Django restframework import data from another table?

Question

I'm using Django rest framework with MySQL.

Let me explain my two tables.

[article]
- articleNo(Primary key)
- content

[comment]
- articleNo(FK to article)
- userkey
- comment

I want to import comment data to artice table.

class articleDetailSerializer(serializers.ModelSerializer):
    userkey = userSerializer(read_only=True)
    likeCount = serializers.IntegerField(source='like_set.count', read_only=True)
    commentCount = serializers.IntegerField(source='comment_set.count', read_only=True)
    comment = serializers.PrimaryKeyRelatedField(many=True, read_only=True)

    class Meta:
        model = article
        fields = ('articleNo', 'userkey', 'content', 'likeCount', 'commentCount', 'comment')

class commentSerializer(serializers.ModelSerializer):
    class Meta:
         model = comment
         fields = ('articleNo', 'content', 'userkey')

When I visit /article, Current output is:

{
    "articleNo": 26,
    "userkey": {
        "userkey": "121212",
        "username": "Da"
    },
    "content": "test",
    "likeCount": 3,
    "comment": [
        1,
        2,
        3
    ]
},

What I would like instead as output is something like:

{
    "articleNo": 26,
    "userkey": {
        "userkey": "121212",
        "username": "Da"
    },
    "content": "test",
    "likeCount": 3,
    "comment": [
        {
            articleNo: 26,
            userkey: "12345",
            content: "first comment"
        },
        {
            articleNo: 26,
            userkey: "23456",
            content: "second comment"
        },
        {
            articleNo: 26,
            userkey: "33333",
            content: "third comment"
        },
    ]
},

Can it be implemented with Rest framework?

Thanks.

Answer 1

You need to change type of comment field from PrimaryKeyField to commentSerializer inside articleDetailSerializer :

class articleDetailSerializer(serializers.ModelSerializer):
    ...
    comment = commentSerializer(many=True, read_only=True)

    class Meta:
        model = article
        fields = ('articleNo', 'userkey', 'content', 'likeCount', 'commentCount', 'comment')

See details here .