WRITE A FUNCTION FOR WORDPRESS

THE SCENARIO: 1. I use Pay For Post WordPress plugin on my site. Anyone who signs up on my site can login and then subscribe to a Pay For Post package. Once he has subscribed, he can post the number of posts that his subscribed package allows. 2. This plugin does not rely on WordPress Roles, therefore, it does not take the subscriber to the backend admin panel to write post. It has its own frontend Editor that works regardless of whether the subscriber’s WordPress role has Post writing Capabilities or not. 3. I want the Pay For Post subscriber to be able to use the regular WordPress Post Editor. For this purpose, I have created a custom role that inherits from the WordPress Author’s role and has the capabilities to write and edit posts and to upload media files. 4. I have selected this custom role as the default role at sign up so that anyone signing up at my site has the capabilities to publish Posts and Upload Media. 5. When someone logs in at my site, the Admin Bar will be visible on the top of the page. 6. The logged in user can click the Dashboard link in the Admin Bar and get access to the Admin Panel 7. Once he is on the Admin Panel, he can click the “Add Post” button and create and publish posts. As a WordPress developer you must know that this “Add Post” button appears both in the left menu on the Admin Panel and also on the “Edit Post” page. The user can click it from any link depending on where he is. 8. HOWEVER, I HAVE TO MAKE SURE THAT NOBODY PUBLISHES POSTS WITHOUT SUBSCRIBING TO A PAY FOR POST PACKAGE AND PAYING FOR IT. THE REQUIRED FUNCTION WILL DO THE FOLLOWING: 1. When a logged in user clicks the “Add Post” link, this function will check the user’s WordPress Role. 2. If the user has a role OTHER THAN the default WordPress role then the function will do nothing and let the WordPress built in Role Policy handle the process. 3. It the user HAS the default WordPress role, then this function will first check (1) if that user has subscribed to a Pay For Post package; (2) if he has subscribed to a Pay For Package then the function will check if that user has any subscribed posts left that he can publish. 4. If the user has posts available that he can publish then the function will allow him to create and publish the post. 5. If the user has not subscribed to a Pay For Post subscription package or he has subscribed but his available posts have finished then the function will redirect the user to Pay For Post User Dashboard so that the user cannot use the “Add Post” feature without a valid subscription. NOTE: It’s desirable that the function PROGRAMATICALLY gets the WordPress Default Role, however, if you find that difficult then I can accept hardcoding the name of that role in the function.