NamedFormElement::resolvePath() - Code Metrics - Inspection of "Fix test and fix form image" - LaravelRUS/SleepingOwlAdmin - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — bs4 ( 61e2ca...108bf2 )

by Andrey

created 2019-10-04 20:34 UTC

NamedFormElement::resolvePath() B

↳ Parent: NamedFormElement

Complexity

Conditions	8
Paths	5

Size

Total Lines	36
Code Lines	20

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	1	Features	0

Metric	Value
cc	8
eloc	20
c	2
b	1
f	0
nc	5
nop	0
dl	0
loc	36
rs	8.4444

<?php

namespace SleepingOwl\Admin\Form\Element;

use Closure;
use LogicException;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;
use Illuminate\Database\Eloquent\Model;
use SleepingOwl\Admin\Form\FormElement;
use Illuminate\Contracts\Support\Htmlable;
use KodiComponents\Support\HtmlAttributes;
use Illuminate\Database\Eloquent\Relations\HasOne;
use Illuminate\Database\Eloquent\Relations\MorphOne;
use Illuminate\Database\Eloquent\Relations\Relation;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use SleepingOwl\Admin\Exceptions\Form\FormElementException;

abstract class NamedFormElement extends FormElement
{
    use HtmlAttributes;

    /**
     * @var string
     */
    protected $path;

    /**
     * @var string
     */
    protected $name;

    /**
     * @var string
     */
    protected $id;

    /**
     * @var string
     */
    protected $modelAttributeKey;

    /**
     * @var string
     */
    protected $label;

    /**
     * @var string
     */
    protected $helpText;

    /**
     * @var mixed
     */
    protected $exactValue;

    /**
     * @var bool
     */
    protected $exactValueSet = false;

    /**
     * @var mixed
     */
    protected $defaultValue;

    /**
     * @var \Closure
     */
    protected $mutator;

    /**
     * @param string $path
     * @param string|null $label
     *
     * @throws FormElementException
     */
    public function __construct($path, $label = null)
    {
        if (empty($path)) {
            throw new FormElementException('You must specify field path');
        }

        $this->setPath($path);
        $this->setLabel($label);

        $parts = explode('.', $path);
        $this->setName($this->composeName($parts));
        $this->setId($this->composeId($path));
        $this->setModelAttributeKey(end($parts));

        parent::__construct();
    }

    /**
     * Compose html name from array like this: 'first[second][third]'.
     *
     * @param array $parts
     *
     * @return string
     */
    private function composeName(array $parts)
    {
        $name = array_shift($parts);

        while (! empty($parts)) {
            $part = array_shift($parts);
            $name .= "[$part]";
        }

        return $name;
    }

    /**
     * Compose html id from array like this: 'first__second__third'.
     *
     * @param string $path
     *
     * @return string
     */
    private function composeId(string $path)
    {
        $name = strtr($path, ['.' => '__', '[' => '__', ']' => '']);

        return $name;
    }

    /**
     * @return string
     */
    public function getPath()
    {
        return $this->path;
    }

    /**
     * @param string $path
     *
     * @return $this
     */
    public function setPath($path)
    {
        $this->path = $path;

        return $this;
    }

    /**
     * @return string
     */
    public function getNameKey()
    {
        return strtr($this->getName(), ['[' => '.', ']' => '']);
    }

    /**
     * @return string
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * @param string $name
     *
     * @return $this
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * @return string
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * @param string $id
     *
     * @return $this
     */
    public function setId($id)
    {
        $this->id = $id;

        return $this;
    }

    /**
     * @param string $id
     *
     * @return $this
     */
    public function setComposeId($id)
    {
        $this->setId($this->composeId($id));

        return $this;
    }

    /**
     * @return string
     */
    public function getLabel()
    {
        return $this->label;
    }

    /**
     * @param string $label
     *
     * @return $this
     */
    public function setLabel($label)
    {
        $this->label = $label;

        return $this;
    }

    /**
     * @return string
     */
    public function getModelAttributeKey()
    {
        return $this->modelAttributeKey;
    }

    /**
     * @param string $key
     *
     * @return $this
     */
    public function setModelAttributeKey($key)
    {
        $this->modelAttributeKey = $key;

        return $this;
    }

    /**
     * @return mixed
     */
    public function getDefaultValue()
    {
        return $this->defaultValue;
    }

    /**
     * @param mixed $defaultValue
     *
     * @return $this
     */
    public function setDefaultValue($defaultValue)
    {
        $this->defaultValue = $defaultValue;

        return $this;
    }

    /**
     * @return string|Htmlable $helpText
     */
    public function getHelpText()
    {
        if ($this->helpText instanceof Htmlable) {

            return $this->helpText->toHtml();
        }

        return $this->helpText;
    }

    /**
     * @param string|Htmlable $helpText
     *
     * @return $this
     */
    public function setHelpText($helpText)
    {
        $this->helpText = $helpText;
class Id
{
    public $id;

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

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}

        return $this;
    }

    /**
     * @param string|null $message
     *
     * @return $this
     */
    public function required($message = null)
    {
        $this->addValidationRule('required', $message);

        return $this;
    }

    /**
     * @param string|null $message
     *
     * @return $this
     */
    public function unique($message = null)
    {
        $this->addValidationRule('_unique');

        if (! is_null($message)) {
            $this->addValidationMessage('unique', $message);
        }

        return $this;
    }

    /**
     * @return array
     */
    public function getValidationMessages()
    {
        $messages = parent::getValidationMessages();

        foreach ($messages as $rule => $message) {
            $messages[$this->getName().'.'.$rule] = $message;
            unset($messages[$rule]);
        }

        return $messages;
    }

    /**
     * @return array
     */
    public function getValidationLabels()
    {
        return [$this->getPath() => $this->getLabel()];
    }

    /**
     * If FormElement has `_unique` rule, it will get all appropriate
     * validation rules based on underlying model.
     *
     * @return array
     */
    public function getValidationRules()
    {
        $rules = parent::getValidationRules();

        foreach ($rules as &$rule) {
            if ($rule !== '_unique') {
                continue;
            }

            $model = $this->resolvePath();
            $table = $model->getTable();

            $rule = 'unique:'.$table.','.$this->getModelAttributeKey();
            if ($model->exists) {
                $rule .= ','.$model->getKey();
            }
        }
        unset($rule);

        return [$this->getPath() => $rules];
    }

    /**
     * Get model related to form element.
     *
     * @return mixed
     */
    public function resolvePath()
    {
        $model = $this->getModel();
        $relations = explode('.', $this->getPath());
        $count = count($relations);

        if ($count === 1) {
            return $model;
        }

        foreach ($relations as $relation) {
            if ($count === 1) {
                return $model;
            }

            if ($model->exists && ($value = $model->getAttribute($relation)) instanceof Model) {
                $model = $value;

                $count--;
                continue;
            }

            if (method_exists($model, $relation)) {
                $relation = $model->{$relation}();

                if ($relation instanceof Relation) {
                    $model = $relation->getModel();
                    $count--;
                    continue;
                }
            }

            break;
        }

        throw new LogicException("Can not resolve path for field '{$this->getPath()}'. Probably relation definition is incorrect");
    }

    /**
     * @param \Illuminate\Http\Request $request
     *
     * @return array|string
     */
    public function getValueFromRequest(\Illuminate\Http\Request $request)
    {
        if ($request->hasSession() && ! is_null($value = $request->old($this->getPath()))) {
            return $value;
        }

        return $request->input($this->getPath());
    }

    /**
     * @return mixed
     */
    public function getValueFromModel()
    {
        if (($value = $this->getValueFromRequest(request())) !== null) {

            return $value;
        }

        $model = $this->getModel();
        $path = $this->getPath();
        $value = $this->getDefaultValue();

        if ($model === null || ! $model->exists) {
            /*
              * First check for model existence must go here, before all checks are made
              */
            return $value;
        }

        /*
          * Implement json parsing
          */
        if (strpos($path, '->') !== false) {
            $casts = collect($model->getCasts());
            $jsonParts = collect(explode('->', $path));

            $jsonAttr = $model->{$jsonParts->first()};

            $cast = $casts->get($jsonParts->first(), false);

            if ($cast === 'object') {
                $jsonAttr = json_decode(json_encode($jsonAttr), true);
            } elseif ($cast !== 'array') {
                $jsonAttr = json_decode($jsonAttr);
            }

            return Arr::get($jsonAttr, $jsonParts->slice(1)->implode('.'));
        }

        $relations = explode('.', $path);
        $count = count($relations);

        if ($count === 1) {
            $attribute = $model->getAttribute($this->getModelAttributeKey());
            if (! empty($attribute) || $attribute === 0 || is_null($value)) {
                return $attribute;
            }
        }

        foreach ($relations as $relation) {
            if ($model->{$relation} instanceof Model) {
                $model = $model->{$relation};
                continue;
            }
            if ($count === 2) {
                if (Str::contains($relation, '->')) {
                    $parts = explode('->', $relation);
                    $relationField = array_shift($array);
                    $jsonPath = implode('.', $parts);
                    $attribute = data_get($model->{$relationField}, $jsonPath);
                } else {
                    $attribute = $model->getAttribute($relation);
                }
                if (! empty($attribute) || is_null($value)) {
                    return $attribute;
                }
            }

            if ($this->getDefaultValue() === null) {
                throw new LogicException("Can not fetch value for field '{$path}'. Probably relation definition is incorrect");
            }
        }

        return $value;
    }

    /**
     * @param \Illuminate\Http\Request $request
     *
     * @return void
     */
    public function save(\Illuminate\Http\Request $request)
    {
        $this->setModelAttribute($this->getValueFromRequest($request));
    }

    /**
     * @param mixed $value
     *
     * @return void
     */
    public function setModelAttribute($value)
    {
        $model = $this->getModelByPath($this->getPath());

        if ($this->isValueSkipped()) {
            return;
        }

        $model->setAttribute($this->getModelAttributeKey(), $this->prepareValue($value));
    }

    /**
     * @param string $path
     *
     * @return Model|null
     */
    protected function getModelByPath($path)
    {
        $model = $this->getModel();

        $relations = explode('.', $path);
        $count = count($relations);
        $i = 1;

        if ($count > 1) {
            $i++;
            $previousModel = $model;

            /*

              * @var Model $model
              */
            foreach ($relations as $relation) {
                $relatedModel = null;
                if ($previousModel->getAttribute($relation) instanceof Model) {
                    $relatedModel = $previousModel->getAttribute($relation);
                } elseif (method_exists($previousModel, $relation)) {

                    /**
                     * @var Relation
                     */
                    $relationObject = $previousModel->{$relation}();

                    switch (get_class($relationObject)) {
                        case BelongsTo::class:
                            $relationObject->associate($relatedModel = $relationObject->getRelated());
                            break;
                        case HasOne::class:
                        case MorphOne::class:
                            $relatedModel = $relationObject->getRelated()->newInstance();
                            $relatedModel->setAttribute($this->getForeignKeyNameFromRelation($relationObject), $relationObject->getParentKey());
                            $model->setRelation($relation, $relatedModel);
                            break;
                    }
                }

                $previousModel = $relatedModel;
                if ($i === $count) {
                    break;
                } elseif (is_null($relatedModel)) {
                    throw new LogicException("Field [{$path}] can't be mapped to relations of model ".get_class($model).'. Probably some dot delimeted segment is not a supported relation type');
                }
            }

            $model = $previousModel;
        }

        return $model;
    }

    protected function getForeignKeyNameFromRelation($relation)
    {
        return method_exists($relation, 'getForeignKeyName') ? $relation->getForeignKeyName()
            : $relation->getPlainForeignKey();
    }

    /**
     * Field->mutateValue(function($value) {
     *     return bcrypt($value);
     * }).
     *
     * @param \Closure $mutator
     *
     * @return $this
     */
    public function mutateValue(Closure $mutator)
    {
        $this->mutator = $mutator;

        return $this;
    }

    /**
     * @return bool
     */
    public function hasMutator()
    {
        return is_callable($this->mutator);
    }

    /**
     * @param mixed $value
     *
     * @return mixed
     */
    public function prepareValue($value)
    {
        if ($this->hasMutator()) {
            $value = call_user_func($this->mutator, $value);
        }

        return $value;
    }

    /**
     * @return mixed
     */
    public function getExactValue()
    {
        return $this->exactValue;
    }

    /**
     * @param mixed $exactValue
     *
     * @return $this
     */
    public function setExactValue($exactValue)
    {
        $this->exactValue = $exactValue;
        $this->exactValueSet = true;

        return $this;
    }

    /**
     * @return array
     */
    public function toArray()
    {
        $this->setHtmlAttributes([
            'id' => $this->getId(),
            'name' => $this->getName(),
        ]);

        return array_merge(parent::toArray(), [
            'id' => $this->getId(),
            'value' => $this->exactValueSet ? $this->getExactValue() : $this->getValueFromModel(),
            'name' => $this->getName(),
            'path' => $this->getPath(),
            'label' => $this->getLabel(),
            'attributes' => $this->htmlAttributesToString(),
            'helpText' => $this->getHelpText(),
            'required' => in_array('required', $this->validationRules),
        ]);
    }
}


1			<?php
2
3			namespace SleepingOwl\Admin\Form\Element;
4
5			use Closure;
6			use LogicException;
7			use Illuminate\Support\Arr;
8			use Illuminate\Support\Str;
9			use Illuminate\Database\Eloquent\Model;
10			use SleepingOwl\Admin\Form\FormElement;
11			use Illuminate\Contracts\Support\Htmlable;
12			use KodiComponents\Support\HtmlAttributes;
13			use Illuminate\Database\Eloquent\Relations\HasOne;
14			use Illuminate\Database\Eloquent\Relations\MorphOne;
15			use Illuminate\Database\Eloquent\Relations\Relation;
16			use Illuminate\Database\Eloquent\Relations\BelongsTo;
17			use SleepingOwl\Admin\Exceptions\Form\FormElementException;
18
19			abstract class NamedFormElement extends FormElement
20			{
21			use HtmlAttributes;
22
23			/**
24			* @var string
25			*/
26			protected $path;
27
28			/**
29			* @var string
30			*/
31			protected $name;
32
33			/**
34			* @var string
35			*/
36			protected $id;
37
38			/**
39			* @var string
40			*/
41			protected $modelAttributeKey;
42
43			/**
44			* @var string
45			*/
46			protected $label;
47
48			/**
49			* @var string
50			*/
51			protected $helpText;
52
53			/**
54			* @var mixed
55			*/
56			protected $exactValue;
57
58			/**
59			* @var bool
60			*/
61			protected $exactValueSet = false;
62
63			/**
64			* @var mixed
65			*/
66			protected $defaultValue;
67
68			/**
69			* @var \Closure
70			*/
71			protected $mutator;
72
73			/**
74			* @param string $path
75			* @param string\|null $label
76			*
77			* @throws FormElementException
78			*/
79			public function __construct($path, $label = null)
80			{
81			if (empty($path)) {
82			throw new FormElementException('You must specify field path');
83			}
84
85			$this->setPath($path);
86			$this->setLabel($label);
87
88			$parts = explode('.', $path);
89			$this->setName($this->composeName($parts));
90			$this->setId($this->composeId($path));
91			$this->setModelAttributeKey(end($parts));
92
93			parent::__construct();
94			}
95
96			/**
97			* Compose html name from array like this: 'first[second][third]'.
98			*
99			* @param array $parts
100			*
101			* @return string
102			*/
103			private function composeName(array $parts)
104			{
105			$name = array_shift($parts);
106
107			while (! empty($parts)) {
108			$part = array_shift($parts);
109			$name .= "[$part]";
110			}
111
112			return $name;
113			}
114
115			/**
116			* Compose html id from array like this: 'first__second__third'.
117			*
118			* @param string $path
119			*
120			* @return string
121			*/
122			private function composeId(string $path)
123			{
124			$name = strtr($path, ['.' => '__', '[' => '__', ']' => '']);
125
126			return $name;
127			}
128
129			/**
130			* @return string
131			*/
132			public function getPath()
133			{
134			return $this->path;
135			}
136
137			/**
138			* @param string $path
139			*
140			* @return $this
141			*/
142			public function setPath($path)
143			{
144			$this->path = $path;
145
146			return $this;
147			}
148
149			/**
150			* @return string
151			*/
152			public function getNameKey()
153			{
154			return strtr($this->getName(), ['[' => '.', ']' => '']);
155			}
156
157			/**
158			* @return string
159			*/
160			public function getName()
161			{
162			return $this->name;
163			}
164
165			/**
166			* @param string $name
167			*
168			* @return $this
169			*/
170			public function setName($name)
171			{
172			$this->name = $name;
173
174			return $this;
175			}
176
177			/**
178			* @return string
179			*/
180			public function getId()
181			{
182			return $this->id;
183			}
184
185			/**
186			* @param string $id
187			*
188			* @return $this
189			*/
190			public function setId($id)
191			{
192			$this->id = $id;
193
194			return $this;
195			}
196
197			/**
198			* @param string $id
199			*
200			* @return $this
201			*/
202			public function setComposeId($id)
203			{
204			$this->setId($this->composeId($id));
205
206			return $this;
207			}
208
209			/**
210			* @return string
211			*/
212			public function getLabel()
213			{
214			return $this->label;
215			}
216
217			/**
218			* @param string $label
219			*
220			* @return $this
221			*/
222			public function setLabel($label)
223			{
224			$this->label = $label;
225
226			return $this;
227			}
228
229			/**
230			* @return string
231			*/
232			public function getModelAttributeKey()
233			{
234			return $this->modelAttributeKey;
235			}
236
237			/**
238			* @param string $key
239			*
240			* @return $this
241			*/
242			public function setModelAttributeKey($key)
243			{
244			$this->modelAttributeKey = $key;
245
246			return $this;
247			}
248
249			/**
250			* @return mixed
251			*/
252			public function getDefaultValue()
253			{
254			return $this->defaultValue;
255			}
256
257			/**
258			* @param mixed $defaultValue
259			*
260			* @return $this
261			*/
262			public function setDefaultValue($defaultValue)
263			{
264			$this->defaultValue = $defaultValue;
265
266			return $this;
267			}
268
269			/**
270			* @return string\|Htmlable $helpText
271			*/
272			public function getHelpText()
273			{
274			if ($this->helpText instanceof Htmlable) {
			0 ignored issues – show introduced 2019-03-13 14:44 UTC by Report Bug Copy Issue Report `$this->helpText` is never a sub-type of `Illuminate\Contracts\Support\Htmlable`. Loading history...
275			return $this->helpText->toHtml();
276			}
277
278			return $this->helpText;
279			}
280
281			/**
282			* @param string\|Htmlable $helpText
283			*
284			* @return $this
285			*/
286			public function setHelpText($helpText)
287			{
288			$this->helpText = $helpText;
			0 ignored issues – show Documentation Bug introduced 2018-05-21 21:05 UTC by Report Bug Copy Issue Report It seems like `$helpText` can also be of type `Illuminate\Contracts\Support\Htmlable`. However, the property `$helpText` is declared as type `string`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
289
290			return $this;
291			}
292
293			/**
294			* @param string\|null $message
295			*
296			* @return $this
297			*/
298			public function required($message = null)
299			{
300			$this->addValidationRule('required', $message);
301
302			return $this;
303			}
304
305			/**
306			* @param string\|null $message
307			*
308			* @return $this
309			*/
310			public function unique($message = null)
311			{
312			$this->addValidationRule('_unique');
313
314			if (! is_null($message)) {
315			$this->addValidationMessage('unique', $message);
316			}
317
318			return $this;
319			}
320
321			/**
322			* @return array
323			*/
324			public function getValidationMessages()
325			{
326			$messages = parent::getValidationMessages();
327
328			foreach ($messages as $rule => $message) {
329			$messages[$this->getName().'.'.$rule] = $message;
330			unset($messages[$rule]);
331			}
332
333			return $messages;
334			}
335
336			/**
337			* @return array
338			*/
339			public function getValidationLabels()
340			{
341			return [$this->getPath() => $this->getLabel()];
342			}
343
344			/**
345			* If FormElement has `_unique` rule, it will get all appropriate
346			* validation rules based on underlying model.
347			*
348			* @return array
349			*/
350			public function getValidationRules()
351			{
352			$rules = parent::getValidationRules();
353
354			foreach ($rules as &$rule) {
355			if ($rule !== '_unique') {
356			continue;
357			}
358
359			$model = $this->resolvePath();
360			$table = $model->getTable();
361
362			$rule = 'unique:'.$table.','.$this->getModelAttributeKey();
363			if ($model->exists) {
364			$rule .= ','.$model->getKey();
365			}
366			}
367			unset($rule);
368
369			return [$this->getPath() => $rules];
370			}
371
372			/**
373			* Get model related to form element.
374			*
375			* @return mixed
376			*/
377			public function resolvePath()
378			{
379			$model = $this->getModel();
380			$relations = explode('.', $this->getPath());
381			$count = count($relations);
382
383			if ($count === 1) {
384			return $model;
385			}
386
387			foreach ($relations as $relation) {
388			if ($count === 1) {
389			return $model;
390			}
391
392			if ($model->exists && ($value = $model->getAttribute($relation)) instanceof Model) {
393			$model = $value;
394
395			$count--;
396			continue;
397			}
398
399			if (method_exists($model, $relation)) {
400			$relation = $model->{$relation}();
401
402			if ($relation instanceof Relation) {
403			$model = $relation->getModel();
404			$count--;
405			continue;
406			}
407			}
408
409			break;
410			}
411
412			throw new LogicException("Can not resolve path for field '{$this->getPath()}'. Probably relation definition is incorrect");
413			}
414
415			/**
416			* @param \Illuminate\Http\Request $request
417			*
418			* @return array\|string
419			*/
420			public function getValueFromRequest(\Illuminate\Http\Request $request)
421			{
422			if ($request->hasSession() && ! is_null($value = $request->old($this->getPath()))) {
423			return $value;
424			}
425
426			return $request->input($this->getPath());
427			}
428
429			/**
430			* @return mixed
431			*/
432			public function getValueFromModel()
433			{
434			if (($value = $this->getValueFromRequest(request())) !== null) {
			0 ignored issues – show introduced 2019-04-11 23:38 UTC by Report Bug Copy Issue Report The condition `$value = $this->getValue...est(request()) !== null` is always `true`. Loading history...
435			return $value;
436			}
437
438			$model = $this->getModel();
439			$path = $this->getPath();
440			$value = $this->getDefaultValue();
441
442			if ($model === null \|\| ! $model->exists) {
443			/*
444			* First check for model existence must go here, before all checks are made
445			*/
446			return $value;
447			}
448
449			/*
450			* Implement json parsing
451			*/
452			if (strpos($path, '->') !== false) {
453			$casts = collect($model->getCasts());
454			$jsonParts = collect(explode('->', $path));
455
456			$jsonAttr = $model->{$jsonParts->first()};
457
458			$cast = $casts->get($jsonParts->first(), false);
459
460			if ($cast === 'object') {
461			$jsonAttr = json_decode(json_encode($jsonAttr), true);
462			} elseif ($cast !== 'array') {
463			$jsonAttr = json_decode($jsonAttr);
464			}
465
466			return Arr::get($jsonAttr, $jsonParts->slice(1)->implode('.'));
467			}
468
469			$relations = explode('.', $path);
470			$count = count($relations);
471
472			if ($count === 1) {
473			$attribute = $model->getAttribute($this->getModelAttributeKey());
474			if (! empty($attribute) \|\| $attribute === 0 \|\| is_null($value)) {
475			return $attribute;
476			}
477			}
478
479			foreach ($relations as $relation) {
480			if ($model->{$relation} instanceof Model) {
481			$model = $model->{$relation};
482			continue;
483			}
484			if ($count === 2) {
485			if (Str::contains($relation, '->')) {
486			$parts = explode('->', $relation);
487			$relationField = array_shift($array);
488			$jsonPath = implode('.', $parts);
489			$attribute = data_get($model->{$relationField}, $jsonPath);
490			} else {
491			$attribute = $model->getAttribute($relation);
492			}
493			if (! empty($attribute) \|\| is_null($value)) {
494			return $attribute;
495			}
496			}
497
498			if ($this->getDefaultValue() === null) {
499			throw new LogicException("Can not fetch value for field '{$path}'. Probably relation definition is incorrect");
500			}
501			}
502
503			return $value;
504			}
505
506			/**
507			* @param \Illuminate\Http\Request $request
508			*
509			* @return void
510			*/
511			public function save(\Illuminate\Http\Request $request)
512			{
513			$this->setModelAttribute($this->getValueFromRequest($request));
514			}
515
516			/**
517			* @param mixed $value
518			*
519			* @return void
520			*/
521			public function setModelAttribute($value)
522			{
523			$model = $this->getModelByPath($this->getPath());
524
525			if ($this->isValueSkipped()) {
526			return;
527			}
528
529			$model->setAttribute($this->getModelAttributeKey(), $this->prepareValue($value));
530			}
531
532			/**
533			* @param string $path
534			*
535			* @return Model\|null
536			*/
537			protected function getModelByPath($path)
538			{
539			$model = $this->getModel();
540
541			$relations = explode('.', $path);
542			$count = count($relations);
543			$i = 1;
544
545			if ($count > 1) {
546			$i++;
547			$previousModel = $model;
548
549			/*
			0 ignored issues – show Unused Code Comprehensibility introduced 2019-10-02 11:36 UTC by Report Bug Copy Issue Report `38%` of this comment could be valid code. Did you maybe forget this after debugging? Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it. The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production. This check looks for comments that seem to be mostly valid code and reports them. Loading history...
550			* @var Model $model
551			*/
552			foreach ($relations as $relation) {
553			$relatedModel = null;
554			if ($previousModel->getAttribute($relation) instanceof Model) {
555			$relatedModel = $previousModel->getAttribute($relation);
556			} elseif (method_exists($previousModel, $relation)) {
557
558			/**
559			* @var Relation
560			*/
561			$relationObject = $previousModel->{$relation}();
562
563			switch (get_class($relationObject)) {
564			case BelongsTo::class:
565			$relationObject->associate($relatedModel = $relationObject->getRelated());
566			break;
567			case HasOne::class:
568			case MorphOne::class:
569			$relatedModel = $relationObject->getRelated()->newInstance();
570			$relatedModel->setAttribute($this->getForeignKeyNameFromRelation($relationObject), $relationObject->getParentKey());
571			$model->setRelation($relation, $relatedModel);
572			break;
573			}
574			}
575
576			$previousModel = $relatedModel;
577			if ($i === $count) {
578			break;
579			} elseif (is_null($relatedModel)) {
580			throw new LogicException("Field [{$path}] can't be mapped to relations of model ".get_class($model).'. Probably some dot delimeted segment is not a supported relation type');
581			}
582			}
583
584			$model = $previousModel;
585			}
586
587			return $model;
588			}
589
590			protected function getForeignKeyNameFromRelation($relation)
591			{
592			return method_exists($relation, 'getForeignKeyName') ? $relation->getForeignKeyName()
593			: $relation->getPlainForeignKey();
594			}
595
596			/**
597			* Field->mutateValue(function($value) {
598			* return bcrypt($value);
599			* }).
600			*
601			* @param \Closure $mutator
602			*
603			* @return $this
604			*/
605			public function mutateValue(Closure $mutator)
606			{
607			$this->mutator = $mutator;
608
609			return $this;
610			}
611
612			/**
613			* @return bool
614			*/
615			public function hasMutator()
616			{
617			return is_callable($this->mutator);
618			}
619
620			/**
621			* @param mixed $value
622			*
623			* @return mixed
624			*/
625			public function prepareValue($value)
626			{
627			if ($this->hasMutator()) {
628			$value = call_user_func($this->mutator, $value);
629			}
630
631			return $value;
632			}
633
634			/**
635			* @return mixed
636			*/
637			public function getExactValue()
638			{
639			return $this->exactValue;
640			}
641
642			/**
643			* @param mixed $exactValue
644			*
645			* @return $this
646			*/
647			public function setExactValue($exactValue)
648			{
649			$this->exactValue = $exactValue;
650			$this->exactValueSet = true;
651
652			return $this;
653			}
654
655			/**
656			* @return array
657			*/
658			public function toArray()
659			{
660			$this->setHtmlAttributes([
661			'id' => $this->getId(),
662			'name' => $this->getName(),
663			]);
664
665			return array_merge(parent::toArray(), [
666			'id' => $this->getId(),
667			'value' => $this->exactValueSet ? $this->getExactValue() : $this->getValueFromModel(),
668			'name' => $this->getName(),
669			'path' => $this->getPath(),
670			'label' => $this->getLabel(),
671			'attributes' => $this->htmlAttributesToString(),
672			'helpText' => $this->getHelpText(),
673			'required' => in_array('required', $this->validationRules),
674			]);
675			}
676			}
677

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NamedFormElement::resolvePath() B

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