function batch_example_lowest_nid

Utility function - simply queries and loads the lowest nid.

Return value

int|NULL A nid or NULL if there are no nodes.

Related topics

Example: Batch API
Outlines how a module can use the Batch API.
2 calls to batch_example_lowest_nid()
batch_example_batch_1 in batch_example/batch_example.module
Batch 1 definition: Load the node with the lowest nid 1000 times.
batch_example_simple_form in batch_example/batch_example.module
Form builder function to allow choice of which batch to run.

File

batch_example/batch_example.module, line 291

Code

function batch_example_lowest_nid() {
    $select = db_select('node', 'n')->fields('n', array(
        'nid',
    ))
        ->orderBy('n.nid', 'ASC')
        ->extend('PagerDefault')
        ->limit(1);
    $nid = $select->execute()
        ->fetchField();
    return $nid;
}