Attribute File - Update value on page load...

[Alex Clarke]

I'm trying to update the value within an Attribute File edit box on my product pages.

Instead of having the user specify a file to upload I would like to insert a dynamic path and filename.

So far I have created an on_load_main.js file within the modules directory for the page in question. This file contains the code below.

document.forms.cart_quantity.id[TEXT_PREFIX5].value = 'test';

When I reload the page the above code does not work. It appears that id[TEXT_PREFIX5] is invalid (or atleast unknow to the Javascript).

If I change id[TEXT_PREFIX5] to cart_quantity the quantity box (above the 'Add to Cart' button) is updated. So, I know that the Javascript is being processed.

Anyone know of a solution?

[DrByte]

Two things to note:

a) if you add more attributes to that product, the "5" may change to a different number
b) TEXT_PREFIX is a PHP constant. You will have to use its definition of "txt_" instead if you want to use it in a .js file that PHP doesn't process.

[Alex Clarke]

Once again, thanks for the speedy reply.

Could you advise me how to proceed with option b as mentioned in your previous post, please?

I did have an idea of using Javascript to update the value of all file input fields (as I'll only have one on the page) to work around this. However, I'm not sure if it's possible yet.

[DrByte]

document.forms.cart_quantity.id[txt_5].value = 'test';

vs

document.forms.cart_quantity.id[TEXT_PREFIX5].value = 'test';

[Alex Clarke]

It turns out that I can't use Javascript to update the value of this field, due to security issues - which makes sense.

I've tried to edit the following code in attributes.php within the modules directory.

From:

$tmp_html = '<input type="file" name="id[' . TEXT_PREFIX . $products_options_names->fields['products_options_id'] . ']"  id="' . 'attrib-' . $products_options_names->fields['products_options_id'] . '-' . $products_options_value_id . '" /><br />' . $_SESSION['cart']->contents[$prod_id]['attributes_values'][$products_options_names->fields['products_options_id']] . "\n" .
                      zen_draw_hidden_field(UPLOAD_PREFIX . $number_of_uploads, $products_options_names->fields['products_options_id']) . "\n" .
                      zen_draw_hidden_field(TEXT_PREFIX . UPLOAD_PREFIX . $number_of_uploads, $_SESSION['cart']->contents[$prod_id]['attributes_values'][$products_options_names->fields['products_options_id']]);

To:

$tmp_html = '<input type="file" name="id[' . TEXT_PREFIX . $products_options_names->fields['products_options_id'] . ']"  id="' . 'attrib-' . $products_options_names->fields['products_options_id'] . '-' . $products_options_value_id . '" value="c:\testing.txt" /><br />' . $_SESSION['cart']->contents[$prod_id]['attributes_values'][$products_options_names->fields['products_options_id']] . "\n" .
                      zen_draw_hidden_field(UPLOAD_PREFIX . $number_of_uploads, $products_options_names->fields['products_options_id']) . "\n" .
                      zen_draw_hidden_field(TEXT_PREFIX . UPLOAD_PREFIX . $number_of_uploads, $_SESSION['cart']->contents[$prod_id]['attributes_values'][$products_options_names->fields['products_options_id']]);

However, it doesn't appear to be working.

Can you advise if these code changes are correct please?