By Guide-1 on

Which hook i should use to hide nodes specific parameter?

⋅ Categories: Drupal 6.x

Comments

nevets’s picture

nevets commented

People are going to need more context to provide help.

"In which hook i can filter nodes to display" makes it sound like an access/permission issue.

And what is a "nodes specific parameter"?

The bottom line, exactly what do you want to filter and when/where?

Guide-1’s picture

Guide-1 commented

I've added new parameter to node table "private" and created new table with list of "friends"... i need to show only nodes with parameter "private" = 0 for users which are is not in "friend" table

nevets’s picture

nevets commented

You might want to check out the User Relationships and Friendlist modules.

Side note: It is a bad practice to modify core tables (it can make upgrading more difficult).

Guide-1’s picture

Guide-1 commented

Thanks... i'm trying to make some modules :)
So i've found how to use access hooks:

<?php
/**
 * Implementation of hook_node_grants().
 */
function offer_node_grants($account, $op) {
  // module only controls view operations
  if ($op == 'view') {
    $partners = _partners_get_partners($account->uid);
    $grants['user_partner'][] = $account->uid;
    if (!empty($partners)) {
      $grants['user_partner'] = array_keys($partners);
    }
    return $grants;
  }
}

/**
 * Implementation of hook_node_access_records().
 */
function offer_node_access_records($node) {
  if ($node->partners) { // from hook_form_alter
    return array(
      array(
        'realm' => 'user_partner',
        'gid' => $node->uid,
        'grant_view' => 1,
        'grant_update' => 0,
        'grant_delete' => 0,
        'priority' => 5,
      ),
    );
  }
}

function _partners_get_partners($uid, $reset = NULL) {
  static $partners;

  if (!isset($partners[$uid]) || $reset) {
    $result = db_query("SELECT * FROM {partners} WHERE uid = %d OR pid = %d", $uid, $uid);
    while ($partner = db_fetch_object($result)) {
      // if the current user is in the uid column
      if ($partner->uid == $uid) {
        // load the friend_uid
        $partners[$uid][$partner->pid] = user_load(array('uid' => $partner->pid));
      }
      else { // the current user is the friend_uid
        // load the uid column as the friend
        $partners[$uid][$partner->uid] = user_load(array('uid' => $partner->uid));
      }
    }
  }

  return $partners[$uid];
}
?>

Thanks for help and sorry for my english :)