ForEachBlock: could not resolve "%s".
', esc_html($this->items->getInternalStringId()) )), $context, $this ); return; } $resolved = $optionResult->get(); $itemList = $resolved->getValue(); if ( $itemList === null ) { $itemList = []; } if ( !is_array($itemList) ) { $renderer->renderElement( new StaticHtml(sprintf( 'ForEachBlock: "%s" did not resolve to an array.
', esc_html($this->items->getInternalStringId()) )), $context, $this ); return; } $itemSchema = null; $listSchema = $resolved->getValueSchema(); if ( $listSchema instanceof Collection ) { $itemSchema = $listSchema->getItemSchema(); } $templateElements = $this->getBuiltTemplateElements(); $innerContext = $context->createChildContext(); foreach ($itemList as $key => $item) { $path = $resolved->getPathInSetting(); $path[] = $key; $innerContext->setCurrentItem(new Resolution( $item, $itemSchema, $resolved->getNearestSetting(), $path )); $renderer->renderItems($templateElements, $innerContext, $this); } } protected bool $isTemplateBuilt = false; protected function getBuiltTemplateElements(): array { //Build the template children only once. if ( !$this->isTemplateBuilt ) { $elements = []; foreach ($this->itemTemplateChildren as $child) { if ( $child instanceof ElementBuilder ) { $elements[] = $child->build(); } elseif ( $child instanceof UiElement ) { $elements[] = $child; } else { $typeString = is_object($child) ? get_class($child) : gettype($child); throw new \InvalidArgumentException( 'Invalid item type for ForEachBlock template: ' . $typeString ); } } $this->itemTemplateChildren = $elements; $this->isTemplateBuilt = true; } return $this->itemTemplateChildren; } public function serializeForJs(EvaluationContext $context): array { $result = parent::serializeForJs($context); $result['items'] = self::serializeMinimalBindingForJs($this->items, $context); $templateElements = $this->getBuiltTemplateElements(); if ( !empty($templateElements) ) { $result['children'] = []; foreach ($templateElements as $child) { //Commented out because the JS side doesn't support references yet. //$result['children'][] = $child->serializeForJs($context); } } return $result; } public function serializeForRevisedJs(EvaluationContext $context): array { $result = parent::serializeForRevisedJs($context); $result['items'] = self::serializeMinimalBindingForJs($this->items, $context); $templateElements = $this->getBuiltTemplateElements(); if ( !empty($templateElements) ) { $innerContext = $context->createChildContext(); //Try to resolve the items binding to get the schema of the items. //The children can use this schema to set up control properties like labels, descriptions, //ranges for number inputs, etc. $resolvedOption = $context->partialResolve($this->items); if ( $resolvedOption->isDefined() ) { $resolved = $resolvedOption->get(); $itemSchema = null; $listSchema = $resolved->getValueSchema(); if ( $listSchema instanceof Collection ) { $itemSchema = $listSchema->getItemSchema(); } $innerContext->setCurrentItem(new Resolution( null, $itemSchema, $resolved->getNearestSetting(), $resolved->getPathInSetting() )); } $serializedElements = []; foreach ($templateElements as $child) { $serializedElements[] = $child->serializeForRevisedJs($innerContext); } $result['slots'] = ['default' => $serializedElements]; } return $result; } public function getAllReferencedSettings(EvaluationContext $context) { yield from self::getSettingsReferencedByBinding($this->items, $context); } }