Updating Item from Pivot Table Fields - laravel

Question

I have item_color and item_size pivot tables, and would like to update my size and color fields using their field values, and an not exactly sure where to start. Here's what I have so far.
ItemSize.php
<?php
class ItemSize extends \Eloquent
{
protected $table = 'item_size';
protected $fillable = [];
public function item() {
return $this->belongsTo('Item');
}
}
ItemColor.php
<?php
class ItemColor extends \Eloquent
{
protected $table = 'item_color';
protected $fillable = [];
public function item() {
return $this->belongsTo('Item');
}
}
VendorController
public function postVendorUpdateItems ($id)
{
$input = Input::all();
$items = Item::find($id);
$validator = Validator::make($input,
[ 'item_name' => 'max:50',
'item_id' => 'max:50',
'normalprice' => 'numeric',
'karmaprice' => 'numeric',
'asin' => 'max:50',
]);
if($validator->passes())
{
$items->name = $input['item_name'];
$items->normalprice = $input['normalprice'];
$items->karmaprice = $input['karmaprice'];
$items->asin = $input['asin'];
$items->id = $input['item_id'];
$items->save();
return Redirect::route('account-vendor-index')
->with('global', 'You have updated your item.');
}
return Redirect::route('account-vendor-index')
->withErrors($validator)
->with('global', 'Your item could not be updated.');
}
View
<form class="form-horizontal" role="form" method="post" action="{{url('account/vendor/update/items')}}/{{$item->id}}">
<input type="hidden" id="brand_id" placeholder="brand_id" value="{{$brand->id}}" name="brand_id">
<input type="hidden" id="item_id" placeholder="item_id" value="{{$item->id}}" name="item_id">
<div class="form-group">
<label for="colors" class="col-xs-3 control-label">Colors</label>
<div class="col-xs-6">
<input type="text" class="form-control input-sm" id="colors" name="colors" placeholder="#foreach($item->colors as $color){{$color->color}}#endforeach" value="">
</div>
<button type="" class="btn btn-primary btn-sm">Add color</button>
<div class="clear"></div>
<div class="col-xs-offset-3 showColors">
#foreach($item->colors as $color)
{{$color->color}}
#endforeach
</div>
</div>
<div class="form-group">
<label class="col-xs-3 control-label">Sizes</label>
<div class="col-xs-9">
<select id="selectSizes" multiple="multiple" class="form-control selectSizes" name="sizes">
<option value="XS (0-2)">XS (0-2)</option>
<option value="S (4-6)">S (4-6)</option>
<option value="M (8-10)">M (8-10)</option>
<option value="L (12-14)">L (12-14)</option>
<option value="XL (16-18)">XL (16-18)</option>
<option value="XXL (20-22)">XXL (20-22)</option>
</select>
</div>
</div>
<div class="form-group bot-0">
<div class="col-xs-offset-3 col-xs-9">
<button type="submit" class="btn btn-main btn-sm">Save changes</button>
</div>
</div>
</form>

Answer 1

item_size and item_color are not pivot tables. They are in fact a one to one relationship with your schema. If want you truly want are pivot tables, you need to define a color and a size table, then create a many-to-many relationship. See here: https://laravel.com/docs/master/eloquent-relationships
Then to update related models, you'll use the attach, sync, detach, etc. methods.
Also, what version of Laravel are you running? If you're running 5.1+ look into form request validation. See here: https://laravel.com/docs/master/validation#form-request-validation
That will remove all the validation logic from your controller.