Laravel:一般错误:1615 Prepared statement需要重新准备 [英] Laravel: General error: 1615 Prepared statement needs to be re-prepared
问题描述
我在宅基地虚拟机 (vagrant) 中使用最新版本的 laravel (5.1).
I'm using last version of laravel (5.1) in a homestead virtual machine (vagrant).
我将我的项目连接到本地 mariaDB 服务器，其中我有一些表和 2 个 db-view.
I connect my project to a local mariaDB server, in which I have some table and 2 db-view.
由于我仅在 db-view 表上进行了一些选择，因此我随机收到此错误:
Since I made some select only on the db-view tables, I receive back randomly this error:
一般错误:1615 Prepared statement需要重新准备
General error: 1615 Prepared statement needs to be re-prepared
从今天开始，当只在数据库视图上进行选择时，我总是会收到此错误.如果我打开我的 phpMyAdmin 并进行相同的选择，它会返回正确的结果.
From today, I always get this error when made select only on the db views. If I open my phpMyAdmin and make the same select it return the correct result.
我试图打开 php artisan tinker 并选择 db-view 的一条记录，但它返回相同的错误:
I tried to open php artisan tinker and select one record of the db-view but it return the same error:
// Select one user from user table
>>> $user = new AppUser
=> <AppUser #000000006dc32a890000000129f667d2> {}
>>> $user = AppUser::find(1);
=> <AppUser #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 AppSource
=> <AppSource #000000006dc32a820000000129f667d2> {}
>>> $source = AppSource::find(1);
IlluminateDatabaseQueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `sources` where `sources`.`id` = 1 limit 1)'
我该如何解决这个问题?我读到了 mysqldump 的一个问题(但在我的情况下不是)并增加了 table_definition_cache 的值，但不确定它是否会起作用，我无法修改它们.
How can I fix that?
I read about a problem with mysqldump (but not in my case) and to increase value of table_definition_cache but it is not sure that it will work and I can't modify them.
这是一种 laravel 的 bug 吗?
Is this a kind of laravel bug?
我怎么知道?
按照要求，我添加了我的模型源代码.源码.php:
As asked, I add my model source code. Source.php:
<?php
namespace App;
use IlluminateDatabaseEloquentModel;
class Source extends Model
{
protected $table = 'sources';
/*
|--------------------------------------------------------------------------
| FOREIGN KEYS
|--------------------------------------------------------------------------
*/
/**
*
* @return [type] [description]
*/
public function customersList(){
return $this->hasMany("AppCustomerSource", "sourceId", "id");
}
/**
*
* @return [type] [description]
*/
public function issues(){
return $this->hasMany("AppIssue", "sourceId", "id");
}
}
<小时>
编辑 2:
Edit 2:
如果我在项目中使用 mysqli 执行相同的查询，它会起作用:
If I execute the same query in the project with mysqli it works:
$db = new mysqli(getenv('DB_HOST'), getenv('DB_USERNAME'), getenv('DB_PASSWORD'), getenv('DB_DATABASE'));
if($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());
<小时>
编辑 3:2个月后，我还在.同样的错误，没有找到解决方案.我决定在 aritsan tinker 中尝试一个小解决方案，但没有好消息.我报告了我的尝试:
EDIT 3: Afeter 2 month, I'm still there. Same error and no solution found. I decide to try a little solution in aritsan tinker but no good news. I report what I've tried:
首先尝试获取一个表模型:
First try to fetch a table model:
>>> $user = AppUser::find(1);
=> AppUser {#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:
Now try to fetch a view table model:
>>> $ir = AppContentRepository::find(15);
IlluminateDatabaseQueryException 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 在模型 ContentRepository.php 中没有正确的表名设置时:
When contentRepository doesn't have correct table name setup inside the model 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,
],
}
>>>
在模型 ContentRepository.php 中更改表值:
CHANGE TABLE VALUE INSIDE model ContentRepository.php:
>>> $ir = AppContentRepository::find(15);
IlluminateDatabaseQueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `contentRepository` where `contentRepository`.`id` = 15 limit 1)'
正确时，注意缺少的errorInfo":
>>> $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,
],
}
显示 db 的表:
>>> $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');
IlluminateDatabaseQueryException 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:
Try second time unprepared query:
>>> DB::unprepared('select * from dbname.contentRepository limit 1')
IlluminateDatabaseQueryException 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():
Try 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 'IlluminateDatabaseMySqlConnection' does not have a method 'fetchAll' in /Users/luca/company/Laravel/dbname/vendor/laravel/framework/src/Illuminate/Database/DatabaseManager.php on line 296
尝试第二个 PDOStatement::fetchAll():
Try second PDOStatement::fetchAll():
>>> $pdo::fetchAll('select * from dbname.contentRepository limit 1');
[SymfonyComponentDebugExceptionFatalErrorException]
Call to undefined method PDO::fetchAll()
Try 语句...:
>>> $pdos = DB::statement('select * from dbname.contentRepository limit 1')
IlluminateDatabaseQueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from dbname.contentRepository limit 1)'
谢谢
推荐答案
好像可以添加
'options' => [
PDO::ATTR_EMULATE_PREPARES => true
]
在数据库配置中的 projectName/config/database.php 文件中.会是这样的:
Inside projectName/config/database.php file in DB configuration. It will be like this:
'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
]
],
Laravel 5.1.希望对您有所帮助！
Laravel 5.1. Hope it will help!
我目前在 Laravel 8 上，这个解决方案仍然有效.
I'm currently on Laravel 8 and this solution is still working.
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