capabilities - Prevent all users from editing posts except admins using hooks

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So I'm attempting to block out all post edits for all users except admins, so I have the following setup:

add_filter('post_row_actions', [self::class, 'remove_edit_permissions'], 10, 2);

public static function remove_edit_permissions(array $actions = []): array
{
    $user = User::init();
    if (is_null($user)) {
        return [];
    }
    if (!$user->role()->has_capability('manage_options')) {
        if (isset($actions['inline hide-if-no-js'])) {
            unset($actions['inline hide-if-no-js']);
        }
        if (isset($actions['edit'])) {
            unset($actions['edit']);
        }
    }

    return $actions;
}

This works great, it blocks out the "Quick Edit" and "Edit" buttons in the Admin Post UI such as below:

Problem:

Users are still able to access the edit url and make changes such as this: .php?post=10690&action=edit

Is there a way to restrict link editing also?

Is there a much better solutions on editing prevention using some sort of hook or filter?

All help will be appreciated!

So I'm attempting to block out all post edits for all users except admins, so I have the following setup:

add_filter('post_row_actions', [self::class, 'remove_edit_permissions'], 10, 2);

public static function remove_edit_permissions(array $actions = []): array
{
    $user = User::init();
    if (is_null($user)) {
        return [];
    }
    if (!$user->role()->has_capability('manage_options')) {
        if (isset($actions['inline hide-if-no-js'])) {
            unset($actions['inline hide-if-no-js']);
        }
        if (isset($actions['edit'])) {
            unset($actions['edit']);
        }
    }

    return $actions;
}

This works great, it blocks out the "Quick Edit" and "Edit" buttons in the Admin Post UI such as below:

Problem:

Users are still able to access the edit url and make changes such as this: https://example.com/wp-admin/post.php?post=10690&action=edit

Is there a way to restrict link editing also?

Is there a much better solutions on editing prevention using some sort of hook or filter?

All help will be appreciated!

• capabilities
• permissions
• post-editor

Share Improve this question asked Jul 25, 2022 at 0:33 theMaptheMap 2511 silver badge44 bronze badges

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1 Answer 1

Sorted by: Reset to default 1

You can take away users' capabilities with a plugin like User Role Editor, or programmatically. What you'll need to do is collect a list of all your post types that appear in the Editor (Core has Post and Page; plugins and themes may add more) and then remove properties with a plugin.

For example, you can prevent Editors from being able to edit Posts with the following code:

<?php
/**
 * Plugin Name: Lock down Posts
 */

add_action( 'admin_init', 'wpse_407959_restrict_caps' );

function wpse_407959_restrict_caps() {
    $role = get_role('editor');
    $role->remove_cap( 'create_posts' );
    $role->remove_cap( 'edit_posts' );
    $role->remove_cap( 'edit_published_posts' );
    $role->remove_cap( 'delete_posts' );
    $role->remove_cap( 'delete_published_posts' );
    $role->remove_cap( 'publish_posts' );
}

Check your own site to determine all the Roles you need to update, and also check each post type's capabilities list. Some custom post types use default capabilities (i.e. removing edit_posts may prevent them from editing your CPT as well) but others map their own custom capabilities you'll also need to remove.

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