What are hooks in django and in general in the context of web development?

Question

Django

Explain clearly what it is and why?

Answer 1

Hooks - anchors for code.
I don’t know how in Django, but in many CMS it is used to bind another code to a specific point in the code.
For example in Wordpress: in the footer file you have do_action(footer_hook)
Then you can add add_action(footer_hook, hook_function) in the functions.php file (where all functions are written)
And when the site and footer are loaded, the function that is "attached" will be executed ( hooked) to the action footer_hook

Answer 2

Xs, I remember there were hooks in Drupal. And in dzhang something did not meet such. It's still in the git. Do you mean signals?

Answer 3

Most likely it is a perverse translation of Event Listeners.

Answer 4

In Drupal it looks like this:

function hook_form_alter() {
    //code
}

т.е. вcтроеная функция самого Drupala.
Ну если пишешь свой модуль, то можешь переопределить эту функцию:

function MYMODULE_form_alter() {
    //code
}

Как то так...