CODEWITHSUNDEEP
grailscollections
pragmus
pragmus

Reputation: 4063

Impossible to create a field in domain class with ArrayList type in Grails

I need to create a domain class and I want to do a field there with ArrayList<String> type. But when I open a db-table, I can't find new field with ArrayList<String> type. It's impossible to create. But I can add to db-table a new field with String-type instead of ArrayList<String>. Where is cause? And which type of collection can I use instead of ArrayList<String> to I can successfully use it in domain class?

Upvotes: 0

Views: 126

Answers (1)

MattTYXM
MattTYXM

Reputation: 133

Unless you are using a nosql database, you will simply create another table. In my example below, you would end up with two tables in the database... test and test_a. If you are using a nosql DB then you would get one document with an embedded list.

class Test {
    List<String> a

    static hasMany = [
        a: String
    ]
}

Upvotes: 1

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