1 package C4::Labels::Template;
10 use C4::Labels::Profile 1.000000;
11 use C4::Labels::PDF 1.000000;
12 use C4::Labels::Lib 1.000000 qw(get_unit_values);
15 use version; our $VERSION = qv('1.0.0_1');
19 my $given_params = {};
21 my @valid_template_params = (
41 foreach my $key (keys %{$given_params}) {
42 if (!(grep m/$key/, @valid_template_params)) {
43 warn sprintf('Unrecognized parameter type of "%s".', $key);
49 if (!(grep m/$_/, @valid_template_params)) {
50 warn sprintf('Unrecognized parameter type of "%s".', $_);
59 my @unit_value = grep {$_->{'type'} eq $self->{'units'}} @{get_unit_values()};
60 $self->{'page_width'} = $self->{'page_width'} * $unit_value[0]->{'value'};
61 $self->{'page_height'} = $self->{'page_height'} * $unit_value[0]->{'value'};
62 $self->{'label_width'} = $self->{'label_width'} * $unit_value[0]->{'value'};
63 $self->{'label_height'} = $self->{'label_height'} * $unit_value[0]->{'value'};
64 $self->{'top_text_margin'} = $self->{'top_text_margin'} * $unit_value[0]->{'value'};
65 $self->{'left_text_margin'} = $self->{'left_text_margin'} * $unit_value[0]->{'value'};
66 $self->{'top_margin'} = $self->{'top_margin'} * $unit_value[0]->{'value'};
67 $self->{'left_margin'} = $self->{'left_margin'} * $unit_value[0]->{'value'};
68 $self->{'col_gap'} = $self->{'col_gap'} * $unit_value[0]->{'value'};
69 $self->{'row_gap'} = $self->{'row_gap'} * $unit_value[0]->{'value'};
75 my $profile = C4::Labels::Profile->retrieve(profile_id => $self->{'profile_id'}, convert => 1);
76 $self->{'top_margin'} = $self->{'top_margin'} + $profile->get_attr('offset_vert'); # controls vertical offset
77 $self->{'left_margin'} = $self->{'left_margin'} + $profile->get_attr('offset_horz'); # controls horizontal offset
78 $self->{'label_height'} = $self->{'label_height'} + $profile->get_attr('creep_vert'); # controls vertical creep
79 $self->{'label_width'} = $self->{'label_width'} + $profile->get_attr('creep_horz'); # controls horizontal creep
85 if (_check_params(@_) eq 1) {
88 my $type = ref($invocant) || $invocant;
91 template_code => 'DEFAULT TEMPLATE',
92 template_desc => 'Default description',
98 left_text_margin => 0,
106 template_stat => 0, # false if any data has changed and the db has not been updated
109 bless ($self, $type);
114 my $invocant = shift;
116 my $type = ref($invocant) || $invocant;
117 my $query = "SELECT * FROM labels_templates WHERE template_id = ?";
118 my $sth = C4::Context->dbh->prepare($query);
119 $sth->execute($opts{template_id});
121 warn sprintf('Database returned the following error: %s', $sth->errstr);
124 my $self = $sth->fetchrow_hashref;
125 $self = _conv_points($self) if (($opts{convert} && $opts{convert} == 1) || $opts{profile_id});
126 $self = _apply_profile($self) if $opts{profile_id} && $self->{'profile_id'}; # don't bother if there is no profile_id
127 $self->{'template_stat'} = 1;
128 bless ($self, $type);
136 my $query_param = '';
138 $self = shift; # check to see if this is a method call
139 $call_type = 'C4::Labels::Template->delete';
140 $query_param = $self->{'template_id'};
144 $call_type = 'C4::Labels::Template::delete';
145 $query_param = $opts{'template_id'};
147 if ($query_param eq '') { # If there is no template id then we cannot delete it
148 warn sprintf('%s : Cannot delete layout as the template id is invalid or non-existant.', $call_type);
151 my $query = "DELETE FROM labels_templates WHERE template_id = ?";
152 my $sth = C4::Context->dbh->prepare($query);
153 $sth->execute($query_param);
154 $self->{'template_stat'} = 0;
159 if ($self->{'template_id'}) { # if we have an template_id, the record exists and needs UPDATE
161 my $query = "UPDATE labels_templates SET ";
162 foreach my $key (keys %{$self}) {
163 next if ($key eq 'template_id') || ($key eq 'template_stat');
164 push (@params, $self->{$key});
165 $query .= "$key=?, ";
167 $query = substr($query, 0, (length($query)-2));
168 push (@params, $self->{'template_id'});
169 $query .= " WHERE template_id=?;";
170 my $sth = C4::Context->dbh->prepare($query);
171 $sth->execute(@params);
173 warn sprintf('Database returned the following error: %s', $sth->errstr);
176 $self->{'template_stat'} = 1;
177 return $self->{'template_id'};
179 else { # otherwise create a new record
181 my $query = "INSERT INTO labels_templates (";
182 foreach my $key (keys %{$self}) {
183 next if $key eq 'template_stat';
184 push (@params, $self->{$key});
187 $query = substr($query, 0, (length($query)-2));
188 $query .= ") VALUES (";
189 for (my $i=1; $i<=((scalar keys %$self) - 1); $i++) { # key count less keys not db related...
192 $query = substr($query, 0, (length($query)-1));
194 my $sth = C4::Context->dbh->prepare($query);
195 $sth->execute(@params);
197 warn sprintf('Database returned the following error: %s', $sth->errstr);
200 my $sth1 = C4::Context->dbh->prepare("SELECT MAX(template_id) FROM labels_templates;");
202 my $template_id = $sth1->fetchrow_array;
203 $self->{'template_id'} = $template_id;
204 $self->{'template_stat'} = 1;
211 if (_check_params(@_) eq 1) {
215 if (exists($self->{$attr})) {
216 return $self->{$attr};
225 if (_check_params(@_) eq 1) {
229 foreach my $attrib (keys(%attrs)) {
230 $self->{$attrib} = $attrs{$attrib};
234 sub get_label_position {
235 my ($self, $start_label) = @_;
236 my ($row_count, $col_count, $llx, $lly) = 0,0,0,0;
237 if ($start_label eq 1) {
240 $llx = $self->{'left_margin'};
241 $lly = ($self->{'page_height'} - $self->{'top_margin'} - $self->{'label_height'});
242 return ($row_count, $col_count, $llx, $lly);
245 $row_count = ceil($start_label / $self->{'cols'});
246 $col_count = ($start_label - (($row_count - 1) * $self->{'cols'}));
247 $llx = $self->{'left_margin'} + ($self->{'label_width'} * ($col_count - 1)) + ($self->{'col_gap'} * ($col_count - 1));
248 $lly = $self->{'page_height'} - $self->{'top_margin'} - ($self->{'label_height'} * $row_count) - ($self->{'row_gap'} * ($row_count - 1));
249 return ($row_count, $col_count, $llx, $lly);
258 C4::Labels::Template - A class for creating and manipulating template objects in Koha
262 This module provides methods for creating, retrieving, and otherwise manipulating label template objects used by Koha to create and export labels.
268 Invoking the I<new> method constructs a new template object containing the default values for a template.
269 The following parameters are optionally accepted as key => value pairs:
271 C<profile_id> A valid profile id to be assciated with this template. NOTE: The profile must exist in the database and B<not> be assigned to another template.
272 C<template_code> A template code. ie. 'Avery 5160 | 1 x 2-5/8'
273 C<template_desc> A readable description of the template. ie. '3 columns, 10 rows of labels'
274 C<page_width> The width of the page measured in the units supplied by the units parameter in this template.
275 C<page_height> The height of the page measured in the same units.
276 C<label_width> The width of a single label on the page this template applies to.
277 C<label_height> The height of a single label on the page.
278 C<top_text_margin> The measure of the top margin on a single label on the page.
279 C<left_text_margin> The measure of the left margin on a single label on the page.
280 C<top_margin> The measure of the top margin of the page.
281 C<left_margin> The measure of the left margin of the page.
282 C<cols> The number of columns of labels on the page.
283 C<rows> The number of rows of labels on the page.
284 C<col_gap> The measure of the gap between the columns of labels on the page.
285 C<row_gap> The measure of the gap between the rows of labels on the page.
286 C<units> The units of measure used for this template. These B<must> match the measures you supply above or
287 bad things will happen to your document. NOTE: The only supported units at present are:
292 POINT = Postscript Points (This is the base unit in the Koha label creator.)
295 AGATE = Adobe Agates (5.1428571 points per)
298 INCH = US Inches (72 points per)
301 MM = SI Millimeters (2.83464567 points per)
304 CM = SI Centimeters (28.3464567 points per)
309 my $template = Template->new(); # Creates and returns a new template object with the defaults
311 my $template = C4::Labels::Template->new(profile_id => 1, page_width => 8.5, page_height => 11.0, units => 'INCH'); # Creates and returns a new template object using
312 the supplied values to override the defaults
314 B<NOTE:> This template is I<not> written to the database untill save() is invoked. You have been warned!
316 =head2 retrieve(template_id => $template_id)
318 Invoking the I<retrieve> method constructs a new template object containing the current values for template_id. The method returns
319 a new object upon success and -1 upon failure. Errors are logged to the Apache log. Two further options may be accessed. See the example
320 below for further description.
324 C<my $template = C4::Labels::Template->retrieve(template_id => 1); # Retrieves template record 1 and returns an object containing the record>
326 C<my $template = C4::Labels::Template->retrieve(template_id => 1, convert => 1); # Retrieves template record 1, converts the units to points,
327 and returns an object containing the record>
329 C<my $template = C4::Labels::Template->retrieve(template_id => 1, profile_id => 1); # Retrieves template record 1, converts the units
330 to points, applies the currently associated profile id, and returns an object containing the record.>
334 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.
335 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.
338 C<my $exitstat = $template->delete(); # to delete the record behind the $template object>
339 C<my $exitstat = C4::Labels::Template::delete(template_id => 1); # to delete template record 1>
343 Invoking the I<save> method attempts to insert the template into the database if the template is new and update the existing template record if
344 the template exists. The method returns the new record template_id upon success and -1 upon failure (This avoids template_ids conflicting with a
345 record template_id of 1). Errors are logged to the Apache log.
348 C<my $template_id = $template->save(); # to save the record behind the $template object>
350 =head2 get_attr($attribute)
352 Invoking the I<get_attr> method will return the value of the requested attribute or -1 on errors.
355 C<my $value = $template->get_attr($attribute);>
357 =head2 set_attr(attribute => value, attribute_2 => value)
359 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
363 C<$template->set_attr(attribute => value);>
365 =head2 get_label_position($start_label)
367 Invoking the I<get_label_position> method will return the row, column coordinates on the starting page and the lower left x,y coordinates on the starting
368 label for the template object.
371 C<my ($row_count, $col_count, $llx, $lly) = $template->get_label_position($start_label);>
375 Chris Nighswonger <cnighswonger AT foundations DOT edu>
379 Copyright 2009 Foundations Bible College.
383 This file is part of Koha.
385 Koha is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software
386 Foundation; either version 2 of the License, or (at your option) any later version.
388 You should have received a copy of the GNU General Public License along with Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
389 Suite 330, Boston, MA 02111-1307 USA
391 =head1 DISCLAIMER OF WARRANTY
393 Koha is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
394 A PARTICULAR PURPOSE. See the GNU General Public License for more details.