Examples with InstanceContainer com.haulmont.cuba.gui.model.InstanceContainer used on opensource projects

Example 1 with InstanceContainer

use of com.haulmont.cuba.gui.model.InstanceContainer in project cuba by cuba-platform.

the class AbstractComponentGenerationStrategy method setOptionsLoader.

protected void setOptionsLoader(CategoryAttribute categoryAttribute, LookupField lookupField, ContainerValueSource valueSource) {
    InstanceContainer<?> container = valueSource.getContainer();
    Entity entity = container.getItemOrNull();
    if (entity != null) {
        List options = dynamicAttributesTools.loadOptions((BaseGenericIdEntity) entity, categoryAttribute);
        // noinspection unchecked
        lookupField.setOptions(new ListOptions(options));
    }
    container.addItemChangeListener(e -> {
        List options = dynamicAttributesTools.loadOptions((BaseGenericIdEntity) e.getItem(), categoryAttribute);
        // noinspection unchecked
        lookupField.setOptions(new ListOptions(options));
    });
    List<CategoryAttribute> dependsOnAttributes = categoryAttribute.getConfiguration().getDependsOnAttributes();
    if (dependsOnAttributes != null && !dependsOnAttributes.isEmpty()) {
        List<String> dependsOnAttributesCodes = dependsOnAttributes.stream().map(a -> DynamicAttributesUtils.encodeAttributeCode(a.getCode())).collect(Collectors.toList());
        container.addItemPropertyChangeListener(e -> {
            if (dependsOnAttributesCodes.contains(e.getProperty())) {
                List options = dynamicAttributesTools.loadOptions((BaseGenericIdEntity) e.getItem(), categoryAttribute);
                // noinspection unchecked
                lookupField.setOptions(new ListOptions(options));
                if (!options.contains(lookupField.getValue())) {
                    // noinspection unchecked
                    lookupField.setValue(null);
                }
            }
        });
    }
}

Example 2 with InstanceContainer

use of com.haulmont.cuba.gui.model.InstanceContainer in project cuba by cuba-platform.

the class RemoveOperation method commitIfNeeded.

protected void commitIfNeeded(Collection<? extends Entity> entitiesToRemove, CollectionContainer container, ScreenData screenData) {
    List<? extends Entity> entitiesToCommit = entitiesToRemove.stream().filter(entity -> !entityStates.isNew(entity)).collect(Collectors.toList());
    boolean needCommit = !entitiesToCommit.isEmpty();
    if (container instanceof Nested) {
        InstanceContainer masterContainer = ((Nested) container).getMaster();
        String property = ((Nested) container).getProperty();
        MetaClass masterMetaClass = masterContainer.getEntityMetaClass();
        MetaProperty metaProperty = masterMetaClass.getPropertyNN(property);
        needCommit = needCommit && (metaProperty.getType() != MetaProperty.Type.COMPOSITION);
    }
    if (needCommit) {
        CommitContext commitContext = new CommitContext();
        for (Entity entity : entitiesToCommit) {
            commitContext.addInstanceToRemove(entity);
        }
        dataManager.commit(commitContext);
        for (Entity entity : entitiesToRemove) {
            screenData.getDataContext().evict(entity);
        }
    } else {
        for (Entity entity : entitiesToRemove) {
            screenData.getDataContext().remove(entity);
        }
    }
}

Example 3 with InstanceContainer

use of com.haulmont.cuba.gui.model.InstanceContainer in project cuba by cuba-platform.

the class LookupBuilderProcessor method handleSelectionWithContainer.

protected <E extends Entity> void handleSelectionWithContainer(LookupBuilder<E> builder, CollectionContainer<E> collectionDc, Collection<E> itemsFromLookup) {
    if (itemsFromLookup.isEmpty()) {
        return;
    }
    Collection<E> selectedItems = transform(itemsFromLookup, builder);
    boolean initializeMasterReference = false;
    Entity masterItem = null;
    MetaProperty inverseMetaProperty = null;
    // update holder reference if needed
    if (collectionDc instanceof Nested) {
        InstanceContainer masterDc = ((Nested) collectionDc).getMaster();
        String property = ((Nested) collectionDc).getProperty();
        masterItem = masterDc.getItem();
        MetaProperty metaProperty = masterItem.getMetaClass().getPropertyNN(property);
        inverseMetaProperty = metaProperty.getInverse();
        if (inverseMetaProperty != null && !inverseMetaProperty.getRange().getCardinality().isMany()) {
            Class<?> inversePropClass = extendedEntities.getEffectiveClass(inverseMetaProperty.getDomain());
            Class<?> dcClass = extendedEntities.getEffectiveClass(collectionDc.getEntityMetaClass());
            initializeMasterReference = inversePropClass.isAssignableFrom(dcClass);
        }
    }
    DataContext dataContext = UiControllerUtils.getScreenData(builder.getOrigin()).getDataContext();
    List<E> mergedItems = new ArrayList<>(selectedItems.size());
    View viewForCollectionContainer = clientConfig.getReloadUnfetchedAttributesFromLookupScreens() && collectionDc.getEntityMetaClass() != null && metadataTools.isPersistent(collectionDc.getEntityMetaClass()) ? getViewForCollectionContainer(collectionDc, initializeMasterReference, inverseMetaProperty) : null;
    for (E item : selectedItems) {
        if (!collectionDc.containsItem(item.getId())) {
            if (viewForCollectionContainer != null && !entityStates.isLoadedWithView(item, viewForCollectionContainer)) {
                item = dataManager.reload(item, viewForCollectionContainer);
            }
            // track changes in the related instance
            E mergedItem = dataContext.merge(item);
            if (initializeMasterReference) {
                // change reference, now it will be marked as modified
                mergedItem.setValue(inverseMetaProperty.getName(), masterItem);
            }
            mergedItems.add(mergedItem);
        }
    }
    collectionDc.getMutableItems().addAll(mergedItems);
}

Example 4 with InstanceContainer

use of com.haulmont.cuba.gui.model.InstanceContainer in project cuba by cuba-platform.

the class LookupBuilderProcessor method getViewForCollectionContainer.

/**
 * See {@link #getViewForField(HasValue)} javadoc.
 *
 * @return a view or null if the view cannot be evaluated
 */
@Nullable
protected <E extends Entity> View getViewForCollectionContainer(CollectionContainer<E> collectionDc, boolean initializeMasterReference, MetaProperty inverseMetaProperty) {
    View view = null;
    if (collectionDc instanceof Nested) {
        InstanceContainer masterDc = ((Nested) collectionDc).getMaster();
        View masterView = masterDc.getView();
        if (masterView != null) {
            String property = ((Nested) collectionDc).getProperty();
            ViewProperty viewProperty = masterView.getProperty(property);
            if (viewProperty != null) {
                view = viewProperty.getView();
                if (view != null && initializeMasterReference && inverseMetaProperty != null) {
                    view.addProperty(inverseMetaProperty.getName());
                }
            }
        }
    } else {
        view = collectionDc.getView();
    }
    return view;
}

Example 5 with InstanceContainer

use of com.haulmont.cuba.gui.model.InstanceContainer in project cuba by cuba-platform.

the class WebTokenList method getViewForField.

/**
 * If the value for a component is selected from the lookup screen there may be cases when lookup screen contains a list of entities loaded with a
 * view that doesn't contain all attributes, required by the token list.
 * <p>
 * The method evaluates the view that was is for loading entities in the token list
 *
 * @return a view or null if the view cannot be evaluated
 */
@Nullable
protected View getViewForField() {
    ValueSource valueSource = getValueSource();
    if (valueSource instanceof ContainerValueSource) {
        ContainerValueSource containerValueSource = (ContainerValueSource) valueSource;
        InstanceContainer container = containerValueSource.getContainer();
        View view = container.getView();
        if (view != null) {
            MetaPropertyPath metaPropertyPath = containerValueSource.getMetaPropertyPath();
            View curView = view;
            if (metaPropertyPath != null) {
                for (MetaProperty metaProperty : metaPropertyPath.getMetaProperties()) {
                    ViewProperty viewProperty = curView.getProperty(metaProperty.getName());
                    if (viewProperty != null) {
                        curView = viewProperty.getView();
                        if (curView == null)
                            return null;
                    }
                }
                MetaProperty inverseMetaProperty = metaPropertyPath.getMetaProperty().getInverse();
                if (inverseMetaProperty != null && !inverseMetaProperty.getRange().getCardinality().isMany()) {
                    curView.addProperty(inverseMetaProperty.getName());
                }
            }
            if (curView != view) {
                return curView;
            }
        }
    }
    return null;
}