blocks|key|270513|text|是的，帮助器可以包含额外的方法。要调用它们，您必须获得帮助器实例。这可以通过在视图中获取助手实例来实现|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|270514|$genderHelper+=+$this->getHelper('Gender');
echo+$genderHelper->otherMethod();|code-block|syntax|javascript|270515|或者让helper从主helper方法返回自身：|270516|class+My_View_Helper_Gender+extends+Zend_View_Helper_Abstract
{
++public+function+Gender()
++{
++++return+$this;
++}
++//+…+more+code
}|270517|然后调用$this->gender()->otherMethod()|CODE|270518|因为视图帮助器包含对视图对象的引用，所以您也可以从视图帮助器中调用任何可用的视图帮助器，例如|270519|+public+function+Gender()
+{
+++++echo+$this->view->translate('gender');
+++++//+…+more+code
+}|270520|entityMap^0|3|C|0|0|0|0|4|U|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|11|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|13|8|@$9|14|A|15|B|Q]]|D|@]|E|$]]|$1|R|3|S|5|6|7|16|8|@]|D|@]|E|$]]|$1|T|3|U|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|V|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|W|$]]

Yes, helpers can contain additional methods. To call them, you have to get hold of the helper instance. This can be achieved either by getting a helper instance in the View

<pre><code>$genderHelper = $this-&gt;getHelper('Gender');
echo $genderHelper-&gt;otherMethod();
</code></pre>

or by having the helper return itself from the main helper method:

<pre><code>class My_View_Helper_Gender extends Zend_View_Helper_Abstract
{
 public function Gender()
 {
 return $this;
 }
 // … more code
}
</code></pre>

and then call <code>$this-&gt;gender()-&gt;otherMethod()</code>

Because View Helpers contain a reference to the View Object, you can call any available View Helpers from within a View Helper as well, e.g.

<pre><code> public function Gender()
 {
 echo $this-&gt;view-&gt;translate('gender');
 // … more code
 }
</code></pre>

blocks|key|270525|text|没有这样的规定，但您可以对其进行自定义。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|270526|也许你可以将第一个参数作为函数名传递并调用它。|270527|例如：|270528|$this->公共函数(‘showGender’，$name)|270529|其中showGender将是CommonFunction类中定义的函数，$name将是parametr|270530|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

There is no such provision but you can customize it.

May be you can pass the first parameter as function name and call it.

e.g.

$this->CommonFunction('showGender', $name)

here showGender will be function defined in CommonFunction class and $name will be parametr

blocks|key|2967235|text|这是对戈登建议的修改，以便能够使用更多的帮助器实例(每个实例都有自己的属性)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2967236|class+My_View_Helper_Factory+extends+Zend_View_Helper_Abstract+{
++++private+static+$instances+=+array();
++++private+$options;

++++public+static+function+factory($id)+{
++++++++if+(!array_key_exists($id,+self::$instances))+{
++++++++++++self::$instances[$id]+=+new+self();
++++++++}
++++++++return+self::$instances[$id];
++++}

++++public+function+setOptions($options+=+array())+{
++++++++$this->options+=+$options;
++++++++return+$this;
++++}

++++public+function+open()+{
+++++++//...
++++}

++++public+function+close()+{
+++++++//...
++++}
}|code-block|syntax|javascript|2967237|你可以这样使用helper：|2967238|$this->factory('instance_1')->setOptions($options[1])->open();
//...
++++$this->factory('instance_2')->setOptions($options[2])->open();
++++//...
++++$this->factory('instance_2')->close();
//...
$this->factory('instance_1')->close();|2967239|编辑:这是一种称为Multiton的设计模式(类似Singleton，但您可以获得更多实例，每个给定的键一个实例)。|2967240|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This is modification of Gordon's suggestion to be able to use more instances of the helper (each with own properties):

<pre><code>class My_View_Helper_Factory extends Zend_View_Helper_Abstract {
 private static $instances = array();
 private $options;

 public static function factory($id) {
 if (!array_key_exists($id, self::$instances)) {
 self::$instances[$id] = new self();
 }
 return self::$instances[$id];
 }

 public function setOptions($options = array()) {
 $this-&gt;options = $options;
 return $this;
 }

 public function open() {
 //...
 }

 public function close() {
 //...
 }
}
</code></pre>

You can use helper this way:

<pre><code>$this-&gt;factory('instance_1')-&gt;setOptions($options[1])-&gt;open();
//...
 $this-&gt;factory('instance_2')-&gt;setOptions($options[2])-&gt;open();
 //...
 $this-&gt;factory('instance_2')-&gt;close();
//...
$this-&gt;factory('instance_1')-&gt;close();
</code></pre>

Edit: This is a design pattern called Multiton (like Singleton, but you can get more instances, one per given key).

<pre><code>class My_View_Helper_Gender extends Zend_View_Helper_Abstract
{
 public function Gender()
 {
 //
 }
}

"The class method (Gender()) must be named identically to the concliding part 
 of your class name(Gender).Likewise,the helper's file name must be named 
 identically to the method,and include the .php extension(Gender.php)"
 (Easyphp websites J.Gilmore)
</code></pre>

My question is:
Can A view Helper contain more than one method?And can I call other view helpers from within my helper?

thanks

Luca

zend view helper with multiple methods?

class My_View_Helper_Gender extends Zend_View_Helper_Abstract{  public function Gender()  {    //  }}"The class method (Gender()) must be named identically to t...

问有多个方法的zend view helper？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问有多个方法的zend view helper？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问有多个方法的zend view helper？
EN