Question

我正在尝试从数据库中删除所有文档，但我想保留视图。所以我试过

//First, get all DesignDocument for the current database
List<DesignDocument> dbDesigns = cloudant.getDesignDocumentManager().list();

//Now, we delete the database           
cloudantClient.deleteDB(_DatabaseName);

            //now we create the database again
cloudant = cloudantClient.database(_DatabaseName, true);

//finally, try to add the DesignDocuments back
            if (dbDesigns != null && dbDesigns.size() > 0) {
                for (DesignDocument dDoc : dbDesigns) {
                    Response response = cloudant.getDesignDocumentManager().put(dDoc);
                    System.out.println(response);
                }
            }

但我在

时遇到错误

Response response = cloudant.getDesignDocumentManager().put(dDoc);


java.lang.IllegalArgumentException: rev should be null

    at com.cloudant.client.org.lightcouch.internal.CouchDbUtil.assertNull(CouchDbUtil.java:72)
    at com.cloudant.client.org.lightcouch.CouchDbClient.put(CouchDbClient.java:410)
    at com.cloudant.client.org.lightcouch.CouchDbClient.put(CouchDbClient.java:394)
    at com.cloudant.client.org.lightcouch.CouchDatabaseBase.save(CouchDatabaseBase.java:196)
    at com.cloudant.client.api.Database.save(Database.java:710)
    at com.cloudant.client.api.DesignDocumentManager.put(DesignDocumentManager.java:122)

还有其他方法来保存视图吗？

Answer 1

我怀疑是因为文档修订属性（_rev）在dDoc中设置而引发错误。但是，由于在数据库中找不到具有匹配id的文档，put方法会引发错误。在调用put

之前，尝试使用setRevision方法将修订版设置为null

dDoc.setRevision(null);
Response response = cloudant.getDesignDocumentManager().put(dDoc);

无法将DesignDocuments放回去

1 个答案: