Cum facem ca un index sa afiseze datele tuturor companiilor la care am eu acces. De exemplu AVBS are nevoie ca lista de clienti sa poata fi si cross-company. Exemplificam deci pe lista de clienti.

Pas 1: in search model creeam o proprietate searchCrossCompanies:

class PartnerSearch extends Partner {

  public $searchCrossCompanies = true;
  /**
   * @inheritdoc
   */
  public function rules() {
    return [
      [[....,'searchCrossCompanies'], 'safe'],
    ];
  }

  public function attributeLabels() {
    $labels = parent::attributeLabels();
    $labels['searchCrossCompanies'] = \Yii::t('app','Search all companies');
    return $labels;
  }

Pas 2: in index creeam un checkbox pentru aceasta proprietate, in formularul de search pre-requisites:

<?= $form->field($searchModel, 'searchCrossCompanies', [
  'horizontalCheckboxTemplate' => '<div class="checkbox-custom checkbox-primary white-bg-field padding-right-10">{input}{label}</div>'
])->checkbox(['onclick'    => '$("#filterForm").attr("target","_self").submit();']) ?>

Pas 3: inapoi in search model, adaptam search-ul – pentru a face cautarea fie dupa companyId fie dupa relevent companies; nu uitam sa scoatem fosta cautare dupa companyId (!):

if ($this->searchCrossCompanies && \Yii::$app->user && \Yii::$app->user->identity) {
  $relevantCompanies = \Yii::$app->user->identity->getRelevantCompanies(1);
  $relevantCompanyIds = ArrayHelper::map($relevantCompanies, "id", "id");
  $query->andWhere(['in', 'partner.companyId', $relevantCompanyIds]);
}
else {
  $query->andWhere(['partner.companyId' => $this->companyId]);
}

Pas 4: inapoi in index, daca checkbox-ul searchCrossCompanies este bifat, atunci afisam si coloana “Company” – ca user-ul sa stie cui apartie fiecare item (daca item-ii au companie!):

$columns = [
  ['class'          => 'yii\grid\SerialColumn',
   'headerOptions'  => ['class' => 'text-right andDot width-40'],
   'filterOptions'  => ['class' => 'empty'],
   'contentOptions' => ['class' => 'text-right andDot'],
  ]];

if($searchModel->searchCrossCompanies){
  $columns['companyId'] = [
    'attribute'      => 'companyId',
    //'label'          => Yii::t('app', 'Name'),
    'headerOptions'  => ['class' => 'text-left width-auto'],
    'filterOptions'  => ['class' => 'text-left'],
    'contentOptions' => ['class' => 'text-left'],
    'value'          => function (Partner $model) {
      return $model->company->name;
    },
  ];
}

$columns += [... restul de coloane ...];

(....)

echo GridView::widget([
  'id'           => 'partnersList',
  'dataProvider' => $dataProvider,
  'filterModel'  => $searchModel,
  'layout'       => $gridLayout,
  'tableOptions' => ['class' => 'table table-bordered fixed-table'],
  'summary'      => Yii::t('app', 'Page {page} of {pageCount}, containing {count} items of total {totalCount}, from {begin} to {end}.'),
  'columns'      => $columns, // <- atasam coloanele
]);

Future enhancement: sa facem asta generic si automat, si sa fie “instalabila” pe oricare alt index.