blocks|key|1990710|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1990711|++class+RegistrationController+extends+Zend_Controller_Action
++{
++++++protected+$_form;

++++++public+function+fooAction()
++++++{
++++++++++++//+...

++++++++++++if($this->getForm()->isValid())+{+}

+++++++++++//+...
++++++}

++++++protected+function+getForm()
++++++{

++++++++++if+(null+===+$this->_form)+{
++++++++++++++$this->_form+=+new+My_Form_Registration();
++++++++++}

++++++++++return+$this->_form;
++++++}
++}|code-block|syntax|javascript|1990712|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code> class RegistrationController extends Zend_Controller_Action
 {
 protected $_form;

 public function fooAction()
 {
 // ...

 if($this-&gt;getForm()-&gt;isValid()) { }

 // ...
 }

 protected function getForm()
 {

 if (null === $this-&gt;_form) {
 $this-&gt;_form = new My_Form_Registration();
 }

 return $this-&gt;_form;
 }
 }
</code></pre>

blocks|key|1245635|text|类RegistrationController扩展Zend_Controller_Action+{+protected+$_form+=+null；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1245636|++public+function+fooAction()
++{
++++++++//+...

++++++++if($this->getForm()->isValid())+{+}

+++++++//+...
++}

++public+function+getForm()
++{
++++++$this->_form+=+(null+===+$this->_form)?+new+My_Form_Registration():$this->_form;
++++++return+$this->_form;
++}|code-block|syntax|javascript|1245637|}|1245638|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

class RegistrationController extends Zend_Controller_Action
 {
 protected $_form = null;

<pre><code> public function fooAction()
 {
 // ...

 if($this-&gt;getForm()-&gt;isValid()) { }

 // ...
 }

 public function getForm()
 {
 $this-&gt;_form = (null === $this-&gt;_form)? new My_Form_Registration():$this-&gt;_form;
 return $this-&gt;_form;
 }
</code></pre>

}

blocks|key|1248187|text|Keyne's+solution非常好，除了getForm()方法应该是protected而不是public。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1248188|通常，控制器中存在protected/private方法是您应该将它们移到操作帮助器的标志。|1248189|但是，我建议将表单与模型放在一起：|1248190|$form+=+$model->getForm();
$model->fromArray($form->getValues());
$model->save();|code-block|syntax|javascript|1248191|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/4042761/zend-form-is-it-bad-practice-to-load-a-form-in-init-of-controller/4043115#4043115^0|M|9|10|9|1C|6|0|G|0|0|9|9|J|7|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|F|3|G|5|6|7|16|8|@$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1B|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1C|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

<a href="https://stackoverflow.com/questions/4042761/zend-form-is-it-bad-practice-to-load-a-form-in-init-of-controller/4043115#4043115">Keyne's solution</a> is quite nice, except the <code>getForm()</code> method should be <code>protected</code> instead of <code>public</code>.

Usually the presence of <code>protected</code>/<code>private</code> methods in the controller is a sign you should move them to the action helper.

However, I recommend keeping the forms together with your models:

<pre><code>$form = $model-&gt;getForm();
$model-&gt;fromArray($form-&gt;getValues());
$model-&gt;save();
</code></pre>

I have a form which I need for some actions but not for others. In the actions that need it, I repeat the same code. 

<pre><code>$form = New BlaBla_Form();
</code></pre>

I've seen an example which declared it in init(). This means the form gets initialized even for actions that don't need it. It does make the code cleaner, but is it resource intensive enough to make it a bad practice?

zend_form: is it bad practice to load a form in init() of controller

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个表单，我需要它来执行一些操作，但不需要其他操作。在需要它的操作中，我重复相同的代码。$form = New BlaBla_Form();我见过一个在init()中声明它的例子。这意味着即使对于不需要它的操作，表单也会被初始化。它确实让代码变得更干净，但它的资源密集度是否足以让它成为一种糟糕的做法？

问zend_form:在控制器的init()中加载表单是不是一种坏做法
EN

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问zend_form:在控制器的init()中加载表单是不是一种坏做法EN