-
Notifications
You must be signed in to change notification settings - Fork 821
/
GridField.php
830 lines (725 loc) · 22.4 KB
/
GridField.php
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
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
<?php
/**
* Displays a {@link SS_List} in a grid format.
*
* GridField is a field that takes an SS_List and displays it in an table with rows
* and columns. It reminds of the old TableFields but works with SS_List types
* and only loads the necessary rows from the list.
*
* The minimum configuration is to pass in name and title of the field and a
* SS_List.
*
* <code>
* $gridField = new GridField('ExampleGrid', 'Example grid', new DataList('Page'));
* </code>
*
* @see SS_List
*
* @package framework
* @subpackage fields-relational
*/
class GridField extends FormField {
/**
*
* @var array
*/
public static $allowed_actions = array(
'index',
'gridFieldAlterAction'
);
/**
* The datasource
* @var SS_List
*/
protected $list = null;
/**
* The classname of the DataObject that the GridField will display. Defaults to the value of $this->list->dataClass
* @var string
*/
protected $modelClassName = '';
/**
* the current state of the GridField
* @var GridState
*/
protected $state = null;
/**
*
* @var GridFieldConfig
*/
protected $config = null;
/**
* The components list
*/
protected $components = array();
/**
* Internal dispatcher for column handlers.
* Keys are column names and values are GridField_ColumnProvider objects
*
* @var array
*/
protected $columnDispatch = null;
/**
* Map of callbacks for custom data fields
*/
protected $customDataFields = array();
protected $name = '';
/**
* Creates a new GridField field
*
* @param string $name
* @param string $title
* @param SS_List $dataList
* @param GridFieldConfig $config
*/
public function __construct($name, $title = null, SS_List $dataList = null, GridFieldConfig $config = null) {
parent::__construct($name, $title, null);
$this->name = $name;
if($dataList) {
$this->setList($dataList);
}
$this->setConfig($config ?: GridFieldConfig_Base::create());
$this->config->addComponent(new GridState_Component());
$this->state = new GridState($this);
$this->addExtraClass('ss-gridfield');
}
public function index($request) {
return $this->gridFieldAlterAction(array(), $this->getForm(), $request);
}
/**
* Set the modelClass (dataobject) that this field will get it column headers from.
* If no $displayFields has been set, the displayfields will be fetched from
* this modelclass $summary_fields
*
* @param string $modelClassName
* @see GridFieldDataColumns::getDisplayFields()
*/
public function setModelClass($modelClassName) {
$this->modelClassName = $modelClassName;
return $this;
}
/**
* Returns a dataclass that is a DataObject type that this GridField should look like.
*
* @throws Exception
* @return string
*/
public function getModelClass() {
if ($this->modelClassName) return $this->modelClassName;
if ($this->list && method_exists($this->list, 'dataClass')) {
$class = $this->list->dataClass();
if($class) return $class;
}
throw new LogicException('GridField doesn\'t have a modelClassName,'
. ' so it doesn\'t know the columns of this grid.');
}
/**
* Get the GridFieldConfig
*
* @return GridFieldConfig
*/
public function getConfig() {
return $this->config;
}
/**
* @param GridFieldConfig $config
* @return GridField
*/
public function setConfig(GridFieldConfig $config) {
$this->config = $config;
return $this;
}
public function getComponents() {
return $this->config->getComponents();
}
/**
* Cast a arbitrary value with the help of a castingDefintion
*
* @param $value
* @param $castingDefinition
* @todo refactor this into GridFieldComponent
*/
public function getCastedValue($value, $castingDefinition) {
if(is_array($castingDefinition)) {
$castingParams = $castingDefinition;
array_shift($castingParams);
$castingDefinition = array_shift($castingDefinition);
} else {
$castingParams = array();
}
if(strpos($castingDefinition,'->') === false) {
$castingFieldType = $castingDefinition;
$castingField = DBField::create_field($castingFieldType, $value);
$value = call_user_func_array(array($castingField,'XML'),$castingParams);
} else {
$fieldTypeParts = explode('->', $castingDefinition);
$castingFieldType = $fieldTypeParts[0];
$castingMethod = $fieldTypeParts[1];
$castingField = DBField::create_field($castingFieldType, $value);
$value = call_user_func_array(array($castingField,$castingMethod),$castingParams);
}
return $value;
}
/**
* Set the datasource
*
* @param SS_List $list
*/
public function setList(SS_List $list) {
$this->list = $list;
return $this;
}
/**
* Get the datasource
*
* @return SS_List
*/
public function getList() {
return $this->list;
}
/**
* Get the datasource after applying the {@link GridField_DataManipulator}s to it.
*
* @return SS_List
*/
public function getManipulatedList() {
$list = $this->getList();
foreach($this->getComponents() as $item) {
if($item instanceof GridField_DataManipulator) {
$list = $item->getManipulatedData($this, $list);
}
}
return $list;
}
/**
* Get the current GridState_Data or the GridState
*
* @param bool $getData - flag for returning the GridState_Data or the GridState
* @return GridState_data|GridState
*/
public function getState($getData=true) {
if($getData) {
return $this->state->getData();
}
return $this->state;
}
/**
* Returns the whole gridfield rendered with all the attached components
*
* @return string
*/
public function FieldHolder($properties = array()) {
Requirements::css(THIRDPARTY_DIR . '/jquery-ui-themes/smoothness/jquery-ui.css');
Requirements::css(FRAMEWORK_DIR . '/css/GridField.css');
Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
Requirements::javascript(FRAMEWORK_DIR . '/thirdparty/jquery-ui/jquery-ui.js');
Requirements::javascript(THIRDPARTY_DIR . '/json-js/json2.js');
Requirements::javascript(FRAMEWORK_DIR . '/javascript/i18n.js');
Requirements::add_i18n_javascript(FRAMEWORK_DIR . '/javascript/lang');
Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
Requirements::javascript(FRAMEWORK_DIR . '/javascript/GridField.js');
// Get columns
$columns = $this->getColumns();
// Get data
$list = $this->getManipulatedList();
// Render headers, footers, etc
$content = array(
"before" => "",
"after" => "",
"header" => "",
"footer" => "",
);
foreach($this->getComponents() as $item) {
if($item instanceof GridField_HTMLProvider) {
$fragments = $item->getHTMLFragments($this);
if($fragments) foreach($fragments as $k => $v) {
$k = strtolower($k);
if(!isset($content[$k])) $content[$k] = "";
$content[$k] .= $v . "\n";
}
}
}
foreach($content as $k => $v) {
$content[$k] = trim($v);
}
// Replace custom fragments and check which fragments are defined
// Nested dependencies are handled by deferring the rendering of any content item that
// Circular dependencies are detected by disallowing any item to be deferred more than 5 times
// It's a fairly crude algorithm but it works
$fragmentDefined = array('header' => true, 'footer' => true, 'before' => true, 'after' => true);
reset($content);
while(list($k,$v) = each($content)) {
if(preg_match_all('/\$DefineFragment\(([a-z0-9\-_]+)\)/i', $v, $matches)) {
foreach($matches[1] as $match) {
$fragmentName = strtolower($match);
$fragmentDefined[$fragmentName] = true;
$fragment = isset($content[$fragmentName]) ? $content[$fragmentName] : "";
// If the fragment still has a fragment definition in it, when we should defer this item until
// later.
if(preg_match('/\$DefineFragment\(([a-z0-9\-_]+)\)/i', $fragment, $matches)) {
// If we've already deferred this fragment, then we have a circular dependency
if(isset($fragmentDeferred[$k]) && $fragmentDeferred[$k] > 5) {
throw new LogicException("GridField HTML fragment '$fragmentName' and '$matches[1]' " .
"appear to have a circular dependency.");
}
// Otherwise we can push to the end of the content array
unset($content[$k]);
$content[$k] = $v;
if(!isset($fragmentDeferred[$k])) {
$fragmentDeferred[$k] = 1;
} else {
$fragmentDeferred[$k]++;
}
break;
} else {
$content[$k] = preg_replace('/\$DefineFragment\(' . $fragmentName . '\)/i', $fragment,
$content[$k]);
}
}
}
}
// Check for any undefined fragments, and if so throw an exception
// While we're at it, trim whitespace off the elements
foreach($content as $k => $v) {
if(empty($fragmentDefined[$k])) {
throw new LogicException("GridField HTML fragment '$k' was given content,"
. " but not defined. Perhaps there is a supporting GridField component you need to add?");
}
}
$total = $list->count();
if($total > 0) {
$rows = array();
foreach($list as $idx => $record) {
if(!$record->canView()) {
continue;
}
$rowContent = '';
foreach($this->getColumns() as $column) {
$colContent = $this->getColumnContent($record, $column);
// A return value of null means this columns should be skipped altogether.
if($colContent === null) continue;
$colAttributes = $this->getColumnAttributes($record, $column);
$rowContent .= FormField::create_tag('td', $colAttributes, $colContent);
}
$classes = array('ss-gridfield-item');
if ($idx == 0) $classes[] = 'first';
if ($idx == $total-1) $classes[] = 'last';
$classes[] = ($idx % 2) ? 'even' : 'odd';
$row = FormField::create_tag(
'tr',
array(
"class" => implode(' ', $classes),
'data-id' => $record->ID,
// TODO Allow per-row customization similar to GridFieldDataColumns
'data-class' => $record->ClassName,
),
$rowContent
);
$rows[] = $row;
}
$content['body'] = implode("\n", $rows);
}
// Display a message when the grid field is empty
if(!(isset($content['body']) && $content['body'])) {
$content['body'] = FormField::create_tag(
'tr',
array("class" => 'ss-gridfield-item ss-gridfield-no-items'),
FormField::create_tag(
'td',
array('colspan' => count($columns)),
_t('GridField.NoItemsFound', 'No items found')
)
);
}
// Turn into the relevant parts of a table
$head = $content['header']
? FormField::create_tag('thead', array(), $content['header'])
: '';
$body = $content['body']
? FormField::create_tag('tbody', array('class' => 'ss-gridfield-items'), $content['body'])
: '';
$foot = $content['footer']
? FormField::create_tag('tfoot', array(), $content['footer'])
: '';
$this->addExtraClass('ss-gridfield field');
$attrs = array_diff_key(
$this->getAttributes(),
array('value' => false, 'type' => false, 'name' => false)
);
$attrs['data-name'] = $this->getName();
$tableAttrs = array(
'id' => isset($this->id) ? $this->id : null,
'class' => 'ss-gridfield-table',
'cellpadding' => '0',
'cellspacing' => '0'
);
return
FormField::create_tag('fieldset', $attrs,
$content['before'] .
FormField::create_tag('table', $tableAttrs, $head."\n".$foot."\n".$body) .
$content['after']
);
}
public function Field($properties = array()) {
return $this->FieldHolder($properties);
}
public function getAttributes() {
return array_merge(parent::getAttributes(), array('data-url' => $this->Link()));
}
/**
* Get the columns of this GridField, they are provided by attached GridField_ColumnProvider
*
* @return array
*/
public function getColumns() {
// Get column list
$columns = array();
foreach($this->getComponents() as $item) {
if($item instanceof GridField_ColumnProvider) {
$item->augmentColumns($this, $columns);
}
}
return $columns;
}
/**
* Get the value from a column
*
* @param DataObject $record
* @param string $column
* @return string
* @throws InvalidArgumentException
*/
public function getColumnContent($record, $column) {
// Build the column dispatch
if(!$this->columnDispatch) {
$this->buildColumnDispatch();
}
if(!empty($this->columnDispatch[$column])) {
$content = "";
foreach($this->columnDispatch[$column] as $handler) {
$content .= $handler->getColumnContent($this, $record, $column);
}
return $content;
} else {
throw new InvalidArgumentException("Bad column '$column'");
}
}
/**
* Add additional calculated data fields to be used on this GridField
* @param array $fields a map of fieldname to callback. The callback will bed passed the record as an argument.
*/
public function addDataFields($fields) {
if($this->customDataFields) $this->customDataFields = array_merge($this->customDataFields, $fields);
else $this->customDataFields = $fields;
}
/**
* Get the value of a named field on the given record.
* Use of this method ensures that any special rules around the data for this gridfield are followed.
*/
public function getDataFieldValue($record, $fieldName) {
// Custom callbacks
if(isset($this->customDataFields[$fieldName])) {
$callback = $this->customDataFields[$fieldName];
return $callback($record);
}
// Default implementation
if($record->hasMethod('relField')) {
return $record->relField($fieldName);
} elseif($record->hasMethod($fieldName)) {
return $record->$fieldName();
} else {
return $record->$fieldName;
}
}
/**
* Get extra columns attributes used as HTML attributes
*
* @param DataObject $record
* @param string $column
* @return array
* @throws LogicException
* @throws InvalidArgumentException
*/
public function getColumnAttributes($record, $column) {
// Build the column dispatch
if(!$this->columnDispatch) {
$this->buildColumnDispatch();
}
if(!empty($this->columnDispatch[$column])) {
$attrs = array();
foreach($this->columnDispatch[$column] as $handler) {
$column_attrs = $handler->getColumnAttributes($this, $record, $column);
if(is_array($column_attrs)) {
$attrs = array_merge($attrs, $column_attrs);
} elseif($column_attrs) {
$methodSignature = get_class($handler) . "::getColumnAttributes()";
throw new LogicException("Non-array response from $methodSignature.");
}
}
return $attrs;
} else {
throw new InvalidArgumentException("Bad column '$column'");
}
}
/**
* Get metadata for a column, example array('Title'=>'Email address')
*
* @param string $column
* @return array
* @throws LogicException
* @throws InvalidArgumentException
*/
public function getColumnMetadata($column) {
// Build the column dispatch
if(!$this->columnDispatch) {
$this->buildColumnDispatch();
}
if(!empty($this->columnDispatch[$column])) {
$metadata = array();
foreach($this->columnDispatch[$column] as $handler) {
$column_metadata = $handler->getColumnMetadata($this, $column);
if(is_array($column_metadata)) {
$metadata = array_merge($metadata, $column_metadata);
} else {
$methodSignature = get_class($handler) . "::getColumnMetadata()";
throw new LogicException("Non-array response from $methodSignature.");
}
}
return $metadata;
}
throw new InvalidArgumentException("Bad column '$column'");
}
/**
* Return how many columns the grid will have
*
* @return int
*/
public function getColumnCount() {
// Build the column dispatch
if(!$this->columnDispatch) $this->buildColumnDispatch();
return count($this->columnDispatch);
}
/**
* Build an columnDispatch that maps a GridField_ColumnProvider to a column
* for reference later
*
*/
protected function buildColumnDispatch() {
$this->columnDispatch = array();
foreach($this->getComponents() as $item) {
if($item instanceof GridField_ColumnProvider) {
$columns = $item->getColumnsHandled($this);
foreach($columns as $column) {
$this->columnDispatch[$column][] = $item;
}
}
}
}
/**
* This is the action that gets executed when a GridField_AlterAction gets clicked.
*
* @param array $data
* @return string
*/
public function gridFieldAlterAction($data, $form, SS_HTTPRequest $request) {
$html = '';
$data = $request->requestVars();
$fieldData = @$data[$this->getName()];
// Update state from client
$state = $this->getState(false);
if(isset($fieldData['GridState'])) $state->setValue($fieldData['GridState']);
// Try to execute alter action
foreach($data as $k => $v) {
if(preg_match('/^action_gridFieldAlterAction\?StateID=(.*)/', $k, $matches)) {
$id = $matches[1];
$stateChange = Session::get($id);
$actionName = $stateChange['actionName'];
$args = isset($stateChange['args']) ? $stateChange['args'] : array();
$html = $this->handleAction($actionName, $args, $data);
// A field can optionally return its own HTML
if($html) return $html;
}
}
switch($request->getHeader('X-Pjax')) {
case 'CurrentField':
return $this->FieldHolder();
break;
case 'CurrentForm':
return $form->forTemplate();
break;
default:
return $form->forTemplate();
break;
}
}
/**
* Pass an action on the first GridField_ActionProvider that matches the $actionName
*
* @param string $actionName
* @param mixed $args
* @param arrray $data - send data from a form
* @return type
* @throws InvalidArgumentException
*/
public function handleAction($actionName, $args, $data) {
$actionName = strtolower($actionName);
foreach($this->getComponents() as $component) {
if(!($component instanceof GridField_ActionProvider)) {
continue;
}
if(in_array($actionName, array_map('strtolower', (array)$component->getActions($this)))) {
return $component->handleAction($this, $actionName, $args, $data);
}
}
throw new InvalidArgumentException("Can't handle action '$actionName'");
}
/**
* Custom request handler that will check component handlers before proceeding to the default implementation.
*
* @todo There is too much code copied from RequestHandler here.
*/
public function handleRequest(SS_HTTPRequest $request, DataModel $model) {
if($this->brokenOnConstruct) {
user_error("parent::__construct() needs to be called on {$handlerClass}::__construct()", E_USER_WARNING);
}
$this->request = $request;
$this->setDataModel($model);
$fieldData = $this->request->requestVar($this->getName());
if($fieldData && $fieldData['GridState']) $this->getState(false)->setValue($fieldData['GridState']);
foreach($this->getComponents() as $component) {
if(!($component instanceof GridField_URLHandler)) {
continue;
}
$urlHandlers = $component->getURLHandlers($this);
if($urlHandlers) foreach($urlHandlers as $rule => $action) {
if($params = $request->match($rule, true)) {
// Actions can reference URL parameters, eg, '$Action/$ID/$OtherID' => '$Action',
if($action[0] == '$') $action = $params[substr($action,1)];
if(!method_exists($component, 'checkAccessAction') || $component->checkAccessAction($action)) {
if(!$action) {
$action = "index";
} else if(!is_string($action)) {
throw new LogicException("Non-string method name: " . var_export($action, true));
}
try {
$result = $component->$action($this, $request);
} catch(SS_HTTPResponse_Exception $responseException) {
$result = $responseException->getResponse();
}
if($result instanceof SS_HTTPResponse && $result->isError()) {
return $result;
}
if($this !== $result && !$request->isEmptyPattern($rule) && is_object($result)
&& $result instanceof RequestHandler) {
$returnValue = $result->handleRequest($request, $model);
if(is_array($returnValue)) {
throw new LogicException("GridField_URLHandler handlers can't return arrays");
}
return $returnValue;
// If we return some other data, and all the URL is parsed, then return that
} else if($request->allParsed()) {
return $result;
// But if we have more content on the URL and we don't know what to do with it, return an error
} else {
return $this->httpError(404,
"I can't handle sub-URLs of a " . get_class($result) . " object.");
}
}
}
}
}
return parent::handleRequest($request, $model);
}
}
/**
* This class is the base class when you want to have an action that alters the state of the gridfield,
* rendered as a button element.
*
* @package framework
* @subpackage forms
*
*/
class GridField_FormAction extends FormAction {
/**
*
* @var GridField
*/
protected $gridField;
/**
*
* @var array
*/
protected $stateValues;
/**
*
* @var array
*/
//protected $stateFields = array();
protected $actionName;
protected $args = array();
public $useButtonTag = true;
/**
*
* @param GridField $gridField
* @param type $name
* @param type $label
* @param type $actionName
* @param type $args
*/
public function __construct(GridField $gridField, $name, $title, $actionName, $args) {
$this->gridField = $gridField;
$this->actionName = $actionName;
$this->args = $args;
parent::__construct($name, $title);
}
/**
* urlencode encodes less characters in percent form than we need - we need everything that isn't a \w
*
* @param string $val
*/
public function nameEncode($val) {
return preg_replace_callback('/[^\w]/', array($this, '_nameEncode'), $val);
}
/**
* The callback for nameEncode
*
* @param string $val
*/
public function _nameEncode($match) {
return '%'.dechex(ord($match[0]));
}
public function getAttributes() {
// Store state in session, and pass ID to client side
$state = array(
'grid' => $this->getNameFromParent(),
'actionName' => $this->actionName,
'args' => $this->args,
);
$id = preg_replace('/[^\w]+/', '_', uniqid('', true));
Session::set($id, $state);
$actionData['StateID'] = $id;
return array_merge(
parent::getAttributes(),
array(
// Note: This field needs to be less than 65 chars, otherwise Suhosin security patch
// will strip it from the requests
'name' => 'action_gridFieldAlterAction'. '?' . http_build_query($actionData),
'data-url' => $this->gridField->Link(),
)
);
}
/**
* Calculate the name of the gridfield relative to the Form
*
* @param GridField $base
* @return string
*/
protected function getNameFromParent() {
$base = $this->gridField;
$name = array();
do {
array_unshift($name, $base->getName());
$base = $base->getForm();
} while ($base && !($base instanceof Form));
return implode('.', $name);
}
}