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<?php |
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|
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namespace Tableberg\Renderer\Migrations; |
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|
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class TableBlockMigrator { |
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const CURRENT_VERSION = 3; |
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|
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public function migrate($attrs, $block = null) { |
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if (!is_array($attrs)) { |
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return $attrs; |
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} |
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|
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$version = $this->get_version($attrs); |
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if ($version >= self::CURRENT_VERSION) { |
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return $attrs; |
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} |
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|
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$migrators = $this->get_migrators(); |
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|
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while ($version < self::CURRENT_VERSION) { |
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if (!isset($migrators[$version])) { |
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return $attrs; |
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} |
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|
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$attrs = $migrators[$version]->migrate($attrs, $block); |
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if (!is_array($attrs)) { |
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return $attrs; |
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} |
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|
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$version = $this->get_version($attrs); |
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} |
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|
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return $attrs; |
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} |
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|
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private function get_version($attrs) { |
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if ( |
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!is_array($attrs) || |
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!isset($attrs['version']) || |
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!is_numeric($attrs['version']) |
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) { |
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return 0; |
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} |
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|
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return (int) $attrs['version']; |
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} |
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|
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private function get_migrators() { |
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return [ |
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0 => new TableBlockMigratorV0ToV1(), |
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1 => new TableBlockMigratorV1ToV2(), |
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2 => new TableBlockMigratorV2ToV3(), |
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]; |
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} |
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} |
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|
