我在homestead虚拟机(vagrant)中使用最新版本的laravel(5.1)。
我将我的项目连接到本地mariaDB服务器,其中我有一些表和2db视图。
因为我只在db-view表上做了一些选择,所以我随机收到这个错误:
通用错误:1615 Prepared语句需要重新准备
从今天开始,当只在db视图上选择时,我总是得到这个错误。如果我打开我的phpMyAdmin并做同样的选择,它会返回正确的结果。
我试图打开php artisan tinker
并选择db视图的一条记录,但它返回相同的错误:
// Select one user from user table
>>> $user = new App'User
=> <App'User #000000006dc32a890000000129f667d2> {}
>>> $user = App'User::find(1);
=> <App'User #000000006dc32a9e0000000129f667d2> {
id: 1,
name: "Luca",
email: "luca@email.it",
customerId: 1,
created_at: "2015-08-06 04:17:57",
updated_at: "2015-08-11 12:39:01"
}
>>>
// Select one source from Source db-view
>>> $source = new App'Source
=> <App'Source #000000006dc32a820000000129f667d2> {}
>>> $source = App'Source::find(1);
Illuminate'Database'QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `sources` where `sources`.`id` = 1 limit 1)'
我怎样才能解决这个问题?我读到关于mysqldump的问题(但不是在我的情况下),并增加table_definition_cache
的值,但不确定它是否会起作用,我不能修改它们。
这是一种旅行虫吗?
我怎么才能算出来?
编辑:如前所述,我添加了我的模型源代码。Source.php:
<?php
namespace App;
use Illuminate'Database'Eloquent'Model;
class Source extends Model
{
protected $table = 'sources';
/*
|--------------------------------------------------------------------------
| FOREIGN KEYS
|--------------------------------------------------------------------------
*/
/**
*
* @return [type] [description]
*/
public function customersList(){
return $this->hasMany("App'CustomerSource", "sourceId", "id");
}
/**
*
* @return [type] [description]
*/
public function issues(){
return $this->hasMany("App'Issue", "sourceId", "id");
}
}
编辑2:
如果我用mysqli在项目中执行相同的查询,它可以工作:
$db = new mysqli(getenv('DB_HOST'), getenv('DB_USERNAME'), getenv('DB_PASSWORD'), getenv('DB_DATABASE'));
if($db->connect_errno > 0){
dd('Unable to connect to database [' . $db->connect_error . ']');
}
$sql = "SELECT * FROM `sources` WHERE `id` = 4";
if(!$result = $db->query($sql)){
dd('There was an error running the query [' . $db->error . ']');
}
dd($result->fetch_assoc());
编辑3:两个月后,我还在那里。同样的错误,没有找到解决方案。我决定在手工修补器中尝试一个小解决方案,但没有好消息。我报告我所尝试的:
首先尝试获取一个表模型:
>>> $user = 'App'User::find(1);
=> App'User {#697
id: 1,
name: "Luca",
email: "luca.d@company.it",
customerId: 1,
created_at: "2015-08-06 04:17:57",
updated_at: "2015-10-27 11:28:14",
}
现在尝试获取视图表模型:
>>> $ir = 'App'ContentRepository::find(15);
Illuminate'Database'QueryException with message 'SQLSTATE[42S02]: Base table or view not found: 1146 Table 'dbname.content_repositories' doesn't exist (SQL: select * from `content_repositories` where `content_repositories`.`id` = 1 limit 1)'
当contentRepository没有正确的表名设置在模型内contentRepository .php:
>>> $pdo = DB::connection()->getPdo();
=> PDO {#690
inTransaction: false,
errorInfo: [
"00000",
1146,
"Table 'dbname.content_repositories' doesn't exist",
],
attributes: [
"CASE" => NATURAL,
"ERRMODE" => EXCEPTION,
"AUTOCOMMIT" => 1,
"PERSISTENT" => false,
"DRIVER_NAME" => "mysql",
"SERVER_INFO" => "Uptime: 2513397 Threads: 12 Questions: 85115742 Slow queries: 6893568 Opens: 1596 Flush tables: 1 Open tables: 936 Queries per second avg: 33.864",
"ORACLE_NULLS" => NATURAL,
"CLIENT_VERSION" => "mysqlnd 5.0.11-dev - 20120503 - $Id: id_here $",
"SERVER_VERSION" => "5.5.5-10.0.17-MariaDB-1~wheezy-wsrep-log",
"STATEMENT_CLASS" => [
"PDOStatement",
],
"EMULATE_PREPARES" => 0,
"CONNECTION_STATUS" => "localiphere via TCP/IP",
"DEFAULT_FETCH_MODE" => BOTH,
],
}
>>>
CHANGE TABLE VALUE INSIDE model ContentRepository.php:
>>> $ir = 'App'ContentRepository::find(15);
Illuminate'Database'QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `contentRepository` where `contentRepository`.`id` = 15 limit 1)'
当正确时,请注意"errorInfo"缺失:
>>> $pdo = DB::connection()->getPdo();
=> PDO {#690
inTransaction: false,
attributes: [
"CASE" => NATURAL,
"ERRMODE" => EXCEPTION,
"AUTOCOMMIT" => 1,
"PERSISTENT" => false,
"DRIVER_NAME" => "mysql",
"SERVER_INFO" => "Uptime: 2589441 Threads: 13 Questions: 89348013 Slow queries: 7258017 Opens: 1604 Flush tables: 1 Open tables: 943 Queries per second avg: 34.504",
"ORACLE_NULLS" => NATURAL,
"CLIENT_VERSION" => "mysqlnd 5.0.11-dev - 20120503 - $Id: id_here $",
"SERVER_VERSION" => "5.5.5-10.0.17-MariaDB-1~wheezy-wsrep-log",
"STATEMENT_CLASS" => [
"PDOStatement",
],
"EMULATE_PREPARES" => 0,
"CONNECTION_STATUS" => "localIPhere via TCP/IP",
"DEFAULT_FETCH_MODE" => BOTH,
],
}
Show db's tables:
>>> $tables = DB::select('SHOW TABLES');
=> [
{#702
+"Tables_in_dbname": "table_name_there",
},
{#683
+"Tables_in_dbname": "table_name_there",
},
{#699
+"Tables_in_dbname": "table_name_there",
},
{#701
+"Tables_in_dbname": "table_name_there-20150917-1159",
},
{#704
+"Tables_in_dbname": "contentRepository", */ VIEW TABLE IS THERE!!!! /*
},
{#707
+"Tables_in_dbname": "table_name_there",
},
{#684
+"Tables_in_dbname": "table_name_there",
},
]
尝试正常选择:
>>> $results = DB::select('select * from dbname.contentRepository limit 1');
Illuminate'Database'QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from dbname.contentRepository limit 1)'
尝试未准备的查询:
>>> DB::unprepared('select * from dbname.contentRepository limit 1')
=> false
尝试第二次未准备的查询:
>>> DB::unprepared('select * from dbname.contentRepository limit 1')
Illuminate'Database'QueryException with message 'SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active. Consider using PDOStatement::fetchAll(). Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. (SQL: select * from dbname.contentRepository limit 1)'
试试PDOStatement:: fetchAll ():
>>> DB::fetchAll('select * from dbname.contentRepository limit 1');
PHP warning: call_user_func_array() expects parameter 1 to be a valid callback, class 'Illuminate'Database'MySqlConnection' does not have a method 'fetchAll' in /Users/luca/company/Laravel/dbname/vendor/laravel/framework/src/Illuminate/Database/DatabaseManager.php on line 296
Try second PDOStatement::fetchAll():
>>> $pdo::fetchAll('select * from dbname.contentRepository limit 1');
[Symfony'Component'Debug'Exception'FatalErrorException]
Call to undefined method PDO::fetchAll()
尝试声明…:
>>> $pdos = DB::statement('select * from dbname.contentRepository limit 1')
Illuminate'Database'QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from dbname.contentRepository limit 1)'
谢谢
添加
'options' => [
'PDO::ATTR_EMULATE_PREPARES => true
]
DB配置中的Inside projectName/config/database.php
文件。它将像这样:
'mysql' => [
'driver' => 'mysql',
'host' => env('DB_HOST', 'localhost'),
'database' => env('DB_DATABASE', 'forge'),
'username' => env('DB_USERNAME', 'forge'),
'password' => env('DB_PASSWORD', ''),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
'options' => [
'PDO::ATTR_EMULATE_PREPARES => true
]
],
5.1 Laravel。希望能有所帮助!
编辑:我目前在Laravel 8,这个解决方案仍在工作
根据接受答案中的评论,运行
SET GLOBAL table_definition_cache = 1024
在MariaDB中解决了这个问题。
https://mariadb.com/kb/en/library/server-system-variables/table_definition_cache
似乎这是一个MySQL Bug,已被记录。
编辑:你的模型使用'id'为主键吗?我喜欢在模型中显式地设置主键,即使它是。
protected $primaryKey = 'id'; // If different than id, definitely need to set the column here
您也可以尝试注释hasMany()
函数,然后再试一次。有时Laravel会在eagerLoad上做一些奇怪的事情,特别是当它试图映射到很多记录时。