vistart / yii2-models

gii/baseUserModel/Generator.php

<?php

/**
 *  _   __ __ _____ _____ ___  ____  _____
 * | | / // // ___//_  _//   ||  __||_   _|
 * | |/ // /(__  )  / / / /| || |     | |
 * |___//_//____/  /_/ /_/ |_||_|     |_|
 * @link http://vistart.name/
 * @copyright Copyright (c) 2015 vistart
 * @license http://vistart.name/license/
 */

namespace vistart\Models\gii\baseUserModel;

use Yii;
use yii\db\ActiveQuery;
use yii\db\ActiveRecord;
use yii\db\Connection;
use yii\db\Schema;
use yii\gii\CodeFile;
use yii\helpers\Inflector;
use yii\base\NotSupportedException;
use vistart\Models\models\BaseUserModel;

/**
 * Description of Generator
 *
 * @author vistart <i@vistart.name>
 */
class Generator extends \yii\gii\Generator {

    public $db = 'db';
    public $guidAttribute = 'guid';
    public $idAttribute = 'id';
    public $idAttributeType = '';
    public $idAttributeTypes = [
        0 => 'Random Number',
        1 => 'Random String',
        2 => 'Auto Increment',
    ];
    public $passwordHashAttribute = 'pass_hash';
    public $createdAtAttribute = 'create_time';
    public $updatedAtAttribute = 'update_time';
    public $enableIP = true;
    public $ipAttribute1 = 'ip_1';
    public $ipAttribute2 = 'ip_2';
    public $ipAttribute3 = 'ip_3';
    public $ipAttribute4 = 'ip_4';
    public $ipTypeAttribute = 'ip_type';
    public $authKeyAttribute = 'auth_key';
    public $accessTokenAttribute = 'access_token';
    public $passwordResetTokenAttribute = 'password_reset_token';
    public $statusAttribute = 'status';
    public $sourceAttribute = 'source';
    public $ns = 'app\models';
    public $tableName;
    public $modelClass;
    public $baseClass = 'vistart\Models\models\BaseUserModel';
    public $generatePresettingRules = false;
    public $generatePresettingBehaviors = false;
    public $generateRelations = true;
    public $generateLabelsFromComments = false;
    public $useTablePrefix = false;
    public $useSchemaName = true;
    public $generateQuery = false;
    public $queryNs = 'app\models';
    public $queryClass;
    public $queryBaseClass = 'yii\db\ActiveQuery';

    /**
     * @inheritdoc
     */
    public function getName() {
        return 'User Model Generator';
    }

    /**
     * @inheritdoc
     */
    public function getDescription() {
        return 'This generator generates an BaseUserModel class for the specified database table.';
    }

    /**
     * @inheritdoc
     */
    public function rules() {
        return array_merge(parent::rules(), [
            [['db', 'ns', 'tableName', 'guidAttribute', 'idAttribute', 'passwordHashAttribute', 'createdAtAttribute', 'updatedAtAttribute', 'ipAttribute1', 'ipAttribute2', 'ipAttribute3', 'ipAttribute4', 'ipTypeAttribute', 'authKeyAttribute', 'accessTokenAttribute', 'passwordResetTokenAttribute', 'statusAttribute', 'sourceAttribute', 'modelClass', 'baseClass', 'queryNs', 'queryClass', 'queryBaseClass'], 'filter', 'filter' => 'trim'],
            [['ns', 'queryNs'], 'filter', 'filter' => function($value) {
            return trim($value, '\\');
        }],
            [['db', 'ns', 'tableName', 'baseClass', 'queryNs', 'queryBaseClass', 'guidAttribute', 'passwordHashAttribute', 'authKeyAttribute', 'accessTokenAttribute', 'passwordResetTokenAttribute'], 'required'],
            [['db', 'modelClass', 'queryClass'], 'match', 'pattern' => '/^\w+$/', 'message' => 'Only word characters are allowed.'],
            [['ns', 'baseClass', 'queryNs', 'queryBaseClass'], 'match', 'pattern' => '/^[\w\\\\]+$/', 'message' => 'Only word characters and backslashes are allowed.'],
            [['tableName'], 'match', 'pattern' => '/^(\w+\.)?([\w\*]+)$/', 'message' => 'Only word characters, and optionally an asterisk and/or a dot are allowed.'],
            [['db'], 'validateDb'],
            [['ns', 'queryNs'], 'validateNamespace'],
            [['tableName'], 'validateTableName'],
            [['modelClass'], 'validateModelClass', 'skipOnEmpty' => false],
            [['baseClass'], 'validateClass', 'params' => ['extends' => ActiveRecord::className()]],
            [['queryBaseClass'], 'validateClass', 'params' => ['extends' => ActiveQuery::className()]],
            [['enableIP', 'generatePresettingRules', 'generatePresettingBehaviors', 'generateRelations', 'generateLabelsFromComments', 'useTablePrefix', 'useSchemaName', 'generateQuery'], 'boolean'],
            [['guidAttribute', 'idAttribute', 'passwordHashAttribute', 'createdAtAttribute', 'updatedAtAttribute', 'ipAttribute1', 'ipAttribute2', 'ipAttribute3', 'ipAttribute4', 'ipTypeAttribute', 'authKeyAttribute', 'accessTokenAttribute', 'passwordResetTokenAttribute', 'statusAttribute', 'sourceAttribute'], 'validateFieldsExist'],
            [['enableIP', 'ipAttribute1', 'ipAttribute2', 'ipAttribute3', 'ipAttribute4', 'ipTypeAttribute'], 'validateIP'],
            [['enableI18N'], 'boolean'],
            [['messageCategory'], 'validateMessageCategory', 'skipOnEmpty' => false],
        ]);
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels() {
        return array_merge(parent::attributeLabels(), [
            'ns' => 'Namespace',
            'db' => 'Database Connection ID',
//            'guidAttribute' => 'guid',
//            'idAttribute' => 'id',
//            'passwordHashAttribute' => 'pass_hash',
//            'createdAtAttribute' => 'create_time',
//            'updatedAtAttribute' => 'update_time',
//            'enableIP' => 'enableIP',
//            'ipAttribute1' => 'ip_1',
//            'ipAttribute2' => 'ip_2',
//            'ipAttribute3' => 'ip_3',
//            'ipAttribute4' => 'ip_4',
//            'ipTypeAttribute' => 'ip_type',
//            'authKeyAttribute' => 'auth_key',
//            'accessTokenAttribute' => 'access_token',
//            'passwordResetTokenAttribute' => 'password_reset_token',
//            'statusAttribute' => 'status',
//            'sourceAttribute' => 'source',
            'tableName' => 'Table Name',
            'modelClass' => 'Model Class',
            'baseClass' => 'Base Class',
            'generatePresettingRules' => 'Generate Presetting Rules',
            'generatePresettingBehaviors' => 'Generate Presetting Behaviors',
            'generateRelations' => 'Generate Relations',
            'generateLabelsFromComments' => 'Generate Labels from DB Comments',
            'generateQuery' => 'Generate ActiveQuery',
            'queryNs' => 'ActiveQuery Namespace',
            'queryClass' => 'ActiveQuery Class',
            'queryBaseClass' => 'ActiveQuery Base Class',
        ]);
    }

    /**
     * @inheritdoc
     */
    public function hints() {
        return array_merge(parent::hints(), [
            'ns' => 'This is the namespace of the ActiveRecord class to be generated, e.g., <code>app\models</code>',
            'db' => 'This is the ID of the DB application component.',
            'tableName' => 'This is the name of the DB table that the new ActiveRecord class is associated with, e.g. <code>post</code>.
                The table name may consist of the DB schema part if needed, e.g. <code>public.post</code>.
                The table name may end with asterisk to match multiple table names, e.g. <code>tbl_*</code>
                will match tables who name starts with <code>tbl_</code>. In this case, multiple ActiveRecord classes
                will be generated, one for each matching table name; and the class names will be generated from
                the matching characters. For example, table <code>tbl_post</code> will generate <code>Post</code>
                class.',
            'modelClass' => 'This is the name of the ActiveRecord class to be generated. The class name should not contain
                the namespace part as it is specified in "Namespace". You do not need to specify the class name
                if "Table Name" ends with asterisk, in which case multiple ActiveRecord classes will be generated.',
            'baseClass' => 'This is the base class of the new ActiveRecord class. It should be a fully qualified namespaced class name.',
            'guidAttribute' => 'REQUIRED. GUID Attribute Name, as well as field name of user table.',
            'idAttribute' => 'OPTIONAL. ID Attribute Name, as well as field name of user table. Please left empty if no need for this feature.',
            'passwordHashAttribute' => 'REQUIRED. Password Hash Attribute Name, as well as field name of user table.',
            'createdAtAttribute' => 'OPTIONAL. Created At Attribute Name, as well as field name of user table. Please left empty if no need for this feature.',
            'updatedAtAttribute' => 'OPTIONAL. Updated At Attribute Name, as well as field name of user table. Please left empty if no need for this feature.',
            'enableIP' => 'Indicates whether enable the IP address feature. If true, the following five attributes are required.',
            'ipAttribute1' => 'IP Attribute 1 Name, as well as field name of user table.',
            'ipAttribute2' => 'IP Attribute 2 Name, as well as field name of user table.',
            'ipAttribute3' => 'IP Attribute 3 Name, as well as field name of user table.',
            'ipAttribute4' => 'IP Attribute 4 Name, as well as field name of user table.',
            'ipTypeAttribute' => 'IP Type Attribute Name, as well as field name of user table.',
            'authKeyAttribute' => 'REQUIRED. Auth Key Attribute Name, as well as field name of user table.',
            'accessTokenAttribute' => 'REQUIRED. Access Token Attribute Name, as well as field name of user table.',
            'passwordResetTokenAttribute' => 'OPTIONAL. Password Reset Token Attribute Name, as well as field name of user table. Please left empty if no need for this feature.',
            'sourceAttribute' => 'OPTIONAL. Source Attribute Name, as well as field name of user table. Please left empty if no need for this feature.',
            'statusAttribute' => 'OPTIONAL. Status Attribute Name, as well as field name of user table. Please left empty if no need for this feature.',
            'generatePresettingRules' => 'This indicates whether the generator should generate the presetting rules.',
            'generatePresettingBehaviors' => 'This indicates whether the generator should generate the presetting behaviors.',
            'generateRelations' => 'This indicates whether the generator should generate relations based on
                foreign key constraints it detects in the database. Note that if your database contains too many tables,
                you may want to uncheck this option to accelerate the code generation process.',
            'generateLabelsFromComments' => 'This indicates whether the generator should generate attribute labels
                by using the comments of the corresponding DB columns.',
            'useTablePrefix' => 'This indicates whether the table name returned by the generated ActiveRecord class
                should consider the <code>tablePrefix</code> setting of the DB connection. For example, if the
                table name is <code>tbl_post</code> and <code>tablePrefix=tbl_</code>, the ActiveRecord class
                will return the table name as <code>{{%post}}</code>.',
            'useSchemaName' => 'This indicates whether to include the schema name in the ActiveRecord class
                when it\'s auto generated. Only non default schema would be used.',
            'generateQuery' => 'This indicates whether to generate ActiveQuery for the ActiveRecord class.',
            'queryNs' => 'This is the namespace of the ActiveQuery class to be generated, e.g., <code>app\models</code>',
            'queryClass' => 'This is the name of the ActiveQuery class to be generated. The class name should not contain
                the namespace part as it is specified in "ActiveQuery Namespace". You do not need to specify the class name
                if "Table Name" ends with asterisk, in which case multiple ActiveQuery classes will be generated.',
            'queryBaseClass' => 'This is the base class of the new ActiveQuery class. It should be a fully qualified namespaced class name.',
        ]);
    }

    /**
     * @inheritdoc
     */
    public function autoCompleteData() {
        $db = $this->getDbConnection();
        if ($db !== null) {
            return [
                'tableName' => function () use ($db) {
                    return $db->getSchema()->getTableNames();
                },
            ];
        } else {
            return [];
        }
    }

    /**
     * @inheritdoc
     */
    public function requiredTemplates() {
        // @todo make 'query.php' to be required before 2.1 release
        return ['model.php'/* , 'query.php' */];
    }

    /**
     * @inheritdoc
     */
    public function stickyAttributes() {
        return array_merge(parent::stickyAttributes(), ['ns', 'db', 'baseClass', 'generatePresettingRules', 'generatePresettingBehaviors', 'generateRelations', 'generateLabelsFromComments', 'useTablePrefix', 'queryNs', 'queryBaseClass']);
    }

    public function generate() {
        $files = [];
        $relations = $this->generateRelations();
        $db = $this->getDbConnection();
        foreach ($this->getTableNames() as $tableName) {
            // model :
            $modelClassName = $this->generateClassName($tableName);
            $queryClassName = ($this->generateQuery) ? $this->generateQueryClassName($modelClassName) : false;
            $tableSchema = $db->getTableSchema($tableName);
            $params = [
                'tableName' => $tableName,
                'className' => $modelClassName,
                'queryClassName' => $queryClassName,
                'tableSchema' => $tableSchema,
                'labels' => $this->generateLabels($tableSchema),
                'rules' => $this->generatePresettingRules,
                'behaviors' => $this->generatePresettingBehaviors,
                'relations' => isset($relations[$tableName]) ? $relations[$tableName] : [],
            ];
            $files[] = new CodeFile(
                    Yii::getAlias('@' . str_replace('\\', '/', $this->ns)) . '/' . $modelClassName . '.php', $this->render('model.php', $params)
            );

            // query :
            if ($queryClassName) {

The expression $queryClassName of type string|false is loosely compared to true; this is ambiguous if the string can be empty. You might want to explicitly use !== false instead.

                $params = [
                    'className' => $queryClassName,
                    'modelClassName' => $modelClassName,
                ];
                $files[] = new CodeFile(
                        Yii::getAlias('@' . str_replace('\\', '/', $this->queryNs)) . '/' . $queryClassName . '.php', $this->render('query.php', $params)
                );
            }
        }
        return $files;
    }

    /**
     * Generates the attribute labels for the specified table.
     * @param \yii\db\TableSchema $table the table schema
     * @return array the generated attribute labels (name => label)
     */
    public function generateLabels($table) {
        $labels = [];
        foreach ($table->columns as $column) {
            if ($this->generateLabelsFromComments && !empty($column->comment)) {
                $labels[$column->name] = $column->comment;
            } elseif (!strcasecmp($column->name, 'id')) {
                $labels[$column->name] = 'ID';
            } else {
                $label = Inflector::camel2words($column->name);
                if (!empty($label) && substr_compare($label, ' id', -3, 3, true) === 0) {
                    $label = substr($label, 0, -3) . ' ID';
                }
                $labels[$column->name] = $label;
            }
        }

        return $labels;
    }
    
    /**
     * Generates relations using a junction table by adding an extra viaTable().
     * @param \yii\db\TableSchema the table being checked
     * @param array $fks obtained from the checkPivotTable() method
     * @param array $relations
     * @return array modified $relations
     */
    private function generateManyManyRelations($table, $fks, $relations) {
        $db = $this->getDbConnection();
        $table0 = $fks[$table->primaryKey[0]][0];
        $table1 = $fks[$table->primaryKey[1]][0];
        $className0 = $this->generateClassName($table0);
        $className1 = $this->generateClassName($table1);
        $table0Schema = $db->getTableSchema($table0);
        $table1Schema = $db->getTableSchema($table1);

        $link = $this->generateRelationLink([$fks[$table->primaryKey[1]][1] => $table->primaryKey[1]]);
        $viaLink = $this->generateRelationLink([$table->primaryKey[0] => $fks[$table->primaryKey[0]][1]]);
        $relationName = $this->generateRelationName($relations, $table0Schema, $table->primaryKey[1], true);
        $relations[$table0Schema->fullName][$relationName] = [
            "return \$this->hasMany($className1::className(), $link)->viaTable('"
            . $this->generateTableName($table->name) . "', $viaLink);",
            $className1,
            true,
        ];

        $link = $this->generateRelationLink([$fks[$table->primaryKey[0]][1] => $table->primaryKey[0]]);
        $viaLink = $this->generateRelationLink([$table->primaryKey[1] => $fks[$table->primaryKey[1]][1]]);
        $relationName = $this->generateRelationName($relations, $table1Schema, $table->primaryKey[0], true);
        $relations[$table1Schema->fullName][$relationName] = [
            "return \$this->hasMany($className0::className(), $link)->viaTable('"
            . $this->generateTableName($table->name) . "', $viaLink);",
            $className0,
            true,
        ];

        return $relations;
    }

    /**
     * @return array the generated relation declarations
     */
    protected function generateRelations() {
        if (!$this->generateRelations) {
            return [];
        }

        $db = $this->getDbConnection();

        $schema = $db->getSchema();
        if ($schema->hasMethod('getSchemaNames')) { // keep BC to Yii versions < 2.0.4
            try {
                $schemaNames = $schema->getSchemaNames();
            } catch (NotSupportedException $e) {
                // schema names are not supported by schema
            }
        }
        if (!isset($schemaNames)) {
            if (($pos = strpos($this->tableName, '.')) !== false) {
                $schemaNames = [substr($this->tableName, 0, $pos)];
            } else {
                $schemaNames = [''];
            }
        }

        $relations = [];
        foreach ($schemaNames as $schemaName) {
            foreach ($db->getSchema()->getTableSchemas($schemaName) as $table) {
                $className = $this->generateClassName($table->fullName);
                foreach ($table->foreignKeys as $refs) {
                    $refTable = $refs[0];
                    $refTableSchema = $db->getTableSchema($refTable);
                    unset($refs[0]);
                    $fks = array_keys($refs);
                    $refClassName = $this->generateClassName($refTable);

                    // Add relation for this table
                    $link = $this->generateRelationLink(array_flip($refs));
                    $relationName = $this->generateRelationName($relations, $table, $fks[0], false);
                    $relations[$table->fullName][$relationName] = [
                        "return \$this->hasOne($refClassName::className(), $link);",
                        $refClassName,
                        false,
                    ];

                    // Add relation for the referenced table
                    $uniqueKeys = [$table->primaryKey];
                    try {
                        $uniqueKeys = array_merge($uniqueKeys, $db->getSchema()->findUniqueIndexes($table));
                    } catch (NotSupportedException $e) {
                        // ignore
                    }
                    $hasMany = true;
                    foreach ($uniqueKeys as $uniqueKey) {
                        if (count(array_diff(array_merge($uniqueKey, $fks), array_intersect($uniqueKey, $fks))) === 0) {
                            $hasMany = false;
                            break;
                        }
                    }
                    $link = $this->generateRelationLink($refs);
                    $relationName = $this->generateRelationName($relations, $refTableSchema, $className, $hasMany);
                    $relations[$refTableSchema->fullName][$relationName] = [
                        "return \$this->" . ($hasMany ? 'hasMany' : 'hasOne') . "($className::className(), $link);",
                        $className,
                        $hasMany,
                    ];
                }

                if (($fks = $this->checkPivotTable($table)) === false) {
                    continue;
                }

                $relations = $this->generateManyManyRelations($table, $fks, $relations);
            }
        }

        return $relations;
    }

    /**
     * Generates the link parameter to be used in generating the relation declaration.
     * @param array $refs reference constraint
     * @return string the generated link parameter.
     */
    protected function generateRelationLink($refs) {
        $pairs = [];
        foreach ($refs as $a => $b) {
            $pairs[] = "'$a' => '$b'";
        }

        return '[' . implode(', ', $pairs) . ']';
    }
    
    protected function generateRules($table) {
        
    }

    /**
     * Checks if the given table is a junction table.
     * For simplicity, this method only deals with the case where the pivot contains two PK columns,
     * each referencing a column in a different table.
     * @param \yii\db\TableSchema the table being checked
     * @return array|boolean the relevant foreign key constraint information if the table is a junction table,
     * or false if the table is not a junction table.
     */
    protected function checkPivotTable($table) {
        $pk = $table->primaryKey;
        if (count($pk) !== 2) {
            return false;
        }
        $fks = [];
        foreach ($table->foreignKeys as $refs) {
            if (count($refs) === 2) {
                if (isset($refs[$pk[0]])) {
                    $fks[$pk[0]] = [$refs[0], $refs[$pk[0]]];
                } elseif (isset($refs[$pk[1]])) {
                    $fks[$pk[1]] = [$refs[0], $refs[$pk[1]]];
                }
            }
        }
        if (count($fks) === 2 && $fks[$pk[0]][0] !== $fks[$pk[1]][0]) {
            return $fks;
        } else {
            return false;
        }
    }

    /**
     * Generate a relation name for the specified table and a base name.
     * @param array $relations the relations being generated currently.
     * @param \yii\db\TableSchema $table the table schema
     * @param string $key a base name that the relation name may be generated from
     * @param boolean $multiple whether this is a has-many relation
     * @return string the relation name
     */
    protected function generateRelationName($relations, $table, $key, $multiple) {
        if (!empty($key) && substr_compare($key, 'id', -2, 2, true) === 0 && strcasecmp($key, 'id')) {
            $key = rtrim(substr($key, 0, -2), '_');
        }
        if ($multiple) {
            $key = Inflector::pluralize($key);
        }
        $name = $rawName = Inflector::id2camel($key, '_');
        $i = 0;
        while (isset($table->columns[lcfirst($name)])) {
            $name = $rawName . ($i++);
        }
        while (isset($relations[$table->fullName][$name])) {
            $name = $rawName . ($i++);
        }

        return $name;
    }
    
    public function validateFieldsExist() {
        $db = $this->getDbConnection();
        foreach ($this->getTableNames() as $table) {
            $tableSchema = $db->getTableSchema($table);
            $fields = [
                'guidAttribute',
                'idAttribute',
                'passwordHashAttribute',
                'createdAtAttribute',
                'updatedAtAttribute',
                'ipAttribute1',
                'ipAttribute2',
                'ipAttribute3',
                'ipAttribute4',
                'ipTypeAttribute',
                'authKeyAttribute',
                'accessTokenAttribute',
                'passwordResetTokenAttribute',
                'statusAttribute',
                'sourceAttribute',
            ];
            foreach ($fields as $field) {
                if (isset($this->$field) && $this->$field != '' && !isset($tableSchema->columns[$this->$field])) {
                    $this->addError($field, '`' . $this->$field . '` field does not exist in `' . $table . '` table.');
                    continue;
                }
            }
        }
    }

    /**
     * Validates the [[db]] attribute.
     */
    public function validateDb() {
        if (!Yii::$app->has($this->db)) {
            $this->addError('db', 'There is no application component named "db".');
        } elseif (!Yii::$app->get($this->db) instanceof Connection) {
            $this->addError('db', 'The "db" application component must be a DB connection instance.');
        }
    }
    
    public function validateIP() {
        if (!$this->enableIP) {
            return;
        }
        $db = $this->getDbConnection();

$db is not used, you could remove the assignment.

        $ipAttribute = 'ipAttribute';
        for ($i = 1; $i <= 4; $i++) {
            $ipAttributeName = $ipAttribute . $i;
            if (empty($this->$ipAttributeName)) {
                $this->addError($ipAttributeName, "`$ipAttributeName` should not be empty.");
                continue;
            }
        }
        if (empty($this->ipTypeAttribute)) {
            $this->addError('ipTypeAttribute', "`ipTypeAttribute` should not be empty.");
            return;
        }
    }

    /**
     * Validates the [[ns]] attribute.
     */
    public function validateNamespace() {
        $this->ns = ltrim($this->ns, '\\');
        $path = Yii::getAlias('@' . str_replace('\\', '/', $this->ns), false);
        if ($path === false) {
            $this->addError('ns', 'Namespace must be associated with an existing directory.');
        }
    }

    /**
     * Validates the [[modelClass]] attribute.
     */
    public function validateModelClass() {
        if ($this->isReservedKeyword($this->modelClass)) {
            $this->addError('modelClass', 'Class name cannot be a reserved PHP keyword.');
        }
        if ((empty($this->tableName) || substr_compare($this->tableName, '*', -1, 1)) && $this->modelClass == '') {
            $this->addError('modelClass', 'Model Class cannot be blank if table name does not end with asterisk.');
        }
    }

    /**
     * Validates the [[tableName]] attribute.
     */
    public function validateTableName() {
        if (strpos($this->tableName, '*') !== false && substr_compare($this->tableName, '*', -1, 1)) {
            $this->addError('tableName', 'Asterisk is only allowed as the last character.');

            return;
        }
        $tables = $this->getTableNames();
        if (empty($tables)) {
            $this->addError('tableName', "Table '{$this->tableName}' does not exist.");
        } else {
            foreach ($tables as $table) {
                $class = $this->generateClassName($table);
                if ($this->isReservedKeyword($class)) {
                    $this->addError('tableName', "Table '$table' will generate a class which is a reserved PHP keyword.");
                    break;
                }
            }
        }
    }

    protected $tableNames;
    protected $classNames;

    /**
     * @return array the table names that match the pattern specified by [[tableName]].
     */
    protected function getTableNames() {
        if ($this->tableNames !== null) {
            return $this->tableNames;
        }
        $db = $this->getDbConnection();
        if ($db === null) {
            return [];
        }
        $tableNames = [];
        if (strpos($this->tableName, '*') !== false) {
            if (($pos = strrpos($this->tableName, '.')) !== false) {
                $schema = substr($this->tableName, 0, $pos);
                $pattern = '/^' . str_replace('*', '\w+', substr($this->tableName, $pos + 1)) . '$/';
            } else {
                $schema = '';
                $pattern = '/^' . str_replace('*', '\w+', $this->tableName) . '$/';
            }

            foreach ($db->schema->getTableNames($schema) as $table) {
                if (preg_match($pattern, $table)) {
                    $tableNames[] = $schema === '' ? $table : ($schema . '.' . $table);
                }
            }
        } elseif (($table = $db->getTableSchema($this->tableName, true)) !== null) {
            $tableNames[] = $this->tableName;
            $this->classNames[$this->tableName] = $this->modelClass;
        }

        return $this->tableNames = $tableNames;
    }

    /**
     * Generates the table name by considering table prefix.
     * If [[useTablePrefix]] is false, the table name will be returned without change.
     * @param string $tableName the table name (which may contain schema prefix)
     * @return string the generated table name
     */
    public function generateTableName($tableName) {
        if (!$this->useTablePrefix) {
            return $tableName;
        }

        $db = $this->getDbConnection();
        if (preg_match("/^{$db->tablePrefix}(.*?)$/", $tableName, $matches)) {
            $tableName = '{{%' . $matches[1] . '}}';
        } elseif (preg_match("/^(.*?){$db->tablePrefix}$/", $tableName, $matches)) {
            $tableName = '{{' . $matches[1] . '%}}';
        }
        return $tableName;
    }

    /**
     * Generates a class name from the specified table name.
     * @param string $tableName the table name (which may contain schema prefix)
     * @param boolean $useSchemaName should schema name be included in the class name, if present
     * @return string the generated class name
     */
    protected function generateClassName($tableName, $useSchemaName = null) {
        if (isset($this->classNames[$tableName])) {
            return $this->classNames[$tableName];
        }

        $schemaName = '';
        $fullTableName = $tableName;
        if (($pos = strrpos($tableName, '.')) !== false) {
            if (($useSchemaName === null && $this->useSchemaName) || $useSchemaName) {
                $schemaName = substr($tableName, 0, $pos) . '_';
            }
            $tableName = substr($tableName, $pos + 1);
        }

        $db = $this->getDbConnection();
        $patterns = [];
        $patterns[] = "/^{$db->tablePrefix}(.*?)$/";
        $patterns[] = "/^(.*?){$db->tablePrefix}$/";
        if (strpos($this->tableName, '*') !== false) {
            $pattern = $this->tableName;
            if (($pos = strrpos($pattern, '.')) !== false) {
                $pattern = substr($pattern, $pos + 1);
            }
            $patterns[] = '/^' . str_replace('*', '(\w+)', $pattern) . '$/';
        }
        $className = $tableName;
        foreach ($patterns as $pattern) {
            if (preg_match($pattern, $tableName, $matches)) {
                $className = $matches[1];
                break;
            }
        }

        return $this->classNames[$fullTableName] = Inflector::id2camel($schemaName . $className, '_');
    }

    /**
     * Generates a query class name from the specified model class name.
     * @param string $modelClassName model class name
     * @return string generated class name
     */
    protected function generateQueryClassName($modelClassName) {
        $queryClassName = $this->queryClass;
        if (empty($queryClassName) || strpos($this->tableName, '*') !== false) {
            $queryClassName = $modelClassName . 'Query';
        }
        return $queryClassName;
    }

    /**
     * @return Connection the DB connection as specified by [[db]].
     */
    protected function getDbConnection() {
        return Yii::$app->get($this->db, false);
    }

    /**
     * Checks if any of the specified columns is auto incremental.
     * @param \yii\db\TableSchema $table the table schema
     * @param array $columns columns to check for autoIncrement property
     * @return boolean whether any of the specified columns is auto incremental.
     */
    protected function isColumnAutoIncremental($table, $columns) {
        foreach ($columns as $column) {
            if (isset($table->columns[$column]) && $table->columns[$column]->autoIncrement) {
                return true;
            }
        }

        return false;
    }

}