Completed
Push — dev ( 0cdcb9...38ee71 )
by James Ekow Abaka
51:59 queued 50:30
created

RecordWrapper::retrieveItem()   A

Complexity

Conditions 4
Paths 4

Size

Total Lines 13

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 4.0312

Importance

Changes 0
Metric Value
dl 0
loc 13
ccs 7
cts 8
cp 0.875
rs 9.8333
c 0
b 0
f 0
cc 4
nc 4
nop 1
crap 4.0312
1
<?php
2
3
/*
4
 * The MIT License
5
 *
6
 * Copyright 2014-2018 James Ekow Abaka Ainooson
7
 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
26
27
namespace ntentan\nibii;
28
29
use ntentan\nibii\exceptions\NibiiException;
30
use ntentan\utils\Text;
31
32
/**
33
 * An active record wrapper for database records.
34
 */
35
class RecordWrapper implements \ArrayAccess, \Countable, \Iterator
36
{
37
    /**
38
     * An associative array of models to which this model has a one to may relationship.
39
     *
40
     * @var array
41
     */
42
    protected $hasMany = [];
43
44
    /**
45
     * An associative array of models which have a one-to-many relationship with this model.
46
     *
47
     * @var array
48
     */
49
    protected $belongsTo = [];
50
51
    /**
52
     * An associative array of models with which this model has a many to many relationship.
53
     *
54
     * @var array
55
     */
56
    protected $manyHaveMany = [];
57
58
    /**
59
     * The name of the database table.
60
     *
61
     * @var string
62
     */
63
    protected $table;
64
65
    /**
66
     * The name of the schema to which this table belongs.
67
     *
68
     * @var string
69
     */
70
    protected $schema;
71
72
    /**
73
     * Temporary data held in the model object.
74
     *
75
     * @var array
76
     */
77
    protected $modelData = [];
78
79
    /**
80
     * A quoted string of the table name used for building queries.
81
     *
82
     * @var string
83
     */
84
    private $quotedTable;
85
86
    /**
87
     * The raw table name without any quotes.
88
     *
89
     * @var string
90
     */
91
    private $unquotedTable;
92
93
    /**
94
     * An array of fields that contain validation errors after an attempted save.
95
     *
96
     * @var array
97
     */
98
    private $invalidFields;
99
100
    /**
101
     * An instance of the operations dispatcher.
102
     *
103
     * @var Operations
104
     */
105
    private $dynamicOperations;
106
107
    /**
108
     * Location of the RecordWrapper's internal iterator.
109
     *
110
     * @var int
111
     */
112
    private $index = 0;
113
114
    /**
115
     * This flag is set whenever data is manually put in the model with the setData method.
116
     *
117
     * @var bool
118
     */
119
    private $dataSet = false;
120
121
    /**
122
     * The name of the class for this model obtained through reflection.
123
     *
124
     * @var string
125
     */
126
    private $className;
127
128
    /**
129
     * An instance of the driver adapter for interacting with the database.
130
     *
131
     * @var DriverAdapter
132
     */
133
    private $adapter;
134
135
    /**
136
     * An instance of the ORMContext through which this model is operating.
137
     *
138
     * @var ORMContext
139
     */
140
    private $context;
141
142
    /**
143
     * Keys for the various fields when model is accessed as an associative array.
144
     *
145
     * @var array
146
     */
147
    private $keys = [];
148
149
    /**
150
     * This flag is set after the model has been properly initialized.
151
     * Useful after model is unserialized or accessed through the static interface.
152
     *
153
     * @var bool
154
     */
155
    private $initialized = false;
156
157
    /**
158
     * Initialize the record wrapper and setup the adapters, drivers, tables and schemas.
159
     * After initialization, this method sets the initialized flag.
160
     *
161
     * @return void
162
     */
163 36
    protected function initialize(): void
164
    {
165 36
        if ($this->initialized) {
166 36
            return;
167
        }
168 36
        $this->context = ORMContext::getInstance();
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169 36
        $this->adapter = $this->context->getDriverAdapter();
170 36
        $table = $this->table ?? $this->context->getModelTable($this);
171 36
        $driver = $this->context->getDbContext()->getDriver();
172 36
        $this->adapter->setContext($this->context);
173 36
        $this->className = (new \ReflectionClass($this))->getName();
174 36
        if (is_string($table)) {
175 36
            $this->table = $this->unquotedTable = $table;
176
        } else {
177
            $this->table = $table['table'];
178
            $this->schema = $table['schema'];
179
        }
180 36
        $this->quotedTable = ($this->schema ? "{$driver->quoteIdentifier($this->schema)}." : '').$driver->quoteIdentifier($this->table);
181 36
        $this->unquotedTable = ($this->schema ? "{$this->schema}." : '').$this->table;
182 36
        $this->adapter->setModel($this, $this->quotedTable);
183 36
        $this->initialized = true;
184 36
    }
185
186
    public function __debugInfo()
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187
    {
188
        $data = $this->getData();
189
190
        return $this->hasMultipleItems() ? $data : isset($data[0]) ? $data[0] : [];
191
    }
192
193
    /**
194
     * Return a description of the model wrapped by this wrapper.
195
     *
196
     * @return ModelDescription
197
     */
198 28
    public function getDescription() : ModelDescription
199
    {
200 28
        $this->initialize();
201
202 28
        return $this->context->getCache()->read(
203
            "{$this->className}::desc", function () {
204 28
                return $this->context->getModelDescription($this);
205 28
            }
206
        );
207
    }
208
209
    /**
210
     * Return the number of items stored in the model or matched by the query.
211
     * Depending on the state of the model, the count method will return different values. For models that have data
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     * values set with calls to setData, this method returns the number of records that were added. On the other hand,
213
     * for models that do not have data set, this method queries the database to find out the number of records that
214
     * are either in the model, or for models that have been filtered, the number of records that match the filter.
215
     *
216
     * @param int|array|QueryParameters $query
217
     *
218
     * @return int
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219
     */
220 8
    public function count($query = null)
221
    {
222 8
        if ($this->dataSet) {
223 8
            return count($this->getData());
224
        }
225
226
        return $this->__call('count', [$query]);
227
    }
228
229
    /**
230
     * Retrieve an item stored in the record.
231
     * This method returns items that are directly stored in the model, or lazy loads related items if needed.
232
     * The key could be a field in the model's table or the name of a related model.
233
     *
234
     * @param string $key A key identifying the item to be retrieved.
235
     *
236
     * @return mixed
237
     */
238 12
    private function retrieveItem($key)
239
    {
240 12
        if ($this->hasMultipleItems()) {
241
            throw new NibiiException('Current model object state contains multiple items. Please index with a numeric key to select a specific item first.');
242
        }
243 12
        $relationships = $this->getDescription()->getRelationships();
244 12
        $decamelizedKey = Text::deCamelize($key);
245 12
        if (isset($relationships[$key])) {
246 8
            return $this->fetchRelatedFields($relationships[$key]);
247
        }
248
249 4
        return isset($this->modelData[$decamelizedKey]) ? $this->modelData[$decamelizedKey] : null;
250
    }
251
252
    /**
253
     * Calls dynamic methods.
254
     *
255
     * @param string $name
256
     * @param array  $arguments
257
     *
258
     * @throws exceptions\NibiiException
259
     *
260
     * @return type
261
     */
262 34
    public function __call($name, $arguments)
263
    {
264 34
        $this->initialize();
265 34
        if ($this->dynamicOperations === null) {
266 34
            $this->dynamicOperations = new Operations($this, $this->quotedTable);
267
        }
268
269 34
        return $this->dynamicOperations->perform($name, $arguments);
270
    }
271
272
    /**
273
     * Set a value for a field in the model.
274
     *
275
     * @param string $name
276
     * @param mixed  $value
277
     */
278 8
    public function __set($name, $value)
279
    {
280 8
        $this->dataSet = true;
281 8
        $this->modelData[Text::deCamelize($name)] = $value;
282 8
    }
283
284 12
    public function __get($name)
285
    {
286 12
        return $this->retrieveItem($name);
287
    }
288
289 10
    public function save()
290
    {
291 10
        $return = $this->__call('save', [$this->hasMultipleItems()]);
292 10
        $this->invalidFields = $this->dynamicOperations->getInvalidFields();
293
294 10
        return $return;
295
    }
296
297 26
    private function hasMultipleItems()
298
    {
299 26
        if (count($this->modelData) > 0) {
300 24
            return is_numeric(array_keys($this->modelData)[0]);
301
        } else {
302 2
            return false;
303
        }
304
    }
305
306 18
    public function getData()
307
    {
308 18
        $data = [];
309
310 18
        if (count($this->modelData) == 0) {
311 2
            $data = $this->modelData;
312 16
        } elseif ($this->hasMultipleItems()) {
313 6
            $data = $this->modelData;
314 12
        } elseif (count($this->modelData) > 0) {
315 12
            $data[] = $this->modelData;
316
        }
317
318 18
        return $data;
319
    }
320
321 26
    public function setData($data)
322
    {
323 26
        $this->dataSet = is_array($data) ? true : false;
324 26
        $this->modelData = $data;
325 26
    }
326
327
    public function mergeData($data)
328
    {
329
        foreach ($data as $key => $value) {
330
            $this->modelData[$key] = $value;
331
        }
332
        $this->dataSet = true;
333
    }
334
335 2
    public function offsetExists($offset)
336
    {
337 2
        return isset($this->modelData[$offset]);
338
    }
339
340 2
    public function offsetGet($offset)
341
    {
342 2
        if (is_numeric($offset)) {
343 2
            return $this->wrap($offset);
344
        } else {
345 2
            return $this->retrieveItem($offset);
346
        }
347
    }
348
349 2
    public function offsetSet($offset, $value)
350
    {
351 2
        $this->dataSet = true;
352 2
        $this->modelData[$offset] = $value;
353 2
    }
354
355
    public function offsetUnset($offset)
356
    {
357
        unset($this->modelData[$offset]);
358
    }
359
360 6
    private function wrap($offset)
361
    {
362 6
        $this->initialize();
363 6
        if (isset($this->modelData[$offset])) {
364 6
            $className = $this->className;
365 6
            $newInstance = new $className();
366 6
            $newInstance->initialize();
367 6
            $newInstance->setData($this->modelData[$offset]);
368
369 6
            return $newInstance;
370
        } else {
371
            return;
372
        }
373
    }
374
375 4
    public function getInvalidFields()
376
    {
377 4
        return $this->invalidFields;
378
    }
379
380
    public function getHasMany()
381
    {
382
        return $this->hasMany;
383
    }
384
385
    public function getBelongsTo()
386
    {
387
        return $this->belongsTo;
388
    }
389
390 4
    public function current()
391
    {
392 4
        return $this->wrap($this->keys[$this->index]);
393
    }
394
395
    public function key()
396
    {
397
        return $this->keys[$this->index];
398
    }
399
400 4
    public function next()
401
    {
402 4
        $this->index++;
403 4
    }
404
405 4
    public function rewind()
406
    {
407 4
        $this->keys = array_keys($this->modelData);
408 4
        $this->index = 0;
409 4
    }
410
411 4
    public function valid()
412
    {
413 4
        return isset($this->keys[$this->index]) && isset($this->modelData[$this->keys[$this->index]]);
414
    }
415
416
    /**
417
     * A custom validator for the record wrapper.
418
     *
419
     * @return mixed
420
     */
421 10
    public function validate()
422
    {
423 10
        return [];
424
    }
425
426 12
    private function fetchRelatedFields($relationship, $index = null)
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427
    {
428 12
        if ($index === null) {
429 12
            $data = $this->modelData;
430
        } else {
431
            $data = $this->modelData[$index];
432
        }
433 12
        $model = $relationship->getModelInstance();
434 12
        if (empty($data)) {
435
            return $model;
436
        }
437 12
        $query = $relationship->prepareQuery($data);
438
439 12
        return $query ? $model->fetch($query) : $model;
440
    }
441
442 28
    public function getRelationships()
443
    {
444
        return [
445 28
            'HasMany'      => $this->hasMany,
446 28
            'BelongsTo'    => $this->belongsTo,
447 28
            'ManyHaveMany' => $this->manyHaveMany,
448
        ];
449
    }
450
451
    public function usetField($field)
452
    {
453
        unset($this->modelData[$field]);
454
    }
455
456
    /**
457
     * Callback for when a record is either added or modified.
458
     */
459 10
    public function preSaveCallback()
460
    {
461 10
    }
462
463
    /**
464
     * Callback for when a record has been added or modified.
465
     *
466
     * @param $id
467
     */
468 6
    public function postSaveCallback()
469
    {
470 6
    }
471
472
    /**
473
     * Callback for when a new record is about to be created.
474
     */
475 8
    public function preCreateCallback()
476
    {
477 8
    }
478
479
    /**
480
     * Callback for when a new record has been created.
481
     * This callback can be most useful for obtaining the primary key of a newly created record.
482
     *
483
     * @param $id
484
     */
485 4
    public function postCreateCallback($id)
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486
    {
487 4
    }
488
489
    /**
490
     * Callback for when a record is about to be updated.
491
     */
492 2
    public function preUpdateCallback()
493
    {
494 2
    }
495
496
    /**
497
     * Callback for when a record has been updated.
498
     */
499 2
    public function postUpdateCallback()
500
    {
501 2
    }
502
503 36
    public function getDBStoreInformation()
504
    {
505 36
        $this->initialize();
506
507
        return [
508 36
            'schema'         => $this->schema,
509 36
            'table'          => $this->table,
510 36
            'quoted_table'   => $this->quotedTable,
511 36
            'unquoted_table' => $this->unquotedTable,
512
        ];
513
    }
514
515
    /**
516
     * @return DriverAdapter
517
     */
518 36
    public function getAdapter()
519
    {
520 36
        $this->initialize();
521
522 36
        return $this->adapter;
523
    }
524
525 4
    private function expandArrayValue($array, $relationships, $depth, $expandableModels = [], $index = null)
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526
    {
527 4
        if (empty($expandableModels)) {
528 4
            foreach ($relationships as $name => $relationship) {
529 4
                $array[$name] = $this->fetchRelatedFields($relationship, $index)->toArray($depth);
530
            }
531
        } else {
532
            foreach ($expandableModels as $name) {
533
                $array[$name] = $this->fetchRelatedFields($relationships[$name], $index)->toArray($depth, $expandableModels);
534
            }
535
        }
536
537 4
        return $array;
538
    }
539
540 24
    public function toArray($depth = 0, $expandableModels = [])
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541
    {
542 24
        $relationships = $this->getDescription()->getRelationships();
543 24
        $array = $this->modelData;
544 24
        if ($depth > 0) {
545 4
            if ($this->hasMultipleItems()) {
546
                foreach ($array as $i => $value) {
547
                    $array[$i] = $this->expandArrayValue($value, $relationships, $depth - 1, $expandableModels, $i);
548
                }
549
            } else {
550 4
                $array = $this->expandArrayValue($array, $relationships, $depth - 1, $expandableModels);
551
            }
552
        }
553
554 24
        return $array;
555
    }
556
}
557