Tôi muốn hiển thị các trường dựa trên đầu vào đa lựa chọn đã chọn ... mã sau chỉ hoạt động, nếu chỉ có một giá trị được chọn. Nếu tôi chọn nhiều hơn thì một giá trị sẽ chỉ hiển thị một trường (được chọn đầu tiên từ mô hình nguồn)
<enabled>
<label>Enabled</label>
...
<source_model>adminhtml/system_config_source_enabledisable</source_model>
</enabled>
<!-- this gives three options - shop, ebay, amazon -->
<channels>
...
<frontend_type>multiselect</frontend_type>
<source_model>module/system_config_source_channels</source_model>
<depends>
<enabled>1</enabled>
</depends>
</channels>
<mail_template_shop>
...
<depends>
<enabled>1</enabled>
<channels>shop</channels>
</depends>
</mail_template_shop>
<mail_template_ebay>
...
<depends>
<enabled>1</enabled>
<channels>ebay</channels>
</depends>
</mail_template_ebay>
Mã liên quan:
ứng dụng / mã / lõi / Mage / adminhtml / Block / Widget / Form / Element / Dependence.php
/**
* Add misc configuration options to the javascript dependencies controller
*
* @param array $options
* @return Mage_Adminhtml_Block_Widget_Form_Element_Dependence
*/
public function addConfigOptions(array $options)
{
$this->_configOptions = array_merge($this->_configOptions, $options);
return $this;
}
/**
* HTML output getter
* @return string
*/
protected function _toHtml()
{
if (!$this->_depends) {
return '';
}
return '<script type="text/javascript"> new FormElementDependenceController('
. $this->_getDependsJson()
. ($this->_configOptions ? ', ' . Mage::helper('core')->jsonEncode($this->_configOptions) : '')
. '); </script>';
}
/**
* Field dependences JSON map generator
* @return string
*/
protected function _getDependsJson()
{
$result = array();
foreach ($this->_depends as $to => $row) {
foreach ($row as $from => $value) {
$result[$this->_fields[$to]][$this->_fields[$from]] = $value;
}
}
return Mage::helper('core')->jsonEncode($result);
}
js / mage / adminhtml / form.js
/**
* Observer that watches for dependent form elements
* If an element depends on 1 or more of other elements, it should show up only when all of them gain specified values
*/
FormElementDependenceController = Class.create();
FormElementDependenceController.prototype = {
/**
* Structure of elements: {
* 'id_of_dependent_element' : {
* 'id_of_master_element_1' : 'reference_value',
* 'id_of_master_element_2' : 'reference_value'
* 'id_of_master_element_3' : ['reference_value1', 'reference_value2']
* ...
* }
* }
* @param object elementsMap
* @param object config
*/
initialize : function (elementsMap, config)
{
if (config) {
this._config = config;
}
for (var idTo in elementsMap) {
for (var idFrom in elementsMap[idTo]) {
if ($(idFrom)) {
Event.observe($(idFrom), 'change', this.trackChange.bindAsEventListener(this, idTo, elementsMap[idTo]));
this.trackChange(null, idTo, elementsMap[idTo]);
} else {
this.trackChange(null, idTo, elementsMap[idTo]);
}
}
}
},
/**
* Misc. config options
* Keys are underscored intentionally
*/
_config : {
levels_up : 1 // how many levels up to travel when toggling element
},
/**
* Define whether target element should be toggled and show/hide its row
*
* @param object e - event
* @param string idTo - id of target element
* @param valuesFrom - ids of master elements and reference values
* @return
*/
trackChange : function(e, idTo, valuesFrom)
{
if (!$(idTo)) {
return;
}
// define whether the target should show up
var shouldShowUp = true;
for (var idFrom in valuesFrom) {
var from = $(idFrom);
if (valuesFrom[idFrom] instanceof Array) {
if (!from || valuesFrom[idFrom].indexOf(from.value) == -1) {
shouldShowUp = false;
}
} else {
if (!from || from.value != valuesFrom[idFrom]) {
shouldShowUp = false;
}
}
}
// toggle target row
if (shouldShowUp) {
var currentConfig = this._config;
$(idTo).up(this._config.levels_up).select('input', 'select', 'td').each(function (item) {
// don't touch hidden inputs (and Use Default inputs too), bc they may have custom logic
if ((!item.type || item.type != 'hidden') && !($(item.id+'_inherit') && $(item.id+'_inherit').checked)
&& !(currentConfig.can_edit_price != undefined && !currentConfig.can_edit_price)) {
item.disabled = false;
}
});
$(idTo).up(this._config.levels_up).show();
} else {
$(idTo).up(this._config.levels_up).select('input', 'select', 'td').each(function (item){
// don't touch hidden inputs (and Use Default inputs too), bc they may have custom logic
if ((!item.type || item.type != 'hidden') && !($(item.id+'_inherit') && $(item.id+'_inherit').checked)) {
item.disabled = true;
}
});
$(idTo).up(this._config.levels_up).hide();
}
}
};