Examples with DataBindingSource grails.databinding.DataBindingSource used on opensource projects

Example 1 with DataBindingSource

use of grails.databinding.DataBindingSource in project grails-core by grails.

the class DataBindingUtils method bindToCollection.

/**
     * For each DataBindingSource provided by collectionBindingSource a new instance of targetType is created,
     * data binding is imposed on that instance with the DataBindingSource and the instance is added to the end of
     * collectionToPopulate
     *
     * @param targetType The type of objects to create, must be a concrete class
     * @param collectionToPopulate A collection to populate with new instances of targetType
     * @param collectionBindingSource A CollectionDataBindingSource
     * @since 2.3
     */
public static <T> void bindToCollection(final Class<T> targetType, final Collection<T> collectionToPopulate, final CollectionDataBindingSource collectionBindingSource) throws InstantiationException, IllegalAccessException {
    final GrailsApplication application = Holders.findApplication();
    GrailsDomainClass domain = null;
    if (application != null) {
        domain = (GrailsDomainClass) application.getArtefact(DomainClassArtefactHandler.TYPE, targetType.getName());
    }
    final List<DataBindingSource> dataBindingSources = collectionBindingSource.getDataBindingSources();
    for (final DataBindingSource dataBindingSource : dataBindingSources) {
        final T newObject = targetType.newInstance();
        bindObjectToDomainInstance(domain, newObject, dataBindingSource, getBindingIncludeList(newObject), Collections.emptyList(), null);
        collectionToPopulate.add(newObject);
    }
}

Example 2 with DataBindingSource

use of grails.databinding.DataBindingSource in project grails-core by grails.

the class DataBindingUtils method bindObjectToDomainInstance.

/**
     * Binds the given source object to the given target object performing type conversion if necessary
     *
     * @param domain The GrailsDomainClass instance
     * @param object The object to bind to
     * @param source The source object
     * @param include The list of properties to include
     * @param exclude The list of properties to exclude
     * @param filter The prefix to filter by
     *
     * @see grails.core.GrailsDomainClass
     *
     * @return A BindingResult or null if it wasn't successful
     */
@SuppressWarnings("unchecked")
public static BindingResult bindObjectToDomainInstance(GrailsDomainClass domain, Object object, Object source, List include, List exclude, String filter) {
    BindingResult bindingResult = null;
    GrailsApplication grailsApplication = null;
    if (domain != null) {
        grailsApplication = domain.getApplication();
    }
    if (grailsApplication == null) {
        grailsApplication = Holders.findApplication();
    }
    try {
        final DataBindingSource bindingSource = createDataBindingSource(grailsApplication, object.getClass(), source);
        final DataBinder grailsWebDataBinder = getGrailsWebDataBinder(grailsApplication);
        grailsWebDataBinder.bind(object, bindingSource, filter, include, exclude);
    } catch (InvalidRequestBodyException e) {
        String messageCode = "invalidRequestBody";
        Class objectType = object.getClass();
        String defaultMessage = "An error occurred parsing the body of the request";
        String[] codes = getMessageCodes(messageCode, objectType);
        bindingResult = new BeanPropertyBindingResult(object, objectType.getName());
        bindingResult.addError(new ObjectError(bindingResult.getObjectName(), codes, null, defaultMessage));
    } catch (Exception e) {
        bindingResult = new BeanPropertyBindingResult(object, object.getClass().getName());
        bindingResult.addError(new ObjectError(bindingResult.getObjectName(), e.getMessage()));
    }
    if (domain != null && bindingResult != null) {
        BindingResult newResult = new ValidationErrors(object);
        for (Object error : bindingResult.getAllErrors()) {
            if (error instanceof FieldError) {
                FieldError fieldError = (FieldError) error;
                final boolean isBlank = BLANK.equals(fieldError.getRejectedValue());
                if (!isBlank) {
                    newResult.addError(fieldError);
                } else if (domain.hasPersistentProperty(fieldError.getField())) {
                    final boolean isOptional = domain.getPropertyByName(fieldError.getField()).isOptional();
                    if (!isOptional) {
                        newResult.addError(fieldError);
                    }
                } else {
                    newResult.addError(fieldError);
                }
            } else {
                newResult.addError((ObjectError) error);
            }
        }
        bindingResult = newResult;
    }
    MetaClass mc = GroovySystem.getMetaClassRegistry().getMetaClass(object.getClass());
    if (mc.hasProperty(object, "errors") != null && bindingResult != null) {
        ValidationErrors errors = new ValidationErrors(object);
        errors.addAllErrors(bindingResult);
        mc.setProperty(object, "errors", errors);
    }
    return bindingResult;
}