Magento – How to validate field type checkboxes in system.xml

system.xml

I am using magento 1.9.
In my custome module, In system.xml added field type checkboxes.

<show_featuredproduct translate="label">
    <label>Show Featured Product On</label>
    <frontend_type>checkboxes</frontend_type>
    <source_model>adminhtml/system_config_source_frequency</source_model>
    <validate>validate-one-required</validate>
    <sort_order>1</sort_order>
    <show_in_default>1</show_in_default>
    <show_in_website>1</show_in_website>
    <show_in_store>1</show_in_store>
 </show_featuredproduct>

I want to add validation for this field. I used <validate>validate-one-required</validate> but its not working.
Any Idea?

Best Answer

It's likely not working for 1 of 2 reasons:

1. The class isn't being applied to the input elements.

If this the case, try using <frontend_class>validate-one-required</frontend_class> instead, and see whether that applies the class.

2. The `validate-one-required` rule isn't working as expected.

You can try using validate-one-required-by-name instead, which Magento seems to use frequently with other sets of checkboxes.

Try one (or both) combinations, and hopefully that'll do the trick.

Related Solutions

Magento 1.7 – How to Add a Date Field in system.xml

If you add the following in your system.xml

<frontend_type>text</frontend_type>
<frontend_model>namespace_module/adminhtml_system_config_date</frontend_model>

Then create the following file:

app/code/[codePool]/Namespace/Module/Block/Adminhtml/System/Config/Date.php

class Namespace_Module_Block_Adminhtml_System_Config_Date extends Mage_Adminhtml_Block_System_Config_Form_Field
{
    protected function _getElementHtml(Varien_Data_Form_Element_Abstract $element)
    {
        $date = new Varien_Data_Form_Element_Date();
        $format = Mage::app()->getLocale()->getDateFormat(Mage_Core_Model_Locale::FORMAT_TYPE_SHORT);

        $data = array(
            'name'      => $element->getName(),
            'html_id'   => $element->getId(),
            'image'     => $this->getSkinUrl('images/grid-cal.gif'),
        );
        $date->setData($data);
        $date->setValue($element->getValue(), $format);
        $date->setFormat(Mage::app()->getLocale()->getDateFormat(Mage_Core_Model_Locale::FORMAT_TYPE_SHORT));
        $date->setForm($element->getForm());

        return $date->getElementHtml();
    }
}

This is assuming that you already have the blocks setup for this module in the config.xml

Magento CE 1.7.0.2 – System.xml Field Dependency

Try this:

<depends>
    <field separator="|">
        <value>1|2|3</value>
    </field>
</depends>