1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
namespace SilverStripe\ORM; |
4
|
|
|
|
5
|
|
|
use SilverStripe\Core\Injector\Injector; |
6
|
|
|
use SilverStripe\Dev\Debug; |
7
|
|
|
use SilverStripe\ORM\Filters\SearchFilter; |
8
|
|
|
use SilverStripe\ORM\Queries\SQLConditionGroup; |
9
|
|
|
use SilverStripe\View\TemplateIterator; |
10
|
|
|
use SilverStripe\View\ViewableData; |
11
|
|
|
use ArrayIterator; |
12
|
|
|
use Exception; |
13
|
|
|
use InvalidArgumentException; |
14
|
|
|
use LogicException; |
15
|
|
|
|
16
|
|
|
/** |
17
|
|
|
* Implements a "lazy loading" DataObjectSet. |
18
|
|
|
* Uses {@link DataQuery} to do the actual query generation. |
19
|
|
|
* |
20
|
|
|
* DataLists are _immutable_ as far as the query they represent is concerned. When you call a method that |
21
|
|
|
* alters the query, a new DataList instance is returned, rather than modifying the existing instance |
22
|
|
|
* |
23
|
|
|
* When you add or remove an element to the list the query remains the same, but because you have modified |
24
|
|
|
* the underlying data the contents of the list changes. These are some of those methods: |
25
|
|
|
* |
26
|
|
|
* - add |
27
|
|
|
* - addMany |
28
|
|
|
* - remove |
29
|
|
|
* - removeMany |
30
|
|
|
* - removeByID |
31
|
|
|
* - removeByFilter |
32
|
|
|
* - removeAll |
33
|
|
|
* |
34
|
|
|
* Subclasses of DataList may add other methods that have the same effect. |
35
|
|
|
*/ |
36
|
|
|
class DataList extends ViewableData implements SS_List, Filterable, Sortable, Limitable |
37
|
|
|
{ |
38
|
|
|
|
39
|
|
|
/** |
40
|
|
|
* The DataObject class name that this data list is querying |
41
|
|
|
* |
42
|
|
|
* @var string |
43
|
|
|
*/ |
44
|
|
|
protected $dataClass; |
45
|
|
|
|
46
|
|
|
/** |
47
|
|
|
* The {@link DataQuery} object responsible for getting this DataList's records |
48
|
|
|
* |
49
|
|
|
* @var DataQuery |
50
|
|
|
*/ |
51
|
|
|
protected $dataQuery; |
52
|
|
|
|
53
|
|
|
/** |
54
|
|
|
* A cached Query to save repeated database calls. {@see DataList::getTemplateIteratorCount()} |
55
|
|
|
* |
56
|
|
|
* @var SilverStripe\ORM\Connect\Query |
|
|
|
|
57
|
|
|
*/ |
58
|
|
|
protected $finalisedQuery; |
59
|
|
|
|
60
|
|
|
/** |
61
|
|
|
* Create a new DataList. |
62
|
|
|
* No querying is done on construction, but the initial query schema is set up. |
63
|
|
|
* |
64
|
|
|
* @param string $dataClass - The DataObject class to query. |
65
|
|
|
*/ |
66
|
|
|
public function __construct($dataClass) |
67
|
|
|
{ |
68
|
|
|
$this->dataClass = $dataClass; |
69
|
|
|
$this->dataQuery = new DataQuery($this->dataClass); |
70
|
|
|
|
71
|
|
|
parent::__construct(); |
72
|
|
|
} |
73
|
|
|
|
74
|
|
|
/** |
75
|
|
|
* Get the dataClass name for this DataList, ie the DataObject ClassName |
76
|
|
|
* |
77
|
|
|
* @return string |
78
|
|
|
*/ |
79
|
|
|
public function dataClass() |
80
|
|
|
{ |
81
|
|
|
return $this->dataClass; |
82
|
|
|
} |
83
|
|
|
|
84
|
|
|
/** |
85
|
|
|
* When cloning this object, clone the dataQuery object as well |
86
|
|
|
*/ |
87
|
|
|
public function __clone() |
88
|
|
|
{ |
89
|
|
|
$this->dataQuery = clone $this->dataQuery; |
90
|
|
|
$this->finalisedQuery = null; |
91
|
|
|
} |
92
|
|
|
|
93
|
|
|
/** |
94
|
|
|
* Return a copy of the internal {@link DataQuery} object |
95
|
|
|
* |
96
|
|
|
* Because the returned value is a copy, modifying it won't affect this list's contents. If |
97
|
|
|
* you want to alter the data query directly, use the alterDataQuery method |
98
|
|
|
* |
99
|
|
|
* @return DataQuery |
100
|
|
|
*/ |
101
|
|
|
public function dataQuery() |
102
|
|
|
{ |
103
|
|
|
return clone $this->dataQuery; |
104
|
|
|
} |
105
|
|
|
|
106
|
|
|
/** |
107
|
|
|
* @var bool - Indicates if we are in an alterDataQueryCall already, so alterDataQuery can be re-entrant |
108
|
|
|
*/ |
109
|
|
|
protected $inAlterDataQueryCall = false; |
110
|
|
|
|
111
|
|
|
/** |
112
|
|
|
* Return a new DataList instance with the underlying {@link DataQuery} object altered |
113
|
|
|
* |
114
|
|
|
* If you want to alter the underlying dataQuery for this list, this wrapper method |
115
|
|
|
* will ensure that you can do so without mutating the existing List object. |
116
|
|
|
* |
117
|
|
|
* It clones this list, calls the passed callback function with the dataQuery of the new |
118
|
|
|
* list as it's first parameter (and the list as it's second), then returns the list |
119
|
|
|
* |
120
|
|
|
* Note that this function is re-entrant - it's safe to call this inside a callback passed to |
121
|
|
|
* alterDataQuery |
122
|
|
|
* |
123
|
|
|
* @param callable $callback |
124
|
|
|
* @return static |
125
|
|
|
* @throws Exception |
126
|
|
|
*/ |
127
|
|
|
public function alterDataQuery($callback) |
128
|
|
|
{ |
129
|
|
|
if ($this->inAlterDataQueryCall) { |
130
|
|
|
$list = $this; |
131
|
|
|
|
132
|
|
|
$res = call_user_func($callback, $list->dataQuery, $list); |
133
|
|
|
if ($res) { |
134
|
|
|
$list->dataQuery = $res; |
135
|
|
|
} |
136
|
|
|
|
137
|
|
|
return $list; |
138
|
|
|
} else { |
139
|
|
|
$list = clone $this; |
140
|
|
|
$list->inAlterDataQueryCall = true; |
141
|
|
|
|
142
|
|
|
try { |
143
|
|
|
$res = call_user_func($callback, $list->dataQuery, $list); |
144
|
|
|
if ($res) { |
145
|
|
|
$list->dataQuery = $res; |
146
|
|
|
} |
147
|
|
|
} catch (Exception $e) { |
148
|
|
|
$list->inAlterDataQueryCall = false; |
149
|
|
|
throw $e; |
150
|
|
|
} |
151
|
|
|
|
152
|
|
|
$list->inAlterDataQueryCall = false; |
153
|
|
|
return $list; |
154
|
|
|
} |
155
|
|
|
} |
156
|
|
|
|
157
|
|
|
/** |
158
|
|
|
* Return a new DataList instance with the underlying {@link DataQuery} object changed |
159
|
|
|
* |
160
|
|
|
* @param DataQuery $dataQuery |
161
|
|
|
* @return static |
162
|
|
|
*/ |
163
|
|
|
public function setDataQuery(DataQuery $dataQuery) |
164
|
|
|
{ |
165
|
|
|
$clone = clone $this; |
166
|
|
|
$clone->dataQuery = $dataQuery; |
167
|
|
|
return $clone; |
168
|
|
|
} |
169
|
|
|
|
170
|
|
|
/** |
171
|
|
|
* Returns a new DataList instance with the specified query parameter assigned |
172
|
|
|
* |
173
|
|
|
* @param string|array $keyOrArray Either the single key to set, or an array of key value pairs to set |
174
|
|
|
* @param mixed $val If $keyOrArray is not an array, this is the value to set |
175
|
|
|
* @return static |
176
|
|
|
*/ |
177
|
|
|
public function setDataQueryParam($keyOrArray, $val = null) |
178
|
|
|
{ |
179
|
|
|
$clone = clone $this; |
180
|
|
|
|
181
|
|
|
if (is_array($keyOrArray)) { |
182
|
|
|
foreach ($keyOrArray as $key => $val) { |
183
|
|
|
$clone->dataQuery->setQueryParam($key, $val); |
184
|
|
|
} |
185
|
|
|
} else { |
186
|
|
|
$clone->dataQuery->setQueryParam($keyOrArray, $val); |
187
|
|
|
} |
188
|
|
|
|
189
|
|
|
return $clone; |
190
|
|
|
} |
191
|
|
|
|
192
|
|
|
/** |
193
|
|
|
* Returns the SQL query that will be used to get this DataList's records. Good for debugging. :-) |
194
|
|
|
* |
195
|
|
|
* @param array $parameters Out variable for parameters required for this query |
196
|
|
|
* @return string The resulting SQL query (may be paramaterised) |
197
|
|
|
*/ |
198
|
|
|
public function sql(&$parameters = array()) |
199
|
|
|
{ |
200
|
|
|
return $this->dataQuery->query()->sql($parameters); |
201
|
|
|
} |
202
|
|
|
|
203
|
|
|
/** |
204
|
|
|
* Return a new DataList instance with a WHERE clause added to this list's query. |
205
|
|
|
* |
206
|
|
|
* Supports parameterised queries. |
207
|
|
|
* See SQLSelect::addWhere() for syntax examples, although DataList |
208
|
|
|
* won't expand multiple method arguments as SQLSelect does. |
209
|
|
|
* |
210
|
|
|
* @param string|array|SQLConditionGroup $filter Predicate(s) to set, as escaped SQL statements or |
211
|
|
|
* paramaterised queries |
212
|
|
|
* @return static |
213
|
|
|
*/ |
214
|
|
|
public function where($filter) |
215
|
|
|
{ |
216
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($filter) { |
217
|
|
|
$query->where($filter); |
218
|
|
|
}); |
219
|
|
|
} |
220
|
|
|
|
221
|
|
|
/** |
222
|
|
|
* Return a new DataList instance with a WHERE clause added to this list's query. |
223
|
|
|
* All conditions provided in the filter will be joined with an OR |
224
|
|
|
* |
225
|
|
|
* Supports parameterised queries. |
226
|
|
|
* See SQLSelect::addWhere() for syntax examples, although DataList |
227
|
|
|
* won't expand multiple method arguments as SQLSelect does. |
228
|
|
|
* |
229
|
|
|
* @param string|array|SQLConditionGroup $filter Predicate(s) to set, as escaped SQL statements or |
230
|
|
|
* paramaterised queries |
231
|
|
|
* @return static |
232
|
|
|
*/ |
233
|
|
|
public function whereAny($filter) |
234
|
|
|
{ |
235
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($filter) { |
236
|
|
|
$query->whereAny($filter); |
237
|
|
|
}); |
238
|
|
|
} |
239
|
|
|
|
240
|
|
|
|
241
|
|
|
|
242
|
|
|
/** |
243
|
|
|
* Returns true if this DataList can be sorted by the given field. |
244
|
|
|
* |
245
|
|
|
* @param string $fieldName |
246
|
|
|
* @return boolean |
247
|
|
|
*/ |
248
|
|
|
public function canSortBy($fieldName) |
249
|
|
|
{ |
250
|
|
|
return $this->dataQuery()->query()->canSortBy($fieldName); |
251
|
|
|
} |
252
|
|
|
|
253
|
|
|
/** |
254
|
|
|
* Returns true if this DataList can be filtered by the given field. |
255
|
|
|
* |
256
|
|
|
* @param string $fieldName (May be a related field in dot notation like Member.FirstName) |
257
|
|
|
* @return boolean |
258
|
|
|
*/ |
259
|
|
|
public function canFilterBy($fieldName) |
260
|
|
|
{ |
261
|
|
|
$model = singleton($this->dataClass); |
262
|
|
|
$relations = explode(".", $fieldName); |
263
|
|
|
// First validate the relationships |
264
|
|
|
$fieldName = array_pop($relations); |
265
|
|
|
foreach ($relations as $r) { |
266
|
|
|
$relationClass = $model->getRelationClass($r); |
267
|
|
|
if (!$relationClass) { |
268
|
|
|
return false; |
269
|
|
|
} |
270
|
|
|
$model = singleton($relationClass); |
271
|
|
|
if (!$model) { |
272
|
|
|
return false; |
273
|
|
|
} |
274
|
|
|
} |
275
|
|
|
// Then check field |
276
|
|
|
if ($model->hasDatabaseField($fieldName)) { |
277
|
|
|
return true; |
278
|
|
|
} |
279
|
|
|
return false; |
280
|
|
|
} |
281
|
|
|
|
282
|
|
|
/** |
283
|
|
|
* Return a new DataList instance with the records returned in this query |
284
|
|
|
* restricted by a limit clause. |
285
|
|
|
* |
286
|
|
|
* @param int $limit |
287
|
|
|
* @param int $offset |
288
|
|
|
* @return static |
289
|
|
|
*/ |
290
|
|
|
public function limit($limit, $offset = 0) |
291
|
|
|
{ |
292
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($limit, $offset) { |
293
|
|
|
$query->limit($limit, $offset); |
294
|
|
|
}); |
295
|
|
|
} |
296
|
|
|
|
297
|
|
|
/** |
298
|
|
|
* Return a new DataList instance with distinct records or not |
299
|
|
|
* |
300
|
|
|
* @param bool $value |
301
|
|
|
* @return static |
302
|
|
|
*/ |
303
|
|
|
public function distinct($value) |
304
|
|
|
{ |
305
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($value) { |
306
|
|
|
$query->distinct($value); |
307
|
|
|
}); |
308
|
|
|
} |
309
|
|
|
|
310
|
|
|
/** |
311
|
|
|
* Return a new DataList instance as a copy of this data list with the sort |
312
|
|
|
* order set. |
313
|
|
|
* |
314
|
|
|
* @see SS_List::sort() |
315
|
|
|
* @see SQLSelect::orderby |
316
|
|
|
* @example $list = $list->sort('Name'); // default ASC sorting |
317
|
|
|
* @example $list = $list->sort('Name DESC'); // DESC sorting |
318
|
|
|
* @example $list = $list->sort('Name', 'ASC'); |
319
|
|
|
* @example $list = $list->sort(array('Name'=>'ASC', 'Age'=>'DESC')); |
320
|
|
|
* |
321
|
|
|
* @param String|array Escaped SQL statement. If passed as array, all keys and values are assumed to be escaped. |
|
|
|
|
322
|
|
|
* @return static |
323
|
|
|
*/ |
324
|
|
|
public function sort() |
325
|
|
|
{ |
326
|
|
|
$count = func_num_args(); |
327
|
|
|
|
328
|
|
|
if ($count == 0) { |
329
|
|
|
return $this; |
330
|
|
|
} |
331
|
|
|
|
332
|
|
|
if ($count > 2) { |
333
|
|
|
throw new InvalidArgumentException('This method takes zero, one or two arguments'); |
334
|
|
|
} |
335
|
|
|
|
336
|
|
|
if ($count == 2) { |
337
|
|
|
$col = null; |
338
|
|
|
$dir = null; |
339
|
|
|
list($col, $dir) = func_get_args(); |
340
|
|
|
|
341
|
|
|
// Validate direction |
342
|
|
|
if (!in_array(strtolower($dir), array('desc','asc'))) { |
343
|
|
|
user_error('Second argument to sort must be either ASC or DESC'); |
344
|
|
|
} |
345
|
|
|
|
346
|
|
|
$sort = array($col => $dir); |
347
|
|
|
} else { |
348
|
|
|
$sort = func_get_arg(0); |
349
|
|
|
} |
350
|
|
|
|
351
|
|
|
return $this->alterDataQuery(function (DataQuery $query, DataList $list) use ($sort) { |
352
|
|
|
|
353
|
|
|
if (is_string($sort) && $sort) { |
354
|
|
|
if (stristr($sort, ' asc') || stristr($sort, ' desc')) { |
355
|
|
|
$query->sort($sort); |
356
|
|
|
} else { |
357
|
|
|
$list->applyRelation($sort, $column, true); |
358
|
|
|
$query->sort($column, 'ASC'); |
359
|
|
|
} |
360
|
|
|
} elseif (is_array($sort)) { |
361
|
|
|
// sort(array('Name'=>'desc')); |
|
|
|
|
362
|
|
|
$query->sort(null, null); // wipe the sort |
363
|
|
|
|
364
|
|
|
foreach ($sort as $column => $direction) { |
365
|
|
|
// Convert column expressions to SQL fragment, while still allowing the passing of raw SQL |
366
|
|
|
// fragments. |
367
|
|
|
$list->applyRelation($column, $relationColumn, true); |
368
|
|
|
$query->sort($relationColumn, $direction, false); |
369
|
|
|
} |
370
|
|
|
} |
371
|
|
|
}); |
372
|
|
|
} |
373
|
|
|
|
374
|
|
|
/** |
375
|
|
|
* Return a copy of this list which only includes items with these charactaristics |
376
|
|
|
* |
377
|
|
|
* @see SS_List::filter() |
378
|
|
|
* |
379
|
|
|
* @example $list = $list->filter('Name', 'bob'); // only bob in the list |
380
|
|
|
* @example $list = $list->filter('Name', array('aziz', 'bob'); // aziz and bob in list |
381
|
|
|
* @example $list = $list->filter(array('Name'=>'bob', 'Age'=>21)); // bob with the age 21 |
382
|
|
|
* @example $list = $list->filter(array('Name'=>'bob', 'Age'=>array(21, 43))); // bob with the Age 21 or 43 |
383
|
|
|
* @example $list = $list->filter(array('Name'=>array('aziz','bob'), 'Age'=>array(21, 43))); |
384
|
|
|
* // aziz with the age 21 or 43 and bob with the Age 21 or 43 |
385
|
|
|
* |
386
|
|
|
* Note: When filtering on nullable columns, null checks will be automatically added. |
387
|
|
|
* E.g. ->filter('Field:not', 'value) will generate '... OR "Field" IS NULL', and |
388
|
|
|
* ->filter('Field:not', null) will generate '"Field" IS NOT NULL' |
389
|
|
|
* |
390
|
|
|
* @todo extract the sql from $customQuery into a SQLGenerator class |
391
|
|
|
* |
392
|
|
|
* @param string|array Escaped SQL statement. If passed as array, all keys and values will be escaped internally |
393
|
|
|
* @return $this |
394
|
|
|
*/ |
395
|
|
|
public function filter() |
396
|
|
|
{ |
397
|
|
|
// Validate and process arguments |
398
|
|
|
$arguments = func_get_args(); |
399
|
|
|
switch (sizeof($arguments)) { |
400
|
|
|
case 1: |
401
|
|
|
$filters = $arguments[0]; |
402
|
|
|
|
403
|
|
|
break; |
404
|
|
|
case 2: |
405
|
|
|
$filters = array($arguments[0] => $arguments[1]); |
406
|
|
|
|
407
|
|
|
break; |
408
|
|
|
default: |
409
|
|
|
throw new InvalidArgumentException('Incorrect number of arguments passed to filter()'); |
410
|
|
|
} |
411
|
|
|
|
412
|
|
|
return $this->addFilter($filters); |
413
|
|
|
} |
414
|
|
|
|
415
|
|
|
/** |
416
|
|
|
* Return a new instance of the list with an added filter |
417
|
|
|
* |
418
|
|
|
* @param array $filterArray |
419
|
|
|
* @return $this |
420
|
|
|
*/ |
421
|
|
|
public function addFilter($filterArray) |
422
|
|
|
{ |
423
|
|
|
$list = $this; |
424
|
|
|
|
425
|
|
|
foreach ($filterArray as $expression => $value) { |
426
|
|
|
$filter = $this->createSearchFilter($expression, $value); |
427
|
|
|
$list = $list->alterDataQuery(array($filter, 'apply')); |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
return $list; |
431
|
|
|
} |
432
|
|
|
|
433
|
|
|
/** |
434
|
|
|
* Return a copy of this list which contains items matching any of these charactaristics. |
435
|
|
|
* |
436
|
|
|
* @example // only bob in the list |
437
|
|
|
* $list = $list->filterAny('Name', 'bob'); |
438
|
|
|
* // SQL: WHERE "Name" = 'bob' |
439
|
|
|
* @example // azis or bob in the list |
440
|
|
|
* $list = $list->filterAny('Name', array('aziz', 'bob'); |
441
|
|
|
* // SQL: WHERE ("Name" IN ('aziz','bob')) |
442
|
|
|
* @example // bob or anyone aged 21 in the list |
443
|
|
|
* $list = $list->filterAny(array('Name'=>'bob, 'Age'=>21)); |
444
|
|
|
* // SQL: WHERE ("Name" = 'bob' OR "Age" = '21') |
445
|
|
|
* @example // bob or anyone aged 21 or 43 in the list |
446
|
|
|
* $list = $list->filterAny(array('Name'=>'bob, 'Age'=>array(21, 43))); |
447
|
|
|
* // SQL: WHERE ("Name" = 'bob' OR ("Age" IN ('21', '43')) |
448
|
|
|
* @example // all bobs, phils or anyone aged 21 or 43 in the list |
449
|
|
|
* $list = $list->filterAny(array('Name'=>array('bob','phil'), 'Age'=>array(21, 43))); |
450
|
|
|
* // SQL: WHERE (("Name" IN ('bob', 'phil')) OR ("Age" IN ('21', '43')) |
451
|
|
|
* |
452
|
|
|
* @todo extract the sql from this method into a SQLGenerator class |
453
|
|
|
* |
454
|
|
|
* @param string|array See {@link filter()} |
|
|
|
|
455
|
|
|
* @return static |
456
|
|
|
*/ |
457
|
|
|
public function filterAny() |
458
|
|
|
{ |
459
|
|
|
$numberFuncArgs = count(func_get_args()); |
460
|
|
|
$whereArguments = array(); |
461
|
|
|
|
462
|
|
|
if ($numberFuncArgs == 1 && is_array(func_get_arg(0))) { |
463
|
|
|
$whereArguments = func_get_arg(0); |
464
|
|
|
} elseif ($numberFuncArgs == 2) { |
465
|
|
|
$whereArguments[func_get_arg(0)] = func_get_arg(1); |
466
|
|
|
} else { |
467
|
|
|
throw new InvalidArgumentException('Incorrect number of arguments passed to filterAny()'); |
468
|
|
|
} |
469
|
|
|
|
470
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($whereArguments) { |
471
|
|
|
$subquery = $query->disjunctiveGroup(); |
472
|
|
|
|
473
|
|
|
foreach ($whereArguments as $field => $value) { |
474
|
|
|
$filter = $this->createSearchFilter($field, $value); |
475
|
|
|
$filter->apply($subquery); |
476
|
|
|
} |
477
|
|
|
}); |
478
|
|
|
} |
479
|
|
|
|
480
|
|
|
/** |
481
|
|
|
* Note that, in the current implementation, the filtered list will be an ArrayList, but this may change in a |
482
|
|
|
* future implementation. |
483
|
|
|
* @see Filterable::filterByCallback() |
484
|
|
|
* |
485
|
|
|
* @example $list = $list->filterByCallback(function($item, $list) { return $item->Age == 9; }) |
486
|
|
|
* @param callable $callback |
487
|
|
|
* @return ArrayList (this may change in future implementations) |
488
|
|
|
*/ |
489
|
|
|
public function filterByCallback($callback) |
490
|
|
|
{ |
491
|
|
|
if (!is_callable($callback)) { |
492
|
|
|
throw new LogicException(sprintf( |
493
|
|
|
"SS_Filterable::filterByCallback() passed callback must be callable, '%s' given", |
494
|
|
|
gettype($callback) |
495
|
|
|
)); |
496
|
|
|
} |
497
|
|
|
/** @var ArrayList $output */ |
498
|
|
|
$output = ArrayList::create(); |
499
|
|
|
foreach ($this as $item) { |
500
|
|
|
if (call_user_func($callback, $item, $this)) { |
501
|
|
|
$output->push($item); |
502
|
|
|
} |
503
|
|
|
} |
504
|
|
|
return $output; |
505
|
|
|
} |
506
|
|
|
|
507
|
|
|
/** |
508
|
|
|
* Given a field or relation name, apply it safely to this datalist. |
509
|
|
|
* |
510
|
|
|
* Unlike getRelationName, this is immutable and will fallback to the quoted field |
511
|
|
|
* name if not a relation. |
512
|
|
|
* |
513
|
|
|
* @param string $field Name of field or relation to apply |
514
|
|
|
* @param string &$columnName Quoted column name |
515
|
|
|
* @param bool $linearOnly Set to true to restrict to linear relations only. Set this |
516
|
|
|
* if this relation will be used for sorting, and should not include duplicate rows. |
517
|
|
|
* @return $this DataList with this relation applied |
518
|
|
|
*/ |
519
|
|
|
public function applyRelation($field, &$columnName = null, $linearOnly = false) |
520
|
|
|
{ |
521
|
|
|
// If field is invalid, return it without modification |
522
|
|
|
if (!$this->isValidRelationName($field)) { |
523
|
|
|
$columnName = $field; |
524
|
|
|
return $this; |
525
|
|
|
} |
526
|
|
|
|
527
|
|
|
// Simple fields without relations are mapped directly |
528
|
|
|
if (strpos($field, '.') === false) { |
529
|
|
|
$columnName = '"' . $field . '"'; |
530
|
|
|
return $this; |
531
|
|
|
} |
532
|
|
|
|
533
|
|
|
return $this->alterDataQuery( |
534
|
|
|
function (DataQuery $query) use ($field, &$columnName, $linearOnly) { |
535
|
|
|
$relations = explode('.', $field); |
536
|
|
|
$fieldName = array_pop($relations); |
537
|
|
|
|
538
|
|
|
// Apply relation |
539
|
|
|
$relationModelName = $query->applyRelation($relations, $linearOnly); |
540
|
|
|
$relationPrefix = $query->applyRelationPrefix($relations); |
541
|
|
|
|
542
|
|
|
// Find the db field the relation belongs to |
543
|
|
|
$columnName = DataObject::getSchema() |
544
|
|
|
->sqlColumnForField($relationModelName, $fieldName, $relationPrefix); |
545
|
|
|
} |
546
|
|
|
); |
547
|
|
|
} |
548
|
|
|
|
549
|
|
|
/** |
550
|
|
|
* Check if the given field specification could be interpreted as an unquoted relation name |
551
|
|
|
* |
552
|
|
|
* @param string $field |
553
|
|
|
* @return bool |
554
|
|
|
*/ |
555
|
|
|
protected function isValidRelationName($field) |
556
|
|
|
{ |
557
|
|
|
return preg_match('/^[A-Z0-9._]+$/i', $field); |
558
|
|
|
} |
559
|
|
|
|
560
|
|
|
/** |
561
|
|
|
* Given a filter expression and value construct a {@see SearchFilter} instance |
562
|
|
|
* |
563
|
|
|
* @param string $filter E.g. `Name:ExactMatch:not`, `Name:ExactMatch`, `Name:not`, `Name` |
564
|
|
|
* @param mixed $value Value of the filter |
565
|
|
|
* @return SearchFilter |
566
|
|
|
*/ |
567
|
|
|
protected function createSearchFilter($filter, $value) |
568
|
|
|
{ |
569
|
|
|
// Field name is always the first component |
570
|
|
|
$fieldArgs = explode(':', $filter); |
571
|
|
|
$fieldName = array_shift($fieldArgs); |
572
|
|
|
|
573
|
|
|
// Inspect type of second argument to determine context |
574
|
|
|
$secondArg = array_shift($fieldArgs); |
575
|
|
|
$modifiers = $fieldArgs; |
576
|
|
|
if (!$secondArg) { |
577
|
|
|
// Use default filter if none specified. E.g. `->filter(['Name' => $myname])` |
578
|
|
|
$filterServiceName = 'DataListFilter.default'; |
579
|
|
|
} else { |
580
|
|
|
// The presence of a second argument is by default ambiguous; We need to query |
581
|
|
|
// Whether this is a valid modifier on the default filter, or a filter itself. |
582
|
|
|
/** @var SearchFilter $defaultFilterInstance */ |
583
|
|
|
$defaultFilterInstance = Injector::inst()->get('DataListFilter.default'); |
584
|
|
|
if (in_array(strtolower($secondArg), $defaultFilterInstance->getSupportedModifiers())) { |
585
|
|
|
// Treat second (and any subsequent) argument as modifiers, using default filter |
586
|
|
|
$filterServiceName = 'DataListFilter.default'; |
587
|
|
|
array_unshift($modifiers, $secondArg); |
588
|
|
|
} else { |
589
|
|
|
// Second argument isn't a valid modifier, so assume is filter identifier |
590
|
|
|
$filterServiceName = "DataListFilter.{$secondArg}"; |
591
|
|
|
} |
592
|
|
|
} |
593
|
|
|
|
594
|
|
|
// Build instance |
595
|
|
|
return Injector::inst()->create($filterServiceName, $fieldName, $value, $modifiers); |
596
|
|
|
} |
597
|
|
|
|
598
|
|
|
/** |
599
|
|
|
* Return a copy of this list which does not contain any items that match all params |
600
|
|
|
* |
601
|
|
|
* @example $list = $list->exclude('Name', 'bob'); // exclude bob from list |
602
|
|
|
* @example $list = $list->exclude('Name', array('aziz', 'bob'); // exclude aziz and bob from list |
603
|
|
|
* @example $list = $list->exclude(array('Name'=>'bob, 'Age'=>21)); // exclude bob that has Age 21 |
604
|
|
|
* @example $list = $list->exclude(array('Name'=>'bob, 'Age'=>array(21, 43))); // exclude bob with Age 21 or 43 |
605
|
|
|
* @example $list = $list->exclude(array('Name'=>array('bob','phil'), 'Age'=>array(21, 43))); |
606
|
|
|
* // bob age 21 or 43, phil age 21 or 43 would be excluded |
607
|
|
|
* |
608
|
|
|
* @todo extract the sql from this method into a SQLGenerator class |
609
|
|
|
* |
610
|
|
|
* @param string|array |
611
|
|
|
* @param string [optional] |
612
|
|
|
* |
613
|
|
|
* @return $this |
614
|
|
|
*/ |
615
|
|
|
public function exclude() |
616
|
|
|
{ |
617
|
|
|
$numberFuncArgs = count(func_get_args()); |
618
|
|
|
$whereArguments = array(); |
619
|
|
|
|
620
|
|
|
if ($numberFuncArgs == 1 && is_array(func_get_arg(0))) { |
621
|
|
|
$whereArguments = func_get_arg(0); |
622
|
|
|
} elseif ($numberFuncArgs == 2) { |
623
|
|
|
$whereArguments[func_get_arg(0)] = func_get_arg(1); |
624
|
|
|
} else { |
625
|
|
|
throw new InvalidArgumentException('Incorrect number of arguments passed to exclude()'); |
626
|
|
|
} |
627
|
|
|
|
628
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($whereArguments) { |
629
|
|
|
$subquery = $query->disjunctiveGroup(); |
630
|
|
|
|
631
|
|
|
foreach ($whereArguments as $field => $value) { |
632
|
|
|
$filter = $this->createSearchFilter($field, $value); |
633
|
|
|
$filter->exclude($subquery); |
634
|
|
|
} |
635
|
|
|
}); |
636
|
|
|
} |
637
|
|
|
|
638
|
|
|
/** |
639
|
|
|
* Return a copy of this list which does not contain any items with any of these params |
640
|
|
|
* |
641
|
|
|
* @example $list = $list->excludeAny('Name', 'bob'); // exclude bob from list |
642
|
|
|
* @example $list = $list->excludeAny('Name', array('aziz', 'bob'); // exclude aziz and bob from list |
643
|
|
|
* @example $list = $list->excludeAny(array('Name'=>'bob, 'Age'=>21)); // exclude bob or Age 21 |
644
|
|
|
* @example $list = $list->excludeAny(array('Name'=>'bob, 'Age'=>array(21, 43))); // exclude bob or Age 21 or 43 |
645
|
|
|
* @example $list = $list->excludeAny(array('Name'=>array('bob','phil'), 'Age'=>array(21, 43))); |
646
|
|
|
* // bob, phil, 21 or 43 would be excluded |
647
|
|
|
* |
648
|
|
|
* @param string|array |
649
|
|
|
* @param string [optional] |
650
|
|
|
* |
651
|
|
|
* @return $this |
652
|
|
|
*/ |
653
|
|
|
public function excludeAny() |
654
|
|
|
{ |
655
|
|
|
$numberFuncArgs = count(func_get_args()); |
656
|
|
|
$whereArguments = array(); |
657
|
|
|
|
658
|
|
|
if ($numberFuncArgs == 1 && is_array(func_get_arg(0))) { |
659
|
|
|
$whereArguments = func_get_arg(0); |
660
|
|
|
} elseif ($numberFuncArgs == 2) { |
661
|
|
|
$whereArguments[func_get_arg(0)] = func_get_arg(1); |
662
|
|
|
} else { |
663
|
|
|
throw new InvalidArgumentException('Incorrect number of arguments passed to excludeAny()'); |
664
|
|
|
} |
665
|
|
|
|
666
|
|
|
return $this->alterDataQuery(function (DataQuery $dataQuery) use ($whereArguments) { |
667
|
|
|
foreach ($whereArguments as $field => $value) { |
668
|
|
|
$filter = $this->createSearchFilter($field, $value); |
669
|
|
|
$filter->exclude($dataQuery); |
670
|
|
|
} |
671
|
|
|
return $dataQuery; |
672
|
|
|
}); |
673
|
|
|
} |
674
|
|
|
|
675
|
|
|
/** |
676
|
|
|
* This method returns a copy of this list that does not contain any DataObjects that exists in $list |
677
|
|
|
* |
678
|
|
|
* The $list passed needs to contain the same dataclass as $this |
679
|
|
|
* |
680
|
|
|
* @param DataList $list |
681
|
|
|
* @return static |
682
|
|
|
* @throws InvalidArgumentException |
683
|
|
|
*/ |
684
|
|
|
public function subtract(DataList $list) |
685
|
|
|
{ |
686
|
|
|
if ($this->dataClass() != $list->dataClass()) { |
687
|
|
|
throw new InvalidArgumentException('The list passed must have the same dataclass as this class'); |
688
|
|
|
} |
689
|
|
|
|
690
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($list) { |
691
|
|
|
$query->subtract($list->dataQuery()); |
692
|
|
|
}); |
693
|
|
|
} |
694
|
|
|
|
695
|
|
|
/** |
696
|
|
|
* Return a new DataList instance with an inner join clause added to this list's query. |
697
|
|
|
* |
698
|
|
|
* @param string $table Table name (unquoted and as escaped SQL) |
699
|
|
|
* @param string $onClause Escaped SQL statement, e.g. '"Table1"."ID" = "Table2"."ID"' |
700
|
|
|
* @param string $alias - if you want this table to be aliased under another name |
701
|
|
|
* @param int $order A numerical index to control the order that joins are added to the query; lower order values |
702
|
|
|
* will cause the query to appear first. The default is 20, and joins created automatically by the |
703
|
|
|
* ORM have a value of 10. |
704
|
|
|
* @param array $parameters Any additional parameters if the join is a parameterised subquery |
705
|
|
|
* @return static |
706
|
|
|
*/ |
707
|
|
|
public function innerJoin($table, $onClause, $alias = null, $order = 20, $parameters = array()) |
708
|
|
|
{ |
709
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($table, $onClause, $alias, $order, $parameters) { |
710
|
|
|
$query->innerJoin($table, $onClause, $alias, $order, $parameters); |
711
|
|
|
}); |
712
|
|
|
} |
713
|
|
|
|
714
|
|
|
/** |
715
|
|
|
* Return a new DataList instance with a left join clause added to this list's query. |
716
|
|
|
* |
717
|
|
|
* @param string $table Table name (unquoted and as escaped SQL) |
718
|
|
|
* @param string $onClause Escaped SQL statement, e.g. '"Table1"."ID" = "Table2"."ID"' |
719
|
|
|
* @param string $alias - if you want this table to be aliased under another name |
720
|
|
|
* @param int $order A numerical index to control the order that joins are added to the query; lower order values |
721
|
|
|
* will cause the query to appear first. The default is 20, and joins created automatically by the |
722
|
|
|
* ORM have a value of 10. |
723
|
|
|
* @param array $parameters Any additional parameters if the join is a parameterised subquery |
724
|
|
|
* @return static |
725
|
|
|
*/ |
726
|
|
|
public function leftJoin($table, $onClause, $alias = null, $order = 20, $parameters = array()) |
727
|
|
|
{ |
728
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($table, $onClause, $alias, $order, $parameters) { |
729
|
|
|
$query->leftJoin($table, $onClause, $alias, $order, $parameters); |
730
|
|
|
}); |
731
|
|
|
} |
732
|
|
|
|
733
|
|
|
/** |
734
|
|
|
* Return an array of the actual items that this DataList contains at this stage. |
735
|
|
|
* This is when the query is actually executed. |
736
|
|
|
* |
737
|
|
|
* @return array |
738
|
|
|
*/ |
739
|
|
|
public function toArray() |
740
|
|
|
{ |
741
|
|
|
$query = $this->dataQuery->query(); |
742
|
|
|
$rows = $query->execute(); |
743
|
|
|
$results = array(); |
744
|
|
|
|
745
|
|
|
foreach ($rows as $row) { |
746
|
|
|
$results[] = $this->createDataObject($row); |
747
|
|
|
} |
748
|
|
|
|
749
|
|
|
return $results; |
750
|
|
|
} |
751
|
|
|
|
752
|
|
|
/** |
753
|
|
|
* Return this list as an array and every object it as an sub array as well |
754
|
|
|
* |
755
|
|
|
* @return array |
756
|
|
|
*/ |
757
|
|
|
public function toNestedArray() |
758
|
|
|
{ |
759
|
|
|
$result = array(); |
760
|
|
|
|
761
|
|
|
foreach ($this as $item) { |
762
|
|
|
$result[] = $item->toMap(); |
763
|
|
|
} |
764
|
|
|
|
765
|
|
|
return $result; |
766
|
|
|
} |
767
|
|
|
|
768
|
|
|
/** |
769
|
|
|
* Walks the list using the specified callback |
770
|
|
|
* |
771
|
|
|
* @param callable $callback |
772
|
|
|
* @return $this |
773
|
|
|
*/ |
774
|
|
|
public function each($callback) |
775
|
|
|
{ |
776
|
|
|
foreach ($this as $row) { |
777
|
|
|
$callback($row); |
778
|
|
|
} |
779
|
|
|
|
780
|
|
|
return $this; |
781
|
|
|
} |
782
|
|
|
|
783
|
|
|
public function debug() |
784
|
|
|
{ |
785
|
|
|
$val = "<h2>" . static::class . "</h2><ul>"; |
786
|
|
|
foreach ($this->toNestedArray() as $item) { |
787
|
|
|
$val .= "<li style=\"list-style-type: disc; margin-left: 20px\">" . Debug::text($item) . "</li>"; |
788
|
|
|
} |
789
|
|
|
$val .= "</ul>"; |
790
|
|
|
return $val; |
791
|
|
|
} |
792
|
|
|
|
793
|
|
|
/** |
794
|
|
|
* Returns a map of this list |
795
|
|
|
* |
796
|
|
|
* @param string $keyField - the 'key' field of the result array |
797
|
|
|
* @param string $titleField - the value field of the result array |
798
|
|
|
* @return Map |
799
|
|
|
*/ |
800
|
|
|
public function map($keyField = 'ID', $titleField = 'Title') |
801
|
|
|
{ |
802
|
|
|
return new Map($this, $keyField, $titleField); |
803
|
|
|
} |
804
|
|
|
|
805
|
|
|
/** |
806
|
|
|
* Create a DataObject from the given SQL row |
807
|
|
|
* |
808
|
|
|
* @param array $row |
809
|
|
|
* @return DataObject |
810
|
|
|
*/ |
811
|
|
|
public function createDataObject($row) |
812
|
|
|
{ |
813
|
|
|
$class = $this->dataClass; |
814
|
|
|
|
815
|
|
|
if (empty($row['ClassName'])) { |
816
|
|
|
$row['ClassName'] = $class; |
817
|
|
|
} |
818
|
|
|
|
819
|
|
|
// Failover from RecordClassName to ClassName |
820
|
|
|
if (empty($row['RecordClassName'])) { |
821
|
|
|
$row['RecordClassName'] = $row['ClassName']; |
822
|
|
|
} |
823
|
|
|
|
824
|
|
|
// Instantiate the class mentioned in RecordClassName only if it exists, otherwise default to $this->dataClass |
825
|
|
|
if (class_exists($row['RecordClassName'])) { |
826
|
|
|
$class = $row['RecordClassName']; |
827
|
|
|
} |
828
|
|
|
|
829
|
|
|
$item = Injector::inst()->create($class, $row, false, $this->getQueryParams()); |
830
|
|
|
|
831
|
|
|
return $item; |
832
|
|
|
} |
833
|
|
|
|
834
|
|
|
/** |
835
|
|
|
* Get query parameters for this list. |
836
|
|
|
* These values will be assigned as query parameters to newly created objects from this list. |
837
|
|
|
* |
838
|
|
|
* @return array |
839
|
|
|
*/ |
840
|
|
|
public function getQueryParams() |
841
|
|
|
{ |
842
|
|
|
return $this->dataQuery()->getQueryParams(); |
843
|
|
|
} |
844
|
|
|
|
845
|
|
|
/** |
846
|
|
|
* Returns an Iterator for this DataList. |
847
|
|
|
* This function allows you to use DataLists in foreach loops |
848
|
|
|
* |
849
|
|
|
* @return Generator |
|
|
|
|
850
|
|
|
*/ |
851
|
|
|
public function getIterator() |
852
|
|
|
{ |
853
|
|
|
foreach ($this->getFinalisedQuery() as $row) { |
854
|
|
|
yield $this->createDataObject($row); |
855
|
|
|
} |
856
|
|
|
|
857
|
|
|
// Re-set the finaliseQuery so that it can be re-executed |
858
|
|
|
$this->finalisedQuery = null; |
859
|
|
|
} |
860
|
|
|
|
861
|
|
|
/** |
862
|
|
|
* Returns the Query result for this DataList. Repeated calls will return |
863
|
|
|
* a cached result, unless the DataQuery underlying this list has been |
864
|
|
|
* modified |
865
|
|
|
* |
866
|
|
|
* @return SilverStripe\ORM\Connect\Query |
867
|
|
|
* @internal This API may change in minor releases |
868
|
|
|
*/ |
869
|
|
|
protected function getFinalisedQuery() |
870
|
|
|
{ |
871
|
|
|
if (!$this->finalisedQuery) { |
872
|
|
|
$this->finalisedQuery = $this->dataQuery->query()->execute(); |
|
|
|
|
873
|
|
|
} |
874
|
|
|
|
875
|
|
|
return $this->finalisedQuery; |
876
|
|
|
} |
877
|
|
|
|
878
|
|
|
/** |
879
|
|
|
* Return the number of items in this DataList |
880
|
|
|
* |
881
|
|
|
* @return int |
882
|
|
|
*/ |
883
|
|
|
public function count() |
884
|
|
|
{ |
885
|
|
|
if ($this->finalisedQuery) { |
886
|
|
|
return $this->finalisedQuery->numRecords(); |
887
|
|
|
} |
888
|
|
|
|
889
|
|
|
return $this->dataQuery->count(); |
890
|
|
|
} |
891
|
|
|
|
892
|
|
|
/** |
893
|
|
|
* Return the maximum value of the given field in this DataList |
894
|
|
|
* |
895
|
|
|
* @param string $fieldName |
896
|
|
|
* @return mixed |
897
|
|
|
*/ |
898
|
|
|
public function max($fieldName) |
899
|
|
|
{ |
900
|
|
|
return $this->dataQuery->max($fieldName); |
901
|
|
|
} |
902
|
|
|
|
903
|
|
|
/** |
904
|
|
|
* Return the minimum value of the given field in this DataList |
905
|
|
|
* |
906
|
|
|
* @param string $fieldName |
907
|
|
|
* @return mixed |
908
|
|
|
*/ |
909
|
|
|
public function min($fieldName) |
910
|
|
|
{ |
911
|
|
|
return $this->dataQuery->min($fieldName); |
912
|
|
|
} |
913
|
|
|
|
914
|
|
|
/** |
915
|
|
|
* Return the average value of the given field in this DataList |
916
|
|
|
* |
917
|
|
|
* @param string $fieldName |
918
|
|
|
* @return mixed |
919
|
|
|
*/ |
920
|
|
|
public function avg($fieldName) |
921
|
|
|
{ |
922
|
|
|
return $this->dataQuery->avg($fieldName); |
923
|
|
|
} |
924
|
|
|
|
925
|
|
|
/** |
926
|
|
|
* Return the sum of the values of the given field in this DataList |
927
|
|
|
* |
928
|
|
|
* @param string $fieldName |
929
|
|
|
* @return mixed |
930
|
|
|
*/ |
931
|
|
|
public function sum($fieldName) |
932
|
|
|
{ |
933
|
|
|
return $this->dataQuery->sum($fieldName); |
934
|
|
|
} |
935
|
|
|
|
936
|
|
|
|
937
|
|
|
/** |
938
|
|
|
* Returns the first item in this DataList |
939
|
|
|
* |
940
|
|
|
* @return DataObject |
941
|
|
|
*/ |
942
|
|
|
public function first() |
943
|
|
|
{ |
944
|
|
|
foreach ($this->dataQuery->firstRow()->execute() as $row) { |
945
|
|
|
return $this->createDataObject($row); |
946
|
|
|
} |
947
|
|
|
return null; |
948
|
|
|
} |
949
|
|
|
|
950
|
|
|
/** |
951
|
|
|
* Returns the last item in this DataList |
952
|
|
|
* |
953
|
|
|
* @return DataObject |
954
|
|
|
*/ |
955
|
|
|
public function last() |
956
|
|
|
{ |
957
|
|
|
foreach ($this->dataQuery->lastRow()->execute() as $row) { |
958
|
|
|
return $this->createDataObject($row); |
959
|
|
|
} |
960
|
|
|
return null; |
961
|
|
|
} |
962
|
|
|
|
963
|
|
|
/** |
964
|
|
|
* Returns true if this DataList has items |
965
|
|
|
* |
966
|
|
|
* @return bool |
967
|
|
|
*/ |
968
|
|
|
public function exists() |
969
|
|
|
{ |
970
|
|
|
return $this->count() > 0; |
971
|
|
|
} |
972
|
|
|
|
973
|
|
|
/** |
974
|
|
|
* Find the first DataObject of this DataList where the given key = value |
975
|
|
|
* |
976
|
|
|
* @param string $key |
977
|
|
|
* @param string $value |
978
|
|
|
* @return DataObject|null |
979
|
|
|
*/ |
980
|
|
|
public function find($key, $value) |
981
|
|
|
{ |
982
|
|
|
return $this->filter($key, $value)->first(); |
983
|
|
|
} |
984
|
|
|
|
985
|
|
|
/** |
986
|
|
|
* Restrict the columns to fetch into this DataList |
987
|
|
|
* |
988
|
|
|
* @param array $queriedColumns |
989
|
|
|
* @return static |
990
|
|
|
*/ |
991
|
|
|
public function setQueriedColumns($queriedColumns) |
992
|
|
|
{ |
993
|
|
|
return $this->alterDataQuery(function (DataQuery $query) use ($queriedColumns) { |
994
|
|
|
$query->setQueriedColumns($queriedColumns); |
995
|
|
|
}); |
996
|
|
|
} |
997
|
|
|
|
998
|
|
|
/** |
999
|
|
|
* Filter this list to only contain the given Primary IDs |
1000
|
|
|
* |
1001
|
|
|
* @param array $ids Array of integers |
1002
|
|
|
* @throws InvalidArgumentException |
1003
|
|
|
* @return $this |
1004
|
|
|
*/ |
1005
|
|
|
public function byIDs($ids) |
1006
|
|
|
{ |
1007
|
|
|
$intIDs = array(); |
1008
|
|
|
foreach ($ids as $id) { |
1009
|
|
|
if (!is_numeric($id)) { |
1010
|
|
|
throw new InvalidArgumentException( |
1011
|
|
|
'Invalid value passed to byIDs() in param array. All params have to be numeric or of type Integer.' |
1012
|
|
|
); |
1013
|
|
|
} |
1014
|
|
|
$intIDs[] = intval($id, 10); |
1015
|
|
|
} |
1016
|
|
|
|
1017
|
|
|
return $this->filter('ID', $intIDs); |
1018
|
|
|
} |
1019
|
|
|
|
1020
|
|
|
/** |
1021
|
|
|
* Return the first DataObject with the given ID |
1022
|
|
|
* |
1023
|
|
|
* @param int $id |
1024
|
|
|
* @return DataObject |
1025
|
|
|
* @throws InvalidArgumentException |
1026
|
|
|
*/ |
1027
|
|
|
public function byID($id) |
1028
|
|
|
{ |
1029
|
|
|
if (!is_numeric($id)) { |
|
|
|
|
1030
|
|
|
throw new InvalidArgumentException( |
1031
|
|
|
'Incorrect param type for $id passed to byID(). Numeric value is expected.' |
1032
|
|
|
); |
1033
|
|
|
} |
1034
|
|
|
return $this->filter('ID', intval($id, 10))->first(); |
1035
|
|
|
} |
1036
|
|
|
|
1037
|
|
|
/** |
1038
|
|
|
* Returns an array of a single field value for all items in the list. |
1039
|
|
|
* |
1040
|
|
|
* @param string $colName |
1041
|
|
|
* @return array |
1042
|
|
|
*/ |
1043
|
|
|
public function column($colName = "ID") |
1044
|
|
|
{ |
1045
|
|
|
if ($this->finalisedQuery) { |
1046
|
|
|
return $this->finalisedQuery->column($colName); |
1047
|
|
|
} |
1048
|
|
|
|
1049
|
|
|
return $this->dataQuery->column($colName); |
1050
|
|
|
} |
1051
|
|
|
|
1052
|
|
|
// Member altering methods |
1053
|
|
|
|
1054
|
|
|
/** |
1055
|
|
|
* Sets the ComponentSet to be the given ID list. |
1056
|
|
|
* Records will be added and deleted as appropriate. |
1057
|
|
|
* |
1058
|
|
|
* @param array $idList List of IDs. |
1059
|
|
|
*/ |
1060
|
|
|
public function setByIDList($idList) |
1061
|
|
|
{ |
1062
|
|
|
$has = array(); |
1063
|
|
|
|
1064
|
|
|
// Index current data |
1065
|
|
|
foreach ($this->column() as $id) { |
1066
|
|
|
$has[$id] = true; |
1067
|
|
|
} |
1068
|
|
|
|
1069
|
|
|
// Keep track of items to delete |
1070
|
|
|
$itemsToDelete = $has; |
1071
|
|
|
|
1072
|
|
|
// add items in the list |
1073
|
|
|
// $id is the database ID of the record |
1074
|
|
|
if ($idList) { |
1075
|
|
|
foreach ($idList as $id) { |
1076
|
|
|
unset($itemsToDelete[$id]); |
1077
|
|
|
if ($id && !isset($has[$id])) { |
1078
|
|
|
$this->add($id); |
1079
|
|
|
} |
1080
|
|
|
} |
1081
|
|
|
} |
1082
|
|
|
|
1083
|
|
|
// Remove any items that haven't been mentioned |
1084
|
|
|
$this->removeMany(array_keys($itemsToDelete)); |
1085
|
|
|
} |
1086
|
|
|
|
1087
|
|
|
/** |
1088
|
|
|
* Returns an array with both the keys and values set to the IDs of the records in this list. |
1089
|
|
|
* Does not respect sort order. Use ->column("ID") to get an ID list with the current sort. |
1090
|
|
|
* |
1091
|
|
|
* @return array |
1092
|
|
|
*/ |
1093
|
|
|
public function getIDList() |
1094
|
|
|
{ |
1095
|
|
|
$ids = $this->column("ID"); |
1096
|
|
|
return $ids ? array_combine($ids, $ids) : array(); |
1097
|
|
|
} |
1098
|
|
|
|
1099
|
|
|
/** |
1100
|
|
|
* Returns a HasManyList or ManyMany list representing the querying of a relation across all |
1101
|
|
|
* objects in this data list. For it to work, the relation must be defined on the data class |
1102
|
|
|
* that you used to create this DataList. |
1103
|
|
|
* |
1104
|
|
|
* Example: Get members from all Groups: |
1105
|
|
|
* |
1106
|
|
|
* DataList::Create("Group")->relation("Members") |
1107
|
|
|
* |
1108
|
|
|
* @param string $relationName |
1109
|
|
|
* @return HasManyList|ManyManyList |
1110
|
|
|
*/ |
1111
|
|
|
public function relation($relationName) |
1112
|
|
|
{ |
1113
|
|
|
$ids = $this->column('ID'); |
1114
|
|
|
$singleton = DataObject::singleton($this->dataClass); |
1115
|
|
|
/** @var HasManyList|ManyManyList $relation */ |
1116
|
|
|
$relation = $singleton->$relationName($ids); |
1117
|
|
|
return $relation; |
1118
|
|
|
} |
1119
|
|
|
|
1120
|
|
|
public function dbObject($fieldName) |
1121
|
|
|
{ |
1122
|
|
|
return singleton($this->dataClass)->dbObject($fieldName); |
1123
|
|
|
} |
1124
|
|
|
|
1125
|
|
|
/** |
1126
|
|
|
* Add a number of items to the component set. |
1127
|
|
|
* |
1128
|
|
|
* @param array $items Items to add, as either DataObjects or IDs. |
1129
|
|
|
* @return $this |
1130
|
|
|
*/ |
1131
|
|
|
public function addMany($items) |
1132
|
|
|
{ |
1133
|
|
|
foreach ($items as $item) { |
1134
|
|
|
$this->add($item); |
1135
|
|
|
} |
1136
|
|
|
return $this; |
1137
|
|
|
} |
1138
|
|
|
|
1139
|
|
|
/** |
1140
|
|
|
* Remove the items from this list with the given IDs |
1141
|
|
|
* |
1142
|
|
|
* @param array $idList |
1143
|
|
|
* @return $this |
1144
|
|
|
*/ |
1145
|
|
|
public function removeMany($idList) |
1146
|
|
|
{ |
1147
|
|
|
foreach ($idList as $id) { |
1148
|
|
|
$this->removeByID($id); |
1149
|
|
|
} |
1150
|
|
|
return $this; |
1151
|
|
|
} |
1152
|
|
|
|
1153
|
|
|
/** |
1154
|
|
|
* Remove every element in this DataList matching the given $filter. |
1155
|
|
|
* |
1156
|
|
|
* @param string|array $filter - a sql type where filter |
1157
|
|
|
* @return $this |
1158
|
|
|
*/ |
1159
|
|
|
public function removeByFilter($filter) |
1160
|
|
|
{ |
1161
|
|
|
foreach ($this->where($filter) as $item) { |
1162
|
|
|
$this->remove($item); |
1163
|
|
|
} |
1164
|
|
|
return $this; |
1165
|
|
|
} |
1166
|
|
|
|
1167
|
|
|
/** |
1168
|
|
|
* Remove every element in this DataList. |
1169
|
|
|
* |
1170
|
|
|
* @return $this |
1171
|
|
|
*/ |
1172
|
|
|
public function removeAll() |
1173
|
|
|
{ |
1174
|
|
|
foreach ($this as $item) { |
1175
|
|
|
$this->remove($item); |
1176
|
|
|
} |
1177
|
|
|
return $this; |
1178
|
|
|
} |
1179
|
|
|
|
1180
|
|
|
/** |
1181
|
|
|
* This method are overloaded by HasManyList and ManyMany list to perform more sophisticated |
1182
|
|
|
* list manipulation |
1183
|
|
|
* |
1184
|
|
|
* @param mixed $item |
1185
|
|
|
* @param array|null $extraFields Any extra fields, if supported by this list |
1186
|
|
|
*/ |
1187
|
|
|
public function add($item) |
1188
|
|
|
{ |
1189
|
|
|
// Nothing needs to happen by default |
1190
|
|
|
// TO DO: If a filter is given to this data list then |
1191
|
|
|
} |
1192
|
|
|
|
1193
|
|
|
/** |
1194
|
|
|
* Return a new item to add to this DataList. |
1195
|
|
|
* |
1196
|
|
|
* @todo This doesn't factor in filters. |
1197
|
|
|
* @param array $initialFields |
1198
|
|
|
* @return DataObject |
1199
|
|
|
*/ |
1200
|
|
|
public function newObject($initialFields = null) |
1201
|
|
|
{ |
1202
|
|
|
$class = $this->dataClass; |
1203
|
|
|
return Injector::inst()->create($class, $initialFields, false); |
1204
|
|
|
} |
1205
|
|
|
|
1206
|
|
|
/** |
1207
|
|
|
* Remove this item by deleting it |
1208
|
|
|
* |
1209
|
|
|
* @param DataObject $item |
1210
|
|
|
* @todo Allow for amendment of this behaviour - for example, we can remove an item from |
1211
|
|
|
* an "ActiveItems" DataList by chaning the status to inactive. |
1212
|
|
|
*/ |
1213
|
|
|
public function remove($item) |
1214
|
|
|
{ |
1215
|
|
|
// By default, we remove an item from a DataList by deleting it. |
1216
|
|
|
$this->removeByID($item->ID); |
1217
|
|
|
} |
1218
|
|
|
|
1219
|
|
|
/** |
1220
|
|
|
* Remove an item from this DataList by ID |
1221
|
|
|
* |
1222
|
|
|
* @param int $itemID The primary ID |
1223
|
|
|
*/ |
1224
|
|
|
public function removeByID($itemID) |
1225
|
|
|
{ |
1226
|
|
|
$item = $this->byID($itemID); |
1227
|
|
|
|
1228
|
|
|
if ($item) { |
1229
|
|
|
$item->delete(); |
1230
|
|
|
} |
1231
|
|
|
} |
1232
|
|
|
|
1233
|
|
|
/** |
1234
|
|
|
* Reverses a list of items. |
1235
|
|
|
* |
1236
|
|
|
* @return static |
1237
|
|
|
*/ |
1238
|
|
|
public function reverse() |
1239
|
|
|
{ |
1240
|
|
|
return $this->alterDataQuery(function (DataQuery $query) { |
1241
|
|
|
$query->reverseSort(); |
1242
|
|
|
}); |
1243
|
|
|
} |
1244
|
|
|
|
1245
|
|
|
/** |
1246
|
|
|
* Returns whether an item with $key exists |
1247
|
|
|
* |
1248
|
|
|
* @param mixed $key |
1249
|
|
|
* @return bool |
1250
|
|
|
*/ |
1251
|
|
|
public function offsetExists($key) |
1252
|
|
|
{ |
1253
|
|
|
return ($this->limit(1, $key)->first() != null); |
1254
|
|
|
} |
1255
|
|
|
|
1256
|
|
|
/** |
1257
|
|
|
* Returns item stored in list with index $key |
1258
|
|
|
* |
1259
|
|
|
* @param mixed $key |
1260
|
|
|
* @return DataObject |
1261
|
|
|
*/ |
1262
|
|
|
public function offsetGet($key) |
1263
|
|
|
{ |
1264
|
|
|
return $this->limit(1, $key)->first(); |
1265
|
|
|
} |
1266
|
|
|
|
1267
|
|
|
/** |
1268
|
|
|
* Set an item with the key in $key |
1269
|
|
|
* |
1270
|
|
|
* @param mixed $key |
1271
|
|
|
* @param mixed $value |
1272
|
|
|
*/ |
1273
|
|
|
public function offsetSet($key, $value) |
1274
|
|
|
{ |
1275
|
|
|
user_error("Can't alter items in a DataList using array-access", E_USER_ERROR); |
1276
|
|
|
} |
1277
|
|
|
|
1278
|
|
|
/** |
1279
|
|
|
* Unset an item with the key in $key |
1280
|
|
|
* |
1281
|
|
|
* @param mixed $key |
1282
|
|
|
*/ |
1283
|
|
|
public function offsetUnset($key) |
1284
|
|
|
{ |
1285
|
|
|
user_error("Can't alter items in a DataList using array-access", E_USER_ERROR); |
1286
|
|
|
} |
1287
|
|
|
} |
1288
|
|
|
|