Examples with Ref org.summerb.easycrud.api.dto.relations.Ref used on opensource projects

Example 1 with Ref

use of org.summerb.easycrud.api.dto.relations.Ref in project summerb by skarpushin.

the class DataSetLoaderImpl method loadOneToManyReferences.

private EntityTypeToObjectsMap loadOneToManyReferences(Map<Ref, Set<Object>> refToReferencersIds) throws NotAuthorizedException {
    Multimap<String, Entry<Ref, Set<Object>>> targetEntityToRef = HashMultimap.create();
    for (Entry<Ref, Set<Object>> entry : refToReferencersIds.entrySet()) {
        targetEntityToRef.put(entry.getKey().getToEntity(), entry);
    }
    EntityTypeToObjectsMap ret = new EntityTypeToObjectsMap();
    for (String entityTypeCode : targetEntityToRef.keySet()) {
        Collection<Entry<Ref, Set<Object>>> entries = targetEntityToRef.get(entityTypeCode);
        List<Query> queries = new ArrayList<>(entries.size());
        for (Entry<Ref, Set<Object>> entry : entries) {
            Set<Object> ids = entry.getValue();
            Ref ref = entry.getKey();
            Object firstId = ids.iterator().next();
            if (firstId instanceof Long) {
                queries.add(Query.n().in(ref.getToField(), ids.toArray(new Long[0])));
            } else if (firstId instanceof String) {
                queries.add(Query.n().in(ref.getToField(), ids.toArray(new String[0])));
            } else {
                throw new IllegalStateException("such id type is not supported: " + firstId.getClass());
            }
        }
        Query q = queries.size() == 1 ? queries.get(0) : Query.n().or(queries.toArray(new Query[0]));
        EasyCrudService service = easyCrudServiceResolver.resolveByEntityType(entityTypeCode);
        PaginatedList<HasId> results = service.query(PagerParams.ALL, q);
        ret.put(entityTypeCode, new ArrayList<>(results.getItems()));
    }
    return ret;
}

Example 2 with Ref

use of org.summerb.easycrud.api.dto.relations.Ref in project summerb by skarpushin.

the class DataSetLoaderImpl method enumerateManyToManyReferences.

private Map<Ref, Set<Object>> enumerateManyToManyReferences(DataSet dataSet, Ref[] references) {
    Map<Ref, Set<Object>> ret = new HashMap<>();
    for (Ref ref : references) {
        if (!ref.isManyToMany()) {
            continue;
        }
        String entityTypeCode = ref.getFromEntity();
        Set<Object> ids = EasyCrudDtoUtils.enumerateIds(dataSet.get(entityTypeCode).getRows().values());
        if (ids.size() != 0) {
            ret.put(ref, ids);
        }
    }
    return ret;
}

Example 3 with Ref

use of org.summerb.easycrud.api.dto.relations.Ref in project summerb by skarpushin.

the class DataSetLoaderImpl method enumerateOneToManyReferences.

private Map<Ref, Set<Object>> enumerateOneToManyReferences(DataSet dataSet, Ref[] references) {
    Map<Ref, Set<Object>> ret = new HashMap<>();
    for (Ref ref : references) {
        if (!ref.isOneToMany()) {
            continue;
        }
        String entityTypeCode = ref.getFromEntity();
        Set<Object> ids = EasyCrudDtoUtils.enumerateIds(dataSet.get(entityTypeCode).getRows().values());
        if (!ids.isEmpty()) {
            ret.put(ref, ids);
        }
    }
    return ret;
}

Example 4 with Ref

use of org.summerb.easycrud.api.dto.relations.Ref in project summerb by skarpushin.

the class DataSetLoaderImpl method loadManyToManyReferences.

private ManyToManyRefToReferenceesMap loadManyToManyReferences(Map<Ref, Set<Object>> manyToManyReferences) {
    // NOTE: Queries to same types of referencees are not grouped. Should we
    // impl this like we did for one2many?
    ManyToManyRefToReferenceesMap ret = new ManyToManyRefToReferenceesMap();
    for (Entry<Ref, Set<Object>> refToReferencersEntry : manyToManyReferences.entrySet()) {
        EasyCrudService m2mServiceTmp = easyCrudServiceResolver.resolveByEntityType(refToReferencersEntry.getKey().getM2mEntity());
        Preconditions.checkState(m2mServiceTmp instanceof EasyCrudM2mService);
        EasyCrudM2mService m2mService = (EasyCrudM2mService) m2mServiceTmp;
        Map<Object, List<HasId>> referenceeMap = m2mService.findReferenceeByReferencers(refToReferencersEntry.getValue());
        ret.put(refToReferencersEntry.getKey(), referenceeMap);
    }
    return ret;
}

Example 5 with Ref

use of org.summerb.easycrud.api.dto.relations.Ref in project summerb by skarpushin.

the class DataSetLoaderImpl method populateBackReferencesOne2Many.

private void populateBackReferencesOne2Many(EntityTypeToObjectsMap rowsMap, Map<Ref, Set<Object>> refs, DataSet dataSet) {
    for (Entry<String, List<HasId>> entry : rowsMap.entrySet()) {
        for (HasId row : entry.getValue()) {
            PropertyAccessor propertyAccessor = PropertyAccessorFactory.forBeanPropertyAccess(row);
            for (Ref ref : refs.keySet()) {
                if (!ref.getToEntity().equals(entry.getKey())) {
                    continue;
                }
                Object referencedId = null;
                try {
                    referencedId = propertyAccessor.getPropertyValue(ref.getToField());
                } catch (Throwable t) {
                    throw new RuntimeException("Failed to read property " + ref.getFromField() + " from " + row, t);
                }
                if (referencedId == null) {
                    continue;
                }
                @SuppressWarnings("deprecation") RowIdToBackReferencesMap backRefs = dataSet.get(ref.getFromEntity()).getBackRefs();
                if (backRefs.get(referencedId) == null) {
                    backRefs.put(referencedId, new RefToReferencedObjectsIdsMap());
                }
                RefToReferencedObjectsIdsMap refToObjsMap = backRefs.get(referencedId);
                if (refToObjsMap.get(ref.getName()) == null) {
                    refToObjsMap.put(ref.getName(), new HashSet<>());
                }
                refToObjsMap.get(ref.getName()).add(row.getId());
            }
        }
    }
}