frosted-mysql-library /classes/mysql.collection.class.php

Language PHP Lines 744
MD5 Hash c52ef757dadefa28a4061df5f15a484d
Repository https://github.com/magedeveloper/frosted-mysql-library.git View Raw File
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
<?php
/**
 * MySQL Collection Class
 * - - - - - - - - - -
 * Collection to further handle or filter mysql results by mysqlClass.
 * - - - - - - - - - -
 * Licensed under MIT license
 * - - - - - - - - - -
 * @Creator  Daniel 'Eisbehr' Kern
 * @Require  PHP5
 * @Version  3.0
 * @Date     01.08.2013
 * @Update   01.08.2013
 * - - - - - - - - - -
 */
class mysqlClass_Collection implements IteratorAggregate, Countable, ArrayAccess
{	
	/**
	 * collection rows
	 * @var mysqlClass_CollectionItem array
	 */
	private $rows = array();

	/**
	 * active filters
	 * @var array
	 */
	private $filters = array();

	/**
	 * active filters
	 * @var boolean
	 */
	private $isFiltersLoaded = true;

	/**
	 * total records
	 * @var integer
	 */
	private $totalRecords = 0;

	/**
	 * logical operators
	 * @var string
	 */
	const LOGIC_EQ   = "eq";
	const LOGIC_SEQ  = "seq";
	const LOGIC_NEQ  = "neq";
	const LOGIC_SNEQ = "sneq";
	const LOGIC_LT   = "lt";
	const LOGIC_GT   = "gt";
	const LOGIC_LTE  = "lte";
	const LOGIC_GTE  = "gte";
	const LOGIC_LIKE = "like";
	const LOGIC_IN   = "in";



	/*
	** public
	*/



	/**
	 * destructor
	 */
	public function __destruct()
	{
		unset($this->rows);
		unset($this->filters);
	}



	/*
	** item getter
	*/



	/**
	 * get all collection items as array
	 * @return array
	 */
	public function getItems()
	{
		return $this->rows;
	}

	/**
	 * get collection size
	 * @return integer
	 */
	public function getSize()
	{
		return $this->totalRecords;
	}

	/**
	 * gets an specific collection item by position
	 * @param int $position
	 * @return mysqlClass_CollectionItem
	 */
	public function getItem($position)
	{
		if( $position >= 0 && $position < $this->totalRecords )
		{
			return array_slice($this->rows, $position, 1);
		}

		return false;
	}

	/**
	 * get collection item by id
	 * @param mixed $id
	 * @return mysqlClass_CollectionItem
	 */
	public function getItemById($id)
	{
		if( isset($this->rows[$id]) )
		{
			return $this->rows[$id];
		}

		return false;
	}

	/**
	 * get first item in collection
	 * @return mysqlClass_CollectionItem
	 */
	public function getFirstItem()
	{
		if( !empty($this->rows) )
		{
			return array_slice($this->rows, 0, 1);
		}
		
		return false;
	}

	/**
	 * get last item in collection
	 * @return mysqlClass_CollectionItem
	 */
	public function getLastItem()
	{
		if( !empty($this->rows) )
		{
			return array_slice($this->rows, -1, 1);
		}
		
		return false;
	}

	/**
	 * get first collection item by column value
	 * @param string $column
	 * @param mixed $value
	 * @return mysqlClass_CollectionItem
	 */
	public function getItemByColumnValue($column, $value)
	{
		foreach( $this->rows as $item )
		{
			if( $item instanceof mysqlClass_CollectionItem && $item->getData($column) === $value )
			{
				return $item;
			}
		}

		return false;
	}

	/**
	 * get all collection items by column value
	 * @param string $column
	 * @param mixed $value
	 * @return array
	 */
	public function getItemsByColumnValue($column, $value)
	{
		$items = array();
		
		foreach( $this->rows as $item )
		{
			if( $item instanceof mysqlClass_CollectionItem && $item->getData($column) === $value )
			{
				$items[] = $item;
			}
		}
		
		return $items;
	}

	/**
	 * retrieve empty collection item
	 * @return mysqlClass_CollectionItem
	 */
	public function getNewEmptyItem()
	{
		return new mysqlClass_CollectionItem();
	}

	/**
	 * get a new collection item with default data
	 * @param array $data
	 * @return mysqlClass_CollectionItem
	 */
	public function getNewItemWithData($data = array())
	{
		$item = new mysqlClass_CollectionItem();
		
		foreach( $data as $key => $value )
			if( !empty($key) )
				$item->setData($key, $value);
		
		return $item;
	}



	/*
	** getter
	*/



	/**
	 * retrieve all item ids
	 * @return array
	 */
	public function getAllIds()
	{
		return array_keys($this->rows);
	}

	/**
	 * retrieve column values from all collection items
	 * @param string $columnName
	 * @param boolean $unique
	 * @return array
	 */
	public function getColumnValues($columnName, $unique = false)
	{
		$columnValues = array();

		foreach( $this->rows as $item )
		{
			if( !($item instanceof mysqlClass_CollectionItem) )
				continue;
			
			$value = $item->getData($columnName);

			if( $unique )
			{
				if( !in_array($value, $columnValues) ) $columnValues[] = $value;
			}
			else
			{
				$columnValues[] = $value;
			}
		}

		return $columnValues;
	}
	
	/**
	 * implementation of IteratorAggregate
	 * @return ArrayIterator
	 */
	public function getIterator()
	{
		return new ArrayIterator($this->rows);
	}
	
	
	
	/*
	** public methods
	*/



	/**
	 * add an item to collection
	 * @param mysqlClass_CollectionItem $item
	 * @throws Exception
	 * @return mysqlClass_Collection
	 */
	public function addItem($item)
	{
		$itemId = $item->getData("id");
		
		if( !is_null($itemId) )
		{
			if( isset($this->rows[$itemId]) )
			{
				throw new Exception("item with the same id '" . $itemId . "' already exists");
			}

			$this->rows[$itemId] = $item;
		}
		else
		{
			$this->rows[] = $item;
		}
		
		$this->totalRecords++;
		return $this;
	}

	/**
	 * set data for all collection items
	 * @param string $key
	 * @param mixed $value
	 * @return mysqlClass_Collection
	 */
	public function setDataToAll($key, $value=null)
	{
		if( is_array($key) )
		{
			foreach( $key as $_key => $_value )
			{
				$this->setDataToAll($_key, $_value);
			}
			
			return $this;
		}
		
		foreach( $this->rows as $item )
		{
			if( $item instanceof mysqlClass_CollectionItem)
				$item->setData($key, $value);
		}

		return $this;
	}
	
	/**
	 * return the index of given object or id
	 * @param mysqlClass_CollectionItem|string|integer $object
	 * @return integer
	 */
	public function indexOf($object)
	{
		$position = 0;
		
		if( $object instanceof mysqlClass_CollectionItem )
		{
			$object = $object->getData("id");
		}
		
		foreach( $this->rows as $id => $item)
		{
			if( $id === $object )
			{
				return $position;
			}
			
			++$position;
		}
		
		return false;
	}
	
	/**
	 * check if item id exists in collection
	 * @param integer|string $id
	 * @return boolean
	 */
	public function exists($id)
	{
		return isset($this->rows[$id]);
	}

	/**
	 * check if the collection is empty or not
	 * @return boolean
	 */
	public function isEmpty()
	{
		if( $this->totalRecords == 0 )
		{
			return true;
		}
		
		return false;
	}

	/**
	 * check if given object exists in collection
	 * @param mysqlClass_CollectionItem $item
	 * @return bool
	 */
	public function contains($item)
	{
		if( $item instanceof mysqlClass_CollectionItem )
		{
			return isset($this->rows[$item->getData("id")]);
		}
		
		return false;
	}

	/**
	 * get collection item count
	 * @return integer
	 */
	public function count()
	{
		return count($this->rows);
	}

	/**
	 * alias of count
	 * @return integer
	 */
	public function length()
	{
		return $this->count();
	}

	/**
	 * serializes collection items
	 * @return string
	 */
	public function serialize()
	{
		return serialize($this->rows);
	}

	/**
	 * unserialize data and store into collection
	 * @param string $data
	 */
	public function unserialize($data)
	{
		$this->rows = unserialize($data);
	}
	
	/**
	 * remove item from collection by item id
	 * @param string|integer $id
	 * @return mysqlClass_Collection
	 */
	public function removeItemById($id)
	{
		if(isset($this->rows[$id]))
		{
			unset($this->rows[$id]);
			$this->totalRecords--;
		}
		
		return $this;
	}

	/**
	 * clear collection items
	 * @return mysqlClass_Collection
	 */
	public function clear()
	{
		$this->rows = array();
		return $this;
	}

	/**
	 * reset collection
	 * @return mysqlClass_Collection
	 */
	public function reset()
	{
		return $this->clear();
	}
	
	
	
	/*
	** filter 
	*/



	/**
	 * adds an column to filter
	 * @param string $column
	 * @param string $value
	 * @param string $logic
	 * @return mysqlClass_Collection
	 */
	public function addColumnToFilter($column, $value, $logic = self::LOGIC_EQ)
	{
		$filter = array();
		$filter["field"] = $column;
		$filter["value"] = $value;
		$filter["logic"] = strtolower($logic);
		$this->filters[] = $filter;
		
		$this->filterCollection($column, $value, $logic);
		
		return $this;
	}

	/**
	 * alias of addColumnToFilter
	 * @param string $field
	 * @param string $value
	 * @param string $logic
	 * @return mysqlClass_Collection
	 */
	public function addFieldToFilter($field, $value, $logic = self::LOGIC_EQ)
	{
		return $this->addColumnToFilter($field, $value, $logic);
	}

	/**
	 * gets an collection of filtered items
	 * @param string $field
	 * @param string $value
	 * @param string $logic
	 * @return mysqlClass_Collection
	 */
	public function filterCollection($field, $value, $logic = self::LOGIC_EQ)
	{
		$filteredCollection = new self();
		
		// only convert value once
		if( $logic == self::LOGIC_IN )
			$value = is_array($value) ? $value : explode(",", $value);
		
		foreach( $this->rows as $item )
		{
			if( !($item instanceof mysqlClass_CollectionItem) )
				continue;
			
			switch( $logic )
			{
				case self::LOGIC_IN:
					if( in_array($item->getData($field), $value) ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_LIKE:
					if( strpos(strtolower($item->getData($field)), strtolower($value)) !== false ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_GT:
					if( intval($item->getData($field)) > intval($value) ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_LT:
					if( intval($item->getData($field)) < intval($value) ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_GTE:
					if( intval($item->getData($field)) >= intval($value) ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_LTE:
					if( intval($item->getData($field)) <= intval($value) ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_NEQ:
					if( $item->getData($field) != $value ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_SNEQ:
					if( $item->getData($field) !== $value ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_SEQ:
					if( $item->getData($field) === $value ) $filteredCollection->addItem($item);
				break;

				case self::LOGIC_EQ:
				default:
					if( $item->getData($field) == $value ) $filteredCollection->addItem($item);
				break;

			}
		}
		
		$this->isFiltersLoaded = true;
		$this->rows = $filteredCollection->getItems();
		
		unset($filteredCollection);
		
		return $this;
	}
	
	
	
	/*
	** callbacks 
	*/



	/**
	 * walk through the collection and returns array with results
	 * @param string $callback
	 * @param array $arguments
	 * @return array
	 */
	public function walk($callback, $arguments = array())
	{
		$results = array();
		
		foreach( $this->rows as $id => $item )
		{
			array_unshift($arguments, $item);		
			$results[$id] = call_user_func_array($callback, $arguments);
		}
		
		return $results;
	}

	/**
	 * 
	 * @param $callback
	 * @param array $arguments
	 * @return mysqlClass_Collection
	 */
	public function each($callback, $arguments = array())
	{
		foreach( $this->rows as $id => $item )
		{
			array_unshift($arguments, $item);
			$this->rows[$id] = call_user_func_array($callback, $arguments);
		}
		
		return $this;
	}
	
	
	
	/*
	** output
	*/



	/**
	 * return collection as xml
	 * @return string
	 */
	public function toXml()
	{
		$xml  = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
		$xml .= "<collection>\n";
		$xml .= "    <totalRecords>" . $this->totalRecords . "</totalRecords>\n";
		$xml .= "    <items>\n";

		foreach( $this->rows as $item )
		{
			if( $item instanceof mysqlClass_CollectionItem )
				$xml .= $item->toXml(true);
		}

		$xml .= "    <items>\n";
		$xml .= "<collection>\n";

		return $xml;
	}

	/**
	 * return collection as array
	 * @param array $requiredFields
	 * @return array
	 */
	public function toArray($requiredFields = array())
	{
		$array = array();
		$array["totalRecords"] = $this->totalRecords;
		$array["items"] = array();
		
		foreach( $this->rows as $id => $item )
		{
			if( $item instanceof mysqlClass_CollectionItem )
				$array["items"][$id] = $item->toArray($requiredFields);
		}
		
		return $array;
	}

	/**
	 * return collection as string
	 * @return string
	 */
	public function toString()
	{
		return $this->serialize();
	}
	
	
	
	/*
	** array access
	*/



	/**
	 * implementation of ArrayAccess
	 * @param string $id
	 * @param mixed $value
	 */
	public function offsetSet($id, $value)
	{
		$this->rows[$id] = $value;
	}

	/**
	 * implementation of ArrayAccess
	 * @param string $id
	 * @return boolean
	 */
	public function offsetExists($id)
	{
		return isset($this->rows[$id]);
	}

	/**
	 * implementation of ArrayAccess
	 * @param string $id
	 */
	public function offsetUnset($id)
	{
		unset($this->rows[$id]);
	}

	/**
	 * implementation of ArrayAccess
	 * @param string $id
	 * @return mysqlClass_CollectionItem
	 */
	public function offsetGet($id)
	{
		return isset($this->rows[$id]) ? $this->rows[$id] : false;
	}
}
Back to Top