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Redbean, Many-to-many-many using the same object

Many-to-many combinations are easy to use in redbean with simple scripts. But how do you do multiple comparisons between the same object?

Example:

What I want to learn in the structure is very similar to setting the twitter / instagram of "followers" and "followers"

// this c

$user = R::dispense('user');
$user2 = R::dispense('user');

// ..

//Usr1 follows user2
$user->sharedUser[] = $user2;

// user2 follows user1
$user2->sharedUser[] = $user1;

Now I want, from the point of view of user1, to list both subscribers and the following users.

However, I cannot list the “subscribers” without asking all the users in the database and looking for user1. Is there a way to have multiple “common” lists in redbean, or is there any good workaround for these specific cases, or is it a way to find the path?

+5
1

, , , :)

<?php
include_once 'rb.php';
R::setup();


//create users
$users = array();
foreach (array('arul', 'jeff', 'mugunth', 'vish') as $name) {
    $user = R::dispense('user');
    $user->name = $name;
    $user->follows = R::dispense('follows');
    //create variables with specified names ($arul, $jeff, etc)
    $$name = $user;
    $users[] = $user;
}

//set relationships
$arul->follows->sharedUser = array($jeff);
$mugunth->follows->sharedUser = array($jeff, $arul);
$vish->follows->sharedUser = array($arul, $mugunth);

R::storeAll($users);

//print relationships
$id = 1;
while (true) {
    echo "-----------------------------------\n";
    $u = R::load('user', $id++);
    if (!$u->id) break;
    echo "$u->name follows " . count($u->follows->sharedUser) . " user(s) \n";
    if ($u->follows) {
        foreach ($u->follows->sharedUser as $f) {
            echo "    - $f->name \n";
        }
    }
    echo "\n$u->name is followed by "
        . R::getCell("SELECT COUNT(*) FROM follows_user WHERE user_id = $u->id")
        . " user(s) \n";
    foreach ($u->sharedFollows as $f) {
        $follower = array_shift($f->ownUser);
        echo "    - $follower->name \n";
    }
}

/* echos the following
-----------------------------------
jeff follows 0 user(s)

jeff is followed by 2 user(s)
    - arul
    - mugunth
-----------------------------------
arul follows 1 user(s)
    - jeff

arul is followed by 2 user(s)
    - mugunth
    - vish
-----------------------------------
mugunth follows 2 user(s)
    - jeff
    - arul

mugunth is followed by 1 user(s)
    - vish
-----------------------------------
vish follows 2 user(s)
    - arul
    - mugunth

vish is followed by 0 user(s)
-----------------------------------
*/
+6

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