php - 如何使用 Laravel 通过外键检索所有记录

Question

我正在尝试使用 Laravel 显示与外键 ID 匹配的所有表记录。但是，我的查询没有将任何记录拉入 View 。

如何找到与传入函数的外键 ID 匹配的所有记录？

routes.php:

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);
    }

views/quotes/index.blade.php:

<h2> Quotes </h2>

@foreach($quotes as $quote)

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

@endforeach

models/Quote.php

class Quote extends Eloquent {

    public $timestamps = false;

    protected $table = 'quote';

    protected $primaryKey = 'idquote';

}

models/Persona.php

class Persona extends Eloquent {


    public $timestamps = false;

    protected $table = 'persona';

    protected $primaryKey = 'idPersona';


}

我有 2 个表，Persona 和 Quote，我正在尝试提取与外键 idPersona 匹配的所有引号:

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

如果你正在使用 Eloquent，你必须从它强大的 ORM 中获益，要获得所有属于特定用户的报价，你必须首先声明关系:

models/Persona.php

class Persona extends Eloquent {


    public $timestamps = false;

    protected $table = 'persona';

    protected $primaryKey = 'idPersona';

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

}

models/Quote.php

class Quote extends Eloquent {

    public $timestamps = false;

    protected $table = 'quote';

    protected $primaryKey = 'idquote';

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

然后您可以使用我们上面定义的关系简单地获得包含所有相关引用的所需角色:

QuoteController.php

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