Allow definition of null as default value

[emahuni]

there are many instances were I would like to define a null value

eg: endedAt should be null on creation, and the date set on ending of the model's representation. Therefore all models that don't have an endAt date set have not ended and those that are non-null have ended.

Null default makes a lot of things possible when designing models

[soupette]

I agree we should add this option in the content type builder, in the meantime you can set the default value directly in the model's attribute.

for instance:

{
  "connection": "default",
  "collectionName": "articles",
  "info": {
    "name": "article",
    "description": ""
  },
  "options": {
    "increments": true,
    "timestamps": [
      "created_at",
      "updated_at"
    ],
    "comment": ""
  },
  "attributes": {
    "title": {
      "type": "string",
      "default": null
    }
  }
}

[cayrescript]

Concordo que devemos adicionar essa opção no construtor de tipos de conteúdo. Enquanto isso, você pode definir o valor padrão diretamente no atributo do modelo.

por exemplo:

{
  "connection": "default",
  "collectionName": "articles",
  "info": {
    "name": "article",
    "description": ""
  },
  "options": {
    "increments": true,
    "timestamps": [
      "created_at",
      "updated_at"
    ],
    "comment": ""
  },
  "attributes": {
    "title": {
      "type": "string",
      "default": null
    }
  }
}

I am using it this way and it works, but when it goes into production it creates the field as empty, "".
Any idea?

[emahuni]

Oh I was doing that 🤦🏽‍♂️ but I was using waterline syntax:

{
   ...
   defaultTo: null,
}

and the admin was saying error occurred. I will try that and see if the admin doesn't throw.

Yah, but the null needs to be recognised in the admin studio.

[derrickmehaffy]

admin studio AdminUI, studio was from Strapi v1 and is no longer used. Just clarifying that for other users.

[emahuni]

ok, so what do we call this one?

[derrickmehaffy]

It's typically referred to the AdminUI.