Magento - Add button [+ Add Field] that adds/shows a new text field in system.xml -


i have custom module optional text fields (shown via standard text field option in system.xml). i'd show 1 mandatory text field , have button says [+ add field]. when button pressed, text field added. i'd up to 10 total text fields (max). can me accomplish or point me nice tutorial on how this?

edit 7/10/12 @ 11:30am

i've been working on , far can text fields show up. have few issues...

  1. when pressing "save config" button, none of values entered in these dynamically created textfields save.
  2. is there way limit how many text fields save?
  3. i'm unsure of correct way retrieve text field(s) data. due fact cannot save values...(i add update after #1 fixed if need this...)

my system.xml file has in (directly related this)..

<labels translate="label"> <label>this label</label> <comment>this comment.</comment> <tooltip><![cdata[this tooltip]]></tooltip> <frontend_type>text</frontend_type> <frontend_model>company_namespace/adminhtml_textfields</frontend_model> <backend_model>adminhtml/system_config_backend_serialized</backend_model> <sort_order>50</sort_order> <show_in_default>1</show_in_default> <show_in_website>1</show_in_website> <show_in_store>0</show_in_store> </labels>

my custom textfields.php (frontend_model) file contents:

<?php class company_namespace_block_adminhtml_textfields extends mage_adminhtml_block_system_config_form_field { protected $_addrowbuttonhtml = array(); protected $_removerowbuttonhtml = array(); protected function _getelementhtml(varien_data_form_element_abstract $element) { $this->setelement($element); $html = '<div id="code_label_textfields_template" style="display:none">'; $html .= $this->_getrowtemplatehtml(); $html .= '</div>'; $html .= '<ul id="code_label_textfields_container">'; if ($this->_getvalue('method')) { foreach ($this->_getvalue('method') $i=>$f) { if ($i) { $html .= $this->_getrowtemplatehtml($i); } } } $html .= '</ul>'; $html .= $this->_getaddrowbuttonhtml('code_label_textfields_container', 'code_label_textfields_template', $this->__('button label here')); return $html; } protected function _getrowtemplatehtml() { $html = '<li>'; $html .= '<div style="margin:5px 0 10px;">'; $html .= '<input class="input-text" name="'.$this->getelement()->getname().'" value="'.$this->_getvalue('price/'.$i).'" '.$this->_getdisabled().'/> '; $html .= $this->_getremoverowbuttonhtml(); $html .= '</div>'; $html .= '</li>'; return $html; } protected function _getdisabled() { return $this->getelement()->getdisabled() ? ' disabled' : ''; } protected function _getvalue($key) { return $this->getelement()->getdata('value/'.$key); } protected function _getselected($key, $value) { return $this->getelement()->getdata('value/'.$key)==$value ? 'selected="selected"' : ''; } protected function _getaddrowbuttonhtml($container, $template, $title='add') { if (!isset($this->_addrowbuttonhtml[$container])) { $this->_addrowbuttonhtml[$container] = $this->getlayout()->createblock('adminhtml/widget_button') ->settype('button') ->setclass('add '.$this->_getdisabled()) ->setlabel($this->__($title)) //$this->__('add') ->setonclick("element.insert($('".$container."'), {bottom: $('".$template."').innerhtml})") ->setdisabled($this->_getdisabled()) ->tohtml(); } return $this->_addrowbuttonhtml[$container]; } protected function _getremoverowbuttonhtml($selector='li', $title='remove') { if (!$this->_removerowbuttonhtml) { $this->_removerowbuttonhtml = $this->getlayout()->createblock('adminhtml/widget_button') ->settype('button') ->setclass('delete v-middle '.$this->_getdisabled()) ->setlabel($this->__($title)) //$this->__('remove') ->setonclick("element.remove($(this).up('".$selector."'))") ->setdisabled($this->_getdisabled()) ->tohtml(); } return $this->_removerowbuttonhtml; } }

what missing, saving values???

refer system.xml , mage_googlecheckout_block_adminhtml_shipping_merchant block example. it's little convoluted, works. can see in merchant calculated settings in google checkout.


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