每个模型类采用 独立的数据库实例避免混淆

This commit is contained in:
thinkphp
2016-05-05 11:33:32 +08:00
parent fd72a3006c
commit 544e3ea833
3 changed files with 24 additions and 18 deletions

View File

@@ -28,23 +28,30 @@ class Db
* @static
* @access public
* @param mixed $config 连接配置
* @return Object 返回数据库驱动类
* @param bool|string $name 连接标识 true 强制重新连接
* @return \think\db\Connection
*/
public static function connect($config = [])
public static function connect($config = [], $name = false)
{
$md5 = md5(serialize($config));
if (!isset(self::$instances[$md5])) {
if (false === $name) {
$name = md5(serialize($config));
}
if (true === $name || !isset(self::$instances[$name])) {
// 解析连接参数 支持数组和字符串
$options = self::parseConfig($config);
if (empty($options['type'])) {
throw new Exception('db type error');
}
$class = (!empty($options['namespace']) ? $options['namespace'] : '\\think\\db\\connector\\') . ucwords($options['type']);
self::$instances[$md5] = new $class($options);
$class = (!empty($options['namespace']) ? $options['namespace'] : '\\think\\db\\connector\\') . ucwords($options['type']);
// 记录初始化信息
APP_DEBUG && Log::record('[ DB ] INIT ' . $options['type'] . ':' . var_export($options, true), 'info');
if (true === $name) {
return new $class($options);
} else {
self::$instances[$name] = new $class($options);
}
}
return self::$instances[$md5];
return self::$instances[$name];
}
/**

View File

@@ -834,7 +834,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
$model = get_called_class();
$class = new static;
if (!isset(self::$links[$model])) {
self::$links[$model] = Db::connect($class->connection);
self::$links[$model] = Db::connect($class->connection, $model);
}
// 设置当前数据表和模型名
if (!empty($class->table)) {

View File

@@ -39,7 +39,7 @@ class Query
*/
public function __construct($connection = '')
{
$this->connection = $connection ?: Db::connect();
$this->connection = $connection ?: Db::connect([], true);
$this->driver = $this->connection->getDriverName();
}
@@ -988,7 +988,7 @@ class Query
$i = 0;
$currentModel = $this->options['model'];
$class = new $this->options['model'];
$class = new $currentModel;
foreach ($with as $key => $relation) {
$closure = false;
if ($relation instanceof \Closure) {
@@ -1005,15 +1005,15 @@ class Query
$info = $class->getRelationInfo();
if (in_array($info['type'], [Relation::HAS_ONE, Relation::BELONGS_TO])) {
if (0 == $i) {
$joinName = Loader::parseName(basename(str_replace('\\', '/', $this->options['model'])));
$joinTable = $this->getTable();
$this->table($joinTable)->alias($joinName)->field(true, false, $joinTable, $joinName);
$name = Loader::parseName(basename(str_replace('\\', '/', $currentModel)));
$table = $this->getTable();
$this->table($table)->alias($name)->field(true, false, $table, $name);
}
// 预载入封装
$table = $info['model']::getTable();
$name = Loader::parseName(basename(str_replace('\\', '/', $info['model'])));
$this->via($name);
$this->join($table . ' ' . $name, $joinName . '.' . $info['localKey'] . '=' . $name . '.' . $info['foreignKey'])->field(true, false, $table, $name, $name . '__');
$joinTable = $model->getTable();
$joinName = Loader::parseName(basename(str_replace('\\', '/', $info['model'])));
$this->via($joinName);
$this->join($joinTable . ' ' . $joinName, $name . '.' . $info['localKey'] . '=' . $joinName . '.' . $info['foreignKey'])->field(true, false, $joinTable, $joinName, $joinName . '__');
if ($closure) {
// 执行闭包查询
call_user_func_array($closure, [ & $this]);
@@ -1024,7 +1024,6 @@ class Query
}
}
$this->via();
$this->model($currentModel);
$this->options['with'] = $with;
return $this;
}