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| Current File : //proc/self/root/proc/2/root/usr/local/rvglobalsoft/rvsitebuilder7/lib/RVL/TranslationDB.pm |
#!/usr/bin/perl
package RVL::TranslationDB;
# WebSite: http://www.rvglobalsoft.com
# Unauthorized copying is strictly forbidden and may result in severe legal action.
# Copyright (c) 2013 RV Global Soft Co.,Ltd. All rights reserved.
#
# =====YOU MUST KEEP THIS COPYRIGHTS NOTICE INTACT AND CAN NOT BE REMOVE =======
# Copyright (c) 2013 RV Global Soft Co.,Ltd. All rights reserved.
# This Agreement is a legal contract, which specifies the terms of the license
# and warranty limitation between you and RV Global Soft Co.,Ltd. and RV2Factor Product for RV Global Soft.
# You should carefully read the following terms and conditions before
# installing or using this software. Unless you have a different license
# agreement obtained from RV Global Soft Co.,Ltd., installation or use of this software
# indicates your acceptance of the license and warranty limitation terms
# contained in this Agreement. If you do not agree to the terms of this
# Agreement, promptly delete and destroy all copies of the Software.
#
# ===== Grant of License =======
# The Software may only be installed and used on a single host machine.
#
# ===== Disclaimer of Warranty =======
# THIS SOFTWARE AND ACCOMPANYING DOCUMENTATION ARE PROVIDED "AS IS" AND
# WITHOUT WARRANTIES AS TO PERFORMANCE OF MERCHANTABILITY OR ANY OTHER
# WARRANTIES WHETHER EXPRESSED OR IMPLIED. BECAUSE OF THE VARIOUS HARDWARE
# AND SOFTWARE ENVIRONMENTS INTO WHICH RV SITE BUILDER MAY BE USED, NO WARRANTY OF
# FITNESS FOR A PARTICULAR PURPOSE IS OFFERED. THE USER MUST ASSUME THE
# ENTIRE RISK OF USING THIS PROGRAM. ANY LIABILITY OF RV GLOBAL SOFT CO.,LTD. WILL BE
# LIMITED EXCLUSIVELY TO PRODUCT REPLACEMENT OR REFUND OF PURCHASE PRICE.
# IN NO CASE SHALL RV GLOBAL SOFT CO.,LTD. BE LIABLE FOR ANY INCIDENTAL, SPECIAL OR
# CONSEQUENTIAL DAMAGES OR LOSS, INCLUDING, WITHOUT LIMITATION, LOST PROFITS
# OR THE INABILITY TO USE EQUIPMENT OR ACCESS DATA, WHETHER SUCH DAMAGES ARE
# BASED UPON A BREACH OF EXPRESS OR IMPLIED WARRANTIES, BREACH OF CONTRACT,
# NEGLIGENCE, STRICT TORT, OR ANY OTHER LEGAL THEORY. THIS IS TRUE EVEN IF
# RV GLOBAL SOFT CO.,LTD. IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO CASE WILL
# RV GLOBAL SOFT CO.,LTD.'S LIABILITY EXCEED THE AMOUNT OF THE LICENSE FEE ACTUALLY PAID
# BY LICENSEE TO RV GLOBAL SOFT CO.,LTD.
# ===============================
use strict;
use warnings;
use utf8;
use Data::Dumper;
use DBI;
use Encode qw/encode decode/;
use base qw(Locale::MakePhrase::BackingStore);
use Locale::MakePhrase::Utils qw(die_from_caller);
our $default_host = 'localhost';
our $default_connect_options = {};
our $implicit_table_structure = 'tran_key,tran_language,tran_expression,tran_priority,tran_translation,tran_owner';
our $DEBUG = 0;
use Class::Std::Utils;
{
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my $self = bless {}, $class;
# get options
my %options;
if (@_ > 1 and not(@_ % 2)) {
%options = @_;
} elsif (@_ == 1 and ref($_[0]) eq 'HASH') {
%options = %{$_[0]};
} elsif (@_ > 0) {
die_from_caller("Invalid arguments passed to new()");
}
$self->{options} = \%options;
# allow sub-class to control construction
$self = $self->init();
return undef unless $self;
# connect to database
my $dbh;
if (exists $options{dbh} or exists $self->{dbh}) {
# if user passed in a database handle, use it
# check if we are meant to be the owner of id
$dbh = (exists $options{dbh}) ? $options{dbh} : $self->{dbh};
$self->{owned} = (exists $options{owned}) ? ($options{owned} ? 1 : 0) : (exists $self->{owned}) ? ($self->{owned} ? 1 : 0) : 0;
} else {
# otherwise, make a specific database handle.. and since we
# constructed the database handle -> we definately need to destroy it
$self->{driver} = (exists $options{driver}) ? $options{driver} : $self->{driver};
$self->{database} = (exists $options{database}) ? $options{database} : $self->{database};
$self->{host} = (exists $options{host}) ? $options{host} : (exists $self->{host}) ? $self->{host} : undef;
$self->{port} = (exists $options{port}) ? $options{port} : (exists $self->{port}) ? $self->{port} : undef;
$self->{user} = (exists $options{user}) ? $options{user} : (exists $self->{user}) ? $self->{user} : undef;
$self->{password} = (exists $options{password}) ? $options{password} : (exists $self->{password}) ? $self->{password} : undef;
$self->{connect_options} = (exists $options{connect_options}) ? $options{connect_options} : (exists $self->{connect_options}) ? $self->{connect_options} : $default_connect_options;
die_from_caller("No 'database driver' specification") unless $self->{driver};
die_from_caller("No 'database name' specification") unless $self->{database};
$dbh = $self->_connect();
$self->{owned} = 1;
}
# test database connection and the table structure
die_from_caller("Database handle is not real?") unless (ref($dbh) and $dbh->can('ping') and $dbh->ping());
$self->{table} = (exists $options{table}) ? $options{table} : $self->{table};
die_from_caller("No 'datable table' specification") unless (defined $self->{table} and length $self->{table});
$self->_test_table_structure($dbh);
# all is good...
$self->{dbh} = $dbh;
return $self;
}
sub dbh { shift->{dbh} }
sub owned {
my $self = shift;
if (@_ > 0) {
my $owned = shift;
$self->{owned} = $owned ? 1 : 0;
}
return $self->{owned};
}
sub get_rules {
my ($self,$context,$key,$languages) = @_;
my $table = $self->{table};
my $dbh = $self->{dbh};
my @translations;
# ensure connection is good...
$dbh->ping() or $dbh = $self->_reconnect();
$dbh->do('SET NAMES utf8');
# setup query
my $qry = $self->get_query($table,$context,$languages);
print STDERR "Using query: $qry\n" if $DEBUG > 4;
my $sth = $dbh->prepare($qry);
my $rv = $sth->execute($key);
return undef unless (defined $rv and $rv > 0);
my ($k,$language,$expression,$priority,$translation,$owner);
$sth->bind_columns(\$k,\$language,\$expression,\$priority,\$translation,\$owner);
# make rules for each result
while ($sth->fetch()) {
push @translations, $self->make_rule(
key => $key,
language => $language,
expression => $expression,
priority => $priority,
translation => decode("UTF-8", $translation)
);
}
return \@translations;
}
sub get_query {
my ($self,$table,$context,$languages) = @_;
my $qry = join(' OR ', map("lower(tran_language) = '$_'", @$languages) );
$qry = sprintf('SELECT %s FROM %s WHERE tran_key = ? AND (%s)',$implicit_table_structure,$table,$qry);
my $custom = $self->get_where();
$qry .= " AND $custom" if $custom;
return $qry;
}
sub get_where {
my ($self) = @_;
my $customsql = '';
if(defined RVL::Session::singleton()->param('aPrefs.owner')){
my $owner = RVL::Session::singleton()->param('aPrefs.owner');
$customsql = sprintf(' (tran_owner = "%s") ;',$owner);
}else{
$customsql = sprintf(' (tran_owner = "rvadmin" OR tran_owner = "admin" OR tran_owner = "root");');
}
return $customsql;
}
sub DESTROY {
my $self = shift;
if ($self->{owned} && $self->{dbh}) {
$self->{dbh}->disconnect();
delete $self->{dbh};
delete $self->{owned};
}
}
sub _connect {
my ($self,$options) = @_;
$options = $self unless $options;
my $dsn = "dbi:".$options->{driver}.":dbname=". $options->{database} .";";
$dsn .= "host=". $options->{host} .";" if $options->{host};
$dsn .= "port=". $options->{port} .";" if $options->{port};
my $user = $options->{user};
my $password = $options->{password};
my $connect_options = $options->{connect_options};
# try connecting to database
my $dbh;
eval { $dbh = DBI->connect($dsn,$user,$password,$connect_options); };
die_from_caller("Failed to connect to database:\n- dsn: $dsn\n- user: ". (defined $user ? $user : '') ."\n- password: ". (defined $password ? $password : '') ."\n- connect options: ". Dumper($connect_options) ."\nError info:\n$@\n") if ($@);
if ($self != $options) {
$self->{driver} = $options->{driver};
$self->{database} = $options->{database};
$self->{host} = $options->{host};
$self->{port} = $options->{port};
$self->{user} = $options->{user};
$self->{connect_options} = $options->{connect_options};
$self->{table} = $options->{table};
}
return $dbh;
}
sub _test_table_structure {
my ($self,$dbh) = @_;
# make sure user specified table exists
eval {
my $qry = "SELECT 1 FROM ". $self->{table} ." LIMIT 1";
my $sth = $dbh->prepare($qry);
$sth->execute();
};
if ($@) {
$dbh->disconnect() if ($self->{owned} and $dbh);
die_from_caller("Table '". $self->{table} ."' doesn't exist");
}
# make sure user specified table has (at least) the minimum correct structure
eval {
my $qry = "SELECT $implicit_table_structure FROM ". $self->{table} ." LIMIT 1";
print STDERR $qry if $DEBUG > 4;
my $sth = $dbh->prepare($qry);
$sth->execute();
};
if ($@) {
$dbh->disconnect() if ($self->{owned} and $dbh);
die_from_caller("Table '". $self->{table} ."' doesn't exist");
}
# make sure user specified table has (at least) the minimum correct structure
eval {
my $qry = "SELECT $implicit_table_structure FROM ". $self->{table} ." LIMIT 1";
print STDERR $qry if $DEBUG > 4;
my $sth = $dbh->prepare($qry);
$sth->execute();
};
if ($@) {
$dbh->disconnect() if ($self->{owned} and $dbh);
die_from_caller("Table ". $self->{table} ." doesn't conform to implicit table structure: $implicit_table_structure");
}
}
sub _reconnect {
my ($self) = @_;
my $dbh = $self->{dbh};
# Make sure that we own the database handle, and have enough information to reconnect
die_from_caller("The database connection has failed for some reason... I cannot reconnect as I dont own the database handle...") unless $self->{owned};
die_from_caller("The database connection has failed for some reason... I cannot reconnect as I dont have any database connection parameters") unless $self->{database};
# cleanup handle
$dbh->disconnect() if $dbh;
$self->{dbh} = undef;
# reconnect to database
$dbh = $self->_connect();
# test database table structure
$self->_test_table_structure($dbh);
# all is good...
$self->{dbh} = $dbh;
return $dbh;
}
}
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