Symfony and Omines DataTable component

Question

我有以下问题：

->createAdapter(ORMAdapter::class, [
'entity' => Systems::class,
'query' => function (QueryBuilder $builder) {
$builder
->select('systems')
->from(Systems::class, 'systems')
->orderBy('systems.level', 'ASC')
->addorderBy('systems.label', 'ASC')
->andwhere('systems.territory = :SearchTerritory')
->setParameter('SearchTerritory', 'Independent');
},

这样的代码是有效的，但当我用变量$territory替换"Independent"时，它就不起作用了，消息是变量没有声明。在创建数据表之前转储变量表明变量设置正确，因此全局控制器变量不会发送到数据表，我不知道如何发送。

这是完整的代码：

public function territoryList($territory, Environment $twig, Request $request)
{
$table = $this->createDataTable()
->add('label', TextColumn::class, ['label' => 'Name'])
->add('level', TextColumn::class, ['label' => 'Level'])
->add('coordinates', TextColumn::class, ['label' => 'Coordinates'])
->add('territory', TextColumn::class, ['label' => 'Territory'])
->add('missions', BoolColumn::class, ['label' => 'M', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->add('parsteel', BoolColumn::class, ['label' => 'PS', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->add('tritanium', BoolColumn::class, ['label' => 'TT', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->add('dilithium', BoolColumn::class, ['label' => 'DL', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->add('rawgas', BoolColumn::class, ['label' => 'RG', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->add('rawcrystal', BoolColumn::class, ['label' => 'RC', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->add('rawore', BoolColumn::class, ['label' => 'RO', 'searchable' => false, 'trueValue' => '<i class="fas fa-check"></i>', 'falseValue' => '<i class="fas fa-times"></i>'])
->createAdapter(ORMAdapter::class, [
'entity' => Systems::class,
'query' => function (QueryBuilder $builder) {
$builder
->select('systems')
->from(Systems::class, 'systems')
->orderBy('systems.level', 'ASC')
->addorderBy('systems.label', 'ASC')
->andwhere('systems.territory = :SearchTerritory')
->setParameter('SearchTerritory', 'Independent');
},

])
->handleRequest($request);
if ($table->isCallback()) {
return $table->getResponse();
}

没有树枝渲染等

Answer 1

在PHP中，匿名函数，如作为query参数提供的回调，是私有范围的，不能隐式访问外部变量。请参阅PHP文档中关于从父作用域继承变量的部分以供参考。

要导入$territories变量，您必须use它，即

'query' => function (QueryBuilder $builder) use ($territories) { ...