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androidrealmnullable

Storing null values in realm using Android

Previously, when there was no stable version of realm for Java (Android), we could not store null values in realm and we had to perform some unnatural hack to be able to do so, as explained in this post.

But as of now realm 1.0 is released, are there any update about being able to store null value?

For example : unfortunate cases when there is no field in JSON which I want to store in realm after parsing but haven't handled it manually.

I have the following code: 

realmObject.setData(jsonObject.getString("SELECTOR"));

the program flow stops and exits the block the code is located inside.

the logcat shows

W/System.err: org.json.JSONException: No value for SELECTOR

But when I do:

realmObject.setData(null);

The program flow does not stop and continues across my realm statement realmObject.setData(null);

In some cases, there is no value for the tag "SELECTOR" in my Json file. And I want it to be null in default.

Solution

  • I actually found out that the problem is actually with just :

    jsonObject.getString("SELECTOR")

    not the whole statement:

    realmObject.setData(jsonObject.getString("SELECTOR"));

    so the fix for me was 

    realmObject.setData(jsonObject.optString("SELECTOR"));