Laravel5 framework entry (4) end, laravel end _ PHP Tutorial

Laravel5 framework entry (4) and laravel. Laravel5 framework entry (4). The laavel end Page and comments will use the one-to-many relationship provided by Eloquent ". In the end, we will get the prototype of the individual blog system Laravel 5 framework entry (4 ).

Pages and comments will use the one-to-many relationship provided by Eloquent ". In the end, we will get a prototype of a personal blog system and assign a large assignment for practical practice.

1. first recognized Eloquent

Laravel Eloquent ORM is a very important part of Laravel and one of the reasons why Laravel is so popular. The Chinese document is:

1. http://laravel-china.org/docs/5.0/eloquent

2. http://www.golaravel.com/laravel/docs/5.0/eloquent/

In the previous tutorial, the created learnlaravel5/app/Page. php is a Eloquent Model class:

<?php namespace App;use Illuminate\Database\Eloquent\Model;class Page extends Model { //}

To learn more about Eloquent, read a series of articles: Laravel Eloquent

2. create a Comment model

First, create a new table to store Comment. run the following command:

The code is as follows:
Php artisan make: model Comment

After successful modification, the corresponding location of the migration file learnlaravel5/database/migrations/*** _ create_comments_table.php is:

Schema::create('comments', function(Blueprint $table){ $table->increments('id'); $table->string('nickname'); $table->string('email')->nullable(); $table->string('website')->nullable(); $table->text('content')->nullable(); $table->integer('page_id'); $table->timestamps();});

Then run:

The code is as follows:
Php artisan migrate

Go to the database. the comments table is already there.

3. create a one-to-multiple relationship"

Modify the Page model:

<?php namespace App;use Illuminate\Database\Eloquent\Model;class Page extends Model { public function hasManyComments() {  return $this->hasMany('App\Comment', 'page_id', 'id'); }}

Okay ~ The relationship between models in Eloquent is so simple.

Relationship between models-http://laravel-china.org/docs/5.0/eloquent#relationships

4. frontend submission

Modify the Comment model:

<?php namespace App;use Illuminate\Database\Eloquent\Model;class Comment extends Model { protected $fillable = ['nickname', 'email', 'website', 'content', 'page_id'];}

Add a route entry:

The code is as follows:
Route: post ('comment/store', 'commentscontroller @ store ');

Run the following command to create the CommentsController:

The code is as follows:
Php artisan make: controller CommentsController

Modify CommentsController:

<? Php namespace App \ Http \ Controllers; use App \ Http \ Requests; use App \ Http \ Controllers \ Controller; use Illuminate \ Http \ Request; use Redirect, Input; use App \ Comment; class CommentsController extends Controller {public function store () {if (Comment: create (Input: all () {return Redirect :: back ();} else {return Redirect: back ()-> withInput ()-> withErrors ('comment posting failed! ');}}}

Modify the View learnlaravel5/resources/views/pages/show. blade. php:

@ Extends ('_ layouts. default') @ section ('content ')⬅Else back to homepage {$ page-> title }}
{{$ Page-> updated_at }}
 
  
{$ Page-> body }}
 
 
@ If (count ($ errors)> 0)
    Whoops!There were some problems with your input.

    
 
 

  
  
@ Foreach ($ errors-> all () as $ error)
  
  
{$ Error }}
@ Endforeach
 
 
   
@ Endif
     
Script function reply (a) {var nickname =. parentNode. parentNode. firstChild. nextSibling. getAttribute ('data'); var textArea = document. getElementById ('newformcontent'); textArea. innerHTML = '@' + nickname + '';} script
@ Foreach ($ page-> hasManyComments as $ comment)
     
@ If ($ comment-> website) website }}" >{{ $ comment-> nickname }}@ else {{{ $ comment-> nickname }}@ endif {{$ comment-> created_at }}
     
      
{{$ Comment-> content }}
     
     
Reply
    
@ Endforeach
 
@ Endsection

The frontend comment function is complete.

View results:

5. background management

Modify basic view learnlaravel5/resources/views/app. blade. php:

 
  
  
  Laravel 
  
  
  
  
  
  
  
  Toggle NavigationLearn Laravel 5
  
  
  
  
 
   
   
  
Background homepage
  
  
 
  
  
 
   
   
  
Manage comments
  
  
 
  
  
 

  
   
@ If (Auth: guest ())
   
  
Login
   
   
  
Register
@ Else
   
  
{Auth: user ()-> name }} 
   
 
    
Logout
 
   
 
@ Endif
  
 
  
  
 
  
 
 @ Yield ('content ')