Examples with ListEditor com.haulmont.cuba.gui.components.ListEditor used on opensource projects

Example 1 with ListEditor

use of com.haulmont.cuba.gui.components.ListEditor in project cuba by cuba-platform.

the class DynamicAttributeCustomFieldGenerator method generateField.

@Override
public Component generateField(Datasource datasource, String propertyId) {
    ComponentsFactory componentsFactory = AppBeans.get(ComponentsFactory.class);
    ListEditor listEditor = componentsFactory.createComponent(ListEditor.class);
    MetaPropertyPath metaPropertyPath = DynamicAttributesUtils.getMetaPropertyPath(datasource.getMetaClass(), propertyId);
    if (metaPropertyPath == null) {
        log.error("MetaPropertyPath for dynamic attribute {} not found", propertyId);
        return null;
    }
    CategoryAttribute categoryAttribute = DynamicAttributesUtils.getCategoryAttribute(metaPropertyPath.getMetaProperty());
    if (categoryAttribute == null) {
        log.error("Dynamic attribute {} not found", propertyId);
        return null;
    }
    listEditor.setEntityJoinClause(categoryAttribute.getJoinClause());
    listEditor.setEntityWhereClause(categoryAttribute.getWhereClause());
    ListEditor.ItemType itemType = listEditorItemTypeFromDynamicAttrType(categoryAttribute.getDataType());
    listEditor.setItemType(itemType);
    Metadata metadata = AppBeans.get(Metadata.class);
    Scripting scripting = AppBeans.get(Scripting.class);
    if (!Strings.isNullOrEmpty(categoryAttribute.getEntityClass())) {
        Class<?> clazz = scripting.loadClass(categoryAttribute.getEntityClass());
        if (clazz == null) {
            log.error("Unable to find class of entity {} for dynamic attribute {}", categoryAttribute.getEntityClass(), categoryAttribute.getCode());
            return null;
        }
        MetaClass metaClass = metadata.getClassNN(clazz);
        listEditor.setEntityName(metaClass.getName());
        listEditor.setUseLookupField(BooleanUtils.isTrue(categoryAttribute.getLookup()));
    }
    // noinspection unchecked
    datasource.addStateChangeListener(e -> {
        if (e.getState() == Datasource.State.VALID) {
            Object value = datasource.getItem().getValue(propertyId);
            if (value != null && value instanceof Collection) {
                listEditor.setValue(value);
            }
        }
    });
    listEditor.addValueChangeListener(e -> {
        datasource.getItem().setValue(propertyId, e.getValue());
    });
    listEditor.setWidthFull();
    return listEditor;
}