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<?php |
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/** |
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* Displays a set of checkboxes as a logical group. |
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* |
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* ASSUMPTION -> IF you pass your source as an array, you pass values as an array too. Likewise objects are handled |
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* the same. |
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* |
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* Example: |
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* <code> |
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* new CheckboxSetField( |
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* $name = "topics", |
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* $title = "I am interested in the following topics", |
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* $source = array( |
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* "1" => "Technology", |
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* "2" => "Gardening", |
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* "3" => "Cooking", |
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* "4" => "Sports" |
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* ), |
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* $value = "1" |
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* ); |
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* </code> |
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* |
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* <b>Saving</b> |
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* The checkbox set field will save its data in one of ways: |
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* - If the field name matches a many-many join on the object being edited, that many-many join will be updated to |
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* link to the objects selected on the checkboxes. In this case, the keys of your value map should be the IDs of |
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* the database records. |
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* - If the field name matches a database field, a comma-separated list of values will be saved to that field. The |
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* keys can be text or numbers. |
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* |
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* @todo Document the different source data that can be used |
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* with this form field - e.g ComponentSet, ArrayList, |
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* array. Is it also appropriate to accept so many different |
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* types of data when just using an array would be appropriate? |
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* |
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* @package forms |
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* @subpackage fields-basic |
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*/ |
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class CheckboxSetField extends OptionsetField { |
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/** |
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* @var array |
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*/ |
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protected $defaultItems = array(); |
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/** |
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* @todo Explain different source data that can be used with this field, |
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* e.g. SQLMap, ArrayList or an array. |
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*/ |
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public function Field($properties = array()) { |
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Requirements::css(FRAMEWORK_DIR . '/css/CheckboxSetField.css'); |
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$properties = array_merge($properties, array( |
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'Options' => $this->getOptions() |
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)); |
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return $this->customise($properties)->renderWith( |
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$this->getTemplates() |
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); |
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} |
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/** |
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* @return ArrayList |
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*/ |
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public function getOptions() { |
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$odd = 0; |
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$source = $this->source; |
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$values = $this->value; |
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$items = array(); |
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// Get values from the join, if available |
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if(is_object($this->form)) { |
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$record = $this->form->getRecord(); |
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if(!$values && $record && $record->hasMethod($this->name)) { |
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$funcName = $this->name; |
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$join = $record->$funcName(); |
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if($join) { |
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foreach($join as $joinItem) { |
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$values[] = $joinItem->ID; |
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} |
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} |
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} |
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} |
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// Source is not an array |
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if(!is_array($source) && !is_a($source, 'SQLMap')) { |
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if(is_array($values)) { |
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$items = $values; |
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} else { |
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// Source and values are DataObject sets. |
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if($values && is_a($values, 'SS_List')) { |
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foreach($values as $object) { |
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if(is_a($object, 'DataObject')) { |
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$items[] = $object->ID; |
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} |
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} |
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View Code Duplication |
} elseif($values && is_string($values)) { |
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if(!empty($values)) { |
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$items = explode(',', $values); |
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$items = str_replace('{comma}', ',', $items); |
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} else { |
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$items = array(); |
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} |
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} |
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} |
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} else { |
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// Sometimes we pass a singluar default value thats ! an array && !SS_List |
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if($values instanceof SS_List || is_array($values)) { |
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$items = $values; |
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View Code Duplication |
} else { |
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if($values === null) { |
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$items = array(); |
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} |
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else { |
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if(!empty($values)) { |
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$items = explode(',', $values); |
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$items = str_replace('{comma}', ',', $items); |
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} else { |
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$items = array(); |
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} |
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} |
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} |
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} |
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if(is_array($source)) { |
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unset($source['']); |
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} |
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$options = array(); |
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if ($source == null) { |
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$source = array(); |
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} |
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foreach($source as $value => $item) { |
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if($item instanceof DataObject) { |
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$value = $item->ID; |
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$title = $item->Title; |
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} else { |
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$title = $item; |
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} |
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$itemID = $this->ID() . '_' . preg_replace('/[^a-zA-Z0-9]/', '', $value); |
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$odd = ($odd + 1) % 2; |
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$extraClass = $odd ? 'odd' : 'even'; |
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$extraClass .= ' val' . preg_replace('/[^a-zA-Z0-9\-\_]/', '_', $value); |
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$options[] = new ArrayData(array( |
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'ID' => $itemID, |
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'Class' => $extraClass, |
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'Name' => "{$this->name}[{$value}]", |
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'Value' => $value, |
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'Title' => $title, |
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'isChecked' => in_array($value, $items) || in_array($value, $this->defaultItems), |
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'isDisabled' => $this->disabled || in_array($value, $this->disabledItems) |
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)); |
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} |
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$options = new ArrayList($options); |
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$this->extend('updateGetOptions', $options); |
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return $options; |
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} |
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/** |
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* Default selections, regardless of the {@link setValue()} settings. |
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* Note: Items marked as disabled through {@link setDisabledItems()} can still be |
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* selected by default through this method. |
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* |
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* @param Array $items Collection of array keys, as defined in the $source array |
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*/ |
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public function setDefaultItems($items) { |
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$this->defaultItems = $items; |
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return $this; |
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} |
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/** |
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* @return Array |
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*/ |
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public function getDefaultItems() { |
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return $this->defaultItems; |
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} |
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/** |
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* Load a value into this CheckboxSetField |
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*/ |
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public function setValue($value, $obj = null) { |
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// If we're not passed a value directly, we can look for it in a relation method on the object passed as a |
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// second arg |
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View Code Duplication |
if(!$value && $obj && $obj instanceof DataObject && $obj->hasMethod($this->name)) { |
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$funcName = $this->name; |
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$value = $obj->$funcName()->getIDList(); |
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} |
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parent::setValue($value, $obj); |
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return $this; |
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} |
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/** |
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* Save the current value of this CheckboxSetField into a DataObject. |
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* If the field it is saving to is a has_many or many_many relationship, |
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* it is saved by setByIDList(), otherwise it creates a comma separated |
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* list for a standard DB text/varchar field. |
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* |
208
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* @param DataObject $record The record to save into |
209
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*/ |
210
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public function saveInto(DataObjectInterface $record) { |
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$fieldname = $this->name; |
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$relation = ($fieldname && $record && $record->hasMethod($fieldname)) ? $record->$fieldname() : null; |
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if($fieldname && $record && $relation && |
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($relation instanceof RelationList || $relation instanceof UnsavedRelationList)) { |
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$idList = array(); |
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if($this->value) foreach($this->value as $id => $bool) { |
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if($bool) { |
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$idList[] = $id; |
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} |
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} |
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$relation->setByIDList($idList); |
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View Code Duplication |
} elseif($fieldname && $record) { |
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if($this->value) { |
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$this->value = str_replace(',', '{comma}', $this->value); |
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$record->$fieldname = implode(',', (array) $this->value); |
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} else { |
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$record->$fieldname = ''; |
228
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} |
229
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} |
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} |
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/** |
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* Return the CheckboxSetField value as a string |
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* selected item keys. |
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* |
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* @return string |
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*/ |
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View Code Duplication |
public function dataValue() { |
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if($this->value && is_array($this->value)) { |
240
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$filtered = array(); |
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foreach($this->value as $item) { |
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if($item) { |
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$filtered[] = str_replace(",", "{comma}", $item); |
244
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} |
245
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} |
246
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247
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return implode(',', $filtered); |
248
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} |
249
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250
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return ''; |
251
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} |
252
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253
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public function performDisabledTransformation() { |
254
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$clone = clone $this; |
255
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$clone->setDisabled(true); |
256
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257
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return $clone; |
258
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} |
259
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260
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/** |
261
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* Transforms the source data for this CheckboxSetField |
262
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* into a comma separated list of values. |
263
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* |
264
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* @return ReadonlyField |
265
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*/ |
266
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public function performReadonlyTransformation() { |
267
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$values = ''; |
268
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$data = array(); |
269
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270
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$items = $this->value; |
271
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if($this->source) { |
272
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foreach($this->source as $source) { |
273
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if(is_object($source)) { |
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$sourceTitles[$source->ID] = $source->Title; |
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} |
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} |
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} |
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279
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if($items) { |
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// Items is a DO Set |
281
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if($items instanceof SS_List) { |
282
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foreach($items as $item) { |
283
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$data[] = $item->Title; |
284
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} |
285
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if($data) $values = implode(', ', $data); |
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286
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287
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// Items is an array or single piece of string (including comma seperated string) |
288
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} else { |
289
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if(!is_array($items)) { |
290
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$items = preg_split('/ *, */', trim($items)); |
291
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} |
292
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293
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foreach($items as $item) { |
294
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if(is_array($item)) { |
295
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$data[] = $item['Title']; |
296
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} elseif(is_array($this->source) && !empty($this->source[$item])) { |
297
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$data[] = $this->source[$item]; |
298
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} elseif(is_a($this->source, 'SS_List')) { |
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$data[] = $sourceTitles[$item]; |
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300
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} else { |
301
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$data[] = $item; |
302
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} |
303
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} |
304
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305
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$values = implode(', ', $data); |
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} |
307
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} |
308
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309
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$field = $this->castedCopy('ReadonlyField'); |
310
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$field->setValue($values); |
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312
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return $field; |
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} |
314
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315
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public function Type() { |
316
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return 'optionset checkboxset'; |
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} |
318
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319
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public function ExtraOptions() { |
320
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return FormField::ExtraOptions(); |
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321
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} |
322
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323
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/** |
324
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* Validate this field |
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* |
326
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* @param Validator $validator |
327
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* @return bool |
328
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*/ |
329
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public function validate($validator) { |
330
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$values = $this->value; |
331
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if (!$values) { |
332
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return true; |
333
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} |
334
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$sourceArray = $this->getSourceAsArray(); |
335
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if (is_array($values)) { |
336
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if (!array_intersect_key($sourceArray, $values)) { |
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$validator->validationError( |
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$this->name, |
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_t( |
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'CheckboxSetField.SOURCE_VALIDATION', |
341
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"Please select a value within the list provided. '{value}' is not a valid option", |
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array('value' => implode(' and ', array_diff($sourceArray, $values))) |
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343
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), |
344
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"validation" |
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); |
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return false; |
347
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} |
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View Code Duplication |
} else { |
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349
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if (!in_array($this->value, $sourceArray)) { |
350
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$validator->validationError( |
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$this->name, |
352
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_t( |
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'CheckboxSetField.SOURCE_VALIDATION', |
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"Please select a value within the list provided. '{value}' is not a valid option", |
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array('value' => $this->value) |
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356
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), |
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"validation" |
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); |
359
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return false; |
360
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} |
361
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} |
362
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return true; |
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} |
364
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365
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} |
366
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|
|
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.