在类com.contentful.vault.Asset上找不到要序列化的属性 [英] No properties to serialize found on class com.contentful.vault.Asset
问题描述
尝试在具有Asset属性的Firebase数据库上保存对象时遇到此错误.
在以下问题中也记录了类似的错误:
Am getting this error while trying to save an Object on the Firebase database that has an Asset property.
Similar errors have been documented in the following questions:
和其他一些人.
一些推荐的解决方案是
- 将变量声明更改为public
- 将
@Keep添加到类声明中 - 在Proguard规则中添加
-keepclassmembers class com.yourcompany.models.** { *; }
- Change variable declarations to public
- Add
@Keepto the class declaration - Add
-keepclassmembers class com.yourcompany.models.** { *; }in Proguard-rules
但是这些选项都不适合我.
but none of these options have worked for me.
我尝试过的是创建另一个类，该类是用于Vault的类的副本，然后具有一个String属性，该属性保存Asset的URL，但这似乎是重复的代码和不必要的.
What I've tried is create another class that is a replica of the class am using for Vault and then have a String property that holds the URL of the Asset but this seems like duplication of code and unnecessary.
这个问题有解决方案吗?
Is there a solution to this problem?
推荐答案
我是Mario Bodemann，他是Contentful的Java和Android SDK的维护者.
I am Mario Bodemann, a maintainer of the Java and Android SDKs of Contentful.
我也建议按照您的建议将Firebase用例和Contentful用例之间的关注点分开.
I would recommend separating the concerns between the Firebase use-case and the Contentful use-case, as you suggested too.
通过这种方式，您可以确保为Firebase提供所需的模型，并为Firebase提供所需的模型，而无需将两者混合在一起.我不认为它是重复代码，您正在重复数据.对于不同的用例来说应该没问题.
This way you can make sure to provide Firebase with a model that it needs and Contentful with a model that it needs, without intermixing both. I don't see it as repeating code, you are repeating data. And that should be alright for different use-cases.
也许有些工厂可以根据需要将一种形式转换为另一种形式.
Probably some factories for converting from one form to the other on a per need basis would be convenient too.
否则，如果您可以在一个应用程序中分享有关两者的更多使用信息，我们可以为您提供更多帮助...
Otherwise, maybe if you could share a bit more about your use of both in one app, we could be able to help you a bit more...
问候， 马里奥(Mario)
Greetings, Mario
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