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Push — master ( 3657f2...b17fdb )
by Andreas
24:28 queued 05:07
created

midcom_helper_reflector::get_class_label()   A

Complexity

Conditions 5
Paths 10

Size

Total Lines 32
Code Lines 18

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 19
CRAP Score 5

Importance

Changes 0
Metric Value
cc 5
eloc 18
nc 10
nop 0
dl 0
loc 32
ccs 19
cts 19
cp 1
crap 5
rs 9.3554
c 0
b 0
f 0
1
<?php
2
/**
3
 * @package midcom.helper.reflector
4
 * @author The Midgard Project, http://www.midgard-project.org
5
 * @copyright The Midgard Project, http://www.midgard-project.org
6
 * @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
7
 */
8
9
use midgard\portable\storage\connection;
10
use midgard\portable\api\mgdobject;
11
12
/**
13
 * The Grand Unified Reflector
14
 *
15
 * @package midcom.helper.reflector
16
 */
17
class midcom_helper_reflector extends midcom_baseclasses_components_purecode
18
{
19
    public $mgdschema_class = '';
20
21
    /**
22
     * @var midgard_reflection_property
23
     */
24
    protected $_mgd_reflector;
25
26
    protected $_dummy_object;
27
28
    private static $_cache = [
29
        'l10n' => [],
30
        'instance' => [],
31
        'title' => [],
32
        'name' => [],
33
        'fieldnames' => [],
34
        'object_icon_map' => null,
35
        'create_type_map' => null
36
    ];
37
38
    /**
39
     * Constructor, takes classname or object, resolved MgdSchema root class automagically
40
     *
41
     * @param string|mgdobject $src classname or object
42
     */
43 191
    public function __construct($src)
44
    {
45 191
        parent::__construct();
46
47
        // Resolve root class name
48 191
        $this->mgdschema_class = self::resolve_baseclass($src);
49
        // Could not resolve root class name
50 191
        if (empty($this->mgdschema_class)) {
51
            // Handle object vs string
52
            $original_class = (is_object($src)) ? get_class($src) : $src;
53
            throw new midcom_error("Could not determine MgdSchema baseclass for '{$original_class}'");
54
        }
55
56
        // Instantiate midgard reflector
57 191
        $this->_mgd_reflector = new midgard_reflection_property($this->mgdschema_class);
58
59
        // Instantiate dummy object
60 191
        $this->_dummy_object = new $this->mgdschema_class;
61 191
    }
62
63
    /**
64
     * Get cached reflector instance
65
     *
66
     * @param mixed $src Object or classname
67
     * @return static
68
     */
69 395
    public static function &get($src)
70
    {
71 395
        $identifier = get_called_class() . (is_object($src) ? get_class($src) : $src);
72
73 395
        if (!isset(self::$_cache['instance'][$identifier])) {
74 36
            self::$_cache['instance'][$identifier] = new static($src);
75
        }
76 395
        return self::$_cache['instance'][$identifier];
77
    }
78
79
    /**
80
     * Get object's (mgdschema) fieldnames.
81
     *
82
     * @param object $object Object The object to query
83
     */
84 111
    public static function get_object_fieldnames(object $object) : array
85
    {
86 111
        $classname = get_class($object);
87 111
        $metadata = false;
88
89 111
        if (midcom::get()->dbclassloader->is_midcom_db_object($object)) {
90 101
            $classname = $object->__mgdschema_class_name__;
91 88
        } elseif ($object instanceof midcom_helper_metadata) {
92 78
            $metadata = true;
93 78
            $classname = $object->object->__mgdschema_class_name__;
94
        }
95
96 111
        if (is_subclass_of($classname, mgdobject::class)) {
97 111
            $cm = connection::get_em()->getClassMetadata($classname);
98 111
            return $cm->get_schema_properties($metadata);
0 ignored issues
show
introduced by
The method get_schema_properties() does not exist on Doctrine\ORM\Mapping\ClassMetadata. Are you sure you never get this type here, but always one of the subclasses? ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-call  annotation

98
            return $cm->/** @scrutinizer ignore-call */ get_schema_properties($metadata);
Loading history...
99
        }
100 5
        return array_keys(get_object_vars($object));
101
    }
102
103 150
    public function property_exists(string $property, bool $metadata = false) : bool
104
    {
105 150
        return $this->_mgd_reflector->property_exists($property, $metadata);
106
    }
107
108
    /**
109
     * Gets a midcom_helper_l10n instance for component governing the type
110
     */
111 67
    public function get_component_l10n() : midcom_services_i18n_l10n
112
    {
113 67
        if (!isset(self::$_cache['l10n'][$this->mgdschema_class])) {
114 11
            if ($component = midcom::get()->dbclassloader->get_component_for_class($this->mgdschema_class)) {
0 ignored issues
show
Bug introduced by
It seems like $this->mgdschema_class can also be of type null; however, parameter $classname of midcom_services_dbclassl...t_component_for_class() does only seem to accept string, maybe add an additional type check? ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-type  annotation

114
            if ($component = midcom::get()->dbclassloader->get_component_for_class(/** @scrutinizer ignore-type */ $this->mgdschema_class)) {
Loading history...
115 10
                self::$_cache['l10n'][$this->mgdschema_class] = $this->_i18n->get_l10n($component);
116
            } else {
117 1
                debug_add("Could not resolve component for class {$this->mgdschema_class}, using our own l10n", MIDCOM_LOG_INFO);
118 1
                self::$_cache['l10n'][$this->mgdschema_class] = $this->_l10n;
119
            }
120
        }
121
122 67
        return self::$_cache['l10n'][$this->mgdschema_class];
123
    }
124
125
    /**
126
     * Get the localized label of the class
127
     *
128
     * @todo remove any hardcoded class names/prefixes
129
     */
130 67
    public function get_class_label() : string
131
    {
132 67
        $component_l10n = $this->get_component_l10n();
133 67
        $use_classname = $this->mgdschema_class;
134
135 67
        $midcom_dba_classname = midcom::get()->dbclassloader->get_midcom_class_name_for_mgdschema_object($use_classname);
136
137 67
        if (!empty($midcom_dba_classname)) {
138 67
            $use_classname = $midcom_dba_classname;
139
        }
140
141 67
        $use_classname = preg_replace('/_(db|dba)$/', '', $use_classname);
142
143 67
        $label = $component_l10n->get($use_classname);
144 67
        if ($label == $use_classname) {
145
            // Class string not localized, try Bergie's way to pretty-print
146 67
            $classname_parts = explode('_', $use_classname);
147 67
            if (count($classname_parts) >= 3) {
148
                // Drop first two parts of class name
149 67
                array_shift($classname_parts);
150 67
                array_shift($classname_parts);
151
            }
152
            // FIXME: Remove hardcoded class prefixes
153 67
            $use_label = preg_replace('/(openpsa|notifications)_/', '', implode('_', $classname_parts));
154
155 67
            $use_label = str_replace('_', ' ', $use_label);
156 67
            $label = $component_l10n->get($use_label);
157 67
            if ($use_label == $label) {
158 62
                $label = ucwords($use_label);
159
            }
160
        }
161 67
        return $label;
162
    }
163
164
    /**
165
     * Get property name to use as label
166
     */
167 23
    public function get_label_property() : string
168
    {
169 23
        $midcom_class = midcom::get()->dbclassloader->get_midcom_class_name_for_mgdschema_object($this->mgdschema_class);
170 23
        $obj = ($midcom_class) ? new $midcom_class : new $this->mgdschema_class;
171
172 23
        if (method_exists($obj, 'get_label_property')) {
173 3
            return $obj->get_label_property();
174
        }
175 20
        return $this->get_property('title', $obj) ??
176 4
            $this->get_property('name', $obj) ??
177 20
            'guid';
178
    }
179
180
    /**
181
     * Get the object label property value
182
     */
183 55
    public function get_object_label(object $object) : ?string
184
    {
185 55
        if ($object instanceof mgdobject) {
186
            try {
187 2
                $obj = midcom::get()->dbfactory->convert_midgard_to_midcom($object);
188
            } catch (midcom_error $e) {
189 2
                return null;
190
            }
191
        } else {
192 53
            $obj = $object;
193
        }
194 55
        if (method_exists($obj, 'get_label')) {
195 43
            return $obj->get_label();
196
        }
197
198 14
        $properties = array_flip($obj->get_properties());
199 14
        if (empty($properties)) {
200
            debug_add("Could not list object properties, aborting", MIDCOM_LOG_ERROR);
201
            return null;
202
        }
203 14
        if (isset($properties['title'])) {
204 12
            return $obj->title;
205
        }
206 3
        if (isset($properties['name'])) {
207 2
            return $obj->name;
208
        }
209 1
        if ($obj->id > 0) {
210
            return $this->get_class_label() . ' #' . $obj->id;
211
        }
212 1
        return '';
213
    }
214
215
    /**
216
     * Get the name of the create icon image
217
     */
218 28
    public static function get_create_icon(string $type) : string
219
    {
220 28
        if (is_callable([$type, 'get_create_icon'])) {
221
            // class has static method to tell us the answer ? great !
222
            return $type::get_create_icon();
223
        }
224 28
        return self::get_icon($type, 'create_type');
225
    }
226
227
    /**
228
     * heuristics magic (instead of adding something here, take a look at
229
     * config keys "create_type_magic" and "object_icon_magic")
230
     */
231 36
    private static function get_icon(string $object_class, string $mode) : string
232
    {
233 36
        $object_baseclass = self::resolve_baseclass($object_class);
234 36
        if (null === self::$_cache[$mode . '_map']) {
235 2
            self::$_cache[$mode . '_map'] = self::_get_icon_map($mode . '_magic', $mode === 'create_type' ? 'file-o' : 'file');
236
        }
237 36
        $map = self::$_cache[$mode . '_map'];
238
239
        switch (true) {
240 36
            case (isset($map[$object_class])):
241 18
                return $map[$object_class];
242
243 32
            case (isset($map[$object_baseclass])):
244 2
                return $map[$object_baseclass];
245
246 32
            case (str_contains($object_class, 'person')):
247 4
                return $mode === 'create_type' ? 'user-o' : 'user';
248
249 30
            case (str_contains($object_class, 'event')):
250 2
                return 'calendar-o';
251
252 28
            case (str_contains($object_class, 'member')):
253 28
            case (str_contains($object_class, 'organization')):
254 27
            case (str_contains($object_class, 'group')):
255 6
                return 'users';
256
257 26
            case (str_contains($object_class, 'element')):
258 1
                return 'file-code-o';
259
260
            default:
261 25
                return $map['__default__'];
262
        }
263
    }
264
265
    /**
266
     * Get the object icon
267
     */
268 12
    public static function get_object_icon(object $obj) : string
269
    {
270 12
        if (method_exists($obj, 'get_icon')) {
271
            // object knows it's icon, how handy!
272 4
            $icon = $obj->get_icon();
273
        } else {
274 9
            $icon = self::get_icon(get_class($obj), 'object_icon');
275
        }
276
277 12
        return '<i class="fa fa-' . $icon . '"></i>';
278
    }
279
280 2
    private static function _get_icon_map(string $config_key, string $fallback) : array
281
    {
282 2
        $config = midcom_baseclasses_components_configuration::get('midcom.helper.reflector', 'config');
283 2
        $icons2classes = $config->get($config_key);
284 2
        $icon_map = [];
285
        //sanity
286 2
        if (!is_array($icons2classes)) {
287
            throw new midcom_error('Config key "' . $config_key . '" is not an array');
288
        }
289 2
        foreach ($icons2classes as $icon => $classes) {
290 2
            $icon_map = array_merge($icon_map, array_fill_keys($classes, $icon));
291
        }
292 2
        if (!isset($icon_map['__default__'])) {
293
            $icon_map['__default__'] = $fallback;
294
        }
295 2
        return $icon_map;
296
    }
297
298
    /**
299
     * Get class properties to use as search fields in choosers or other direct DB searches
300
     */
301 15
    public function get_search_properties() : array
302
    {
303
        // Return cached results if we have them
304 15
        static $cache = [];
305 15
        if (isset($cache[$this->mgdschema_class])) {
306 9
            return $cache[$this->mgdschema_class];
307
        }
308 7
        debug_add("Starting analysis for class {$this->mgdschema_class}");
309
310 7
        $properties = self::get_object_fieldnames($this->_dummy_object);
311
312
        $default_properties = [
313 7
            'title' => true,
314
            'tag' => true,
315
            'firstname' => true,
316
            'lastname' => true,
317
            'official' => true,
318
            'username' => true,
319
        ];
320
321 7
        $search_properties = array_intersect_key($default_properties, array_flip($properties));
322
323 7
        foreach ($properties as $property) {
324 7
            if (str_contains($property, 'name')) {
325 6
                $search_properties[$property] = true;
326
            }
327
            // TODO: More per property heuristics
328
        }
329
        // TODO: parent and up heuristics
330
331 7
        $label_prop = $this->get_label_property();
332
333 7
        if (    $label_prop != 'guid'
334 7
             && $this->_mgd_reflector->property_exists($label_prop)) {
335 6
            $search_properties[$label_prop] = true;
336
        }
337
338
        // Exceptions - always search these fields
339 7
        $always_search_all = $this->_config->get('always_search_fields') ?: [];
340 7
        if (!empty($always_search_all[$this->mgdschema_class])) {
341 1
            $fields = array_intersect($always_search_all[$this->mgdschema_class], $properties);
342 1
            $search_properties += array_flip($fields);
343
        }
344
345
        // Exceptions - never search these fields
346 7
        $never_search_all = $this->_config->get('never_search_fields') ?: [];
347 7
        if (!empty($never_search_all[$this->mgdschema_class])) {
348
            $search_properties = array_diff_key($search_properties, array_flip($never_search_all[$this->mgdschema_class]));
349
        }
350
351 7
        $search_properties = array_keys($search_properties);
352 7
        debug_print_r("Search properties for {$this->mgdschema_class}: ", $search_properties);
353 7
        $cache[$this->mgdschema_class] = $search_properties;
354 7
        return $search_properties;
355
    }
356
357
    /**
358
     * Gets a list of link properties and the links target info
359
     *
360
     * Link info key specification
361
     *     'class' string link target class name
362
     *     'target' string link target property (of target class)
363
     *
364
     * @return array multidimensional array keyed by property, values are arrays with link info (or false in case of failure)
365
     */
366 4
    public function get_link_properties() : array
367
    {
368
        // Return cached results if we have them
369 4
        static $cache = [];
370 4
        if (isset($cache[$this->mgdschema_class])) {
371 1
            return $cache[$this->mgdschema_class];
372
        }
373 3
        debug_add("Starting analysis for class {$this->mgdschema_class}");
374
375
        // Shorthands
376 3
        $ref = $this->_mgd_reflector;
377 3
        $obj = $this->_dummy_object;
378
379
        // Get property list and start checking (or abort on error)
380 3
        $links = [];
381 3
        foreach (self::get_object_fieldnames($obj) as $property) {
382 3
            if ($property == 'guid') {
383
                // GUID, even though of type MGD_TYPE_GUID, is never a link
384 3
                continue;
385
            }
386
387 3
            if (   !$ref->is_link($property)
388 3
                && $ref->get_midgard_type($property) != MGD_TYPE_GUID) {
389 3
                continue;
390
            }
391 3
            debug_add("Processing property '{$property}'");
392
            $linkinfo = [
393 3
                'class' => $ref->get_link_name($property),
394 3
                'target' => $ref->get_link_target($property),
395 3
                'type' => $ref->get_midgard_type($property),
396
            ];
397
398 3
            if (!$linkinfo['target'] && $linkinfo['type'] == MGD_TYPE_GUID) {
399 1
                $linkinfo['target'] = 'guid';
400
            }
401
402 3
            $links[$property] = $linkinfo;
403
        }
404
405 3
        debug_print_r("Links for {$this->mgdschema_class}: ", $links);
406 3
        $cache[$this->mgdschema_class] = $links;
407 3
        return $links;
408
    }
409
410
    /**
411
     * Map extended classes
412
     *
413
     * For example org.openpsa.* components often expand core objects,
414
     * in config we specify which classes we wish to substitute with which
415
     *
416
     * @param string $schema_type classname to check rewriting for
417
     * @return string new classname (or original in case no rewriting is to be done)
418
     */
419 38
    public static function class_rewrite(string $schema_type) : string
420
    {
421 38
        static $extends = false;
422 38
        if ($extends === false) {
423
            $extends = midcom_baseclasses_components_configuration::get('midcom.helper.reflector', 'config')->get('class_extends');
424
            // Safety against misconfiguration
425
            if (!is_array($extends)) {
426
                throw new midcom_error("config->get('class_extends') did not return array, invalid configuration ??");
427
            }
428
        }
429 38
        if (   isset($extends[$schema_type])
430 38
            && class_exists($extends[$schema_type])) {
431 2
            return $extends[$schema_type];
432
        }
433 37
        return $schema_type;
434
    }
435
436
    /**
437
     * See if two MgdSchema classes are the same
438
     *
439
     * NOTE: also takes into account the various extended class scenarios
440
     *
441
     * @param string $class_one first class to compare
442
     * @param string $class_two second class to compare
443
     */
444 11
    public static function is_same_class($class_one, $class_two) : bool
445
    {
446 11
        $one = self::resolve_baseclass($class_one);
447 11
        $two = self::resolve_baseclass($class_two);
448 11
        return $one == $two;
449
    }
450
451
    /**
452
     * Get the MgdSchema classname for given class
453
     *
454
     * @param mixed $classname either string (class name) or object
455
     * @return string the base class name
456
     */
457 225
    public static function resolve_baseclass($classname) : ?string
458
    {
459 225
        static $cached = [];
460
461 225
        if (is_object($classname)) {
462 173
            $class_instance = $classname;
463 173
            $classname = get_class($classname);
464
        }
465
466 225
        if (empty($classname)) {
467
            return null;
468
        }
469
470 225
        if (isset($cached[$classname])) {
471 205
            return $cached[$classname];
472
        }
473
474 36
        if (!isset($class_instance)) {
475 10
            $class_instance = new $classname();
476
        }
477
478
        // Check for decorators first
479 36
        if (!empty($class_instance->__mgdschema_class_name__)) {
480 29
            $parent_class = $class_instance->__mgdschema_class_name__;
481
        } else {
482 7
            $parent_class = $classname;
483
        }
484
485 36
        $cached[$classname] = self::class_rewrite($parent_class);
486
487 36
        return $cached[$classname];
488
    }
489
490 389
    private function get_property(string $type, object $object) : ?string
491
    {
492
        // Cache results per class within request
493 389
        $key = get_class($object);
494 389
        if (array_key_exists($key, self::$_cache[$type])) {
495 374
            return self::$_cache[$type][$key];
496
        }
497 51
        self::$_cache[$type][$key] = null;
498
499
        // Configured properties
500 51
        $exceptions = $this->_config->get($type . '_exceptions');
501 51
        foreach ($exceptions as $class => $property) {
502 51
            if (midcom::get()->dbfactory->is_a($object, $class)) {
503 8
                if (   $property !== false
504 8
                    && !$this->_mgd_reflector->property_exists($property)) {
505
                    debug_add("Matched class '{$key}' to '{$class}' via is_a but property '{$property}' does not exist", MIDCOM_LOG_ERROR);
506
                } else {
507 8
                    self::$_cache[$type][$key] = $property;
508
                }
509 8
                return self::$_cache[$type][$key];
510
            }
511
        }
512
        // The simple heuristic
513 46
        if ($this->_mgd_reflector->property_exists($type)) {
514 21
            self::$_cache[$type][$key] = $type;
515
        }
516 46
        return self::$_cache[$type][$key];
517
    }
518
519
    /**
520
     * Resolve the "name" property of given object
521
     *
522
     * @param object $object the object to get the name property for
523
     */
524 304
    public static function get_name_property(object $object) : ?string
525
    {
526 304
        return self::get($object)->get_property('name', $object);
527
    }
528
529
    /**
530
     * Resolve the "title" of given object
531
     *
532
     * NOTE: This is distinctly different from get_object_label, which will always return something
533
     * even if it's just the class name and GUID, also it will for some classes include extra info (like datetimes)
534
     * which we do not want here.
535
     *
536
     * @param object $object the object to get the name property for
537
     */
538 184
    public static function get_object_title(object $object) : ?string
539
    {
540 184
        if ($title_property = self::get_title_property($object)) {
541 181
            return (string) $object->{$title_property};
542
        }
543
        // Could not resolve valid property
544 3
        return null;
545
    }
546
547
    /**
548
     * Resolve the "title" property of given object
549
     *
550
     * NOTE: This is distinctly different from get_label_property, which will always return something
551
     * even if it's just the guid
552
     *
553
     * @param object $object The object to get the title property for
554
     */
555 206
    public static function get_title_property(object $object) : ?string
556
    {
557 206
        return self::get($object)->get_property('title', $object);
558
    }
559
}
560