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When using the batch API, can I setup multiple batch jobs or can I only setup one batch with multiple operations? I ask because of a data migration I am doing.
Also, will it run the batches and operations in the order they are received or are they run concurrently? I need to have some items imported before others. So I am concerned about this.
You can call batch_set() more than one time, and batch_process() will execute all the batch sets that have been set with every call to batch_set().
Normally a module will call batch_set() once, and pass as $batch['operations'] an array containing all the functions to call, but if two different modules are setting their own batch sets, they will be both executed.
