Batch Usage Example

Suppose you need to do some operation with a large number of node and the script execution time is not enough.
In this case, you can increase the execution time of the script as follows:
set_time_limit ($ time); // $ time in seconds

This, to put it mildly, is not the right decision.
In this case, it is much more correct to implement this via batch .


Using batch is extremely simple. Now give an example.

Suppose we have an array of nid:

Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );

1. Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );
2. Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );
3. Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );
4. Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );
5. Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );
6. Copy Source | Copy HTML $nids = array ( 0 => nid, 1 => nid, … n => nid, );

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There is also a function that works with this array.
For example, we will simply load and save the node.

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1. function batch_example_nodes_resave ( $ nids = array ()) {
2. foreach ( $ nids as $ nid ) {
3. if (is_numeric ( $ nid )) {
4. $ node = node_load ( $ nid );
5. node_save ( $ node );
6. }
7. }
8. }

Now we describe the function with batch.
We will divide the $ nids array into parts (5 ellements each) and send to batch_example_nodes_resave ()

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1. function batch_example_nodes_resave_batch ( $ nids = array ()) {
2. $ operations = array ();
3. while ( $ nids ) {
4. $ nids_part = array_splice ( $ nids , 0 , 5 );
5. $ operations [] = array ( 'batch_example_nodes_resave' , array ( $ nids_part ));
6. }
7. $ batch = array (
8. 'title' => t ( 'Resave nodes' ),
9. 'operations' => $ operations ,
10. );
11. batch_set ( $ batch );
12. batch_process ();
13. }

Now it's enough to transfer our array to batch_example_nodes_resave_batch () and see how everything works beautifully :)

ps I apologize for the double post, Habr Ceto feels not important at all ...