Magento 1.7 – How to Add a Custom Content Block Within an Existing Content Block

magento-1.7onepage-checkoutpayment-methods

I'm trying to add a custom order attribute, that the user can define on the checkout page just after the list of the payment methods and before the button continue.

I want to do things as clean as possible, so I created my own module.

Im struggling with something I thought it would be simple but I don't succeed to find a solution.

At the moment I only need to be able to display the template file in the following block .

Mage_Checkout_Block_Onepage_Payment

I created my template file which is only displaying a stupid text for the test
app/design/defaut/defaut/template/mymodule/custom.phtml
I know that there is no problem with this file while I used it on the index action of my module

I think the main issue is that I must not do properly the xml layout declaration.

Maybe you can help me 

    <?xml version="1.0"?>
    <layout version="0.1.0">
<!-- this part is working well -->
        <mymodule_index_index>
            <reference name="content">
                <block type="mymodule/mymodule" name="mymodule" template="mymodule/custom.phtml" />
            </reference>
        </mymodule_index_index>
<!-- this part is not working at all -->
        <checkout_onepage_index>
            <reference="checkout.onepage.payment" >
                <block type="core/template" name="mymodule"  template="mymodule/custom.phtml" />
            </reference>
        </checkout_onepage_index>
    </layout>

Of course my module is well declared as the index method of my module is working.
is it my reference tag which is not good ?

Thanks in advance, this layout organisation gives me headache,

Best,

Anselme

Best Answer

David Tay answered to me via stackoverflow , thanks to him I fixed my issues, it was due to two mains reasons

  • Developer inatention
  • In the block where I wanted to add my block I was supposed to echo it

Link to the answer https://stackoverflow.com/a/30067067/613123

Copy / Paste of the answer below:

As b.enoit.be noted, you forgot the name attribute. Besides that, you also need to echo out your block. This is your update:

<checkout_onepage_index>
    <reference name="checkout.onepage.payment" >
        <block type="core/template" name="mymodule"  template="mymodule/custom.phtml" />
    </reference>
</checkout_onepage_index>

Your block is declared as a child of checkout.onepage.payment, which also has another child block (checkout.payment.methods) and this block is echoed out in the checkout.onepage.payment template (app/design/frontend/base/default/template/checkout/onepage/payment.phtml):

<form action="" id="co-payment-form">
    <fieldset>
        <?php echo $this->getChildHtml('methods') ?>
    </fieldset>
</form>

What you need to do is echo out your block some where in the checkout.onepage.payment block's template, such as:

<?php echo $this->getChildHtml('mymodule') ?>
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