FieldsManager::__construct() - Code Metrics - tzurbaev/laravel-product-fields - Measure and Improve Code Quality continuously with Scrutinizer

FieldsManager::__construct() A
last analyzed 2017-09-03 12:47 UTC

↳ Parent: FieldsManager

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	5
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	3
nc	1
nop	2

<?php

namespace Laravel\ProductFields;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\DB;

class FieldsManager
{
    /**
     * @var ModelsResolver
     */
    protected $modelsResolver;

    /**
     * @var ResourcesResolver
     */
    protected $resourcesResolver;

    /**
     * FieldsManager constructor.
     *
     * @param ModelsResolver    $modelsResolver
     * @param ResourcesResolver $resourcesResolver
     */
    public function __construct(ModelsResolver $modelsResolver, ResourcesResolver $resourcesResolver)
    {
        $this->modelsResolver = $modelsResolver;
        $this->resourcesResolver = $resourcesResolver;
    }

    /**
     * Attach field values to the given resource.
     *
     * @param Model $resource
     * @param array $fieldValues
     *
     * @return Model
     */
    public function attachFields(Model $resource, array $fieldValues)
    {
        $fields = $this->createAttachableArray($fieldValues);

        $resource->fields()->attach($fields);

        return $resource;
    }

    /**
     * Sync field values with given resource.
     *
     * @param Model $resource
     * @param array $fieldValues
     * @param bool  $detach
     *
     * @return Model
     */
    public function syncFields(Model $resource, array $fieldValues, bool $detach = true)
    {
        $fields = $this->createAttachableArray($fieldValues);

        if ($detach === true) {
            $resource->fields()->sync($fields);
        } else {
            $resource->fields()->syncWithoutDetaching($fields);
        }

        return $resource;
    }

    /**
     * Detach field values from the given model.
     *
     * @param Model $resource
     * @param array $fieldIds
     *
     * @return Model
     */
    public function detachFields(Model $resource, array $fieldIds)
    {
        $resource->fields()->detach($fieldIds);

        return $resource;
    }

    /**
     * Transforms fieldId=>fieldValueId array to attachable list.
     *
     * @param array $fieldValues
     *
     * @return array
     */
    protected function createAttachableArray(array $fieldValues)
    {
        $fields = [];

        foreach ($fieldValues as $fieldId => $fieldValueId) {
            $fields[$fieldId] = ['field_value_id' => $fieldValueId];
        }

        return $fields;
    }

    /**
     * Loads resources that have exact field values attached.
     *
     * @param Collection $fieldValues
     *
     * @return Collection
     */
    public function getResourcesByFieldValues(Collection $fieldValues)
    {
        $valuesId = $this->resolveValuesId($fieldValues);
        $rows = $this->loadRowsByValuesId($valuesId);

        if (!count($rows)) {
            return collect([]);
        }

        return $this->resolveModels($rows);
    }

    /**
     * Loads resources by given field=>value pairs.
     *
     * @param Collection $filter
     *
     * @return Collection
     */
    public function filterResources(Collection $filter)
    {
        $rows = $this->loadRowsByFilter($filter);

        if (!count($rows)) {
            return collect([]);
        }

        return $this->resolveModels($rows);
    }

    /**
     * Resolves actual models via ResourceResolver and groups them by short key or model class name.
     *
     * @param Collection $rows
     *
     * @return Collection
     */
    protected function resolveModels($rows)
    {
        $groupped = $this->groupRowsByModelType($rows);
        $models = collect([]);

        $groupped->each(function (Collection $ids, string $model) use ($models) {
            $results = $this->resourcesResolver->resolve($model, $ids->toArray());

            if (!count($results['resources'])) {
                return;
            }

            $models->put($results['short_key'], collect($results['resources']));
        });

        return $models;
    }

    /**
     * Loads filtered rows from `filerables` table.
     *
     * @param Collection $filter
     *
     * @return Collection
     */
    protected function loadRowsByFilter(Collection $filter)
    {
        $query = DB::table($this->modelsResolver->morphName().'s');
        $fieldValueModel = $this->modelsResolver->fieldValue();

        $filter->each(function ($value, int $fieldId) use ($query, $fieldValueModel) {
            $query->orWhere(function ($q) use ($fieldId, $value, $fieldValueModel) {
                $q->where('field_id', $fieldId)
                    ->whereIn('field_value_id', $this->resolveValuesId($value, $fieldValueModel));
            });
        });

        return $query->get();
    }

    /**
     * Groups DB rows by attached model type.
     *
     * @param Collection $rows
     *
     * @return Collection
     */
    protected function groupRowsByModelType(Collection $rows)
    {
        $typeColumn = $this->modelsResolver->morphName().'_type';
        $idColumn = $this->modelsResolver->morphName().'_id';

        return collect($rows)->groupBy($typeColumn)->map->pluck($idColumn);
    }

    /**
     * Load rows that have given field_value_id list attached.
     *
     * @param array $valuesId
     *
     * @return Collection
     */
    protected function loadRowsByValuesId(array $valuesId)
    {
        $table = $this->modelsResolver->morphName().'s';

        return DB::table($table)->whereIn('field_value_id', $valuesId)->get();
    }

    /**
     * Creates array of value IDs from Collection or array of models/integers (or from single model/integer).
     *
     * @param \Illuminate\Database\Eloquent\Model|int|Collection|array $fieldValues
     * @param string                                                   $fieldValueModel = null
     *
     * @return array
     */
    protected function resolveValuesId($fieldValues, string $fieldValueModel = null): array
    {
        $fieldValueModel = $fieldValueModel ?? $this->modelsResolver->fieldValue();

        if ($fieldValues instanceof $fieldValueModel) {
            return [$fieldValues->id];
        } elseif (is_numeric($fieldValues)) {
            return [intval($fieldValues)];
        } elseif ($fieldValues instanceof Collection) {
            return $this->mapIdsFromCollection($fieldValues, $fieldValueModel);
        } elseif (is_array($fieldValues)) {
            return $this->mapIdsFromCollection(collect($fieldValues), $fieldValueModel);
        }

        return [];
    }

    /**
     * Extracts value IDs from collection.
     *
     * @param Collection $fieldValues
     * @param $fieldValueModel
     *
     * @return array
     */
    protected function mapIdsFromCollection(Collection $fieldValues, $fieldValueModel)
    {
        $values = $fieldValues->map(function ($value) use ($fieldValueModel) {
            if ($value instanceof $fieldValueModel) {
                return $value->id;
            } elseif (is_numeric($value)) {
                return intval($value);
            }

            return null;
        });

        return $values->reject(null)->toArray();
    }
}


1			<?php
2
3			namespace Laravel\ProductFields;
4
5			use Illuminate\Database\Eloquent\Model;
6			use Illuminate\Support\Collection;
7			use Illuminate\Support\Facades\DB;
8
9			class FieldsManager
10			{
11			/**
12			* @var ModelsResolver
13			*/
14			protected $modelsResolver;
15
16			/**
17			* @var ResourcesResolver
18			*/
19			protected $resourcesResolver;
20
21			/**
22			* FieldsManager constructor.
23			*
24			* @param ModelsResolver $modelsResolver
25			* @param ResourcesResolver $resourcesResolver
26			*/
27			public function __construct(ModelsResolver $modelsResolver, ResourcesResolver $resourcesResolver)
28			{
29			$this->modelsResolver = $modelsResolver;
30			$this->resourcesResolver = $resourcesResolver;
31			}
32
33			/**
34			* Attach field values to the given resource.
35			*
36			* @param Model $resource
37			* @param array $fieldValues
38			*
39			* @return Model
40			*/
41			public function attachFields(Model $resource, array $fieldValues)
42			{
43			$fields = $this->createAttachableArray($fieldValues);
44
45			$resource->fields()->attach($fields);
46
47			return $resource;
48			}
49
50			/**
51			* Sync field values with given resource.
52			*
53			* @param Model $resource
54			* @param array $fieldValues
55			* @param bool $detach
56			*
57			* @return Model
58			*/
59			public function syncFields(Model $resource, array $fieldValues, bool $detach = true)
60			{
61			$fields = $this->createAttachableArray($fieldValues);
62
63			if ($detach === true) {
64			$resource->fields()->sync($fields);
65			} else {
66			$resource->fields()->syncWithoutDetaching($fields);
67			}
68
69			return $resource;
70			}
71
72			/**
73			* Detach field values from the given model.
74			*
75			* @param Model $resource
76			* @param array $fieldIds
77			*
78			* @return Model
79			*/
80			public function detachFields(Model $resource, array $fieldIds)
81			{
82			$resource->fields()->detach($fieldIds);
83
84			return $resource;
85			}
86
87			/**
88			* Transforms fieldId=>fieldValueId array to attachable list.
89			*
90			* @param array $fieldValues
91			*
92			* @return array
93			*/
94			protected function createAttachableArray(array $fieldValues)
95			{
96			$fields = [];
97
98			foreach ($fieldValues as $fieldId => $fieldValueId) {
99			$fields[$fieldId] = ['field_value_id' => $fieldValueId];
100			}
101
102			return $fields;
103			}
104
105			/**
106			* Loads resources that have exact field values attached.
107			*
108			* @param Collection $fieldValues
109			*
110			* @return Collection
111			*/
112			public function getResourcesByFieldValues(Collection $fieldValues)
113			{
114			$valuesId = $this->resolveValuesId($fieldValues);
115			$rows = $this->loadRowsByValuesId($valuesId);
116
117			if (!count($rows)) {
118			return collect([]);
119			}
120
121			return $this->resolveModels($rows);
122			}
123
124			/**
125			* Loads resources by given field=>value pairs.
126			*
127			* @param Collection $filter
128			*
129			* @return Collection
130			*/
131			public function filterResources(Collection $filter)
132			{
133			$rows = $this->loadRowsByFilter($filter);
134
135			if (!count($rows)) {
136			return collect([]);
137			}
138
139			return $this->resolveModels($rows);
140			}
141
142			/**
143			* Resolves actual models via ResourceResolver and groups them by short key or model class name.
144			*
145			* @param Collection $rows
146			*
147			* @return Collection
148			*/
149			protected function resolveModels($rows)
150			{
151			$groupped = $this->groupRowsByModelType($rows);
152			$models = collect([]);
153
154			$groupped->each(function (Collection $ids, string $model) use ($models) {
155			$results = $this->resourcesResolver->resolve($model, $ids->toArray());
156
157			if (!count($results['resources'])) {
158			return;
159			}
160
161			$models->put($results['short_key'], collect($results['resources']));
162			});
163
164			return $models;
165			}
166
167			/**
168			* Loads filtered rows from `filerables` table.
169			*
170			* @param Collection $filter
171			*
172			* @return Collection
173			*/
174			protected function loadRowsByFilter(Collection $filter)
175			{
176			$query = DB::table($this->modelsResolver->morphName().'s');
177			$fieldValueModel = $this->modelsResolver->fieldValue();
178
179			$filter->each(function ($value, int $fieldId) use ($query, $fieldValueModel) {
180			$query->orWhere(function ($q) use ($fieldId, $value, $fieldValueModel) {
181			$q->where('field_id', $fieldId)
182			->whereIn('field_value_id', $this->resolveValuesId($value, $fieldValueModel));
183			});
184			});
185
186			return $query->get();
187			}
188
189			/**
190			* Groups DB rows by attached model type.
191			*
192			* @param Collection $rows
193			*
194			* @return Collection
195			*/
196			protected function groupRowsByModelType(Collection $rows)
197			{
198			$typeColumn = $this->modelsResolver->morphName().'_type';
199			$idColumn = $this->modelsResolver->morphName().'_id';
200
201			return collect($rows)->groupBy($typeColumn)->map->pluck($idColumn);
202			}
203
204			/**
205			* Load rows that have given field_value_id list attached.
206			*
207			* @param array $valuesId
208			*
209			* @return Collection
210			*/
211			protected function loadRowsByValuesId(array $valuesId)
212			{
213			$table = $this->modelsResolver->morphName().'s';
214
215			return DB::table($table)->whereIn('field_value_id', $valuesId)->get();
216			}
217
218			/**
219			* Creates array of value IDs from Collection or array of models/integers (or from single model/integer).
220			*
221			* @param \Illuminate\Database\Eloquent\Model\|int\|Collection\|array $fieldValues
222			* @param string $fieldValueModel = null
223			*
224			* @return array
225			*/
226			protected function resolveValuesId($fieldValues, string $fieldValueModel = null): array
227			{
228			$fieldValueModel = $fieldValueModel ?? $this->modelsResolver->fieldValue();
229
230			if ($fieldValues instanceof $fieldValueModel) {
231			return [$fieldValues->id];
232			} elseif (is_numeric($fieldValues)) {
233			return [intval($fieldValues)];
234			} elseif ($fieldValues instanceof Collection) {
235			return $this->mapIdsFromCollection($fieldValues, $fieldValueModel);
236			} elseif (is_array($fieldValues)) {
237			return $this->mapIdsFromCollection(collect($fieldValues), $fieldValueModel);
238			}
239
240			return [];
241			}
242
243			/**
244			* Extracts value IDs from collection.
245			*
246			* @param Collection $fieldValues
247			* @param $fieldValueModel
248			*
249			* @return array
250			*/
251			protected function mapIdsFromCollection(Collection $fieldValues, $fieldValueModel)
252			{
253			$values = $fieldValues->map(function ($value) use ($fieldValueModel) {
254			if ($value instanceof $fieldValueModel) {
255			return $value->id;
256			} elseif (is_numeric($value)) {
257			return intval($value);
258			}
259
260			return null;
261			});
262
263			return $values->reject(null)->toArray();
264			}
265			}
266

tzurbaev / laravel-product-fields

FieldsManager::__construct() A last analyzed 2017-09-03 12:47 UTC

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FieldsManager::__construct() A
last analyzed 2017-09-03 12:47 UTC