Drupal custom node Permissions

Use hook_node_access_records and hook_node_grants (graphical combination (personal understanding is not authoritative, for reference only) to replace hook_node_access

1. First, we will introduce hook_node_access. It uses code writing to determine whether the user has the permission to access, edit, and delete a node, as shown below:

function modulename_node_access($node, $op, $account) {

// Here, the following results are returned based on your conditions.

    return NODE_ACCESS_IGNORE;

<pre name="code" class="php">    return NODE_ACCESS_DENY;

    return NODE_ACCESS_ALLOW;

}

2. Use the graphical combination of hook_node_access_records and hook_node_grants.

First, declare the hook_node_grants hook to be called in the following three cases of node, and add the corresponding records to the node_access Table, as follows:

The three functions are in node. module.

Node_save

Node_access_rebuild contains a batch (_ node_access_rebuild_batch_operation)

function modulename_node_access_records($node) {

    $grants[] = array(

      'realm' => 'node_access_custom_edit',

      'gid' => $gid,

      'grant_view' => 1,

      'grant_update' => 1,

      'grant_delete' => 1,

      'priority' => 0,

    );

</pre><p></p><p></p><pre name="code" class="php">      $grants[] = array(

        'realm' => 'node_access_custom_author',

        'gid' => $node->uid,

        'grant_view' => 1,

        'grant_update' => 1,

        'grant_delete' => 1,

        'priority' => 0,

      );

    return $grants;

}

Second, permission comparison:

Use this function in hook_node_access

Module_implements ('node _ grants') implements all node_grants as follows:

Function node_access_example_node_grants ($ account, $ OP ){

$ Grants = array ();

// First grant a grant to the author for own content.

// Do not grant to anonymous user else all anonymous users wocould be author.

If ($ account-> UID ){

$ Grants ['node _ access_example_author '] = array ($ account-> UID );

}

// Then, if "access any private content" is allowed to the account,

// Grant view, update, or Delete as necessary.

If ($ op = 'view' & user_access ('Access any private content', $ account )){

$ Grants ['node _ access_example_view '] = array (node_access_example_grant_all );

}

If ($ op = 'update' | $ op = 'delete') & user_access ('edit any private content', $ account )){

$ Grants ['node _ access_example_edit '] = array (node_access_example_grant_all );

}

Return $ grants;

}

Perform real GID as a group of multiple conditions for obtaining or. For details, see node_access function implementation,

For the rest, you just need to configure the graphic interface in the background.