Hello, look at a simple example of the realization of the payment method
Example file structure:
1) app/etc/modules/Custom_Paymentmethod.xml
2) app/code/local/Custom/Paymentmethod/etc/config.xml
3) app/code/local/Custom/Paymentmethod/etc/system.xml
4) app/code/local/Custom/Paymentmethod/sql/paymentmethod_setup/install-0.1.0.php
5) app/code/local/Custom/Paymentmethod/Helper/Data.php
6) app/code/local/Custom/Paymentmethod/Model/Paymentmethod.php
7) app/code/local/Custom/Paymentmethod/Block/Form/Paymentmethod.php
8) app/design/frontend/theme/default/template/paymentmethod/paymentmethod.phtml
9) app/code/local/Custom/Paymentmethod/Block/Info/Paymentmethod.php
We will create all files step by step
1) We will create the module file "Custom_Paymentmethod.xml" in "app/etc/modules/" folder with the following content
<?xml version="1.0"?>
<config>
<modules>
<Custom_Paymentmethod>
<active>true</active>
<codePool>local</codePool>
<depends>
<Mage_Payment />
</depends>
</Custom_Paymentmethod>
</modules>
</config>
2) Then we will create module configuration file "config.xml" in folder "app/code/local/Custom/Paymentmethod/etc/" folder with the following content
<?xml version="1.0"?>
<config>
<modules>
<Custom_Paymentmethod>
<version>0.1.0</version>
</Custom_Paymentmethod>
</modules>
<global>
<fieldsets>
<sales_convert_quote_payment>
<cstm_paymentamnt>
<to_order_payment>*</to_order_payment>
</cstm_paymentamnt>
</sales_convert_quote_payment>
</fieldsets>
<helpers>
<paymentmethod>
<class>Custom_Paymentmethod_Helper</class>
</paymentmethod>
</helpers>
<blocks>
<paymentmethod>
<class>Custom_Paymentmethod_Block</class>
</paymentmethod>
</blocks>
<models>
<paymentmethod>
<class>Custom_Paymentmethod_Model</class>
</paymentmethod>
</models>
<resources>
<paymentmethod_setup>
<setup>
<module>Custom_Paymentmethod</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</paymentmethod_setup>
<paymentmethod_write>
<use>core_write</use>
</paymentmethod_write>
<paymentmethod_read>
<use>core_read</use>
</paymentmethod_read>
</resources>
</global>
<default>
<payment>
<paymentmethod>
<active>1</active>
<model>paymentmethod/paymentmethod</model>
<order_status>pending</order_status>
<title>PaymentMethod</title>
<allowspecific>0</allowspecific>
<payment_action>sale</payment_action>
</paymentmethod>
</payment>
</default>
<frontend>
<routers>
<paymentmethod>
<use>standard</use>
<args>
<module>Custom_Paymentmethod</module>
<frontName>paymentmethod</frontName>
</args>
</paymentmethod>
</routers>
</frontend>
</config>
3) Create module system configuration file needed for backend settings "system.xml" in folder "app/code/local/Custom/Paymentmethod/etc/" folder with the following content
<?xml version="1.0"?>
<config>
<sections>
<payment>
<groups>
<paymentmethod translate="label" module="paymentmethod">
<label>New custom payment</label>
<sort_order>100</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
<fields>
<title translate="label">
<label>Title</label>
<frontend_type>text</frontend_type>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
<sort_order>1</sort_order>
</title>
<active translate="label">
<label>Enabled</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
<sort_order>2</sort_order>
</active>
<order_status translate="label">
<label>New order status</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_order_status</source_model>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>0</show_in_store>
<sort_order>3</sort_order>
</order_status>
</fields>
</paymentmethod>
</groups>
</payment>
</sections>
</config>
4) Now, we need to create the custom table fields to store the values. To modify the table we need to create the mysql installation file "install-0.1.0.php" in "app/code/local/Custom/Paymentmethod/sql/paymentmethod_setup/" folder with the following content
<?php
$installer = $this;
$installer->startSetup();
$installer->run("
ALTER TABLE `{$installer->getTable('sales/quote_payment')}`
ADD `cstm_paymentamnt` VARCHAR( 255 ) NOT NULL;
ALTER TABLE `{$installer->getTable('sales/order_payment')}`
ADD `cstm_paymentamnt` VARCHAR( 255 ) NOT NULL;
");
$installer->endSetup();
5) Create helper file "Data.php" in "app/code/local/Custom/Paymentmethod/Helper/" with the following content
<?php
class Custom_Paymentmethod_Helper_Data extends Mage_Core_Helper_Abstract
{}
6) Create model file "Paymentmethod.php" of the module inside folder "app/code/local/Custom/Paymentmethod/Model/" with the following content
<?php
class Custom_Paymentmethod_Model_Paymentmethod extends Mage_Payment_Model_Method_Abstract
{
protected $_code = 'paymentmethod';
protected $_formBlockType = 'paymentmethod/form_paymentmethod';
protected $_infoBlockType = 'paymentmethod/info_paymentmethod';
public function assignData($data)
{
if (!($data instanceof Varien_Object)) {
$data = new Varien_Object($data);
}
$info = $this->getInfoInstance();
if ($data->getCstmPaymentamnt())
{
$info->setCstmPaymentamnt($data->getCstmPaymentamnt());
}
return $this;
}
public function validate()
{
parent::validate();
$info = $this->getInfoInstance();
if (!$info->getCstmPaymentamnt())
{
$errorCode = 'invalid';
$errorMsg = $this->_getHelper()->__("Payment amount is required.");
}
if ($errorMsg)
{
Mage::throwException($errorMsg);
}
return $this;
}
}
7) Now, create block file "Paymentmethod.php" in which we assign template file to show content in "app/code/local/Custom/Paymentmethod/Block/Form/" folder with the following content
<?php
class Custom_Paymentmethod_Block_Form_Paymentmethod extends Mage_Payment_Block_Form
{
protected function _construct()
{
parent::_construct();
$this->setTemplate('paymentmethod/form/paymentmethod.phtml');
}
}
8) Create template file "paymentmethod.phtml" which is needed to show the payment form on selection of the payment method "app/design/frontend/theme/default/template/paymentmethod/"
<?php $_code=$this->getMethodCode(); ?>
<div class="form-list" id="payment_form_<?php echo $_code; ?>" style="display:none;">
<div>
<label><?php echo $this->__('Custom Amount') ?>*</label>
<span>
<input type="text" title="<?php echo $this->__('Custom amount') ?>" name="payment[cstm_paymentamnt]" value="<?php echo $this->htmlEscape($this->getInfoData('cstm_paymentamnt')) ?>" id="<?php echo $_code ?>_cstm_paymntamnt" />
</span>
</div>
</div>
<div>
<?php echo $this->getMethod()->getConfigData('message');?>
</div>
9) Create file Block file "Paymentmethod.php" which is needed to show the custom amount price in sidebar of the checkout page "app/code/local/Custom/Paymentmethod/Block/Info/" with the following content
<?php
class Custom_Paymentmethod_Block_Info_Paymentmethod extends Mage_Payment_Block_Info
{
protected function _prepareSpecificInformation($transport = null)
{
if (null !== $this->_paymentSpecificInformation)
{
return $this->_paymentSpecificInformation;
}
$info = $this->getInfo();
$transport = new Varien_Object();
$transport = parent::_prepareSpecificInformation($transport);
$transport->addData(array(
Mage::helper('payment')->__('Payment Amount') => $this->getInfo()->getCstmPaymentamnt(),
));
return $transport;
}
}
