C4::Labels::Layout -A class for creating and manipulating layout objects in Koha
This module provides methods for creating, retrieving, and otherwise manipulating label layout objects used by Koha to create and export labels.
Invoking the I<new> method constructs a new layout object containing the default values for a layout. The following parameters are optionally accepted as key => value pairs: C<barcode_type> Defines the barcode type to be used on labels. NOTE: At present only the following barcode types are supported in the label creator code:
C<printing_type> Defines the general layout to be used on labels. NOTE: At present there are only five printing types supported in the label creator code:
C<layout_name> The descriptive name for this layout. C<guidebox> Setting this to '1' will result in a guide box being drawn around the labels marking the edge of each label C<font> Defines the type of font to be used on labels. NOTE: The following fonts are available by default on most systems:
C<font_size> Defines the size of the font in postscript points to be used on labels C<callnum_split> Setting this to '1' will enable call number splitting on labels C<text_justify> Defines the text justification to be used on labels. NOTE: The following justification styles are currently supported by label creator code:
C<format_string> Defines what fields will be printed and in what order they will be printed on labels. These include any of the data fields that may be mapped to your MARC frameworks. Specify MARC subfields as a 4-character tag-subfield string: ie. 254a Enclose a whitespace-separated list of fields to concatenate on one line in double quotes. ie. "099a 099b" or "itemcallnumber barcode" Static text strings may be entered in single-quotes: ie. 'Some static text here.' example: C<my $layout = Layout->new(); # Creates and returns a new layout object> C<my $layout = C4::Labels::Layout->new(barcode_type => 'CODE39', printing_type => 'BIBBAR', font => 'C', font_size => 6); # Creates and returns a new layout object using the supplied values to override the defaults> B<NOTE:> This layout is I<not> written to the database until save() is invoked. You have been warned!
Invoking the I<retrieve> method constructs a new layout object containing the current values for layout_id. The method returns a new object upon success and 1 upon failure. Errors are logged to the Apache log. example: C<my $layout = Layout->retrieve(layout_id => 1); # Retrieves layout record 1 and returns an object containing the record>
Invoking the delete method attempts to delete the layout from the database. The method returns 0 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 simply deleteing that template from the database. See the example below. examples: C<my $exitstat = $layout->delete(); # to delete the record behind the $layout object> C<my $exitstat = Layout->delete(layout_id => 1); # to delete layout record 1>
Invoking the I<save> method attempts to insert the layout into the database if the layout is new and update the existing layout record if the layout exists. The method returns the new record id upon success and -1 upon failure (This avoids conflicting with a record id of 1). Errors are logged to the Apache log. example: C<my $exitstat = $layout->save(); # to save the record behind the $layout object>
Invoking the I<get_attr> method will return the value of the requested attribute or -1 on errors. example: C<my $value = $layout->get_attr($attribute);>
Invoking the I<set_attr> method will set the value of the supplied attributes to the supplied values. The method accepts key/value pairs separated by commas. example: C<$layout->set_attr(attribute => value);>
Invoking the I<get_text_wrap_cols> method will return the number of columns that can be printed on the label before wrapping to the next line. examples: C<my $text_wrap_cols = $layout->get_text_wrap_cols();>
Chris Nighswonger <cnighswonger AT foundations DOT edu>
Copyright 2009 Foundations Bible College.
This file is part of Koha.
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