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Merge branch 'migration-order-2x' into 2.x
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| <?php | ||
|
|
||
| namespace bizley\migration; | ||
|
|
||
| use yii\base\Component; | ||
| use yii\base\InvalidConfigException; | ||
| use yii\db\Connection; | ||
|
|
||
| /** | ||
| * Class Arranger | ||
| * @package bizley\migration | ||
| * @since 2.7.0 | ||
| */ | ||
| class Arranger extends Component | ||
| { | ||
| /** | ||
| * @var Connection DB connection. | ||
| */ | ||
| public $db; | ||
|
|
||
| /** | ||
| * @var array DB tables to be arranged. | ||
| */ | ||
| public $inputTables = []; | ||
|
|
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| /** | ||
| * Checks if DB connection is passed. | ||
| * @throws InvalidConfigException | ||
| */ | ||
| public function init() | ||
| { | ||
| parent::init(); | ||
|
|
||
| if (!($this->db instanceof Connection)) { | ||
| throw new InvalidConfigException("Parameter 'db' must be an instance of yii\\db\\Connection!"); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @return array | ||
| * @throws InvalidConfigException | ||
| */ | ||
| public function arrangeNewMigrations() | ||
| { | ||
| foreach ($this->inputTables as $inputTable) { | ||
| $this->addDependency($inputTable); | ||
|
|
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| $generator = new Generator([ | ||
| 'db' => $this->db, | ||
| 'tableName' => $inputTable, | ||
| ]); | ||
|
|
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| $tableStructure = $generator->getTable(); | ||
| foreach ($tableStructure->foreignKeys as $foreignKey) { | ||
| $this->addDependency($inputTable, $foreignKey->refTable); | ||
| } | ||
| } | ||
|
|
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| return $this->arrangeTables($this->_dependency); | ||
| } | ||
|
|
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| private $_dependency = []; | ||
|
|
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| /** | ||
| * @param string $table | ||
| * @param string|null $dependensOnTable | ||
| */ | ||
| protected function addDependency($table, $dependensOnTable = null) | ||
| { | ||
| if (!array_key_exists($table, $this->_dependency)) { | ||
| $this->_dependency[$table] = []; | ||
| } | ||
|
|
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| if ($dependensOnTable) { | ||
| $this->_dependency[$table][] = $dependensOnTable; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param array $input | ||
| * @return array | ||
| */ | ||
| public function arrangeTables($input) | ||
| { | ||
| $output = []; | ||
| $checkList = []; | ||
| $postLink = []; | ||
|
|
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| $inputCount = count($input); | ||
|
|
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| while ($inputCount > count($output)) { | ||
| $done = false; | ||
| $lastCheckedName = $lastCheckedDependency = null; | ||
|
|
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| foreach ($input as $name => $dependencies) { | ||
| if (array_key_exists($name, $checkList)) { | ||
| continue; | ||
| } | ||
|
|
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| $resolved = true; | ||
|
|
||
| foreach ($dependencies as $dependency) { | ||
| if (!array_key_exists($dependency, $checkList)) { | ||
| $resolved = false; | ||
| $lastCheckedName = $name; | ||
| $lastCheckedDependency = $dependency; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| if ($resolved) { | ||
| $checkList[$name] = true; | ||
| $output[] = $name; | ||
|
|
||
| $done = true; | ||
| } | ||
| } | ||
|
|
||
| if (!$done) { | ||
| $input[$lastCheckedName] = array_diff($input[$lastCheckedName], [$lastCheckedDependency]); | ||
|
|
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| $redo = $this->arrangeTables($input); | ||
| $output = $redo['order']; | ||
| $postLinkMerged = array_merge_recursive( | ||
| [$lastCheckedName => [$lastCheckedDependency]], | ||
| $redo['suppressForeignKeys'] | ||
| ); | ||
| $filteredLink = []; | ||
| foreach ($postLinkMerged as $name => $dependencies) { | ||
| $filteredLink[$name] = array_unique($dependencies); | ||
| } | ||
| $postLink = $filteredLink; | ||
| } | ||
| } | ||
|
|
||
| return [ | ||
| 'order' => $output, | ||
| 'suppressForeignKeys' => $postLink, | ||
| ]; | ||
| } | ||
| } |
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