State::transitionableStates() - Code Metrics - Inspection of "Merge pull request #17 from bjrnblm/master" - spatie/laravel-model-states - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 1de2e3...928b36 )

by Brent

created 2019-10-28 10:47 UTC

State::transitionableStates() A

↳ Parent: State

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	4
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	1

<?php

namespace Spatie\ModelStates;

use ReflectionClass;
use JsonSerializable;
use Illuminate\Support\Collection;
use Illuminate\Database\Eloquent\Model;
use Spatie\ModelStates\Events\StateChanged;
use Spatie\ModelStates\Exceptions\InvalidConfig;
use Spatie\ModelStates\Exceptions\CouldNotPerformTransition;

abstract class State implements JsonSerializable
{
    /**
     * Static cache for generated state maps.
     *
     * @var array
     *
     * @see State::resolveStateMapping
     */
    protected static $generatedMapping = [];

    /** @var \Illuminate\Database\Eloquent\Model */
    protected $model;

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

    /**
     * Create a state object based on a value (classname or name),
     * and optionally provide its constructor arguments.
     *
     * @param string $name
     * @param mixed ...$args
     *
     * @return \Spatie\ModelStates\State
     */
    public static function make(string $name, Model $model): State
    {
        $stateClass = static::resolveStateClass($name);

        if (! is_subclass_of($stateClass, static::class)) {
            throw InvalidConfig::doesNotExtendBaseClass($name, static::class);
        }

        return new $stateClass($model);
    }

    /**
     * Create a state object based on a value (classname or name),
     * and optionally provide its constructor arguments.
     *
     * @param string $name
     * @param mixed ...$args
     *
     * @return \Spatie\ModelStates\State
     */
    public static function find(string $name, Model $model): State
    {
        return static::make($name, $model);
    }

    /**
     * Get all registered state classes.
     *
     * @return \Illuminate\Support\Collection|string[]|static[] A list of class names.
     */
    public static function all(): Collection
    {
        return collect(self::resolveStateMapping());
    }

    /**
     * The value that will be saved in the database.
     *
     * @return string
     */
    public static function getMorphClass(): string
    {
        return static::resolveStateName(static::class);
    }

    /**
     * The value that will be saved in the database.
     *
     * @return string
     */
    public function getValue(): string
    {
        return static::getMorphClass();
    }

    /**
     * Resolve the state class based on a value, for example a stored value in the database.
     *
     * @param string|\Spatie\ModelStates\State $state
     *
     * @return string
     */
    public static function resolveStateClass($state): ?string
    {
        if ($state === null) {
            return null;
        }

        if ($state instanceof State) {
            return get_class($state);
        }

        foreach (static::resolveStateMapping() as $stateClass) {
class YourClass
{
    private static function getTemperature() {
        return "3422 °C";
}

public static function getSomeVariable()
{
    return static::getTemperature();
}
            if (! class_exists($stateClass)) {
                continue;
            }

            // Loose comparison is needed here in order to support non-string values,
            // Laravel casts their database value automatically to strings if we didn't specify the fields in `$casts`.
            if (($stateClass::$name ?? null) == $state) {
                return $stateClass;
            }
        }

        return $state;
    }

    /**
     * Resolve the name of the state, which is the value that will be saved in the database.
     *
     * Possible names are:
     *
     *    - The classname, is no explicit name is provided
     *    - A name provided in the state class as a public static property:
     *      `public static $name = 'dummy'`
     *
     * @param $state
     *
     * @return string|null
     */
    public static function resolveStateName($state): ?string
    {
        if ($state === null) {
            return null;
        }

        if ($state instanceof State) {
            $stateClass = get_class($state);
        } else {
            $stateClass = static::resolveStateClass($state);
        }

        if (class_exists($stateClass) && isset($stateClass::$name)) {
            return $stateClass::$name;
        }

        return $stateClass;
    }

    /**
     * Determine if the current state is one of an arbitrary number of other states.
     * This can be either a classname or a name.
     *
     * @param string|array ...$stateClasses
     *
     * @return bool
     */
    public function isOneOf(...$statesNames): bool
    {
        $statesNames = collect($statesNames)->flatten()->toArray();

        foreach ($statesNames as $statesName) {
            if ($this->equals($statesName)) {
                return true;
            }
        }

        return false;
    }

    /**
     * Determine if the current state equals another.
     * This can be either a classname or a name.
     *
     * @param string|\Spatie\ModelStates\State $state
     *
     * @return bool
     */
    public function equals($state): bool
    {
        return self::resolveStateClass($state)
            === self::resolveStateClass($this);
    }

    /**
     * Determine if the current state equals another.
     * This can be either a classname or a name.
     *
     * @param string|\Spatie\ModelStates\State $state
     *
     * @return bool
     */
    public function is($state): bool
    {
        return $this->equals($state);
    }

    public function __toString(): string
    {
        return static::getMorphClass();
    }

    /**
     * @param string|\Spatie\ModelStates\Transition $transitionClass
/**
 * @param array $germany
 * @param array $ireland
 */
function finale($germany, $island) {
    return "2:1";
}
     * @param mixed ...$args
     *
     * @return \Illuminate\Database\Eloquent\Model
     */
    public function transition($transition, ...$args): Model
    {
        if (is_string($transition)) {
            $transition = new $transition($this->model, ...$args);
        }

        if (method_exists($transition, 'canTransition')) {
            if (! $transition->canTransition()) {
                throw CouldNotPerformTransition::notAllowed($this->model, $transition);
            }
        }

        $mutatedModel = app()->call([$transition, 'handle']);

        event(new StateChanged($this, $mutatedModel->state, $transition, $this->model));

        return $mutatedModel;
    }

    /**
     * @param string|\Spatie\ModelStates\State $state
     * @param mixed ...$args
     *
     * @return \Illuminate\Database\Eloquent\Model
     */
    public function transitionTo($state, ...$args): Model
    {
        if (! method_exists($this->model, 'resolveTransitionClass')) {
            throw InvalidConfig::resolveTransitionNotFound($this->model);
        }

        $transition = $this->model->resolveTransitionClass(
            static::resolveStateClass($this),
            static::resolveStateClass($state)
        );

        return $this->transition($transition, ...$args);
    }

    /**
     * Get the transitionable states from this state.
     *
     * @return array
     */
    public function transitionableStates($field = null): array
    {
        return $this->model->transitionableStates(get_class($this), $field);
    }

    /**
     * This method is used to find all available implementations of a given abstract state class.
     * Finding all implementations can be done in two ways:.
     *
     *    - The developer can define his own mapping directly in abstract state classes
     *      via the `protected $states = []` property
     *    - If no specific mapping was provided, the same directory where the abstract state class lives
     *      is scanned, and all concrete state classes extending the abstract state class will be provided.
     *
     * @return array
     */
    private static function resolveStateMapping(): array
    {
        if (isset(static::$states)) {
            return static::$states;
        }

        if (isset(self::$generatedMapping[static::class])) {
            return self::$generatedMapping[static::class];
        }

        $reflection = new ReflectionClass(static::class);

        ['dirname' => $directory] = pathinfo($reflection->getFileName());


        $files = scandir($directory);

        unset($files[0], $files[1]);

        $namespace = $reflection->getNamespaceName();

        $resolvedStates = [];

        foreach ($files as $file) {
            ['filename' => $className] = pathinfo($file);


            $stateClass = $namespace.'\\'.$className;

            if (! is_subclass_of($stateClass, static::class)) {
                continue;
            }

            $resolvedStates[] = $stateClass;
        }

        self::$generatedMapping[static::class] = $resolvedStates;

        return self::$generatedMapping[static::class];
    }

    public function jsonSerialize()
    {
        return $this->getValue();
    }
}


1			<?php
2
3			namespace Spatie\ModelStates;
4
5			use ReflectionClass;
6			use JsonSerializable;
7			use Illuminate\Support\Collection;
8			use Illuminate\Database\Eloquent\Model;
9			use Spatie\ModelStates\Events\StateChanged;
10			use Spatie\ModelStates\Exceptions\InvalidConfig;
11			use Spatie\ModelStates\Exceptions\CouldNotPerformTransition;
12
13			abstract class State implements JsonSerializable
14			{
15			/**
16			* Static cache for generated state maps.
17			*
18			* @var array
19			*
20			* @see State::resolveStateMapping
21			*/
22			protected static $generatedMapping = [];
23
24			/** @var \Illuminate\Database\Eloquent\Model */
25			protected $model;
26
27			public function __construct(Model $model)
28			{
29			$this->model = $model;
30			}
31
32			/**
33			* Create a state object based on a value (classname or name),
34			* and optionally provide its constructor arguments.
35			*
36			* @param string $name
37			* @param mixed ...$args
38			*
39			* @return \Spatie\ModelStates\State
40			*/
41			public static function make(string $name, Model $model): State
42			{
43			$stateClass = static::resolveStateClass($name);
44
45			if (! is_subclass_of($stateClass, static::class)) {
46			throw InvalidConfig::doesNotExtendBaseClass($name, static::class);
47			}
48
49			return new $stateClass($model);
50			}
51
52			/**
53			* Create a state object based on a value (classname or name),
54			* and optionally provide its constructor arguments.
55			*
56			* @param string $name
57			* @param mixed ...$args
58			*
59			* @return \Spatie\ModelStates\State
60			*/
61			public static function find(string $name, Model $model): State
62			{
63			return static::make($name, $model);
64			}
65
66			/**
67			* Get all registered state classes.
68			*
69			* @return \Illuminate\Support\Collection\|string[]\|static[] A list of class names.
70			*/
71			public static function all(): Collection
72			{
73			return collect(self::resolveStateMapping());
74			}
75
76			/**
77			* The value that will be saved in the database.
78			*
79			* @return string
80			*/
81			public static function getMorphClass(): string
82			{
83			return static::resolveStateName(static::class);
84			}
85
86			/**
87			* The value that will be saved in the database.
88			*
89			* @return string
90			*/
91			public function getValue(): string
92			{
93			return static::getMorphClass();
94			}
95
96			/**
97			* Resolve the state class based on a value, for example a stored value in the database.
98			*
99			* @param string\|\Spatie\ModelStates\State $state
100			*
101			* @return string
102			*/
103			public static function resolveStateClass($state): ?string
104			{
105			if ($state === null) {
106			return null;
107			}
108
109			if ($state instanceof State) {
110			return get_class($state);
111			}
112
113			foreach (static::resolveStateMapping() as $stateClass) {
			0 ignored issues – show Bug introduced 2019-09-27 07:39 UTC by Report Bug Copy Issue Report Since `resolveStateMapping()` is declared private, calling it with `static` will lead to errors in possible sub-classes. You can either use `self`, or increase the visibility of `resolveStateMapping()` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return static::getTemperature(); } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { private static function getTemperature() { return "-182 °C"; } } print YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return self::getTemperature(); } } Loading history...
114			if (! class_exists($stateClass)) {
115			continue;
116			}
117
118			// Loose comparison is needed here in order to support non-string values,
119			// Laravel casts their database value automatically to strings if we didn't specify the fields in `$casts`.
120			if (($stateClass::$name ?? null) == $state) {
121			return $stateClass;
122			}
123			}
124
125			return $state;
126			}
127
128			/**
129			* Resolve the name of the state, which is the value that will be saved in the database.
130			*
131			* Possible names are:
132			*
133			* - The classname, is no explicit name is provided
134			* - A name provided in the state class as a public static property:
135			* `public static $name = 'dummy'`
136			*
137			* @param $state
138			*
139			* @return string\|null
140			*/
141			public static function resolveStateName($state): ?string
142			{
143			if ($state === null) {
144			return null;
145			}
146
147			if ($state instanceof State) {
148			$stateClass = get_class($state);
149			} else {
150			$stateClass = static::resolveStateClass($state);
151			}
152
153			if (class_exists($stateClass) && isset($stateClass::$name)) {
154			return $stateClass::$name;
155			}
156
157			return $stateClass;
158			}
159
160			/**
161			* Determine if the current state is one of an arbitrary number of other states.
162			* This can be either a classname or a name.
163			*
164			* @param string\|array ...$stateClasses
165			*
166			* @return bool
167			*/
168			public function isOneOf(...$statesNames): bool
169			{
170			$statesNames = collect($statesNames)->flatten()->toArray();
171
172			foreach ($statesNames as $statesName) {
173			if ($this->equals($statesName)) {
174			return true;
175			}
176			}
177
178			return false;
179			}
180
181			/**
182			* Determine if the current state equals another.
183			* This can be either a classname or a name.
184			*
185			* @param string\|\Spatie\ModelStates\State $state
186			*
187			* @return bool
188			*/
189			public function equals($state): bool
190			{
191			return self::resolveStateClass($state)
192			=== self::resolveStateClass($this);
193			}
194
195			/**
196			* Determine if the current state equals another.
197			* This can be either a classname or a name.
198			*
199			* @param string\|\Spatie\ModelStates\State $state
200			*
201			* @return bool
202			*/
203			public function is($state): bool
204			{
205			return $this->equals($state);
206			}
207
208			public function __toString(): string
209			{
210			return static::getMorphClass();
211			}
212
213			/**
214			* @param string\|\Spatie\ModelStates\Transition $transitionClass
			0 ignored issues – show Documentation introduced 2019-09-27 07:39 UTC by Report Bug Copy Issue Report There is no parameter named `$transitionClass`. Did you maybe mean `$transition`? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit. Consider the following example. The parameter `$ireland` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $ireland */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was changed, but the annotation was not. Loading history...
215			* @param mixed ...$args
216			*
217			* @return \Illuminate\Database\Eloquent\Model
218			*/
219			public function transition($transition, ...$args): Model
220			{
221			if (is_string($transition)) {
222			$transition = new $transition($this->model, ...$args);
223			}
224
225			if (method_exists($transition, 'canTransition')) {
226			if (! $transition->canTransition()) {
227			throw CouldNotPerformTransition::notAllowed($this->model, $transition);
228			}
229			}
230
231			$mutatedModel = app()->call([$transition, 'handle']);
232
233			event(new StateChanged($this, $mutatedModel->state, $transition, $this->model));
234
235			return $mutatedModel;
236			}
237
238			/**
239			* @param string\|\Spatie\ModelStates\State $state
240			* @param mixed ...$args
241			*
242			* @return \Illuminate\Database\Eloquent\Model
243			*/
244			public function transitionTo($state, ...$args): Model
245			{
246			if (! method_exists($this->model, 'resolveTransitionClass')) {
247			throw InvalidConfig::resolveTransitionNotFound($this->model);
248			}
249
250			$transition = $this->model->resolveTransitionClass(
251			static::resolveStateClass($this),
252			static::resolveStateClass($state)
253			);
254
255			return $this->transition($transition, ...$args);
256			}
257
258			/**
259			* Get the transitionable states from this state.
260			*
261			* @return array
262			*/
263			public function transitionableStates($field = null): array
264			{
265			return $this->model->transitionableStates(get_class($this), $field);
266			}
267
268			/**
269			* This method is used to find all available implementations of a given abstract state class.
270			* Finding all implementations can be done in two ways:.
271			*
272			* - The developer can define his own mapping directly in abstract state classes
273			* via the `protected $states = []` property
274			* - If no specific mapping was provided, the same directory where the abstract state class lives
275			* is scanned, and all concrete state classes extending the abstract state class will be provided.
276			*
277			* @return array
278			*/
279			private static function resolveStateMapping(): array
280			{
281			if (isset(static::$states)) {
282			return static::$states;
283			}
284
285			if (isset(self::$generatedMapping[static::class])) {
286			return self::$generatedMapping[static::class];
287			}
288
289			$reflection = new ReflectionClass(static::class);
290
291			['dirname' => $directory] = pathinfo($reflection->getFileName());
			0 ignored issues – show Bug introduced 2019-09-27 07:39 UTC by Report Bug Copy Issue Report The variable `$directory` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
292
293			$files = scandir($directory);
294
295			unset($files[0], $files[1]);
296
297			$namespace = $reflection->getNamespaceName();
298
299			$resolvedStates = [];
300
301			foreach ($files as $file) {
302			['filename' => $className] = pathinfo($file);
			0 ignored issues – show Bug introduced 2019-09-27 07:39 UTC by Report Bug Copy Issue Report The variable `$className` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
303
304			$stateClass = $namespace.'\\'.$className;
305
306			if (! is_subclass_of($stateClass, static::class)) {
307			continue;
308			}
309
310			$resolvedStates[] = $stateClass;
311			}
312
313			self::$generatedMapping[static::class] = $resolvedStates;
314
315			return self::$generatedMapping[static::class];
316			}
317
318			public function jsonSerialize()
319			{
320			return $this->getValue();
321			}
322			}
323

spatie / laravel-model-states

Push — master ( 1de2e3...928b36 )

State::transitionableStates() A

Complexity

Size

Duplication

Importance

Duplication Side-by-Side

Filter issues like