允许用户仅在获得批准后才能访问网站的一部分

Question

I'm working with laravel 5.4 and I have part of my website that give download links but I need to give this download links only to users who paid for that links.

Example: I have courses which users can buy to learn. Each course has different link of downloads. here i want to show download link of exact course that user has bought to him/her and not all the courses for like 30 days.

How can I do that?

PS: I only need guide about database structures to how to relate specific user to specific course for limited time only.

Thanks.

Answer 1

I'm not really that experienced with Laravel, but it's very easy to do in PHP. One thing you can do is store information in a session like this:

$_SESSION['premium'] = true;

So then you can check to see if the session is true like this:

if ($_SESSION['premium'] = true) {
    # Paid content
} else {
    echo "Sorry! This is for premium members only!";
}

You also have the options of querying the database to see if the user have a column called 'paid' set to 1(true) or 0(false). Which I'm assuming you understand how to do.

In response to your recent comment:

Create a table called purchases with these columns:

• id
• user_id
• course_id

Then on the page, query that table:

$query = mysqli_query($connection_variable, "SELECT * FROM purchases WHERE user_id='$_SESSION['username'] AND course_id='$course_id'");
if (mysqli_num_rows($query) > 0) {
    #Show course
} else {
    echo "ERROR MESSAGE HERE";
}

Try that and tell me how it goes!

Answer 2

Assuming your users login first.

Create a model for Purchases with a user_id , course_id and timestamps and set up a one to many relationship.

In your logic when someone purchases a course you add a record into your Purchases table above. Supposing you have a listing of these Purchases, you would grab these purchases by

User::find(1)->purchases

and this would return the purchases they are allowed to download. You would need additional validation using scopes maybe to effect your 30 day availability rule eg download is only available if the date today is within 30 days from the created_at column.