Initial commit.

lib/perl5/Selima/Country.pm

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+# Selima Website Content Management System
+# Country.pm: The subroutines to query the country name from the database.
+
+#  Copyright (c) 2004-2018 imacat.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# Author: imacat <imacat@mail.imacat.idv.tw>
+# First written: 2004-10-17
+
+package Selima::Country;
+use 5.008;
+use strict;
+use warnings;
+use base qw(Exporter);
+use vars qw(@EXPORT @EXPORT_OK);
+BEGIN {
+@EXPORT = qw(ctname ctname_zhtw);
+@EXPORT_OK = @EXPORT;
+# Prototype declaration
+sub ctname($);
+sub ctname_zhtw($);
+}
+
+use Selima::Cache qw(:country);
+use Selima::CommText;
+use Selima::DataVars qw($DBH :lninfo);
+use Selima::GetLang;
+use Selima::LnInfo;
+
+# The default language here is always English
+use constant DEFAULT_LANG => "en";
+use constant TRAD_CHINESE => "zh-tw";
+
+# ctname: Obtain a country name
+sub ctname($) {
+    local ($_, %_);
+    my ($id, $name, $col, $defcol, $sql, $sth);
+    $id = $_[0];
+    # Bounce if there is any problem with $id
+    return t_notset unless defined $id;
+    # Return the cache
+    return $Country_ctname{$id} if exists $Country_ctname{$id};
+    
+    # Default language
+    if (getlang eq DEFAULT_LANG) {
+        $name = "name_" . getlang(LN_DATABASE) . " AS name";
+    # Fall back to the default language
+    } else {
+        $col = "name_" . getlang LN_DATABASE;
+        $defcol = "name_" . ln DEFAULT_LANG, LN_DATABASE;
+        $name= "COALESCE($col, $defcol) AS name";
+    }
+    # Query
+    $sql = "SELECT $name FROM country"
+        . " WHERE id=" . $DBH->quote($id) . ";\n";
+    $sth = $DBH->prepare($sql);
+    $sth->execute;
+    
+    # Found
+    return ($Country_ctname{$id} = ${$sth->fetch}[0])
+        if $sth->rows == 1;
+    # Not found
+    return ($Country_ctname{$id} = t_na);
+}
+
+# ctname_zhtw: Obtain a country name in Traditional Chinese
+sub ctname_zhtw($) {
+    local ($_, %_);
+    my ($id, $name, $col, $defcol, $sql, $sth);
+    $id = $_[0];
+    # Bounce if there is any problem with $id
+    return t_notset unless defined $id;
+    
+    # Fall back to the default language
+    $col = "name_" . ln TRAD_CHINESE, LN_DATABASE;
+    $defcol = "name_" . ln DEFAULT_LANG, LN_DATABASE;
+    $name= "COALESCE($col, $defcol) AS name";
+    # Query
+    $sql = "SELECT $name FROM country"
+        . " WHERE id=" . $DBH->quote($id) . ";\n";
+    $sth = $DBH->prepare($sql);
+    $sth->execute;
+    
+    # Found
+    return ${$sth->fetch}[0] if $sth->rows == 1;
+    # Not found
+    return t_na;
+}
+
+return 1;