有没有办法按表名获取模型？
例如，我有一个“用户”模型，其表定义为protected $table = "users"
现在，我想做的是按表名称获取模型，该名称等于“用户”。
此功能更像是Model::getTable();
我到处搜索但我找不到解决方案，也许我可能会遗漏一些简单的东西？
修改
我正在构建类似API的东西：
Route::get('/{table}', 'ApiController@api');
Route::get('/{table}/filter', 'ApiController@filter');
Route::get('/{table}/sort', 'ApiController@sort');
Route::get('/{table}/search', 'ApiController@search');
所以在地址栏中，例如当我搜索“用户”时，我可以点击网址：
api/users/search?id=1
然后在控制器上，例如：
public function search(){
// get all the params
// get the model function
$model = //function to get model by table name
// do some filtering, then return the model
return $model;
}
答案 0 :(得分：6)
也许这样的事情可以帮到你：
frame= 70 fps=0.0 q=-0.0 Lsize= 701kB time=00:00:02.33 bitrate=2465.4kbits/s speed= 2.9x
答案 1 :(得分：2)
您必须确定要调用哪个类的表名。 我看到了两种方法。
使用Laravel的模型命名约定为@IgorRynkovoy建议
或
使用某种字典
public function search($tableName)
{
$dictionary = [
'table_name' => 'CLASS_NAME_WITH_NAMESPACE',
'another_table_name' => 'CLASS_NAME_WITH_NAMESPACE',
];
$className = $dictionary[$tableName];
$models = null;
if(class_exists($className)) {
$models = $className::all();
}
// do some filtering, then return the model
return $models;
}
答案 2 :(得分：1)
我知道这是一个老问题，但它可以帮助某人：
public function getModelFromTable($table)
{
foreach( get_declared_classes() as $class ) {
if( is_subclass_of( $class, 'Illuminate\Database\Eloquent\Model' ) ) {
$model = new $class;
if ($model->getTable() === $table)
return $class;
}
}
return false;
}
它将返回类名，因此您需要实例化它。
答案 3 :(得分：0)
替代变体。 我有基本模型App \ Models \ Model 该模型具有静态方法getModelByTable，当然您可以将其存储在所需的任何位置。
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Thin web server (v1.7.2 codename Bachmanity)
Maximum connections set to 1024
Listening on 0.0.0.0:3030, CTRL+C to stop
{ 47249764683760 rufus-scheduler intercepted an error:
47249764683760 job:
47249764683760 Rufus::Scheduler::EveryJob "10s" {:first_in=>0}
47249764683760 error:
47249764683760 47249764683760
47249764683760 JSON::ParserError
47249764683760 784: unexpected token at '<html>
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<body><h2>HTTP ERROR 404</h2>
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47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/2.3.0/json/common.rb:156:in `parse'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/2.3.0/json/common.rb:156:in `parse'
47249764683760 /home/smashing/my-project/jobs/jenkins_build.rb:41:in `get_json_for_job'
47249764683760 /home/smashing/my-project/jobs/jenkins_build.rb:48:in `block (2 levels) in <top (required)>'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rufus-scheduler-3.4.2/lib/rufus/scheduler/jobs.rb:210:in `do_call'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rufus-scheduler-3.4.2/lib/rufus/scheduler/jobs.rb:254:in `trigger_now'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rufus-scheduler-3.4.2/lib/rufus/scheduler/jobs.rb:296:in `block (3 levels) in start_work_thread'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rufus-scheduler-3.4.2/lib/rufus/scheduler/jobs.rb:299:in `block (2 levels) in start_work_thread'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rufus-scheduler-3.4.2/lib/rufus/scheduler/jobs.rb:285:in `loop'
47249764683760 /home/smashing/.rbenv/versions/2.3.7/lib/ruby/gems/2.3.0/gems/rufus-scheduler-3.4.2/lib/rufus/scheduler/jobs.rb:285:in `block in start_work_thread'
47249764683760 tz:
47249764683760 ENV['TZ']:
47249764683760 Time.now: 2019-07-05 17:03:56 +0530
47249764683760 local_tzone: #<TZInfo::DataTimezone: Asia/Kolkata>
47249764683760 et-orbi:
47249764683760 (etz:nil,tnz:"IST",tziv:"2.0.0",tzidv:nil,rv:"2.3.7",rp:"x86_64-linux",win:false,rorv:nil,astz:nil,eov:"1.2.1",eotnz:#<TZInfo::DataTimezone: Asia/Kolkata>,eotnfz:"+0530",eotlzn:"Asia/Kolkata",eotnfZ:"IST",debian:nil,centos:nil,osx:"Asia/Kolkata")
47249764683760 scheduler:
47249764683760 object_id: 47249768596520
47249764683760 opts:
47249764683760 {}
47249764683760 frequency: 0.3
47249764683760 scheduler_lock: #<Rufus::Scheduler::NullLock:0x000055f263588260>
47249764683760 trigger_lock: #<Rufus::Scheduler::NullLock:0x000055f263588030>
47249764683760 uptime: 0.30658841133117676 (306)
47249764683760 down?: false
47249764683760 threads: 2
47249764683760 thread: #<Thread:0x000055f263585f88>
47249764683760 thread_key: rufus_scheduler_47249768596520
47249764683760 work_threads: 1
47249764683760 active: 1
47249764683760 vacant: 0
47249764683760 max_work_threads: 28
47249764683760 mutexes: {}
47249764683760 jobs: 4
47249764683760 at_jobs: 0
47249764683760 in_jobs: 0
47249764683760 every_jobs: 4
47249764683760 interval_jobs: 0
47249764683760 cron_jobs: 0
47249764683760 running_jobs: 1
47249764683760 work_queue: 0
} 47249764683760 .
答案 4 :(得分：0)
studly_case()和str_singular()是不推荐使用的功能。
您可以使用Illuminate\Support\Str门面。
$className = 'App\\' . Str::studly(Str::singular($tableName));
答案 5 :(得分：0)
从以下继承，而不是从 Model 继承。
$ruta = 'pila/' . $anio . '/' . $mes;
$nombreArchivo = date('Y-m-d H:i:s') . '_' . $datosEmpresa['TIDE'] . '_' . $datosEmpresa['IDEM'] . '_' . $datosEmpresa['OPERADOR'] . '_' . $datosEmpresa['PERIODO'] . '_' . $datosEmpresa['TIPOPLANILLA'] . '_TIPO_2.txt';
$archivo = $ruta . '/' . $nombreArchivo;
$contenido = null;
/* - - - - - - - - - - - - - - - - - *
* REGISTRO TIPO 1 *
* - - - - - - - - - - - - - - - - - */
$campo1 = '01';
$campo2 = str_pad($datosEmpresa['MPLA'], 1);
$campo3 = str_pad('0001', 4);
$campo4 = str_pad($datosEmpresa['RASO'], 200);
$campo5 = str_pad($datosEmpresa['TIDE'], 2);
$campo6 = str_pad($datosEmpresa['IDEM'], 16);
$campo7 = str_pad($datosEmpresa['DIGV'], 1);
$campo8 = str_pad($datosEmpresa['TIPOPLANILLA'], 1);
$campo9 = str_pad($datosEmpresa['PLANILLAANTERIOR'], 10);
$campo10 = str_pad($datosEmpresa['FECHAPLANILLAANT'], 10);
$campo11 = str_pad($datosEmpresa['PRESENTACION'], 1);
$campo12 = str_pad($datosEmpresa['CODSUCURSAL'], 10);
$campo13 = str_pad($datosEmpresa['NOMSUCURSAL'], 40);
$campo14 = str_pad($datosEmpresa['CARL'], 6);
$campo15 = str_pad($datosEmpresa['PERIODO'], 7);
$campo16 = str_pad($datosEmpresa['PERIODOSALUD'], 7);
$campo17 = str_pad(" ", 10); //PLANILLA
$campo18 = str_pad(" ", 10); //FECHA PAGO
$campo19 = str_pad(count($datosTrabajador), 5, '0', STR_PAD_LEFT);
$campo20 = str_pad($datosEmpresa['TOTALNOMINA'], 12, '0', STR_PAD_LEFT);
$campo21 = str_pad($datosEmpresa['TAPO'], 2);
$campo22 = str_pad($datosEmpresa['OPERADOR'], 2);
$contenido .= $campo1 . $campo2 . $campo3 . $campo4 . $campo5 . $campo6 . $campo7 . $campo8 . $campo9 . $campo10 . $campo11 . $campo12 . $campo13 . $campo14 . $campo15 . $campo16 . $campo17 . $campo18 . $campo19 . $campo20 . $campo21 . $campo22;
Storage::append($archivo, $contenido);
要覆盖自动猜测的表名，请将其添加到您的 EnhancedModel 后代类中：
use Illuminate\Support\Str;
class EnhancedModel extends \Illuminate\Database\Eloquent\Model
{
/**
* The table associated with the model. Copies $table in Model
*
* @var string
*/
protected static string $tableName;
/**
* Get the table associated with the model. Copies getTable() in Model
*
* @return string
*/
public static function getTableName(): string
{
return static::$tableName ?? Str::snake(Str::pluralStudly(class_basename(static::class)));
}
/**
* Get the table associated with the model. Overrides getTable() in Model
*
* @return string
*/
public function getTable(): string
{
return $this::getTableName();
}
}
答案 6 :(得分：0)
看起来 Laravel 6 做了一些改变。以下对我来说很好
use Illuminate\Support\Str;
....
$className = 'App\\' . Str::studly(str::singular($table_name));
if(class_exists($className)) {
$model = new $className;
}