Custom permissions with node access grants in drupal 8 and drupal 7 _ aten design group

For many Drupal web sites setting permissions for anonymous, authenticated, and admin users through the GUI is sufficient. Database high availability For example, all published content should be visible to all users, authenticated users can leave comments, and admin users are allowed to create content. Database utility For more advanced use cases the popular contributed module Content Access (beta for Drupal 7, dev for Drupal 8) allows much finer grained control over read and write access to nodes by content type, and can even specify access differently for individual nodes.

When even more complex permissions are needed many choose to implement hook_node_access(). Data recovery zagreb Permissions management with hook_node_access() does have a few disadvantages:

Managing permissions with hook_node_access() works fine in many cases, but it’s not the most flexible way to manage access to your nodes. Database javascript Custom permissions with node access grants in Drupal 8

A more robust solution to complex permissions is to use the node access system with hook_node_access_records() and hook_node_grants(). Database administrator jobs Hook_node_access_records() is called when each node is saved. Data recovery for iphone That’s where grants are setup to view, update, and/or delete a node. Data recovery victoria bc Hook_node_grants() is called to determine access and is what is used to check the node_access table.

When researching how to implement node grants, I had come across relatively simple examples where access was based on a user’s role or organic groups properties. 10k database Since the user object is passed to hook_node_grants(), it’s trivial to determine which user should get access. Data recovery software mac But, what if access to view or edit a node is based on a combination of factors? This was the situation I recently had to deal with.

The implementation below creates a View grant for accounts that meet a specific criteria. Cost of data recovery from hard drive The code for the actual criteria has been omitted. S cerevisiae database It also creates a full access grant for administrators using a zero as the grant id — not to be confused with the UID associated with anonymous users.

function MODULENAME_node_access_records (NodeInterface $node ) { // code to get accounts that should have read access is not shown foreach ( $accounts as $account ) { $grants [ ] = array ( ‘realm’ => ‘custom_access’,

• Grant id: An integer value often used to group access. Snl database If for example some users can only read the node, and others can read, update, and delete, you might use 0 and 1 for these two sets of users. Database 4500 In our case there are a small number of users who should have read access and this is determined by code based on multiple factors. Data recovery miami fl For this reason we set a grant for each user using the user id.

Below is the hook_node_grants() implementation. Data recovery sd card This is called each time access to a node needs to be determined; so the simpler the code, the better. Uottawa database If the node_access table has an entry for the node id being accessed, permissions with the matching value for realm and grant id will be granted. Top 10 data recovery software free download First the account is checked for the administrator role, and the grant id 0 is returned if there’s a match. Database query optimization If not, and if the user isn’t anonymous, the function returns a grant with the user’s id. Qmobile data recovery If there’s a match in the table, access will be granted based on the values for read, update, or delete. No 1 data recovery software If this grant doesn’t match an entry in the table, access will be denied. Data recovery iphone free Finally, if the user is anonymous an empty array will be returned, denying access.