How to remove Add button from Admin Grid conditionally?

Question

I want to remove "Add new" Button from Admin Grid conditionally. Condition is if it has flag for adding then button will display otherwise not

Kindly help.

Thanks.

Answer 1

I will try to shed light on how the Add New button in the Catalog -> Product grid is displayed and what can be maybe done about it.

If you open file

/app/code/core/Mage/Adminhtml/Block/Catalog/Product

you will notice that this class extends

Mage_Adminhtml_Block_Widget_Container

This Container class provides the method

_addButton()

which as its first parameter accepts string: the button ID.

So, take a look at the method prepareLayout and you will notice

$this->_addButton('add_new', array(
        'label'   => Mage::helper('catalog')->__('Add Product'),
        'onclick' => "setLocation('{$this->getUrl('*/*/new')}')",
        'class'   => 'add'
    ));

After this the button id is: add_new

The Container class also provides a method

_removeButton()

which accepts only one attribute: the button ID

This given, you should probably override the block that defines the button.

In more details, override the _prepareLayout method and use the _addButton conditionally in the first place (so you don't have to remove at all).

Or in other cases, where applicable, just call

$this->_removeButton($button_id)

In my example it would be

$this->_removeButton("add_new")

Of course, you can enclose this code in IF statement with whatever condition you need.