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Content.php
181 lines (158 loc) · 5.81 KB
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Content.php
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<?php
/**
* @link https://craftcms.com/
* @copyright Copyright (c) Pixel & Tonic, Inc.
* @license https://craftcms.github.io/license/
*/
namespace craft\services;
use craft\base\ElementInterface;
use craft\db\Connection;
use craft\db\Query;
use craft\db\Table;
use craft\events\ElementContentEvent;
use craft\helpers\Db;
use craft\helpers\ElementHelper;
use yii\base\Component;
use yii\base\Exception;
use yii\di\Instance;
/**
* Content service.
*
* An instance of the service is available via [[\craft\base\ApplicationTrait::getContent()|`Craft::$app->content`]].
*
* @author Pixel & Tonic, Inc. <support@pixelandtonic.com>
* @since 3.0.0
*/
class Content extends Component
{
/**
* @event ElementContentEvent The event that is triggered before an element’s content is saved.
*/
public const EVENT_BEFORE_SAVE_CONTENT = 'beforeSaveContent';
/**
* @event ElementContentEvent The event that is triggered after an element’s content is saved.
*/
public const EVENT_AFTER_SAVE_CONTENT = 'afterSaveContent';
/**
* @var Connection|array|string The database connection to use
* @since 3.5.6
*/
public string|array|Connection $db = 'db';
/**
* @var string
*/
public string $contentTable = Table::CONTENT;
/**
* @var string|null
*/
public ?string $fieldColumnPrefix = 'field_';
/**
* @var string
*/
public string $fieldContext = 'global';
/**
* @inheritdoc
*/
public function init(): void
{
parent::init();
$this->db = Instance::ensure($this->db, Connection::class);
}
/**
* Saves an element’s content.
*
* @param ElementInterface $element The element whose content we’re saving.
* @return bool Whether the content was saved successfully. If it wasn’t, any validation errors will be saved on the
* element and its content model.
* @throws Exception if $element has not been saved yet
*/
public function saveContent(ElementInterface $element): bool
{
if (!$element->id) {
throw new Exception('Cannot save the content of an unsaved element.');
}
// Serialize the values before we start futzing with the content table & col prefix
$serializedFieldValues = [];
$fields = [];
$fieldLayout = $element->getFieldLayout();
if ($fieldLayout) {
foreach ($fieldLayout->getCustomFields() as $field) {
if (
(!$element->contentId || $element->isFieldDirty($field->handle)) &&
$field::hasContentColumn()
) {
$serializedFieldValues[$field->uid] = $field->serializeValue($element->getFieldValue($field->handle), $element);
$fields[$field->uid] = $field;
}
}
}
$originalContentTable = $this->contentTable;
$originalFieldColumnPrefix = $this->fieldColumnPrefix;
$originalFieldContext = $this->fieldContext;
$this->contentTable = $element->getContentTable();
$this->fieldColumnPrefix = $element->getFieldColumnPrefix();
$this->fieldContext = $element->getFieldContext();
// Fire a 'beforeSaveContent' event
if ($this->hasEventHandlers(self::EVENT_BEFORE_SAVE_CONTENT)) {
$this->trigger(self::EVENT_BEFORE_SAVE_CONTENT, new ElementContentEvent([
'element' => $element,
]));
}
// Prepare the data to be saved
$values = [
'elementId' => $element->id,
'siteId' => $element->siteId,
];
if ($element->hasTitles() && ($title = (string)$element->title) !== '') {
$values['title'] = $title;
}
foreach ($serializedFieldValues as $fieldUid => $value) {
$field = $fields[$fieldUid];
$type = $field->getContentColumnType();
if (is_array($type)) {
foreach (array_keys($type) as $i => $key) {
$column = ElementHelper::fieldColumnFromField($field, $i !== 0 ? $key : null);
$values[$column] = Db::prepareValueForDb(
$value[$key] ?? null,
Db::parseColumnType($type[$key]),
);
}
} else {
$column = ElementHelper::fieldColumnFromField($field);
$values[$column] = Db::prepareValueForDb($value, Db::parseColumnType($type));
}
}
if (!$element->contentId) {
// It could be a draft that's getting published
$element->contentId = (new Query())
->select(['id'])
->from([$this->contentTable])
->where([
'elementId' => $element->id,
'siteId' => $element->siteId,
])
->scalar();
}
// Insert/update the DB row
if ($element->contentId) {
// Update the existing row
Db::update($this->contentTable, $values, [
'id' => $element->contentId,
], [], true, $this->db);
} else {
// Insert a new row and store its ID on the element
Db::insert($this->contentTable, $values, $this->db);
$element->contentId = (int)$this->db->getLastInsertID($this->contentTable);
}
// Fire an 'afterSaveContent' event
if ($this->hasEventHandlers(self::EVENT_AFTER_SAVE_CONTENT)) {
$this->trigger(self::EVENT_AFTER_SAVE_CONTENT, new ElementContentEvent([
'element' => $element,
]));
}
$this->contentTable = $originalContentTable;
$this->fieldColumnPrefix = $originalFieldColumnPrefix;
$this->fieldContext = $originalFieldContext;
return true;
}
}