如何使用Laravel通过外键检索所有记录

Question

我试图使用Laravel显示所有与外键id匹配的表记录.但是,我的查询没有将任何记录拉入视图.

如何找到与传递给函数的外键id匹配的所有记录？

routes.php文件:

Route::get('/personas/{idPersona}/quotes', 'QuoteController@index');

QuoteController.php:

public function index($id)
    {
        $quotes = Quote::where('idPersona', $id)->get();
        return View::make('quotes.index')->with('quotes', $quotes);
    }

意见/报价/ index.blade.php:

<h2> Quotes </h2>

@foreach($quotes as $quote)

    <li>{{ $quote }}</li>

@endforeach

车型/ Quote.php

class Quote extends Eloquent {

    public $timestamps = false;

    protected $table = 'quote';

    protected $primaryKey = 'idquote';

}

车型/ Persona.php

class Persona extends Eloquent {


    public $timestamps = false;

    protected $table = 'persona';

    protected $primaryKey = 'idPersona';


}

我有2个表,Persona和Quote,我试图拉出所有匹配外键idPersona的引号:

CREATE TABLE `mountain`.`persona` (
  `idPersona` INT NOT NULL AUTO_INCREMENT,
  `fName` VARCHAR(45) NULL,
  `lName` VARCHAR(45) NULL,
  `mName` VARCHAR(45) NULL,
  `bio` TEXT NULL,
  `dateBorn` VARCHAR(45) NULL,
  `dateDied` VARCHAR(45) NULL,
  PRIMARY KEY (`idPersona`));

CREATE TABLE `mountain`.`quote` (
  `idquote` INT NOT NULL AUTO_INCREMENT,
  `quoteText` TEXT NOT NULL,
  `quoteSource1` VARCHAR(100) NULL,
  `quoteSource2` VARCHAR(100) NULL,
  `tag1` VARCHAR(45) NULL,
  `tag2` VARCHAR(45) NULL,
  `tag3` VARCHAR(45) NULL,
  `idPersona` INT NULL,
  PRIMARY KEY (`idquote`),
  INDEX `idPersona_idx` (`idPersona` ASC),
  CONSTRAINT `idPersona`
    FOREIGN KEY (`idPersona`)
    REFERENCES `mountain`.`persona` (`idPersona`)
    ON DELETE NO ACTION
    ON UPDATE NO ACTION);

Answer 1

如果您正在使用Eloquent,您必须获得其强大的ORM的好处,以获得属于特定用户的所有引用,您必须首先声明关系:

车型/ Persona.php

class Persona extends Eloquent {


    public $timestamps = false;

    protected $table = 'persona';

    protected $primaryKey = 'idPersona';

    function quotes() {
        return $this->hasMany('Quote', 'idquote');
    }

}

车型/ Quote.php

class Quote extends Eloquent {

    public $timestamps = false;

    protected $table = 'quote';

    protected $primaryKey = 'idquote';

    function persona() {
        return $this->belongsTo('Persona', 'idPersona');
    }
}

然后,您可以persona通过使用我们上面提到的关系来简单地获得所有相关引号的所需:

QuoteController.php

public function index($id) {
    $quotes = Persona::with('quotes')->find($id)->quotes;
    return View::make('quotes.index')->with('quotes', $quotes);
}