How to save dynamical fields data to database in laravel5 - php

Question

How to save dynamical fields to database the problem is i don't know the names of fields we have module the user will add fields with name dynamically and i will save that fields names in database when the user checks the form for example he added fields in posts form so i want to save that fields data to database.Here's my code
<form>
<input type="text" name="firstname" id="firstname">
<?php foreach($extrafields as $extrafields1 )
{
?>
<input type="<?php $extrafields1->type; ?>" name="<?php $extrafields1->name; ?>" id="<?php $extrafields1->id; ?>" <?php $extrafields1->extraparameters; ?>>
<?php
}
</form>

Answer 1

If you can't define the name of the columns in the database, you'll have to save the data as JSON. So you'd create a column on your model called extra_parameters that would be a text column. When you post the form data, you'd need to update the model something like this:
//remove the expected parameters so you only have the extra ones
$extraparams = $request->except(['firstname','...']);
$model->extra_parameters = $extraparams;
You should also cast the column to an array in your model. This allows you to set $model->extra_parameters using an array, and it will automatically convert it to JSON when saving to the DB. It also lets you use $model->extra_parameters['param_name'] to access the fields.
//in your model file
protected $casts = [
'extra_parameters' => 'array'
];
see the array casting section here for more: https://laravel.com/docs/master/eloquent-mutators#attribute-casting