CRUDController - Code Metrics - Inspection of "Add Seasons page with leaderboard and other stuff" - allejo/bzion - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#160)

by Vladimir

created 2017-11-07 07:05 UTC

CRUDController B

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	384
Duplicated Lines	7.29 %

Coupling/Cohesion

Components	1
Dependencies	12

Test Coverage

Coverage

74.13%

Importance

Changes

Metric	Value
wmc	37
lcom	1
cbo	12
dl	28
loc	384
ccs	86
cts	116
cp	0.7413
rs	8.6
c	0
b	0
f	0

15 Methods

Rating	Name	Duplication	Size	Complexity
A	validateNew()	0	3	1
A	validate()	0	3	1
A	validateEdit()	0	3	1
B	delete()	16	37	6
B	restore()	12	25	5
B	create()	0	30	6
B	edit()	0	23	4
A	canDelete()	0	4	1
A	canCreate()	0	6	1
A	canEdit()	0	4	1
A	redirectTo()	0	8	2
A	redirectToList()	0	7	1
A	getFormCreator()	0	10	2
B	getMessage()	0	26	4
A	getMessages()	0	73	1

How to fix Duplicated Code

<?php

use BZIon\Form\Creator\ModelFormCreator;
use Symfony\Component\Form\Form;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Response;

/**
 * A controller with actions for creating, reading, updating and deleting models
 * @package BZiON\Controllers
 */
abstract class CRUDController extends JSONController
{
    /**
     * Make sure that the data of a form is valid, only called when creating a
     * new object
     * @param  Form $form The submitted form
     * @return void
     */
    protected function validateNew($form)
    {
    }

    /**
     * Make sure that the data of a form is valid, only called when editing an
     * existing object
     * @param  Form $form The submitted form
     * @param  PermissionModel $model The model being edited
     * @return void
     */
    protected function validateEdit($form, $model)
    {
    }

    /**
     * Make sure that the data of a form is valid
     * @param  Form $form The submitted form
     * @return void
     */
    protected function validate($form)
    {
    }

    /**
     * Delete a model
     * @param  PermissionModel    $model     The model we want to delete
     * @param  Player             $me        The user who wants to delete the model
     * @param  Closure|null       $onSuccess Something to do when the model is deleted
     * @throws ForbiddenException
     * @return mixed              The response to show to the user
     */
    protected function delete(PermissionModel $model, Player $me, $onSuccess = null)
    {
        if ($model->isDeleted()) {
            // We will have to hard delete the model
            $hard = true;
            $message = 'hardDelete';
            $action = 'Erase forever';
        } else {
            $hard = false;
            $message = 'softDelete';
            $action = 'Delete';
        }

        if (!$this->canDelete($me, $model, $hard)) {
            throw new ForbiddenException($this->getMessage($model, $message, 'forbidden'));
        }

        $successMessage = $this->getMessage($model, $message, 'success');
        $redirection    = $this->redirectToList($model);

        return $this->showConfirmationForm(function () use ($model, $hard, $redirection, $onSuccess) {

            if ($hard) {
                $model->wipe();
            } else {
                $model->delete();
            }

            if ($onSuccess) {
                $response = $onSuccess();
                if ($response instanceof Response) {
                    return $response;
                }
            }

            return $redirection;
        }, $this->getMessage($model, $message, 'confirm'), $successMessage, $action);
    }

    protected function restore(PermissionModel $model, Player $me, $onSuccess)
    {
        if (!$this->canDelete($me, $model)) {
            throw new ForbiddenException($this->getMessage($model, 'restore', 'forbidden'));
        }

        if (!$model->isDeleted()) {
            throw new LogicException('You cannot restore an object that is not marked as deleted.');
        }

        $successMessage = $this->getMessage($model, 'restore', 'success');

        return $this->showConfirmationForm(function () use ($model, $successMessage, $onSuccess) {

            $model->restore();

            if ($onSuccess) {
                $response = $onSuccess();
                if ($response instanceof Response) {
                    return $response;
                }
            }

            return $this->redirectTo($model);
        }, $this->getMessage($model, 'restore', 'confirm'), $successMessage, 'Restore');
    }

    /**
     * Create a model
     *
     * This method requires that you have implemented enter() and a form creator
     * for the model
     *
     * @param  Player             $me The user who wants to create the model
     * @param  Closure|null       $onSuccess The function to call on success
     * @throws ForbiddenException
     * @return mixed              The response to show to the user
     */
    protected function create(Player $me, $onSuccess = null)
    {
        if (!$this->canCreate($me)) {
            throw new ForbiddenException($this->getMessage($this->getName(), 'create', 'forbidden'));
        }

        $creator = $this->getFormCreator();
        $form = $creator->create()->handleRequest($this->getRequest());

        if ($form->isSubmitted()) {
            $this->validate($form);
            $this->validateNew($form);
            if ($form->isValid()) {
                $model = $creator->enter($form);
                $this->getFlashBag()->add("success",
                     $this->getMessage($model, 'create', 'success'));

                if ($onSuccess) {
                    $response = $onSuccess($model);
                    if ($response instanceof Response) {
                        return $response;
                    }
                }

                return $this->redirectTo($model);
            }
        }

        return array("form" => $form->createView());
    }

    /**
     * Edit a model
     *
     * This method requires that you have implemented update() and a form creator
     * for the model
     *
     * @param  PermissionModel    $model The model we want to edit
     * @param  Player             $me    The user who wants to edit the model
     * @param  string             $type  The name of the variable to pass to the view
     * @throws ForbiddenException
     * @return mixed              The response to show to the user
     */
    protected function edit(PermissionModel $model, Player $me, $type)
    {
        if (!$this->canEdit($me, $model)) {
            throw new ForbiddenException($this->getMessage($model, 'edit', 'forbidden'));
        }

        $creator = $this->getFormCreator($model);
        $form = $creator->create()->handleRequest($this->getRequest());

        if ($form->isSubmitted()) {
            $this->validate($form);
            $this->validateEdit($form, $model);
            if ($form->isValid()) {
                $creator->update($form, $model);
                $this->getFlashBag()->add("success",
                    $this->getMessage($model, 'edit', 'success'));

                return $this->redirectTo($model);
            }
        }

        return array("form" => $form->createView(), $type => $model);
    }

    /**
     * Find whether a player can delete a model
     *
     * @param  Player          $player The player who wants to delete the model
     * @param  PermissionModel $model  The model that will be deleted
     * @param  bool         $hard   Whether to hard-delete the model instead of soft-deleting it
     * @return bool
     */
    protected function canDelete($player, $model, $hard = false)
    {
        return $player->canDelete($model, $hard);
    }

    /**
     * Find whether a player can create a model
     *
     * @param  Player  $player The player who wants to create a model
     * @return bool
     */
    protected function canCreate($player)
    {
        $modelName = $this->getName();

        return $player->canCreate($modelName);
    }

    /**
     * Find whether a player can edit a model
     *
     * @param  Player          $player The player who wants to delete the model
     * @param  PermissionModel $model  The model which will be edited
     * @return bool
     */
    protected function canEdit($player, $model)
    {
        return $player->canEdit($model);
    }

    /**
     * Get a redirection response to a model
     *
     * Goes to a list of models of the same type if the provided model does not
     * have a URL
     *
     * @param  ModelInterface $model The model to redirect to
     * @return Response
     */
    protected function redirectTo($model)
    {
        if ($model instanceof UrlModel) {
            return new RedirectResponse($model->getUrl());
        } else {
            return $this->redirectToList($model);
        }
    }

    /**
     * Get a redirection response to a list of models
     *
     * @param  ModelInterface $model The model to whose list we should redirect
     * @return Response
     */
    protected function redirectToList($model)
    {
        $route = $model->getRouteName('list');
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        $url = Service::getGenerator()->generate($route);

        return new RedirectResponse($url);
    }

    /**
     * Dynamically get the form to show to the user
     *
     * @param  \Model|null      $model The model being edited, `null` if we're creating one
     * @return ModelFormCreator
     */
    private function getFormCreator($model = null)
    {
        $type = ($model instanceof Model) ? $model->getType() : $this->getName();
        $type = ucfirst($type);

        $creatorClass = "\\BZIon\\Form\\Creator\\{$type}FormCreator";
        $creator = new $creatorClass($model, $this->getMe(), $this);

        return $creator;
    }

    /**
     * Get a message to show to the user
     * @todo   Use the $escape parameter
     * @param  \ModelInterface|string $model  The model (or type) to show a message for
     * @param  string                 $action The action that will be performed (softDelete, hardDelete, create or edit)
     * @param  string                 $status The message's status (confirm, error or success)
     * @return string
     */
    private function getMessage($model, $action, $status, $escape = true)

    {
        if ($model instanceof Model) {
            $type = strtolower($model->getTypeForHumans());

            if ($model instanceof NamedModel) {
                // Twig will not escape the message on confirmation forms
                $name = $model->getName();
                if ($status == 'confirm') {
                    $name = Model::escape($name);
                }

                $messages = $this->getMessages($type, $name);

                return $messages[$action][$status]['named'];
            } else {
                $messages = $this->getMessages($type);

                return $messages[$action][$status]['unnamed'];
            }
        } else {
            $messages = $this->getMessages(strtolower($model));

            return $messages[$action][$status];
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
        }
    }

    /**
     * Get a list of messages to show to the user
     * @param  string $type The type of the model that the message refers to
     * @param  string $name The name of the model
     * @return array
     */
    protected function getMessages($type, $name = '')
    {
        return array(
            'hardDelete' => array(
                'confirm' => array(
                    'named' => <<<"WARNING"
Are you sure you want to wipe <strong>$name</strong>?<br />
<strong><em>DANGER</em></strong>: This action will <strong>permanently</strong>
erase the $type from the database, including any objects directly related to it!
WARNING
                ,
                    'unnamed' => <<<"WARNING"
Are you sure you want to wipe this $type?<br />
<strong><em>DANGER</em></strong>: This action will <strong>permanently</strong>
erase the $type from the database, including any objects directly related to it!
WARNING
                ),
                'forbidden' => array(
                    'named'   => "You are not allowed to delete the $type $name",
                    'unnamed' => "You are not allowed to delete this $type",
                ),
                'success' => array(
                    'named'   => "The $type $name was permanently erased from the database",
                    'unnamed' => "The $type has been permanently erased from the database",
                ),
            ),
            'softDelete' => array(
                'confirm' => array(
                    'named'   => "Are you sure you want to delete <strong>$name</strong>?",
                    'unnamed' => "Are you sure you want to delete this $type?",
                ),
                'forbidden' => array(
                    'named'   => "You are not allowed to delete the $type $name",
                    'unnamed' => "You are not allowed to delete this $type",
                ),
                'success' => array(
                    'named'   => "The $type $name was deleted successfully",
                    'unnamed' => "The $type was deleted successfully",
                ),
            ),
            'restore' => array(
                'confirm' => array(
                    'named'   => "Are you sure you want to restore <strong>$name</strong>?",
                    'unnamed' => "Are you sure you want to restore this $type?",
                ),
                'forbidden' => array(
                    'named'   => "You are not allowed to restore the $type $name",
                    'unnamed' => "You are not allowed to restore this $type",
                ),
                'success' => array(
                    'named'   => "The $type $name has been restored successfully",
                    'unnamed' => "The $type has been restored successfully",
                ),
            ),
            'edit' => array(
                'forbidden' => array(
                    'named'   => "You are not allowed to edit the $type $name",
                    'unnamed' => "You are not allowed to edit this $type",
                ),
                'success' => array(
                    'named'   => "The $type $name has been successfully updated",
                    'unnamed' => "The $type was updated successfully",
                ),
            ),
            'create' => array(
                'forbidden' => "You are not allowed to create a new $type",
                'success'   => array(
                    'named'   => "The $type $name was created successfully",
                    'unnamed' => "The $type was created successfully",
                ),
            ),
        );
    }
}


1			<?php
2
3			use BZIon\Form\Creator\ModelFormCreator;
4			use Symfony\Component\Form\Form;
5			use Symfony\Component\HttpFoundation\RedirectResponse;
6			use Symfony\Component\HttpFoundation\Response;
7
8			/**
9			* A controller with actions for creating, reading, updating and deleting models
10			* @package BZiON\Controllers
11			*/
12			abstract class CRUDController extends JSONController
13			{
14			/**
15			* Make sure that the data of a form is valid, only called when creating a
16			* new object
17			* @param Form $form The submitted form
18			* @return void
19			*/
20	1		protected function validateNew($form)
21			{
22	1		}
23
24			/**
25			* Make sure that the data of a form is valid, only called when editing an
26			* existing object
27			* @param Form $form The submitted form
28			* @param PermissionModel $model The model being edited
29			* @return void
30			*/
31			protected function validateEdit($form, $model)
32			{
33			}
34
35			/**
36			* Make sure that the data of a form is valid
37			* @param Form $form The submitted form
38			* @return void
39			*/
40			protected function validate($form)
41			{
42			}
43
44			/**
45			* Delete a model
46			* @param PermissionModel $model The model we want to delete
47			* @param Player $me The user who wants to delete the model
48			* @param Closure\|null $onSuccess Something to do when the model is deleted
49			* @throws ForbiddenException
50			* @return mixed The response to show to the user
51			*/
52	1		protected function delete(PermissionModel $model, Player $me, $onSuccess = null)
53			{
54	1		if ($model->isDeleted()) {
55			// We will have to hard delete the model
56			$hard = true;
57			$message = 'hardDelete';
58			$action = 'Erase forever';
59			} else {
60	1		$hard = false;
61	1		$message = 'softDelete';
62	1		$action = 'Delete';
63			}
64
65	1		if (!$this->canDelete($me, $model, $hard)) {
66			throw new ForbiddenException($this->getMessage($model, $message, 'forbidden'));
67			}
68
69	1		$successMessage = $this->getMessage($model, $message, 'success');
70	1		$redirection = $this->redirectToList($model);
71
72	1	View Code Duplication	return $this->showConfirmationForm(function () use ($model, $hard, $redirection, $onSuccess) {
			0 ignored issues – show Duplication introduced 2017-11-04 08:07 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
73	1		if ($hard) {
74			$model->wipe();
75			} else {
76	1		$model->delete();
77			}
78
79	1		if ($onSuccess) {
80	1		$response = $onSuccess();
81	1		if ($response instanceof Response) {
82			return $response;
83			}
84			}
85
86	1		return $redirection;
87	1		}, $this->getMessage($model, $message, 'confirm'), $successMessage, $action);
88			}
89
90			protected function restore(PermissionModel $model, Player $me, $onSuccess)
91			{
92			if (!$this->canDelete($me, $model)) {
93			throw new ForbiddenException($this->getMessage($model, 'restore', 'forbidden'));
94			}
95
96			if (!$model->isDeleted()) {
97			throw new LogicException('You cannot restore an object that is not marked as deleted.');
98			}
99
100			$successMessage = $this->getMessage($model, 'restore', 'success');
101	1
102		View Code Duplication	return $this->showConfirmationForm(function () use ($model, $successMessage, $onSuccess) {
			0 ignored issues – show Duplication introduced 2017-11-04 08:07 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
103	1		$model->restore();
104	1
105			if ($onSuccess) {
106			$response = $onSuccess();
107	1		if ($response instanceof Response) {
108	1		return $response;
109			}
110	1		}
111	1
112	1		return $this->redirectTo($model);
113	1		}, $this->getMessage($model, 'restore', 'confirm'), $successMessage, 'Restore');
114	1		}
115	1
116	1		/**
117			* Create a model
118	1		*
119	1		* This method requires that you have implemented enter() and a form creator
120	1		* for the model
121			*
122			* @param Player $me The user who wants to create the model
123			* @param Closure\|null $onSuccess The function to call on success
124			* @throws ForbiddenException
125	1		* @return mixed The response to show to the user
126			*/
127			protected function create(Player $me, $onSuccess = null)
128			{
129	1		if (!$this->canCreate($me)) {
130			throw new ForbiddenException($this->getMessage($this->getName(), 'create', 'forbidden'));
131			}
132
133			$creator = $this->getFormCreator();
134			$form = $creator->create()->handleRequest($this->getRequest());
135
136			if ($form->isSubmitted()) {
137			$this->validate($form);
138			$this->validateNew($form);
139			if ($form->isValid()) {
140			$model = $creator->enter($form);
141			$this->getFlashBag()->add("success",
142			$this->getMessage($model, 'create', 'success'));
143
144			if ($onSuccess) {
145			$response = $onSuccess($model);
146			if ($response instanceof Response) {
147			return $response;
148			}
149			}
150
151			return $this->redirectTo($model);
152			}
153			}
154
155			return array("form" => $form->createView());
156			}
157
158			/**
159			* Edit a model
160			*
161			* This method requires that you have implemented update() and a form creator
162			* for the model
163			*
164			* @param PermissionModel $model The model we want to edit
165			* @param Player $me The user who wants to edit the model
166			* @param string $type The name of the variable to pass to the view
167			* @throws ForbiddenException
168			* @return mixed The response to show to the user
169			*/
170			protected function edit(PermissionModel $model, Player $me, $type)
171			{
172			if (!$this->canEdit($me, $model)) {
173			throw new ForbiddenException($this->getMessage($model, 'edit', 'forbidden'));
174			}
175
176	1		$creator = $this->getFormCreator($model);
177			$form = $creator->create()->handleRequest($this->getRequest());
178	1
179			if ($form->isSubmitted()) {
180			$this->validate($form);
181			$this->validateEdit($form, $model);
182			if ($form->isValid()) {
183			$creator->update($form, $model);
184			$this->getFlashBag()->add("success",
185			$this->getMessage($model, 'edit', 'success'));
186
187	1		return $this->redirectTo($model);
188			}
189	1		}
190
191	1		return array("form" => $form->createView(), $type => $model);
192			}
193
194			/**
195			* Find whether a player can delete a model
196			*
197			* @param Player $player The player who wants to delete the model
198			* @param PermissionModel $model The model that will be deleted
199			* @param bool $hard Whether to hard-delete the model instead of soft-deleting it
200			* @return bool
201			*/
202			protected function canDelete($player, $model, $hard = false)
203			{
204			return $player->canDelete($model, $hard);
205			}
206
207			/**
208			* Find whether a player can create a model
209			*
210			* @param Player $player The player who wants to create a model
211			* @return bool
212			*/
213			protected function canCreate($player)
214			{
215	1		$modelName = $this->getName();
216
217	1		return $player->canCreate($modelName);
218	1		}
219
220			/**
221			* Find whether a player can edit a model
222			*
223			* @param Player $player The player who wants to delete the model
224			* @param PermissionModel $model The model which will be edited
225			* @return bool
226			*/
227			protected function canEdit($player, $model)
228			{
229			return $player->canEdit($model);
230	1		}
231
232	1		/**
233	1		* Get a redirection response to a model
234			*
235	1		* Goes to a list of models of the same type if the provided model does not
236			* have a URL
237			*
238			* @param ModelInterface $model The model to redirect to
239			* @return Response
240			*/
241			protected function redirectTo($model)
242			{
243			if ($model instanceof UrlModel) {
244	1		return new RedirectResponse($model->getUrl());
245			} else {
246	1		return $this->redirectToList($model);
247	1		}
248			}
249	1
250	1		/**
251			* Get a redirection response to a list of models
252	1		*
253			* @param ModelInterface $model The model to whose list we should redirect
254			* @return Response
255			*/
256			protected function redirectToList($model)
257			{
258			$route = $model->getRouteName('list');
			0 ignored issues – show Bug introduced 2016-03-14 01:13 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `ModelInterface` as the method `getRouteName()` does only exist in the following implementations of said interface: `AliasModel`, `AvatarModel`, `Ban`, `Conversation`, `Invitation`, `Map`, `Match`, `News`, `NewsCategory`, `Page`, `Player`, `Role`, `Server`, `Team`, `UrlModel`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
259			$url = Service::getGenerator()->generate($route);
260
261			return new RedirectResponse($url);
262			}
263	1
264			/**
265	1		* Dynamically get the form to show to the user
266	1		*
267			* @param \Model\|null $model The model being edited, `null` if we're creating one
268	1		* @return ModelFormCreator
269			*/
270	1		private function getFormCreator($model = null)
271	1		{
272	1		$type = ($model instanceof Model) ? $model->getType() : $this->getName();
273			$type = ucfirst($type);
274
275	1		$creatorClass = "\\BZIon\\Form\\Creator\\{$type}FormCreator";
276			$creator = new $creatorClass($model, $this->getMe(), $this);
277	1
278			return $creator;
279			}
280
281			/**
282			* Get a message to show to the user
283			* @todo Use the $escape parameter
284	1		* @param \ModelInterface\|string $model The model (or type) to show a message for
285			* @param string $action The action that will be performed (softDelete, hardDelete, create or edit)
286	1		* @param string $status The message's status (confirm, error or success)
287			* @return string
288			*/
289			private function getMessage($model, $action, $status, $escape = true)
			0 ignored issues – show Unused Code introduced 2017-08-01 20:41 UTC by Report Bug Copy Issue Report The parameter `$escape` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
290			{
291			if ($model instanceof Model) {
292			$type = strtolower($model->getTypeForHumans());
293
294			if ($model instanceof NamedModel) {
295			// Twig will not escape the message on confirmation forms
296	1		$name = $model->getName();
297			if ($status == 'confirm') {
298			$name = Model::escape($name);
299			}
300
301			$messages = $this->getMessages($type, $name);
302	1
303			return $messages[$action][$status]['named'];
304	1		} else {
305			$messages = $this->getMessages($type);
306
307			return $messages[$action][$status]['unnamed'];
308	1		}
309			} else {
310	1		$messages = $this->getMessages(strtolower($model));
311
312			return $messages[$action][$status];
			0 ignored issues – show Bug Best Practice introduced 2015-12-02 06:58 UTC by Report Bug Copy Issue Report The return type of `return $messages[$action][$status];` (`array`) is incompatible with the return type documented by `CRUDController::getMessage` of type `string`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
313			}
314	1		}
315	1
316			/**
317			* Get a list of messages to show to the user
318	1		* @param string $type The type of the model that the message refers to
319	1		* @param string $name The name of the model
320			* @return array
321			*/
322			protected function getMessages($type, $name = '')
323			{
324	1		return array(
325	1		'hardDelete' => array(
326			'confirm' => array(
327			'named' => <<<"WARNING"
328	1		Are you sure you want to wipe <strong>$name</strong>?<br />
329	1		<strong><em>DANGER</em></strong>: This action will <strong>permanently</strong>
330			erase the $type from the database, including any objects directly related to it!
331			WARNING
332	1		,
333	1		'unnamed' => <<<"WARNING"
334			Are you sure you want to wipe this $type?<br />
335			<strong><em>DANGER</em></strong>: This action will <strong>permanently</strong>
336			erase the $type from the database, including any objects directly related to it!
337			WARNING
338	1		),
339	1		'forbidden' => array(
340			'named' => "You are not allowed to delete the $type $name",
341			'unnamed' => "You are not allowed to delete this $type",
342	1		),
343	1		'success' => array(
344			'named' => "The $type $name was permanently erased from the database",
345			'unnamed' => "The $type has been permanently erased from the database",
346			),
347	1		),
348			'softDelete' => array(
349	1		'confirm' => array(
350	1		'named' => "Are you sure you want to delete <strong>$name</strong>?",
351			'unnamed' => "Are you sure you want to delete this $type?",
352			),
353			'forbidden' => array(
354			'named' => "You are not allowed to delete the $type $name",
355			'unnamed' => "You are not allowed to delete this $type",
356			),
357			'success' => array(
358			'named' => "The $type $name was deleted successfully",
359			'unnamed' => "The $type was deleted successfully",
360			),
361			),
362			'restore' => array(
363			'confirm' => array(
364			'named' => "Are you sure you want to restore <strong>$name</strong>?",
365			'unnamed' => "Are you sure you want to restore this $type?",
366			),
367			'forbidden' => array(
368			'named' => "You are not allowed to restore the $type $name",
369			'unnamed' => "You are not allowed to restore this $type",
370			),
371			'success' => array(
372			'named' => "The $type $name has been restored successfully",
373			'unnamed' => "The $type has been restored successfully",
374			),
375			),
376			'edit' => array(
377			'forbidden' => array(
378			'named' => "You are not allowed to edit the $type $name",
379			'unnamed' => "You are not allowed to edit this $type",
380			),
381			'success' => array(
382			'named' => "The $type $name has been successfully updated",
383			'unnamed' => "The $type was updated successfully",
384			),
385			),
386			'create' => array(
387			'forbidden' => "You are not allowed to create a new $type",
388			'success' => array(
389			'named' => "The $type $name was created successfully",
390			'unnamed' => "The $type was created successfully",
391			),
392			),
393			);
394			}
395			}
396

allejo / bzion

Pull Request — master (#160)

CRUDController B

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