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1 | <?php |
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2 | |||
3 | namespace SilverStripe\Comments\Tasks; |
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4 | |||
5 | use SilverStripe\Comments\Model\Comment; |
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6 | use SilverStripe\Core\Config\Config; |
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7 | use SilverStripe\Dev\BuildTask; |
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8 | use SilverStripe\ORM\DB; |
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9 | |||
10 | /** |
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11 | * Migrates all 3.x comment's BaseClass fields to the new ParentClass fields |
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12 | * |
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13 | * @package comments |
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14 | */ |
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15 | class MigrateCommentParentsTask extends BuildTask |
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16 | { |
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17 | private static $segment = 'MigrateCommentParentsTask'; |
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18 | |||
19 | protected $title = 'Migrate Comment Parent classes from 3.x'; |
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20 | |||
21 | protected $description = 'Migrates all 3.x Comment BaseClass fields to the new ParentClass fields in 4.0'; |
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22 | |||
23 | /** |
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24 | * @param HTTPRequest $request |
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25 | */ |
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26 | public function run($request) |
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27 | { |
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28 | // Check if anything needs to be done |
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29 | $tableName = Comment::getSchema()->tableName(Comment::class); |
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30 | if (!DB::get_schema()->hasField($tableName, 'BaseClass')) { |
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31 | DB::alteration_message('"BaseClass" does not exist on "' . $tableName . '", nothing to upgrade.', 'notice'); |
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32 | return; |
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33 | } |
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34 | |||
35 | // Set the class names to fully qualified class names first |
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36 | $remapping = Config::inst()->get('SilverStripe\\ORM\\DatabaseAdmin', 'classname_value_remapping'); |
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37 | $updateQuery = "UPDATE \"Comment\" SET \"BaseClass\" = ? WHERE \"BaseClass\" = ?"; |
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38 | foreach ($remapping as $old => $new) { |
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39 | DB::prepared_query($updateQuery, [$new, $old]); |
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40 | } |
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41 | |||
42 | // Move these values to ParentClass (the 4.x column name) |
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43 | DB::query('UPDATE "Comment" SET "ParentClass" = "BaseClass"'); |
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44 | DB::alteration_message('Finished updating any applicable Comment class columns', 'notice'); |
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45 | } |
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46 | } |
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47 |