make certain creation between form and field in database in laravel - laravel

Question

want to produce data exclusive to some field in database, so i add them in my view create . but there is an error cannot be null. even though the field is nullable.
this my view form.blade.php
<form action="" method="POST">
#csrf
<div class="box-body">
<div class="form-group">
<label for="">Project *</label>
<select class="form-control select2" style="width: 100%;" name="project_id">
<option>Select One</option>
#foreach($projects as $id => $project)
<option value="{{$id}}">{{$project}}</option>
#endforeach
</select>
</div>
<div class="form-group">
<label for="">Story # Meeting Name *</label>
<input type="text" class="form-control" name="user_story">
</div>
<div class="form-group">
<label for="">Category *</label>
<select class="form-control select2" style="width: 100%;" name="task_category">
<option>Select One</option>
#foreach($task_categories as $task_category)
<option value="{{$task_category->task_category}}">{{$task_category->task_category}}</option>
#endforeach
</select>
</div>
<div class="form-group">
<label for="">Estimated *</label>
<input type="text" class="form-control" name="estimated_time">
</div>
</div>
<div class="box-footer">
<a href="">
<button type="submit" class="btn btn-primary col-md-12" style="border-radius : 0px;">SAVE</button>
</a>
</div>
</form>
this my request
public function rules()
{
return [
'project_id',
'task_category',
'estimated_time',
'spent_time' => 'nullable',
'user_story' => 'nullable',
'story/meeting_name' => 'nullable',
'assign' => 'nullable',
'percentage' => 'nullable',
'lateness' => 'nullable',
'index' => 'nullable',
];
}
this my controller
public function store(OngoingRequest $request)
{
// dd($request->all());
$spentime = SpentTime::create([
'project_id' => request('project_id'),
'user_story' => request ('user_story'),
'task_category' => request('task_category'),
'estimated_time' => request('estimated_time'),
'spent_time' => request('spent_time'),
'assign' => request('assign'),
'story/meeting_name' => request('story/meeting_name'),
'percentage'=> request('percentage'),
'lateness' => request('lateness'),
'index'=> request('index'),
]);
return redirect()->route('plan.index');
}
and the error :
error
fields that i don't want to fill and not in the form must be filled. but im not need that.

Answer 1

set spent_time filed default value other wise set a nullable value
$table->string('spent_time')->nullable();
$table->boolean('spent_time')->default(0);