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550 lines
17 KiB
550 lines
17 KiB
<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\gii\generators\model; |
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use Yii; |
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use yii\db\ActiveRecord; |
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use yii\db\Connection; |
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use yii\db\Schema; |
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use yii\gii\CodeFile; |
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use yii\helpers\Inflector; |
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/** |
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* This generator will generate one or multiple ActiveRecord classes for the specified database table. |
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* |
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* @author Qiang Xue <qiang.xue@gmail.com> |
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* @since 2.0 |
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*/ |
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class Generator extends \yii\gii\Generator |
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{ |
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public $db = 'db'; |
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public $ns = 'app\models'; |
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public $tableName; |
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public $modelClass; |
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public $baseClass = 'yii\db\ActiveRecord'; |
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public $generateRelations = true; |
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public $generateLabelsFromComments = false; |
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/** |
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* @inheritdoc |
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*/ |
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public function getName() |
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{ |
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return 'Model Generator'; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getDescription() |
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{ |
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return 'This generator generates an ActiveRecord class for the specified database table.'; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function rules() |
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{ |
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return array_merge(parent::rules(), [ |
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['db, ns, tableName, modelClass, baseClass', 'filter', 'filter' => 'trim'], |
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['db, ns, tableName, baseClass', 'required'], |
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['db, modelClass', 'match', 'pattern' => '/^\w+$/', 'message' => 'Only word characters are allowed.'], |
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['ns, baseClass', 'match', 'pattern' => '/^[\w\\\\]+$/', 'message' => 'Only word characters and backslashes are allowed.'], |
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['tableName', 'match', 'pattern' => '/^(\w+\.)?([\w\*]+)$/', 'message' => 'Only word characters, and optionally an asterisk and/or a dot are allowed.'], |
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['db', 'validateDb'], |
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['ns', 'validateNamespace'], |
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['tableName', 'validateTableName'], |
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['modelClass', 'validateModelClass', 'skipOnEmpty' => false], |
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['baseClass', 'validateClass', 'params' => ['extends' => ActiveRecord::className()]], |
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['generateRelations, generateLabelsFromComments', 'boolean'], |
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]); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function attributeLabels() |
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{ |
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return [ |
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'ns' => 'Namespace', |
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'db' => 'Database Connection ID', |
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'tableName' => 'Table Name', |
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'modelClass' => 'Model Class', |
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'baseClass' => 'Base Class', |
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'generateRelations' => 'Generate Relations', |
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'generateLabelsFromComments' => 'Generate Labels from DB Comments', |
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]; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function hints() |
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{ |
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return [ |
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'ns' => 'This is the namespace of the ActiveRecord class to be generated, e.g., <code>app\models</code>', |
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'db' => 'This is the ID of the DB application component.', |
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'tableName' => 'This is the name of the DB table that the new ActiveRecord class is associated with, e.g. <code>tbl_post</code>. |
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The table name may consist of the DB schema part if needed, e.g. <code>public.tbl_post</code>. |
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The table name may end with asterisk to match multiple table names, e.g. <code>tbl_*</code> |
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will match tables who name starts with <code>tbl_</code>. In this case, multiple ActiveRecord classes |
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will be generated, one for each matching table name; and the class names will be generated from |
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the matching characters. For example, table <code>tbl_post</code> will generate <code>Post</code> |
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class.', |
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'modelClass' => 'This is the name of the ActiveRecord class to be generated. The class name should not contain |
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the namespace part as it is specified in "Namespace". You do not need to specify the class name |
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if "Table Name" ends with asterisk, in which case multiple ActiveRecord classes will be generated.', |
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'baseClass' => 'This is the base class of the new ActiveRecord class. It should be a fully qualified namespaced class name.', |
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'generateRelations' => 'This indicates whether the generator should generate relations based on |
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foreign key constraints it detects in the database. Note that if your database contains too many tables, |
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you may want to uncheck this option to accelerate the code generation proc ess.', |
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'generateLabelsFromComments' => 'This indicates whether the generator should generate attribute labels |
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by using the comments of the corresponding DB columns.', |
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]; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function autoCompleteData() |
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{ |
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return [ |
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'tableName' => function () { |
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return $this->getDbConnection()->getSchema()->getTableNames(); |
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}, |
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]; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function requiredTemplates() |
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{ |
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return ['model.php']; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function stickyAttributes() |
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{ |
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return ['ns', 'db', 'baseClass', 'generateRelations', 'generateLabelsFromComments']; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function generate() |
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{ |
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$files = []; |
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$relations = $this->generateRelations(); |
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$db = $this->getDbConnection(); |
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foreach ($this->getTableNames() as $tableName) { |
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$className = $this->generateClassName($tableName); |
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$tableSchema = $db->getTableSchema($tableName); |
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$params = [ |
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'tableName' => $tableName, |
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'className' => $className, |
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'tableSchema' => $tableSchema, |
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'labels' => $this->generateLabels($tableSchema), |
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'rules' => $this->generateRules($tableSchema), |
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'relations' => isset($relations[$className]) ? $relations[$className] : [], |
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]; |
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$files[] = new CodeFile( |
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Yii::getAlias('@' . str_replace('\\', '/', $this->ns)) . '/' . $className . '.php', |
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$this->render('model.php', $params) |
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); |
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} |
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return $files; |
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} |
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/** |
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* Generates the attribute labels for the specified table. |
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* @param \yii\db\TableSchema $table the table schema |
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* @return array the generated attribute labels (name => label) |
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*/ |
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public function generateLabels($table) |
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{ |
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$labels = []; |
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foreach ($table->columns as $column) { |
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if ($this->generateLabelsFromComments && !empty($column->comment)) { |
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$labels[$column->name] = $column->comment; |
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} elseif (!strcasecmp($column->name, 'id')) { |
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$labels[$column->name] = 'ID'; |
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} else { |
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$label = Inflector::camel2words($column->name); |
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if (strcasecmp(substr($label, -3), ' id') === 0) { |
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$label = substr($label, 0, -3) . ' ID'; |
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} |
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$labels[$column->name] = $label; |
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} |
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} |
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return $labels; |
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} |
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/** |
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* Generates validation rules for the specified table. |
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* @param \yii\db\TableSchema $table the table schema |
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* @return array the generated validation rules |
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*/ |
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public function generateRules($table) |
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{ |
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$types = []; |
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$lengths = []; |
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foreach ($table->columns as $column) { |
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if ($column->autoIncrement) { |
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continue; |
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} |
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if (!$column->allowNull && $column->defaultValue === null) { |
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$types['required'][] = $column->name; |
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} |
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switch ($column->type) { |
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case Schema::TYPE_SMALLINT: |
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case Schema::TYPE_INTEGER: |
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case Schema::TYPE_BIGINT: |
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$types['integer'][] = $column->name; |
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break; |
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case Schema::TYPE_BOOLEAN: |
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$types['boolean'][] = $column->name; |
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break; |
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case Schema::TYPE_FLOAT: |
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case Schema::TYPE_DECIMAL: |
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case Schema::TYPE_MONEY: |
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$types['number'][] = $column->name; |
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break; |
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case Schema::TYPE_DATE: |
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case Schema::TYPE_TIME: |
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case Schema::TYPE_DATETIME: |
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case Schema::TYPE_TIMESTAMP: |
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$types['safe'][] = $column->name; |
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break; |
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default: // strings |
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if ($column->size > 0) { |
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$lengths[$column->size][] = $column->name; |
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} else { |
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$types['string'][] = $column->name; |
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} |
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} |
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} |
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$rules = []; |
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foreach ($types as $type => $columns) { |
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$rules[] = "['" . implode(', ', $columns) . "', '$type']"; |
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} |
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foreach ($lengths as $length => $columns) { |
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$rules[] = "['" . implode(', ', $columns) . "', 'string', 'max' => $length]"; |
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} |
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return $rules; |
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} |
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/** |
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* @return array the generated relation declarations |
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*/ |
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protected function generateRelations() |
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{ |
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if (!$this->generateRelations) { |
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return []; |
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} |
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$db = $this->getDbConnection(); |
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if (($pos = strpos($this->tableName, '.')) !== false) { |
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$schemaName = substr($this->tableName, 0, $pos); |
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} else { |
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$schemaName = ''; |
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} |
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$relations = []; |
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foreach ($db->getSchema()->getTableSchemas($schemaName) as $table) { |
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$tableName = $table->name; |
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$className = $this->generateClassName($tableName); |
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foreach ($table->foreignKeys as $refs) { |
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$refTable = $refs[0]; |
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unset($refs[0]); |
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$fks = array_keys($refs); |
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$refClassName = $this->generateClassName($refTable); |
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// Add relation for this table |
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$link = $this->generateRelationLink(array_flip($refs)); |
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$relationName = $this->generateRelationName($relations, $className, $table, $fks[0], false); |
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$relations[$className][$relationName] = [ |
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"return \$this->hasOne($refClassName::className(), $link);", |
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$refClassName, |
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false, |
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]; |
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// Add relation for the referenced table |
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$hasMany = false; |
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foreach ($fks as $key) { |
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if (!in_array($key, $table->primaryKey, true)) { |
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$hasMany = true; |
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break; |
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} |
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} |
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$link = $this->generateRelationLink($refs); |
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$relationName = $this->generateRelationName($relations, $refClassName, $refTable, $className, $hasMany); |
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$relations[$refClassName][$relationName] = [ |
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"return \$this->" . ($hasMany ? 'hasMany' : 'hasOne') . "($className::className(), $link);", |
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$className, |
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$hasMany, |
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]; |
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} |
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if (($fks = $this->checkPivotTable($table)) === false) { |
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continue; |
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} |
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$table0 = $fks[$table->primaryKey[0]][0]; |
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$table1 = $fks[$table->primaryKey[1]][0]; |
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$className0 = $this->generateClassName($table0); |
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$className1 = $this->generateClassName($table1); |
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$link = $this->generateRelationLink([$fks[$table->primaryKey[1]][1] => $table->primaryKey[1]]); |
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$viaLink = $this->generateRelationLink([$table->primaryKey[0] => $fks[$table->primaryKey[0]][1]]); |
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$relationName = $this->generateRelationName($relations, $className0, $db->getTableSchema($table0), $table->primaryKey[1], true); |
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$relations[$className0][$relationName] = [ |
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"return \$this->hasMany($className1::className(), $link)->viaTable('{$table->name}', $viaLink);", |
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$className0, |
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true, |
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]; |
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$link = $this->generateRelationLink([$fks[$table->primaryKey[0]][1] => $table->primaryKey[0]]); |
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$viaLink = $this->generateRelationLink([$table->primaryKey[1] => $fks[$table->primaryKey[1]][1]]); |
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$relationName = $this->generateRelationName($relations, $className1, $db->getTableSchema($table1), $table->primaryKey[0], true); |
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$relations[$className1][$relationName] = [ |
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"return \$this->hasMany($className0::className(), $link)->viaTable('{$table->name}', $viaLink);", |
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$className1, |
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true, |
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]; |
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} |
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return $relations; |
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} |
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/** |
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* Generates the link parameter to be used in generating the relation declaration. |
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* @param array $refs reference constraint |
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* @return string the generated link parameter. |
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*/ |
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protected function generateRelationLink($refs) |
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{ |
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$pairs = []; |
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foreach ($refs as $a => $b) { |
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$pairs[] = "'$a' => '$b'"; |
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} |
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return '[' . implode(', ', $pairs) . ']'; |
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} |
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/** |
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* Checks if the given table is a pivot table. |
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* For simplicity, this method only deals with the case where the pivot contains two PK columns, |
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* each referencing a column in a different table. |
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* @param \yii\db\TableSchema the table being checked |
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* @return array|boolean the relevant foreign key constraint information if the table is a pivot table, |
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* or false if the table is not a pivot table. |
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*/ |
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protected function checkPivotTable($table) |
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{ |
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$pk = $table->primaryKey; |
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if (count($pk) !== 2) { |
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return false; |
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} |
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$fks = []; |
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foreach ($table->foreignKeys as $refs) { |
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if (count($refs) === 2) { |
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if (isset($refs[$pk[0]])) { |
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$fks[$pk[0]] = [$refs[0], $refs[$pk[0]]]; |
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} elseif (isset($refs[$pk[1]])) { |
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$fks[$pk[1]] = [$refs[0], $refs[$pk[1]]]; |
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} |
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} |
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} |
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if (count($fks) === 2 && $fks[$pk[0]][0] !== $fks[$pk[1]][0]) { |
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return $fks; |
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} else { |
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return false; |
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} |
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} |
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/** |
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* Generate a relation name for the specified table and a base name. |
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* @param array $relations the relations being generated currently. |
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* @param string $className the class name that will contain the relation declarations |
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* @param \yii\db\TableSchema $table the table schema |
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* @param string $key a base name that the relation name may be generated from |
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* @param boolean $multiple whether this is a has-many relation |
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* @return string the relation name |
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*/ |
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protected function generateRelationName($relations, $className, $table, $key, $multiple) |
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{ |
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if (strcasecmp(substr($key, -2), 'id') === 0 && strcasecmp($key, 'id')) { |
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$key = rtrim(substr($key, 0, -2), '_'); |
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} |
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if ($multiple) { |
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$key = Inflector::pluralize($key); |
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} |
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$name = $rawName = Inflector::id2camel($key, '_'); |
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$i = 0; |
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while (isset($table->columns[$name])) { |
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$name = $rawName . ($i++); |
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} |
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while (isset($relations[$className][$name])) { |
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$name = $rawName . ($i++); |
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} |
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return $name; |
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} |
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/** |
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* Validates the [[db]] attribute. |
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*/ |
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public function validateDb() |
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{ |
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if (Yii::$app->hasComponent($this->db) === false) { |
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$this->addError('db', 'There is no application component named "db".'); |
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} elseif (!Yii::$app->getComponent($this->db) instanceof Connection) { |
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$this->addError('db', 'The "db" application component must be a DB connection instance.'); |
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} |
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} |
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/** |
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* Validates the [[ns]] attribute. |
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*/ |
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public function validateNamespace() |
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{ |
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$this->ns = ltrim($this->ns, '\\'); |
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$path = Yii::getAlias('@' . str_replace('\\', '/', $this->ns), false); |
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if ($path === false) { |
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$this->addError('ns', 'Namespace must be associated with an existing directory.'); |
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} |
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} |
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/** |
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* Validates the [[modelClass]] attribute. |
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*/ |
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public function validateModelClass() |
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{ |
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if ($this->isReservedKeyword($this->modelClass)) { |
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$this->addError('modelClass', 'Class name cannot be a reserved PHP keyword.'); |
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} |
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if (substr($this->tableName, -1) !== '*' && $this->modelClass == '') { |
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$this->addError('modelClass', 'Model Class cannot be blank if table name does not end with asterisk.'); |
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} |
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} |
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/** |
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* Validates the [[tableName]] attribute. |
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*/ |
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public function validateTableName() |
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{ |
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if (($pos = strpos($this->tableName, '*')) !== false && substr($this->tableName, -1) !== '*') { |
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$this->addError('tableName', 'Asterisk is only allowed as the last character.'); |
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return; |
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} |
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$tables = $this->getTableNames(); |
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if (empty($tables)) { |
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$this->addError('tableName', "Table '{$this->tableName}' does not exist."); |
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} else { |
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foreach ($tables as $table) { |
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$class = $this->generateClassName($table); |
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if ($this->isReservedKeyword($class)) { |
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$this->addError('tableName', "Table '$table' will generate a class which is a reserved PHP keyword."); |
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break; |
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} |
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} |
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} |
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} |
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private $_tableNames; |
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private $_classNames; |
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/** |
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* @return array the table names that match the pattern specified by [[tableName]]. |
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*/ |
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protected function getTableNames() |
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{ |
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if ($this->_tableNames !== null) { |
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return $this->_tableNames; |
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} |
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$db = $this->getDbConnection(); |
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if ($db === null) { |
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return []; |
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} |
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$tableNames = []; |
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if (strpos($this->tableName, '*') !== false) { |
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if (($pos = strrpos($this->tableName, '.')) !== false) { |
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$schema = substr($this->tableName, 0, $pos); |
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$pattern = '/^' . str_replace('*', '\w+', substr($this->tableName, $pos + 1)) . '$/'; |
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} else { |
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$schema = ''; |
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$pattern = '/^' . str_replace('*', '\w+', $this->tableName) . '$/'; |
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} |
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|
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foreach ($db->schema->getTableNames($schema) as $table) { |
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if (preg_match($pattern, $table)) { |
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$tableNames[] = $schema === '' ? $table : ($schema . '.' . $table); |
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} |
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} |
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} elseif (($table = $db->getTableSchema($this->tableName, true)) !== null) { |
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$tableNames[] = $this->tableName; |
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$this->_classNames[$this->tableName] = $this->modelClass; |
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} |
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return $this->_tableNames = $tableNames; |
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} |
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|
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/** |
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* Generates a class name from the specified table name. |
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* @param string $tableName the table name (which may contain schema prefix) |
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* @return string the generated class name |
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*/ |
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protected function generateClassName($tableName) |
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{ |
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if (isset($this->_classNames[$tableName])) { |
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return $this->_classNames[$tableName]; |
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} |
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|
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if (($pos = strrpos($tableName, '.')) !== false) { |
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$tableName = substr($tableName, $pos + 1); |
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} |
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|
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$db = $this->getDbConnection(); |
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$patterns = []; |
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if (strpos($this->tableName, '*') !== false) { |
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$pattern = $this->tableName; |
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if (($pos = strrpos($pattern, '.')) !== false) { |
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$pattern = substr($pattern, $pos + 1); |
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} |
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$patterns[] = '/^' . str_replace('*', '(\w+)', $pattern) . '$/'; |
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} |
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if (!empty($db->tablePrefix)) { |
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$patterns[] = "/^{$db->tablePrefix}(.*?)$/"; |
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$patterns[] = "/^(.*?){$db->tablePrefix}$/"; |
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} else { |
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$patterns[] = "/^tbl_(.*?)$/"; |
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} |
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|
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$className = $tableName; |
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foreach ($patterns as $pattern) { |
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if (preg_match($pattern, $tableName, $matches)) { |
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$className = $matches[1]; |
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break; |
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} |
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} |
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return $this->_classNames[$tableName] = Inflector::id2camel($className, '_'); |
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} |
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|
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/** |
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* @return Connection the DB connection as specified by [[db]]. |
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*/ |
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protected function getDbConnection() |
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{ |
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return Yii::$app->{$this->db}; |
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} |
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}
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