JSON column in Laravel does not receive values of others columns - php

Question

I'm trying to create a json that collects all the information from the other columns, but the following error happens when I create a new record:
SQLSTATE[HY000]: General error: 1364 Field 'properties' doesn't have a default value
Migration
public function up()
{
Schema::create('hunters', function (Blueprint $table) {
$table->id();
$table->string('name_hunter', 50);
$table->integer('year_hunter');
$table->decimal('height_hunter', 3,2);
$table->decimal('weight_hunter', 5,2);
$table->string('type_hunter', 30);
$table->string('type_nen', 30);
$table->string('type_sangue', 3);
$table->timestamp('register_date')->useCurrent();
$table->timestamp('data_updated')->useCurrent()->useCurrentOnUpdate();
$table->json('properties');
});
}
HunterModel.php
protected $casts = [
'properties' => 'array'
];
HunterController.php
public function create()
{
return view('create');
}
public function store(HunterRequest $request)
{
$validations = $request->validated();
HunterModel::create($validations);
return redirect('/');
}
create.php
<form action="{{ url("create") }}" method="POST">
{{ csrf_field() }}
<div class="form_group">
<div for="nome_hunter">Name:
<input type="text" class="form-control" name="name_hunter" maxlength="50" value="{{ old('name_hunter') }}">
</div>
</div>
<br>
...
<div class="form_group">
<div for="type_blood">Type blood:
<select class="form-control" name="type_blood">
<option {{ old('type_blood') == '' ? 'selected' : ''}} value="">Choose the type blood</option>
<option {{ old('type_blood') == 'A+' ? 'selected' : ''}} value="A+">A+</option>
<option {{ old('type_blood') == 'A-' ? 'selected' : ''}} value="A-">A-</option>
<option {{ old('type_blood') == 'B+' ? 'selected' : ''}} value="B+">B+</option>
<option {{ old('type_blood') == 'B-' ? 'selected' : ''}} value="B-">B-</option>
<option {{ old('type_blood') == 'AB+' ? 'selected' : ''}} value="AB+">AB+</option>
<option {{ old('type_blood') == 'AB-' ? 'selected' : ''}} value="AB-">AB-</option>
<option {{ old('type_blood') == 'O+' ? 'selected' : ''}} value="O+">O+</option>
<option {{ old('type_blood') == 'O-' ? 'selected' : ''}} value="O-">O-</option>
</select>
</div>
</div>
<br>
</form>
What is the necessary change in the form so that it is possible for the JSON to collect the information?

Answer 1

You need a default value for the properties field. Add this to your migration and re-run it (be sure to revert the last migration).
$table->json('properties')->default(json_encode([]));