FieldResolver::getSourceName() - Code Metrics - Inspection of "Some minor cleanups (#129)" - Firesphere/silverstripe-solr-search - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — hans/bufferadd ( dd4951...8221cf )

by Simon

created 2019-10-21 05:49 UTC

FieldResolver::getSourceName() A

↳ Parent: FieldResolver

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
eloc	2
c	0
b	0
f	0
dl	0
loc	5
ccs	3
cts	3
cp	1
rs	10
cc	1
nc	1
nop	1
crap	1

<?php

namespace Firesphere\SolrSearch\Helpers;

use Exception;
use Firesphere\SolrSearch\Traits\GetSetSearchResolverTrait;
use ReflectionException;
use SilverStripe\Core\ClassInfo;
use SilverStripe\ORM\DataObject;
use SilverStripe\ORM\DataObjectSchema;

/**
 * Class FieldResolver
 * Some additional introspection tools that are used often by the fulltext search code
 *
 * @package Firesphere\SolrSearch\Helpers
 */
class FieldResolver
{
    use GetSetSearchResolverTrait;
    /**
     * @var array Class Ancestry
     */
    protected static $ancestry = [];
    /**
     * @var array Class Hierarchy, could be replaced with Ancestry
     */
    protected static $hierarchy = [];

    /**
     * Check if class is subclass of (a) the class in $instanceOf, or (b) any of the classes in the array $instanceOf
     *
     * @param string $class Name of the class to test
     * @param array|string $instanceOf Class ancestry it should be in
     * @return bool
     * @todo remove in favour of DataObjectSchema
     * @static
     */
    public static function isSubclassOf($class, $instanceOf): bool
    {
        $ancestry = self::$ancestry[$class] ?? self::$ancestry[$class] = ClassInfo::ancestry($class);

        return is_array($instanceOf) ?
            (bool)array_intersect($instanceOf, $ancestry) :
            array_key_exists($instanceOf, $ancestry);
    }

    /**
     * Resolve a field ancestry
     *
     * @param $field
     * @return array
     * @throws Exception
     *
     */
    public function resolveField($field)
    {
        $fullfield = str_replace('.', '_', $field);

        $buildSources = $this->getBuildSources();

        $found = [];

        if (strpos($field, '.') !== false) {
            $lookups = explode('.', $field);
            $field = array_pop($lookups);

            foreach ($lookups as $lookup) {
                $buildSources = $this->getNext($buildSources, $lookup);
            }
        }

        $found = $this->getFieldOptions($field, $buildSources, $fullfield, $found);

        return $found;
    }

    /**
     * Get the sources to build in to a Solr field
     *
     * @return array
     */
    protected function getBuildSources(): array
    {
        $sources = $this->index->getClasses();
        $buildSources = [];

        $schemaHelper = DataObject::getSchema();
        foreach ($sources as $source) {
            $buildSources[$source]['base'] = $schemaHelper->baseDataClass($source);
        }

        return $buildSources;
    }

    /**
     * Get the next lookup item from the buildSources
     *
     * @param array $buildSources
     * @param $lookup
     * @return array
     * @throws Exception
     */
    protected function getNext(array $buildSources, $lookup): array
    {
        $next = [];

        // @todo remove repetition
        foreach ($buildSources as $source => $baseOptions) {
            $next = $this->resolveRelation($source, $lookup, $next);
        }

        $buildSources = $next;

        return $buildSources;
    }

    /**
     * Resolve relations if possible
     *
     * @param string $source
     * @param $lookup
     * @param array $next
     * @return array
     * @throws Exception
     */
    protected function resolveRelation($source, $lookup, array $next): array
    {
        $source = $this->getSourceName($source);

        foreach (self::getHierarchy($source) as $dataClass) {
            $schema = DataObject::getSchema();
            $options = ['multi_valued' => false];

            $class = $this->getRelationData($lookup, $schema, $dataClass, $options);

            list($options, $next) = $this->getNextOption($next, $class, $options, $dataClass);
        }

        return $next;
    }

    /**
     * This is used to clean the source name from suffix
     * suffixes are needed to support multiple relations with the same name on different page types
     *
     * @param string $source
     * @return string
     */
    private function getSourceName($source)
    {
        $explodedSource = explode('|xkcd|', $source);

        return $explodedSource[0];
    }

    /**
     * Get all the classes involved in a DataObject hierarchy - both super and optionally subclasses
     *
     * @static
     * @param string $class - The class to query
     * @param bool $includeSubclasses - True to return subclasses as well as super classes
     * @param bool $dataOnly - True to only return classes that have tables
     * @return array - Integer keys, String values as classes sorted by depth (most super first)
     * @throws ReflectionException
     */
    public static function getHierarchy($class, $includeSubclasses = true, $dataOnly = false): array
    {
        // Generate the unique key for this class and it's call type
        // It's a short-lived cache key for the duration of the request
        $cacheKey = sprintf('%s-%s-%s', $class, $includeSubclasses ? 'sc' : 'an', $dataOnly ? 'do' : 'al');

        if (!isset(self::$hierarchy[$cacheKey])) {
            $classes = self::getHierarchyClasses($class, $includeSubclasses);

            if ($dataOnly) {
                $classes = array_filter($classes, static function ($class) {
                    return DataObject::getSchema()->classHasTable($class);
                });
            }

            self::$hierarchy[$cacheKey] = array_values($classes);

            return array_values($classes);
        }

        return self::$hierarchy[$cacheKey];
    }

    /**
     * Get the hierarchy for a class
     *
     * @param $class
     * @param $includeSubclasses
     * @return array
     * @throws ReflectionException
     * @todo clean this up to be more compatible with PHP features
     */
    protected static function getHierarchyClasses($class, $includeSubclasses): array
    {
        $classes = array_values(ClassInfo::ancestry($class));
        $classes = self::getSubClasses($class, $includeSubclasses, $classes);

        $classes = array_unique($classes);
        $classes = self::excludeDataObjectIDx($classes);

        return $classes;
    }

    /**
     * Get the subclasses for the given class
     * Should be replaced with PHP native methods
     *
     * @param $class
     * @param $includeSubclasses
     * @param array $classes
     * @return array
     * @throws ReflectionException
     */
    private static function getSubClasses($class, $includeSubclasses, array $classes): array
    {
        if ($includeSubclasses) {
            $subClasses = ClassInfo::subclassesFor($class);
            $classes = array_merge($classes, array_values($subClasses));
        }

        return $classes;
    }

    /**
     * Objects to exclude from the index
     *
     * @param array $classes
     * @return array
     */
    private static function excludeDataObjectIDx(array $classes): array
    {
        // Remove all classes below DataObject from the list
        $idx = array_search(DataObject::class, $classes, true);
        if ($idx !== false) {
            array_splice($classes, 0, $idx + 1);
        }

        return $classes;
    }

    /**
     * Relational data
     *
     * @param $lookup
     * @param DataObjectSchema $schema
     * @param $className
     * @param array $options
     * @return string|array|null
     * @throws Exception
     */
    protected function getRelationData($lookup, DataObjectSchema $schema, $className, array &$options)
    {
        if ($hasOne = $schema->hasOneComponent($className, $lookup)) {
            return $hasOne;
        }
        $options['multi_valued'] = true;
        if ($hasMany = $schema->hasManyComponent($className, $lookup)) {
            return $hasMany;
        }
        if ($key = $schema->manyManyComponent($className, $lookup)) {
            return $key['childClass'];
        }

        return null;
    }

    /**
     * @param array $next
     * @param array|string $class
     * @param array $options
     * @param string $dataClass
     * @return array
     */
    protected function getNextOption(array $next, $class, array $options, $dataClass): array
    {
        if (is_string($class) && $class) {
            if (!isset($options['origin'])) {
                $options['origin'] = $dataClass;
            }

            // we add suffix here to prevent the relation to be overwritten by other instances
            // all sources lookups must clean the source name before reading it via getSourceName()
            $next[$class . '|xkcd|' . $dataClass] = $options;
        }

        return [$options, $next];
    }

    /**
     * Create field options for the given index field
     *
     * @param $field
     * @param array $sources
     * @param string $fullfield
     * @param array $found
     * @return array
     * @throws ReflectionException
     */
    protected function getFieldOptions($field, array $sources, $fullfield, array $found): array
    {
        foreach ($sources as $class => $fieldOptions) {
            $class = $this->getSourceName($class);
            $dataclasses = self::getHierarchy($class);

            $fields = DataObject::getSchema()->databaseFields($class);
            while ($dataclass = array_shift($dataclasses)) {
                $type = $this->getType($fields, $field, $dataclass);

                if ($type) {
                    // Don't search through child classes of a class we matched on.
                    $dataclasses = array_diff($dataclasses, array_values(ClassInfo::subclassesFor($dataclass)));
                    // Trim arguments off the type string
                    if (preg_match('/^(\w+)\(/', $type, $match)) {
                        $type = $match[1];
                    }

                    $found = $this->getFoundOriginData($field, $fullfield, $fieldOptions, $dataclass, $type, $found);
                }
            }
        }

        return $found;
    }

    /**
     * Get the type of this field
     *
     * @param array $fields
     * @param string $field
     * @param string $dataclass
     * @return string
     */
    protected function getType($fields, $field, $dataclass): string
    {
        if (!empty($fields[$field])) {
            return $fields[$field];
        }

        /** @var DataObject $singleton */
        $singleton = singleton($dataclass);

        $type = $singleton->castingClass($field);

        if (!$type) {
            // @todo should this be null?
            $type = 'String';
        }

        return $type;
    }

    /**
     * FoundOriginData is a helper to make sure the options are properly set.
     *
     * @param string $field
     * @param string $fullField
     * @param array $fieldOptions
     * @param string $dataclass
     * @param string $type
     * @param array $found
     * @return array
     */
    private function getFoundOriginData(
        $field,
        $fullField,
        $fieldOptions,
        $dataclass,
        $type,
        $found
    ): array {
        // Get the origin
        $origin = $fieldOptions['origin'] ?? $dataclass;

        $found["{$origin}_{$fullField}"] = [
            'name'         => "{$origin}_{$fullField}",
            'field'        => $field,
            'fullfield'    => $fullField,
            'origin'       => $origin,
            'class'        => $dataclass,
            'type'         => $type,
            'multi_valued' => isset($fieldOptions['multi_valued']) ? true : false,
        ];

        return $found;
    }
}


1		<?php
2
3		namespace Firesphere\SolrSearch\Helpers;
4
5		use Exception;
6		use Firesphere\SolrSearch\Traits\GetSetSearchResolverTrait;
7		use ReflectionException;
8		use SilverStripe\Core\ClassInfo;
9		use SilverStripe\ORM\DataObject;
10		use SilverStripe\ORM\DataObjectSchema;
11
12		/**
13		* Class FieldResolver
14		* Some additional introspection tools that are used often by the fulltext search code
15		*
16		* @package Firesphere\SolrSearch\Helpers
17		*/
18		class FieldResolver
19		{
20		use GetSetSearchResolverTrait;
21		/**
22		* @var array Class Ancestry
23		*/
24		protected static $ancestry = [];
25		/**
26		* @var array Class Hierarchy, could be replaced with Ancestry
27		*/
28		protected static $hierarchy = [];
29
30		/**
31		* Check if class is subclass of (a) the class in $instanceOf, or (b) any of the classes in the array $instanceOf
32		*
33		* @param string $class Name of the class to test
34		* @param array\|string $instanceOf Class ancestry it should be in
35		* @return bool
36		* @todo remove in favour of DataObjectSchema
37		* @static
38		*/
39	1	public static function isSubclassOf($class, $instanceOf): bool
40		{
41	1	$ancestry = self::$ancestry[$class] ?? self::$ancestry[$class] = ClassInfo::ancestry($class);
42
43	1	return is_array($instanceOf) ?
44	1	(bool)array_intersect($instanceOf, $ancestry) :
45	1	array_key_exists($instanceOf, $ancestry);
46		}
47
48		/**
49		* Resolve a field ancestry
50		*
51		* @param $field
52		* @return array
53		* @throws Exception
54		*
55		*/
56	36	public function resolveField($field)
57		{
58	36	$fullfield = str_replace('.', '_', $field);
59
60	36	$buildSources = $this->getBuildSources();
61
62	36	$found = [];
63
64	36	if (strpos($field, '.') !== false) {
65	36	$lookups = explode('.', $field);
66	36	$field = array_pop($lookups);
67
68	36	foreach ($lookups as $lookup) {
69	36	$buildSources = $this->getNext($buildSources, $lookup);
70		}
71		}
72
73	36	$found = $this->getFieldOptions($field, $buildSources, $fullfield, $found);
74
75	36	return $found;
76		}
77
78		/**
79		* Get the sources to build in to a Solr field
80		*
81		* @return array
82		*/
83	36	protected function getBuildSources(): array
84		{
85	36	$sources = $this->index->getClasses();
86	36	$buildSources = [];
87
88	36	$schemaHelper = DataObject::getSchema();
89	36	foreach ($sources as $source) {
90	36	$buildSources[$source]['base'] = $schemaHelper->baseDataClass($source);
91		}
92
93	36	return $buildSources;
94		}
95
96		/**
97		* Get the next lookup item from the buildSources
98		*
99		* @param array $buildSources
100		* @param $lookup
101		* @return array
102		* @throws Exception
103		*/
104	36	protected function getNext(array $buildSources, $lookup): array
105		{
106	36	$next = [];
107
108		// @todo remove repetition
109	36	foreach ($buildSources as $source => $baseOptions) {
110	36	$next = $this->resolveRelation($source, $lookup, $next);
111		}
112
113	36	$buildSources = $next;
114
115	36	return $buildSources;
116		}
117
118		/**
119		* Resolve relations if possible
120		*
121		* @param string $source
122		* @param $lookup
123		* @param array $next
124		* @return array
125		* @throws Exception
126		*/
127	36	protected function resolveRelation($source, $lookup, array $next): array
128		{
129	36	$source = $this->getSourceName($source);
130
131	36	foreach (self::getHierarchy($source) as $dataClass) {
132	36	$schema = DataObject::getSchema();
133	36	$options = ['multi_valued' => false];
134
135	36	$class = $this->getRelationData($lookup, $schema, $dataClass, $options);
136
137	36	list($options, $next) = $this->getNextOption($next, $class, $options, $dataClass);
138		}
139
140	36	return $next;
141		}
142
143		/**
144		* This is used to clean the source name from suffix
145		* suffixes are needed to support multiple relations with the same name on different page types
146		*
147		* @param string $source
148		* @return string
149		*/
150	36	private function getSourceName($source)
151		{
152	36	$explodedSource = explode('\|xkcd\|', $source);
153
154	36	return $explodedSource[0];
155		}
156
157		/**
158		* Get all the classes involved in a DataObject hierarchy - both super and optionally subclasses
159		*
160		* @static
161		* @param string $class - The class to query
162		* @param bool $includeSubclasses - True to return subclasses as well as super classes
163		* @param bool $dataOnly - True to only return classes that have tables
164		* @return array - Integer keys, String values as classes sorted by depth (most super first)
165		* @throws ReflectionException
166		*/
167	78	public static function getHierarchy($class, $includeSubclasses = true, $dataOnly = false): array
168		{
169		// Generate the unique key for this class and it's call type
170		// It's a short-lived cache key for the duration of the request
171	78	$cacheKey = sprintf('%s-%s-%s', $class, $includeSubclasses ? 'sc' : 'an', $dataOnly ? 'do' : 'al');
172
173	78	if (!isset(self::$hierarchy[$cacheKey])) {
174	5	$classes = self::getHierarchyClasses($class, $includeSubclasses);
175
176	5	if ($dataOnly) {
177	1	$classes = array_filter($classes, static function ($class) {
178	1	return DataObject::getSchema()->classHasTable($class);
179	1	});
180		}
181
182	5	self::$hierarchy[$cacheKey] = array_values($classes);
183
184	5	return array_values($classes);
185		}
186
187	78	return self::$hierarchy[$cacheKey];
188		}
189
190		/**
191		* Get the hierarchy for a class
192		*
193		* @param $class
194		* @param $includeSubclasses
195		* @return array
196		* @throws ReflectionException
197		* @todo clean this up to be more compatible with PHP features
198		*/
199	5	protected static function getHierarchyClasses($class, $includeSubclasses): array
200		{
201	5	$classes = array_values(ClassInfo::ancestry($class));
202	5	$classes = self::getSubClasses($class, $includeSubclasses, $classes);
203
204	5	$classes = array_unique($classes);
205	5	$classes = self::excludeDataObjectIDx($classes);
206
207	5	return $classes;
208		}
209
210		/**
211		* Get the subclasses for the given class
212		* Should be replaced with PHP native methods
213		*
214		* @param $class
215		* @param $includeSubclasses
216		* @param array $classes
217		* @return array
218		* @throws ReflectionException
219		*/
220	5	private static function getSubClasses($class, $includeSubclasses, array $classes): array
221		{
222	5	if ($includeSubclasses) {
223	4	$subClasses = ClassInfo::subclassesFor($class);
224	4	$classes = array_merge($classes, array_values($subClasses));
225		}
226
227	5	return $classes;
228		}
229
230		/**
231		* Objects to exclude from the index
232		*
233		* @param array $classes
234		* @return array
235		*/
236	5	private static function excludeDataObjectIDx(array $classes): array
237		{
238		// Remove all classes below DataObject from the list
239	5	$idx = array_search(DataObject::class, $classes, true);
240	5	if ($idx !== false) {
241	5	array_splice($classes, 0, $idx + 1);
242		}
243
244	5	return $classes;
245		}
246
247		/**
248		* Relational data
249		*
250		* @param $lookup
251		* @param DataObjectSchema $schema
252		* @param $className
253		* @param array $options
254		* @return string\|array\|null
255		* @throws Exception
256		*/
257	36	protected function getRelationData($lookup, DataObjectSchema $schema, $className, array &$options)
258		{
259	36	if ($hasOne = $schema->hasOneComponent($className, $lookup)) {
260	36	return $hasOne;
261		}
262	36	$options['multi_valued'] = true;
263	36	if ($hasMany = $schema->hasManyComponent($className, $lookup)) {
264	36	return $hasMany;
265		}
266	36	if ($key = $schema->manyManyComponent($className, $lookup)) {
267		return $key['childClass'];
268		}
269
270	36	return null;
271		}
272
273		/**
274		* @param array $next
275		* @param array\|string $class
276		* @param array $options
277		* @param string $dataClass
278		* @return array
279		*/
280	36	protected function getNextOption(array $next, $class, array $options, $dataClass): array
281		{
282	36	if (is_string($class) && $class) {
283	36	if (!isset($options['origin'])) {
284	36	$options['origin'] = $dataClass;
285		}
286
287		// we add suffix here to prevent the relation to be overwritten by other instances
288		// all sources lookups must clean the source name before reading it via getSourceName()
289	36	$next[$class . '\|xkcd\|' . $dataClass] = $options;
290		}
291
292	36	return [$options, $next];
293		}
294
295		/**
296		* Create field options for the given index field
297		*
298		* @param $field
299		* @param array $sources
300		* @param string $fullfield
301		* @param array $found
302		* @return array
303		* @throws ReflectionException
304		*/
305	36	protected function getFieldOptions($field, array $sources, $fullfield, array $found): array
306		{
307	36	foreach ($sources as $class => $fieldOptions) {
308	36	$class = $this->getSourceName($class);
309	36	$dataclasses = self::getHierarchy($class);
310
311	36	$fields = DataObject::getSchema()->databaseFields($class);
312	36	while ($dataclass = array_shift($dataclasses)) {
313	36	$type = $this->getType($fields, $field, $dataclass);
314
315	36	if ($type) {
316		// Don't search through child classes of a class we matched on.
317	36	$dataclasses = array_diff($dataclasses, array_values(ClassInfo::subclassesFor($dataclass)));
318		// Trim arguments off the type string
319	36	if (preg_match('/^(\w+)\(/', $type, $match)) {
320	36	$type = $match[1];
321		}
322
323	36	$found = $this->getFoundOriginData($field, $fullfield, $fieldOptions, $dataclass, $type, $found);
324		}
325		}
326		}
327
328	36	return $found;
329		}
330
331		/**
332		* Get the type of this field
333		*
334		* @param array $fields
335		* @param string $field
336		* @param string $dataclass
337		* @return string
338		*/
339	36	protected function getType($fields, $field, $dataclass): string
340		{
341	36	if (!empty($fields[$field])) {
342	36	return $fields[$field];
343		}
344
345		/** @var DataObject $singleton */
346	35	$singleton = singleton($dataclass);
347
348	35	$type = $singleton->castingClass($field);
349
350	35	if (!$type) {
351		// @todo should this be null?
352		$type = 'String';
353		}
354
355	35	return $type;
356		}
357
358		/**
359		* FoundOriginData is a helper to make sure the options are properly set.
360		*
361		* @param string $field
362		* @param string $fullField
363		* @param array $fieldOptions
364		* @param string $dataclass
365		* @param string $type
366		* @param array $found
367		* @return array
368		*/
369	36	private function getFoundOriginData(
370		$field,
371		$fullField,
372		$fieldOptions,
373		$dataclass,
374		$type,
375		$found
376		): array {
377		// Get the origin
378	36	$origin = $fieldOptions['origin'] ?? $dataclass;
379
380	36	$found["{$origin}_{$fullField}"] = [
381	36	'name' => "{$origin}_{$fullField}",
382	36	'field' => $field,
383	36	'fullfield' => $fullField,
384	36	'origin' => $origin,
385	36	'class' => $dataclass,
386	36	'type' => $type,
387	36	'multi_valued' => isset($fieldOptions['multi_valued']) ? true : false,
388		];
389
390	36	return $found;
391		}
392		}
393

Firesphere / silverstripe-solr-search

Push — hans/bufferadd ( dd4951...8221cf )

FieldResolver::getSourceName() A

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