C4::Labels::Batch - A class for creating and manipulating batch objects in Koha
This module provides methods for creating, and otherwise manipulating batch objects used by Koha to create and export labels.
Invoking the I<new> method constructs a new batch object with no items. It is possible to pre-populate the batch with items and a branch code by passing them
as in the second example below.
B<NOTE:> The items list must be an arrayref pointing to an array of hashes containing a key/data pair after this fashion: {item_number => item_number}. The order of
the array elements determines the order of the items in the batch.
example:
C<my $batch = C4::Labels::Batch->new(); # Creates and returns a new batch object>
C<my $batch = C4::Labels::Batch->new(items => $arrayref, branch_code => branch_code) # Creates and returns a new batch object containing the items passed in
with the branch code passed in.>
B<NOTE:> This batch is I<not> written to the database until C<$batch->save()> is invoked. You have been warned!
Invoking the I<add_item> method will add the supplied item to the batch object.
example:
$batch->add_item(item_number => $item_number, branch_code => $branch_code);
Invoking the I<get_attr> method will return the requested attribute.
example:
my @items = $batch->get_attr('items');
Invoking the I<remove_item> method will remove the supplied item number from the batch object.
example:
$batch->remove_item($item_number);
Invoking the I<retrieve> method constructs a new batch object containing the current values for batch_id. The method returns a new object upon success and 1 upon failure.
Errors are logged to the Apache log.
examples:
my $batch = C4::Labels::Batch->retrieve(batch_id => 1); # Retrieves batch 1 and returns an object containing the record
Invoking the delete method attempts to delete the template from the database. The method returns -1 upon failure. Errors are logged to the Apache log.
NOTE: This method may also be called as a function and passed a key/value pair simply deleteing that batch from the database. See the example below.
examples:
my $exitstat = $batch->delete(); # to delete the record behind the $batch object
my $exitstat = C4::Labels::Batch->delete(batch_id => 1); # to delete batch 1
Invoking the remove_duplicates method attempts to remove duplicate items in the batch from the database. The method returns the count of duplicate records removed upon
success and -1 upon failure. Errors are logged to the Apache log.
NOTE: This method may also be called as a function and passed a key/value pair removing duplicates in the batch passed in. See the example below.
examples:
my $remove_count = $batch->remove_duplicates(); # to remove duplicates the record behind the $batch object
my $remove_count = C4::Labels::Batch->remove_duplicates(batch_id => 1); # to remove duplicates in batch 1
Chris Nighswonger <cnighswonger AT foundations DOT edu>
Copyright 2009 Foundations Bible College.
This file is part of Koha.
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