Question

我想将url作为属性返回给我的网上论坛。当返回单个Group时，我可以从GetGroup（）方法中做到这一点，但是当我在GetGroups（）方法中运行代码（返回Groups的集合）时，我只会得到null。我以为也许我在滥用迭代器，但是我可以用硬编码值更新集合中的对象。从GetGroups（）调用时，似乎LinkGenerator找不到我的uri。

我不确定是否有路由问题，或者只是不了解其工作原理。

public Observable<QueryResult> insert(Fetchable fetchable) {

        Query query = new Query.QueryBuilder().insert(fetchable).build();

        return Observable.create(emitter -> {
            CollectionReference collectionReference = getCollectionReference(fetchable);
            DocumentReference documentReference;
            if(fetchable.getType() == Fetchable.Type.USER){
                //USER type uses User UID from FireBase Authentication
                documentReference = collectionReference.document(fetchable.getRemoteId());
            }else{
                documentReference = collectionReference.document();
                String id = documentReference.getId();
                fetchable.setRemoteId(id);
            }
            Timber.d(documentReference.getPath());
            documentReference.set(fetchable).addOnSuccessListener(aVoid -> {
                QueryResult queryResult = new QueryResult(query, fetchable);
                Timber.d(queryResult.toString());
                emitter.onNext(queryResult);
                emitter.onComplete();
            }).addOnFailureListener(e ->{
                QueryResult queryResult = new QueryResult(query, e);
                Timber.d(queryResult.toString());
                emitter.onNext(queryResult);
                emitter.onComplete();
            });
        });

public final class Institution implements Fetchable {


    public static final String KEY = "institution";
    @PrimaryKey(autoGenerate = true)
    private int localId;
    private String remoteId;
    private String name;
    private String postalCode;
    private List<String> instructionProviderIds;
    private List<String> adminIds;
    private String creationDate;
    private String lastUpdate;
    private String createdBy;
    private String lastUpdatedBy;
    private List<String> accessList;

    @Ignore
    private final Fetchable.Type type = Type.INSTITUTION;

    @Ignore
    private Institution() {
        instructionProviderIds = new ArrayList<>();
        adminIds = new ArrayList<>();
        accessList = new ArrayList<>();
    }

    public Institution(int localId, String remoteId, String name, String postalCode, List<String> instructionProviderIds, List<String> adminIds, String creationDate, String lastUpdate, String createdBy, String lastUpdatedBy, List<String> accessList) {
        this.localId = localId;
        this.remoteId = remoteId;
        this.name = name;
        this.postalCode = postalCode;
        this.instructionProviderIds = instructionProviderIds;
        this.adminIds = adminIds;
        this.creationDate = creationDate;
        this.lastUpdate = lastUpdate;
        this.createdBy = createdBy;
        this.lastUpdatedBy = lastUpdatedBy;
        this.accessList = accessList;
    }

    public int getLocalId() {
        return localId;
    }

    public String getRemoteId() {
        return remoteId;
    }

    public void setRemoteId(String remoteId) {
        this.remoteId = remoteId;
    }

    public String getLastUpdate() {
        return lastUpdate;
    }

    @Override
    public Type getType() {
        return type;
    }

    @Override
    public Date getCreatedOnDate() {
        return DateConverter.stringToDate(creationDate);
    }

    @Override
    public Date getLastUpdateOnDate() {
        return DateConverter.stringToDate(lastUpdate);
    }

    @Override
    public String getCreatedBy() {
        return null;
    }

    @Override
    public String getLastUpdatedBy() {
        return null;
    }

    @Override
    public List<String> getAccessList() {
        return null;
    }

    @Override
    public void grantAccess(User user) {

    }

    public String getName() {
        return name;
    }

    public String getPostalCode() {
        return postalCode;
    }

    public List<String> getInstructionProviderIds() {
        return instructionProviderIds;
    }

    public List<String> getAdminIds() {
        return adminIds;
    }

    public String getCreationDate() {
        return creationDate;
    }

 public final class User implements Fetchable {

    public static final String KEY = "user";

    private String remoteId;
    private String email;
    private String displayName;
    private String creationDate;
    private String lastUpdate;
    private String createdBy;
    private String lastUpdatedBy;
    private List<String> accessList;
    @Ignore
    private final Fetchable.Type type = Type.USER;

    private User() {
        accessList = new ArrayList<>();
    }


    public User(String remoteId, String email, String displayName, String creationDate, String lastUpdate, String createdBy, String lastUpdatedBy, List<String> accessList) {
        this.remoteId = remoteId;
        this.email = email;
        this.displayName = displayName;
        this.creationDate = creationDate;
        this.lastUpdate = lastUpdate;
        this.createdBy = createdBy;
        this.lastUpdatedBy = lastUpdatedBy;
        this.accessList = accessList;
    }

    public static String getID() {
        return KEY;
    }


    public String getRemoteId() {
        return remoteId;
    }

    public void setRemoteId(String remoteId) {
        this.remoteId = remoteId;
    }

    @Override
    public Type getType() {
        return type;
    }

    @Override
    public Date getCreatedOnDate() {
        return DateConverter.stringToDate(creationDate);
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getDisplayName() {
        return displayName;
    }

    public void setDisplayName(String displayName) {
        this.displayName = displayName;
    }

    public String getCreationDate() {
        return creationDate;
    }


    public String getLastUpdate() {
        return lastUpdate;
    }


    @Override
    public Date getLastUpdateOnDate() {
        return DateConverter.stringToDate(lastUpdate);
    }

    @Override
    public String getCreatedBy() {
        return null;
    }

    @Override
    public String getLastUpdatedBy() {
        return null;
    }

    @Override
    public List<String> getAccessList() {
        return null;
    }

    @Override
    public void grantAccess(User user) {

    }

}

Answer 1

在int providerId之前添加[FromRoute]似乎已修复该问题。我不知道为什么。我改用了How to scanf only integer?，但肯定是[FromRoute]修复了它。

LinkGenerator不会在所需的操作方法之外建立链接

1 个答案: