hook_form_alter

I am using Drupal's blog module to provide a lightweight electronic portfolio tool to students and teachers. I could use your feedback on the approach I've taken using content_access and hook_form_alter. Is this the best/safest way to do this? I still feel like a relative newbie to making these modifications.

For a fuller example of the reason for using blog as a portfolio, please see http://www.kassblog.com/item/1030

I added a checkbox field to the blog content type.

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I'm replacing a single page from a contributed module. The page is currently rendered with a call to drupal_get_form() from a path like foo/%node/bar

My first thought was to replace the page with hook_form_alter, unset the form elements, and replace with my own content. But I thought that would require a whole lot of preprocessing on the form that I would just discard.

So, my next thought was to just redirect the path to my own function with hook_menu_alter. But, is this less efficient because of the dynamic nature of the path?

I'm just curious if anyone has experience with this.

hook_form_alter là một công cụ cực kỳ mạnh mà Drupal cung cấp. Chúng ta có thể sử dụng nó để thực hiện được nhiều việc, tưởng chừng như không thể: Thay đổi cấu trúc một form mà không cần sửa mã nguồn, định dạng form, thêm kịch bản xử lý cá nhân vào form hệ thống, ...