref, TreeElement node, boolean midSurvey) {
    IAnswerData oldValue = node.getValue();
    IAnswerDataSerializer answerDataSerializer = new XFormAnswerDataSerializer();
    if (midSurvey && dagImpl.shouldTrustPreviouslyCommittedAnswer() && objectEquals(answerDataSerializer.serializeAnswerData(oldValue), answerDataSerializer.serializeAnswerData(data))) {
        return;
    }
    setAnswer(data, node);
    Collection<QuickTriggerable> qts = triggerTriggerables(ref, midSurvey);
    dagImpl.publishSummary("New value", ref, qts);
// TODO: pre-populate fix-count repeats here?
}

Example 29 with IAnswerData

use of org.javarosa.core.model.data.IAnswerData in project javarosa by opendatakit.

the class SetValueAction method processAction.

public void processAction(FormDef model, TreeReference contextRef) {
    // Qualify the reference if necessary
    TreeReference qualifiedReference = contextRef == null ? target : target.contextualize(contextRef);
    // insert events should only trigger on the right nodes
    if (contextRef != null) {
        // strategy
        if (!contextRef.isParentOf(qualifiedReference, false)) {
            return;
        }
    }
    // TODO: either the target or the value's node might not exist here, catch and throw
    // reasonably
    EvaluationContext context = new EvaluationContext(model.getEvaluationContext(), qualifiedReference);
    Object result;
    if (explicitValue != null) {
        result = explicitValue;
    } else {
        result = XPathFuncExpr.unpack(value.eval(model.getMainInstance(), context));
    }
    AbstractTreeElement node = context.resolveReference(qualifiedReference);
    if (node == null) {
        throw new NullPointerException("Target of TreeReference " + qualifiedReference.toString(true) + " could not be resolved!");
    }
    int dataType = node.getDataType();
    IAnswerData val = Recalculate.wrapData(result, dataType);
    model.setValue(val == null ? null : AnswerDataFactory.templateByDataType(dataType).cast(val.uncast()), qualifiedReference, true);
}

Example 30 with IAnswerData

use of org.javarosa.core.model.data.IAnswerData in project javarosa by opendatakit.

the class GeoShapeAreaTest method testGeoShapeSupportForEnclosedArea.

public void testGeoShapeSupportForEnclosedArea() throws Exception {
    // Read the form definition
    String FORM_NAME = (new File(PathConst.getTestResourcePath(), "area.xml")).getAbsolutePath();
    InputStream is = null;
    FormDef formDef = null;
    is = new FileInputStream(new File(FORM_NAME));
    formDef = XFormUtils.getFormFromInputStream(is);
    // trigger all calculations
    formDef.initialize(true, new InstanceInitializationFactory());
    // get the calculated area
    IAnswerData areaResult = formDef.getMainInstance().getRoot().getChildAt(1).getValue();
    assertTrue((int) Math.rint((Double) areaResult.getValue()) == 151452);
}