Creates all 7 routes for the resource to cover CRUD functionality

Route::resource('posts', 'PostsController');

These routes are:

GET

at

posts

to list all the posts

POST

at

posts

to store new post

GET

at

posts/create

to show form for creating new post

GET

at

posts/{post}

to show the post

PUT

at

posts/{post}

to update the post

DELETE

at

posts/{post}

to delete the post

GET

at

posts/{post}/edit

to show edit form

Makes controller for

Posts

php artisan make:controller PostsController

With the following basic content

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class Postscontroller extends Controller
{
    //
}

Creates controller and empty methods in it (with appropriate comments)

php artisan make:controller PostsController --resource

The methods are:

index()

- Displays a list of the resource.

create()

- Shows the form for creating a new resource

store(Request $request)

- Stores a newly created resource in storage

show($id)

- Displays the specified resource

edit($id)

- Shows the form for editing the specified resource

update(Request $request, $id)

- Updates the specified resource in storage

destroy($id)

- Removes the specified resource from storage

Pass parameter to view using

with

method

public function about() {
        $param1 = 'this is a parameter of about us page';
        return view('pages/about')->with('title', $param1);
}

Content of the blade template

@extends('layouts.app')

@section('cntnt')
    <h3>abt us {{$title}}</h3>
@endsection

public function services() {
        $data = [
            'title' => 'langs',
            'languages' => ['PHP', 'Java', 'Python']
        ];
        return view('pages/services')->with($data);
}

Receive the passed array

@extends('layouts.app')

@section('cntnt')
    <h3>{{$title}}</h3>
    @if(count($languages))
        @foreach($languages as $language)
            <li>{{$language}}</li>
        @endforeach
    @endif
@endsection

Makes model called

Post

php artisan make:model Post

With the following basic content

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    //
}

Creates

Post

model and also migrations to create table for the model

php artisan make:model Post -m

The migration file location is

database/migrations/2020_09_02_041219_create_posts_table.php

Returns plain text

public function contact() {
        return 'Under Construction';
}

Returns HTML

public function about() {
        return '<h1>About the site</h1>details...';
}

Returns view located at

resources/views/pages/services.blade.php

public function services() {
        return view('pages/services');
}

In order to upload several files at once we need to specify

multiple

attribute and append

[]

to input name

<input type="file" multiple="multiple" name="files[]" placeholder="Attach file"/>

To validate show errors on client side we have to append input name with

.*

Complete example of the

form-group

<div class="form-group">
    <label for="files">Attach File</label> &nbsp;
    <i id="add_new_file" class="ki ki-plus text-success pointer" title="Add New File"></i>
    <input type="file" class="form-control mb-2 {{ $errors->has('files.*') ? 'is-invalid' : '' }}" multiple="multiple" name="files[]" placeholder="Attach file"/>
    @if($errors->has('files.*'))
        <div class="invalid-feedback">
            <strong>{{ $errors->first('files.*') }}</strong>
        </div>
    @endif
</div>

Server side validation of mime types

public function rules()
{
    return [
        'comment' => 'sometimes|nullable|min:2|max:255',
        'files.*' => 'sometimes|nullable|mimes:pdf,docx,xlsx,pptx,rar,zip,png,jpg',
    ];
}

It's necessary the validator key

files

to be appended with the same symbols

.*

Lists logged in user's posts on dashboard

$user_id = auth()->user()->id;
$user = User::find($user_id);
return view('dashboard')->with('posts', $user->posts);

The relationship caused problems We should not write this many to many relationship inside User's model if we use Spatie permissions package

public function roles()
{
    return $this->belongsToMany(Role::class, 'model_has_roles', 'model_id', 'role_id');
}

$errors->has('accountable_id')

did not work

@if($errors->has('accountable_id'))
    <div class="invalid-feedback">
        <strong>{{ $errors->first('accountable_id') }}</strong>
    </div>
@endif

Until

is-invalid

class was specified

class="form-control {{ $errors->has('accountable_id') ? 'is-invalid' : '' }}"

The complete example

<div class="form-group">
    <label for="exampleSelect2">Accountable <span class="text-danger">*</span></label>
    <select class="form-control {{ $errors->has('accountable_id') ? 'is-invalid' : '' }}" id="accountable_id" name="accountable_id">
        <option value="">Select Accountable</option>
        @foreach($users as $accountable)
            <option value="{{ $accountable->id }}" {{ $accountable_id == $accountable->id ? 'selected' : '' }}>{{ $accountable->name }}</option>
        @endforeach
    </select>
    @if($errors->has('accountable_id'))
        <div class="invalid-feedback">
            <strong>{{ $errors->first('accountable_id') }}</strong>
        </div>
    @endif
</div>