Examples with TreeReference org.javarosa.core.model.instance.TreeReference used on opensource projects

Example 56 with TreeReference

use of org.javarosa.core.model.instance.TreeReference in project javarosa by opendatakit.

the class FormDef method copyItemsetAnswer.

public void copyItemsetAnswer(QuestionDef q, TreeElement targetNode, IAnswerData data, boolean midSurvey) throws InvalidReferenceException {
    ItemsetBinding itemset = q.getDynamicChoices();
    TreeReference targetRef = targetNode.getRef();
    TreeReference destRef = itemset.getDestRef().contextualize(targetRef);
    List<Selection> selections = null;
    if (data instanceof SelectMultiData) {
        selections = (List<Selection>) data.getValue();
    } else if (data instanceof SelectOneData) {
        selections = new ArrayList<Selection>(1);
        selections.add((Selection) data.getValue());
    }
    List<String> selectedValues;
    if (itemset.valueRef != null) {
        selectedValues = new ArrayList<String>(selections.size());
        for (Selection selection : selections) {
            selectedValues.add(selection.choice.getValue());
        }
    } else {
        selectedValues = new ArrayList<String>(0);
    }
    // delete existing dest nodes that are not in the answer selection
    HashMap<String, TreeElement> existingValues = new HashMap<String, TreeElement>();
    List<TreeReference> existingNodes = exprEvalContext.expandReference(destRef);
    for (TreeReference existingNode : existingNodes) {
        TreeElement node = getMainInstance().resolveReference(existingNode);
        if (itemset.valueRef != null) {
            String value = itemset.getRelativeValue().evalReadable(this.getMainInstance(), new EvaluationContext(exprEvalContext, node.getRef()));
            if (selectedValues.contains(value)) {
                // cache node if in selection
                existingValues.put(value, node);
            // and already exists
            }
        }
        // delete from target
        targetNode.removeChild(node);
    }
    // copy in nodes for new answer; preserve ordering in answer
    for (int i = 0; i < selections.size(); i++) {
        Selection s = selections.get(i);
        SelectChoice ch = s.choice;
        TreeElement cachedNode = null;
        if (itemset.valueRef != null) {
            String value = ch.getValue();
            if (existingValues.containsKey(value)) {
                cachedNode = existingValues.get(value);
            }
        }
        if (cachedNode != null) {
            cachedNode.setMult(i);
            targetNode.addChild(cachedNode);
        } else {
            getMainInstance().copyItemsetNode(ch.copyNode, destRef, this);
        }
    }
    dagImpl.copyItemsetAnswer(getMainInstance(), getEvaluationContext(), destRef, targetNode, midSurvey);
}

Example 57 with TreeReference

use of org.javarosa.core.model.instance.TreeReference in project javarosa by opendatakit.

the class FormDef method findQuestionByRef.

public static QuestionDef findQuestionByRef(TreeReference ref, IFormElement fe) {
    if (fe instanceof FormDef) {
        ref = ref.genericize();
    }
    if (fe instanceof QuestionDef) {
        QuestionDef q = (QuestionDef) fe;
        TreeReference bind = FormInstance.unpackReference(q.getBind());
        return (ref.equals(bind) ? q : null);
    } else {
        for (int i = 0; i < fe.getChildren().size(); i++) {
            QuestionDef ret = findQuestionByRef(ref, fe.getChild(i));
            if (ret != null)
                return ret;
        }
        return null;
    }
}

Example 58 with TreeReference

use of org.javarosa.core.model.instance.TreeReference in project javarosa by opendatakit.

the class FormDef method getNumRepetitions.

public int getNumRepetitions(FormIndex index) {
    List<Integer> indexes = new ArrayList<Integer>();
    List<Integer> multiplicities = new ArrayList<Integer>();
    List<IFormElement> elements = new ArrayList<IFormElement>();
    if (!index.isInForm()) {
        throw new RuntimeException("not an in-form index");
    }
    collapseIndex(index, indexes, multiplicities, elements);
    if (!(elements.get(elements.size() - 1) instanceof GroupDef) || !((GroupDef) elements.get(elements.size() - 1)).getRepeat()) {
        throw new RuntimeException("current element not a repeat");
    }
    // so painful
    TreeElement templNode = mainInstance.getTemplate(index.getReference());
    TreeReference parentPath = templNode.getParent().getRef().genericize();
    TreeElement parentNode = mainInstance.resolveReference(parentPath.contextualize(index.getReference()));
    return parentNode.getChildMultiplicity(templNode.getName());
}

Example 59 with TreeReference

use of org.javarosa.core.model.instance.TreeReference in project javarosa by opendatakit.

the class FormDef method populateDynamicChoices.

/**
 * Identify the itemset in the backend model, and create a set of
 * SelectChoice objects at the current question reference based on the data
 * in the model.
 * <p/>
 * Will modify the itemset binding to contain the relevant choices
 *
 * @param itemset The binding for an itemset, where the choices will be populated
 * @param curQRef A reference to the current question's element, which will be
 *                used to determine the values to be chosen from.
 */
public void populateDynamicChoices(ItemsetBinding itemset, TreeReference curQRef) {
    getEventNotifier().publishEvent(new Event("Dynamic choices", new EvaluationResult(curQRef, null)));
    List<SelectChoice> choices = new ArrayList<SelectChoice>();
    List<TreeReference> matches = itemset.nodesetExpr.evalNodeset(this.getMainInstance(), new EvaluationContext(exprEvalContext, itemset.contextRef.contextualize(curQRef)));
    DataInstance fi = null;
    if (// We're not dealing
    itemset.nodesetRef.getInstanceName() != null) // with the default
    // instance
    {
        fi = getNonMainInstance(itemset.nodesetRef.getInstanceName());
        if (fi == null) {
            throw new XPathException("Instance " + itemset.nodesetRef.getInstanceName() + " not found");
        }
    } else {
        fi = getMainInstance();
    }
    if (matches == null) {
        throw new XPathException("Could not find references depended on by" + itemset.nodesetRef.getInstanceName());
    }
    for (int i = 0; i < matches.size(); i++) {
        TreeReference item = matches.get(i);
        // String label =
        // itemset.labelExpr.evalReadable(this.getMainInstance(), new
        // EvaluationContext(exprEvalContext, item));
        String label = itemset.labelExpr.evalReadable(fi, new EvaluationContext(exprEvalContext, item));
        String value = null;
        TreeElement copyNode = null;
        if (itemset.copyMode) {
            copyNode = this.getMainInstance().resolveReference(itemset.copyRef.contextualize(item));
        }
        if (itemset.valueRef != null) {
            // value = itemset.valueExpr.evalReadable(this.getMainInstance(),
            // new EvaluationContext(exprEvalContext, item));
            value = itemset.valueExpr.evalReadable(fi, new EvaluationContext(exprEvalContext, item));
        }
        // SelectChoice choice = new
        // SelectChoice(labelID,labelInnerText,value,isLocalizable);
        SelectChoice choice = new SelectChoice(label, value != null ? value : "dynamic:" + i, itemset.labelIsItext);
        choice.setIndex(i);
        if (itemset.copyMode)
            choice.copyNode = copyNode;
        choices.add(choice);
    }
    if (choices.size() == 0) {
        // throw new
        // RuntimeException("dynamic select question has no choices! [" +
        // itemset.nodesetRef + "]");
        // When you exit a survey mid way through and want to save it, it seems
        // that Collect wants to
        // go through all the questions. Well of course not all the questions
        // are going to have answers
        // to chose from if the user hasn't filled them out. So I'm just going
        // to make a note of this
        // and not throw an exception.
        Std.out.println("Dynamic select question has no choices! [" + itemset.nodesetRef + "]. If this occurs while filling out a form (and not while saving an incomplete form), the filter condition may have eliminated all the choices. Is that what you intended?\n");
    }
    itemset.clearChoices();
    itemset.setChoices(choices, this.getLocalizer());
}

Example 60 with TreeReference

use of org.javarosa.core.model.instance.TreeReference in project javarosa by opendatakit.

the class FormDef method deleteRepeat.

/**
 * Deletes the inner-most repeat that this node belongs to and returns the
 * corresponding FormIndex. Behavior is currently undefined if you call this
 * method on a node that is not contained within a repeat.
 *
 * @param index
 * @return
 */
public FormIndex deleteRepeat(FormIndex index) {
    List<Integer> indexes = new ArrayList<Integer>();
    List<Integer> multiplicities = new ArrayList<Integer>();
    List<IFormElement> elements = new ArrayList<IFormElement>();
    collapseIndex(index, indexes, multiplicities, elements);
    // TODO: should probably check to make sure size > 0
    for (int i = elements.size() - 1; i >= 0; i--) {
        IFormElement e = elements.get(i);
        if (e instanceof GroupDef && ((GroupDef) e).getRepeat()) {
            break;
        } else {
            indexes.remove(i);
            multiplicities.remove(i);
            elements.remove(i);
        }
    }
    // build new formIndex which includes everything
    // up to the node we're going to remove
    FormIndex newIndex = buildIndex(indexes, multiplicities, elements);
    TreeReference deleteRef = getChildInstanceRef(newIndex);
    TreeElement deleteElement = mainInstance.resolveReference(deleteRef);
    TreeReference parentRef = deleteRef.getParentRef();
    TreeElement parentElement = mainInstance.resolveReference(parentRef);
    int childMult = deleteElement.getMult();
    parentElement.removeChild(deleteElement);
    // update multiplicities of other child nodes
    for (int i = 0; i < parentElement.getNumChildren(); i++) {
        TreeElement child = parentElement.getChildAt(i);
        if (child.getName().equals(deleteElement.getName()) && child.getMult() > childMult) {
            child.setMult(child.getMult() - 1);
            // When a group changes it multiplicity, then all caches of its
            // children must clear.
            child.clearChildrenCaches();
        }
    }
    dagImpl.deleteRepeatGroup(getMainInstance(), getEvaluationContext(), deleteRef, parentElement, deleteElement);
    return newIndex;
}