cakephp-3.0 Getting started with cakephp-3.0

Remarks

Build up first 'Hello World!' application with CakePHP 3.x (Controllers , Response, View. Part 3)

Want to create a controller? There is 2 ways of creating it:

• Manually (You will be forced to manually create Controller file in src/Controller )
• Baked (Running bin/cake bake controller %controllerName% command from CLI)

If You want to create it manually, go to src/Controller folder and create file that following next pattern:

([A-Z]{1}[a-z]{1,})Controller.php

In that controller, You should define namspace , that will be used:

<?php
    namespace App\Controller;
 

Then You should name it as filename, ex. AdminiController:

use App\Controller\AppController;

class AdminController extends AppController{}
 

Inside of this class, You should create Your first method, ex. login :

public function login(){}
 

If You will type in Your browser : http://{{project-name}}/admin/login it will throw an error of missing template. How to solve this problem?

You need to create under src/Template/Admin/ login.ctp file.

Note : *.ctp wildcard - is Cake Template file, that is using to pass/render data You setting through controller.

In that file just type 'Hello World!' where You want, refresh page with template error and You will get Your World , that greets You!

Note : By default, src/Template/Layout/default.ctp is rendering as layout, if You didn't defines one

Build up first 'Hello World!' application with CakePHP 3.x (Database tables migrations. Part 2)

You can easily create tables for Your database or drop them if You want. If You wish to do that, You should learn how to write Migrations for desired database.

Migrations files must be located in config/Migrations folder. File names can be in next formats:

• YYYYMMDDHHIISS_(Create|Alter|Delete)AdministratorsTable.php
• (1-9){1,}_(Create|Alter|Delete)AdministratorsTable.php

<?php
use Migrations\AbstractMigration;
use Cake\Log\Log;

/**
 * Class AdministratorsTableMigration
 */
class AdministratorsTableMigration extends AbstractMigration
{

    /**
     * @var string
     */
    private $_tableName;

    /**
     * @var string
     */
    private $_tablePrefix;

    public function init()
    {
        $this->_tableName = '"Administrators"';
        $this->_tablePrefix = 'administrators';
    }

    public function up()
    {
        Log::info("Trying to create {$this->_tableName} table");

        $administratorsTable = $this->table($this->_tablePrefix);

        if ($administratorsTable->exists()) {
            return Log::warning("Table {$this->_tableName} already exists");
        }

        $administratorsTable
            ->addPrimaryKey('id')
            ->addColumn('username', 'char', [
                'length' => 25,
                'null' => false
            ])
            ->addColumn('password', 'char', [
                'length' => 255,
                'null' => false
            ])
            ->addColumn('email', 'char', [
                'length' => 50,
                'null' => false
            ])
            ->addColumn('first_name', 'char', [
                'length' => 50,
                'null' => false
            ])
            ->addColumn('last_name', 'char', [
                'length' => 50,
                'null' => false
            ])
            ->addColumn('avatar', 'char', [
                'length' => 255,
                'default' => '/img/no-avatar.png'
            ])
            ->addColumn('active', 'boolean', [
                'default' => 0
            ])
            ->addTimestamps()
            ->create();

        return Log::notice("Table {$this->_tableName} has been created");
    }

    public function down()
    {
        if ($this->table($this->_tablePrefix)->exists()) {
            $this->table($this->_tablePrefix)->drop();
            return Log::info("Table {$this->_tableName} has been dropped");
        }

        return Log::warning("Table {$this->_tableName} does not exists");
    }

}
 

If You want to run migration, You need to run next command:

bin/cake migrations migrate to create table(-s).

If You want to rollback:

bin/cake migrations rollback - will revert last migration, where drop() function exists

bin/cake migrations (-t|--target) all - will revert all migrations, where drop() function exists

Build up first 'Hello World!' application with CakePHP 3.x (Introduction. Part 1)

CakePHP 3.x has the ability to bake controllers , models , views and other framework defined objects.

Note : If you have had some experience with the Laravel framework, the artisan component is similar to bake .

The bake application is located in bin folder; the following are some of the available commands:

• bin/cake bake shell %shellName% - to bake ShellClass
• bin/cake bake controller %controllerName% - to bake Controller Class
• bin/cake bake model %modelName% - to bake Model + Entity Class
• bin/cake bake view %viewName% - to bake View template
• bin/cake bake all %className% - to bake Controller, Model + Entity, View for developer.

Note : You will not be able to bake model if you have no tables in your database

Note : If you bake all components, you will get Controllers with pre-defined CRUD actions.

Installation Cakephp 3.X

Requirements:

• PHP 5.6.0 or greater mbstring PHP extension (default works in WAMP/XAMPP, if not then enable it)
• intl PHP extension (Available in WAMP/XAMPP, you have to enable it
  from php.ini)
• CakePHP will run on a variety of web servers such as nginx,
• LightHTTPD, or Microsoft IIS.

Before starting you should make sure that your PHP version is up to date:

php -v
 

Use Composer to install Cakephp 3 Framework,

Composer is officially supported method for Installation, so download composer at, Composer (Windows/Linux/Mac)

Run this to Install cakephp,

php composer.phar create-project --prefer-dist cakephp/app my_app_name
 

Once Composer finishes downloading the application skeleton and the core CakePHP library, you should have a functioning CakePHP application installed via Composer. Be sure to keep the composer.json and composer.lock files with the rest of your source code.

Or follow this easyest way to install cakephp

Follow the bellow steps,

1. go to this Git Repository
2. Download the cakeDC/oven for easy installation
3. Extract the zip file inside the LOCALHOST
4. Give 777 permission to that folder
5. Run file oven.php (available inside the folder)
6. A page will open with lot of option, choose option as per your preference
7. Click on the image and sit back. Your project will be installed in couple of minutes

execute:

bin/cake server
 

By default, without any arguments provided, this will serve your application at http://localhost:8765/.

fire this at your browser, http://example.com/ or http://localhost:8765/. At this point, you’ll be presented with CakePHP’s default home, and a message that tells you the status of your current database connection and you are ready for your first application.

For more details on Installation and Setup follow, Cakephp 3.X Installation

Installing CakePHP 3.4 on CentOS 7 with PHP 7 and SELinux enabled

This is what I did to install CakePHP on a fresh installed minimal CentOS 7

• Installed a CentOS-7-x86_64-Minimal-1611.iso in VirtualBox, two network interfaces: first NAT, second Host-Only
• set ONBOOT=yes in /etc/sysconfig/network-scripts/ifcfg-enp0s3
• reboot
• yum update
• yum install net-tools (to get ifconfig and netstat)
• yum install wget
• yum install yum-utils
• wget -q http://rpms.remirepo.net/enterprise/remi-release-7.rpm
• wget -q https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
• rpm -Uvh remi-release-7.rpm epel-release-latest-7.noarch.rpm
• yum-config-manager --enable remi-php71
• yum install php
• systemctl enable httpd
• systemctl start httpd
• firewall-cmd --permanent --zone=public --add-service=http
• firewall-cmd --permanent --zone=public --add-service=https
• firewall-cmd --reload
• yum install httpd mariadb-server mariadb php phpmyadmin
• systemctl start mariadb
• systemctl enable mariadb
• systemctl restart httpd
• yum install php-mbstring php-intl
• mysql_secure_installation
• curl -s https://getcomposer.org/installer | php
• cd /var/www/html/
• php composer.phar create-project --prefer-dist cakephp/app MyApp
• chown apache: -R MyApp/
• Create Database:

# mysql -u root -p
Enter password:

mysql> CREATE DATABASE mydb;
mysql> GRANT ALL ON mydb.* to 'myuser'@'localhost' IDENTIFIED BY '_password_';
mysql> FLUSH PRIVILEGES;
mysql> quit
 

• Create file /etc/httpd/conf.d/my_app.conf with content:

<VirtualHost *:80>
    ServerAdmin root@localhost
    ServerName cakephp.myapp.net
    DocumentRoot /var/www/html/MyApp
    <Directory /var/www/html/MyApp>
      Allowoverride All
    </Directory>
</VirtualHost>
 

• cd /var/www/html/secure_logging; chcon -Rv --type=httpd_user_content_rw_t tmp

• touch /.autorelabel; reboot

• On my host I edit /etc/hosts and enter the line (192.168.56.101 is the host-only-ip-address of my VM) 192.168.56.101 cakephp.myapp.net

• Surf to http://cakephp.myapp.net/

• ToDo: Edit database-connection file.

Setting up Project

At first, You should create database with mysql , phpMyAdmin , HeidiSQL or another instruments to work with Database and let user create new one.

After that procedure, You should provide access to database for project.

You need to go into file /path/to/your/project/config/app.php ,then look up for Datasources default . In that array, You need to change localhost (on demand), user , password and database .

o to Your browser and refresh page. DB issue should gone and show Green Tick at left side.

Done! Your first project has been set up!