laravel not in validation code example

Example 1: if any error in blade laravel

@if ($errors->any())
     @foreach ($errors->all() as $error)
         <div>{{$error}}</div>
     @endforeach
 @endif

Example 2: laravel validation

/**
 * Store a new blog post.
 *
 * @param  Request  $request
 * @return Response
 */
public function store(Request $request)
{
    $validatedData = $request->validate([
        'title' => 'required|unique:posts|max:255',
        'body' => 'required',
    ]);

    // The blog post is valid...
}

Example 3: laravel validation types

# <values> = foo,bar,...
# <field> = array field
# <characters> = amount of characters

# accepted					           # active_url
# after:<tomorrow>			           # after_or_equal:<tomorrow>
# alpha						           # alpha_dash
# alpha_num					           # array
# bail 					               # before:<today>
# before_or_equal:<today>              # between:min,max
# boolean					           # confirmed
# date						           # date_equals:<today>
# date_format:<format> 		           # different:<name>
# digits:<value>			           # digits_between:min,max
# dimensions:<min/max_with>	           # distinct
# email						           # ends_with:<values>
# exclude_if:<field>,<value>           # exclude_unless:<field>,<value>
# exists:<table>,<column>	           # file
# filled					           # gt:<field>
# gte:<field>				           # image
# in:<values>				           # in_array:<field>
# integer					           # ip
# ipv4                                 # ipv6  
# json						           # lt:<field>
# lte:<field>       		           # max:<value>
# mimetypes:video/avi,...	           # mimes:jpeg,bmp,png
# min:<value>				           # not_in:<values>
# not_regex:<pattern> 		           # nullable
# numeric					           # password:<auth guard>
# present					           # regex:<pattern>
# required					           # required_if:<field>,<value>
# required_unless:<field>,<value>      # required_with:<fields>
# required_with_all:<fields>	       # required_without:<fields>
# required_without_all:<fields>        # same:<field>
# size:<characters>			           # starts_with:<values>
# string						       # timezone
# unique:<table>,<column>		       # url
# uuid

Example 4: add error to laravel validation

//setup Validator and passing request data and rules
$validator = \Validator::make(request()->all(), [
    'due_date' => 'required',
    'template' => 'required'
]);

//hook to add additional rules by calling the ->after method
$validator->after(function ($validator) {
	
    if (request('event') == null) {
    	//add custom error to the Validator
        $validator->errors()->add('event', 'Please select an event');
    }

});

//run validation which will redirect on failure
$validator->validate();

//https://dcblog.dev/laravel-adding-custom-validation-errors

Example 5: validate field for existing client laravel

unique:users,username,id,1 // table, field, idcolumn, value to ignore