Web Technology Experts Notes

Sunday, 21 April 2013

Cakephp Interview Questions and Answers

Question: What is cakephp?.

Answer:

CakePHP is a free, open-source, rapid development framework for PHP. It's a foundational structure for programmers to create web applications. There is number of in built component like Ajax, RequestHandler, Session etc

Question: When CakePHP was developed?
April 2005

Question: What is current Stable version of cakePHP?
3.1.5 / 30 November 2015

Question: For cakPHP 3.1.5 installtion, what is minimum PHP Version required?
PHP 5.4

Question: What are are drawbacks of cakephp.

Answer : The learning curve, and it loads full application before it starts your task. Its not recommended for small projects because of its resource heavy structure.

Question : What is MVC (model, view, and controller) in cakephp?

Answer : Model–view–controller (MVC) is an architectural pattern used in software engineering.

Model: Databases function exist in the model

View: Design parts written here

Controller: Business Login

Question : What is the name of Cakephp database configuration file name and its location?

Answer: Default file name is database.php.default.

Its located in "/app/config/database.php.defaut"

Question : What are component, helper and why are they used?

Answer: A component is an independent piece of code written for specific task that can be used(Eg Email, Ajax, RequestHandler and Session).

A helper is used for helping cakephp in rendering the data to be shown to user with views(Eg Form, HTML etc).

Question : What are commonly used components of cakephp?

Answer: Following are some components which is used in cakephp.

Security

Sessions

ACL(Access control lists)

Auth(Authentication)

Emails

RequestHandling

MVC architecture

Built-in validations

Caching

scaffolding

Question: What is HABTM.

Answer: Full form of Has And Belongs To Many.

It is a kind of associations that can be defined in models for retrieving associated data across different entities.

For Example

A product have one or more tags, and a tag may belongs to one or more product.

/**
 * Post Model
 *
 * @property Tag $Tag
 */
class Post extends AppModel {

/**
 * Display field
 *
 * @var string
 */
 public $displayField = 'name';

/**
 * Validation rules
 *
 * @var array
 */
 public $validate = array( );

/**
 * hasAndBelongsToMany associations
 *
 * @var array
 */
 public $hasAndBelongsToMany = array(
  'Tag' => array(
   'className' => 'Tag',
   'joinTable' => 'posts_tags',
   'foreignKey' => 'post_id',
   'associationForeignKey' => 'tag_id',
   'unique' => 'keepExisting',
  )
 );

 
}

Question : What is default function and default controller of cakephp which is called automatically?

Answer: Default controller is indexController.php and Default function is index.

Question : How cakephp URL looks in address bar
Answer: http://example.com/controller/action/param1/param2/param3

Question : Why cakephp have two vendor folder?

Answer: There is two vendor folder, one folder in root and another is in "app" folder

Question : List some database related functions in cakephp.

Answer: find, findAll , findAllBy , findBy , findNeighbours and query.

Question : List some of the features in Cakephp

Answer: Following are some feature of Cakephp.

Full support of (MVC)Model, View, Controller Architecture.
Scaffolding.
Very nice Code generation via Bake.
Helpers for HTML, Forms, Pagination, AJAX, Javascript, XML, RSS and more.
Access Control Lists and Authentication (ACL & Auth).
Router for mapping urls and handling extensions.
Security, Session, and RequestHandler Components.
Utility classes for working with Files, Folders, Arrays and more.
can manage multiple site(apps) developement.
Internationalization and Localization with static translations in gettext style or dynamic translations of model data.
Full Console environment with support for multiple tasks. Included shells: bake, schema, acl, i18 extractor, api.
CSRF protection via Security Component.
HTTP Authentication via Security Component.
Flexible Caching: use memcache, apc, xcache, the file system, or a model to speed up your application
Configure class to provide dynamic handling of configuration settings and App class to handle importing required classes.
Now Supports Unit Testing application.
Integration with Crusecontrol and Ant.