Grid.php

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<?php

namespace Rsi\Fred\Controller\Widget;

class Grid extends \Rsi\Fred\Controller\Widget{

  const EDIT_ALL = 'editAll'; //!< Which widgets can be edited all at once.
  const UNIQUE = 'unique'; //!< Widgets which value must be unique in the column.
  const TOTAL = 'total'; //!< Show total for column (key = widget, value = total type).

  public $editAll = [];
  public $unique = [];
  public $total = [];

  public function clientConfig(){
    $captions = [];
    foreach($this->widgets as $id => $widget) $captions[$id] = strip_tags($widget->caption($id));
    return array_merge(parent::clientConfig(),$this->get([self::EDIT_ALL,self::UNIQUE,self::TOTAL]),['captions' => $captions]);
  }

  public function convert($value){
    foreach($value as $index => $record) foreach($this->widgets as $id => $widget)
      $value[$index][$id] = $widget->convert($record[$id]);
    return $value;
  }

  protected function purgeBase($value){
    $result = [];
    if(is_array($value)) foreach($value as $index => $record) if(is_numeric($index)){
      $array = [];
      $empty = true;
      foreach($this->widgets as $id => $widget)
        if(($array[$id] = $widget->purge(\Rsi\Record::get($record,$id))) != $widget->defaultValue) $empty = false;
      if(!$empty) $result[] = $array;
    }
    return $result;
  }

  protected function executeChild($id){
    if(array_key_exists($id = array_pop($id),$this->widgets)) $this->widgets[$this->request->widgetId = $id]->execute();
    else parent::executeChild($id);
  }

  protected function checkMin($value,$index = null){
    return parent::checkMin(count($value),$index);
  }

  protected function checkMax($value,$index = null){
    return parent::checkMax(count($value),$index);
  }

  protected function checkRecords($value,$index = null){
    foreach($value as $index => $record) foreach($this->widgets as $id => $widget) if($error = $widget->check($record[$id] ?? null,$index)){
      $this->log->debug("Validation error '$error' for record $index, column '$id'",__FILE__,__LINE__,['records' => $value]);
      return false;
    }
    return true;
  }

  protected function checkUnique($value,$index = null){
    foreach($this->unique as $id){
      $values = array_filter(array_column($value,$id));
      if(count($values) != count(array_unique($values))) return false;
    }
    return true;
  }

}