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| #!/usr/bin/perl -w
# #################################################################################################
# What: insert or update into db
# Created: 05/12/2010
# Modified: void
# #################################################################################################
# ##################################################################
# USAGE examples
# INSERT
# ./my_db_insert.pl --debug --database foo --table bar --user apache_user --pwd ze_mega_pwd --fields "id, id_client, serial_number, status, status_date" --datas "DEFAULT,109,123456,1,"
# UPDATE (AI fields to be removed, condition(s) to be added)
# ./my_db_insert.pl --debug --database foo --table bar --user apache_user --pwd ze_mega_pwd --fields "id_client, serial_number, status, status_date" --datas "109,1234568,1," --condition1 "id_client:109" --condition2 "serial_number:1234567"
# ##################################################################
# ------------------------------------------------------------------
# TODO
# Check that there is NO primary AI key in the fields when UPDATE
# Update conditions shall be free (not fixed to 2 conditions only)
# Generate LOGS
# ------------------------------------------------------------------
#
# MODULES
#
use strict;
use Switch;
use DBI;
use DBD::mysql;
use Getopt::Long ();
use Term::ANSIColor;
#
# CONSTANT
#
use constant true => 1;
use constant TRUE => 1;
use constant false => 0;
use constant FALSE => 0;
use constant DEBUG => true;
#
# SUB
#
sub usage {
my $message = $_[0];
if (defined $message && length $message) {
$message .= "\n"
unless $message =~ /\n$/;
}
my $command = $0;
$command =~ s#^.*/##;
print STDERR (
$message,
"usage: $command --debug --database db_name --table table --user db_user --pwd db_pwd --fields insert_fields --datas insert_data --condition insert_condition\n"
);
die("\n")
}
sub trim($) {
my $string = shift;
$string =~ s/^\s+//;
$string =~ s/\s+$//;
return $string;
}
sub create_placeholder{
# fields as an array passed to the function
my(@args) = @_;
my $string = $args[0];
my @binded = split(/,/, $string);
foreach (@binded) {
s/^.*$/\?/g;
}
# transform array to string
$string = join("," , @binded );
return $string;
}
#
# DEFAULT PARAMETERS
#
my $db_name;
my $table;
my $db_user;
my $db_pwd;
my $fields;
my $datas;
my $sql_condition;
my $condition1;
my $condition2;
my $first_cond_field;
my $first_cond_data;
my $second_cond_field;
my $second_cond_data;
my $query;
my $host = 'localhost';
my $debug;
my @datas_array;
# my $affectedrows;
#
# USER INPUT PARAMETERS
#
Getopt::Long::GetOptions(
'debug' => sub {
$debug = DEBUG;
print "DEBUG mode active\n" if ($debug); },
'db|database=s' => \$db_name,
't|table=s' => \$table,
'u|user=s' => \$db_user,
'p|pwd=s' => \$db_pwd,
'f|field|fields=s' => \$fields,
'd|data|datas=s' => \$datas,
'c1|condition1=s' => sub {
local *_ = \$_[1];
# /^([^:]+):(\w+)$/
/^([^:]+):([^:]+)$/
or die("Invalid format for option s.\n");
# secure a bit datas (sql injection by WHERE A=A clause)
$first_cond_field = &trim($1);
$first_cond_data = &trim($2);
if ($first_cond_data eq $first_cond_field) {
$condition1 = "";
}
else{
$condition1 = TRUE;
}
},
'c2|condition2=s' => sub {
local *_ = \$_[1];
# /^([^:]+):(\w+)$/
/^([^:]+):([^:]+)$/
or die("Invalid format for option s.\n");
# secure a bit datas (sql injection by WHERE A=A clause)
$second_cond_field = &trim($1);
$second_cond_data = &trim($2);
if ($second_cond_data eq $second_cond_field) {
$condition2 = "";
}
else{
$condition2 = TRUE;
}
},
)
or usage("Invalid command line options.");
if (!defined $debug) {
$debug = false;
}
usage("The database must be specified.")
unless defined $db_name;
usage("The database table must be specified.")
unless defined $table;
usage("The database user must be specified.")
unless defined $db_user;
if (!defined $db_pwd) {
print "The database user pwd MUST be specified,\n pls enter the db user pwd now: ";
$db_pwd = <STDIN>;
chomp($db_pwd); # remove EOL
}
usage("The database insert fields must be specified.")
unless defined $fields;
usage("The database insert values must be specified.")
unless defined $datas;
if (!defined $condition1 || length($condition1) == 0 ) {
print color ('bold blue'), "#" x 60, "\nInfo : no sql condition has been specified (=> INSERT mode)\n", "#" x 60, "\n", color("reset");
$condition1 = "";
$condition2 = ""; # we assume that if only 1 condition is specified => it goes to $condition1
$sql_condition = "";
}
else{
print color ('bold blue'), "#" x 60, "\nInfo : sql condition has been specified (=> UPDATE mode)\n", "#" x 60, "\n", color("reset");
$condition1 = "$first_cond_field = $first_cond_data" ;
$condition2 = (defined $second_cond_data || length($second_cond_data) != 0 ) ?" AND $second_cond_field = $second_cond_data" : "";
$sql_condition = $condition1 . $condition2 ;
}
#
# DEBUG CONTROL
#
print "\n", "#" x 60, "\nINPUT PARAMETERS CONTROL\n" if ($debug) ;
print "DEBUG: $debug,\ndatabase: $db_name,\ntable: $table,\nuser: $db_user,\npwd:$db_pwd,\nInsert fields:$fields,\nInsert datas: $datas,\ncondition: $sql_condition\nhost:$host\n" if ($debug) ;
print "#" x 60, "\n";
#
# DB CONNECTION
#
#
# Connect to dB
#
my $dbd = DBI->connect("dbi:mysql:dbname=$db_name;host=$host;mysql_server_prepare=1;",$db_user, $db_pwd)
or die 'Connexion impossible à la base de données : '.DBI::errstr;
#
# Query : insert or update
#
# INSERT
if ( !$sql_condition || !defined $sql_condition || length(&trim($sql_condition)) == 0 ) {
# FLAG
my $flag="insert_mode";
print "mode: $flag\n" if ($debug);
# DATAS: Create a placeholder string
my $place_holder = &create_placeholder($fields);
print "Place holder: $place_holder\n" if ($debug);
# if no binded params: $query = "INSERT INTO $table ($fields) VALUES ($datas)";
$query = "INSERT INTO $table ($fields) VALUES ($place_holder)";
print $query,"\n" if ($debug);
print "datas: $datas\n" if ($debug);
@datas_array = split(",", $datas);
print "datas array:" , @datas_array , "\n" if ($debug);
}
# UPDATE
else {
# FLAG
my $flag="update_mode";
print "mode: $flag\n" if ($debug);
# build bind_params : field_1 = ?, ... , field_n = ?
my @field_array = split("," , $fields) ;
foreach (@field_array) {
s/^(.*)$/$1=?,/g;
}
# remove trailing ","
@field_array->[-1] =~ s/^(.*),+$/$1/g ;
print "field_array: @field_array\n" if ($debug);
# update query
# $query = "UPDATE $table SET $fields=$datas WHERE $sql_condition";
$query = "UPDATE $table SET @field_array WHERE $sql_condition";
print $query,"\n" if ($debug);
@datas_array = split(",", $datas);
print "datas array:" , @datas_array , "\n" if ($debug);
}
#
# Prepare
#
my $prepared = $dbd->prepare($query)
or die 'Parse de la table: Impossible de préparer la requête : '.$dbd->errstr;
#
# Bind Params
#
my $inc=0;
foreach (@datas_array) {
$prepared->bind_param($inc+1, $datas_array[$inc]); # nota: placeholders are numbered from 1
$inc++;
}
#
# Execute queries
#
$prepared->execute()
or die 'Parse de la table: Impossible d\'exécuter la requête : '.$prepared->errstr;
# Not binded :
# my $result = $prepared->execute( $datas )
# or die 'Parse de la table: Impossible d\'exécuter la requête : '.$prepared->errstr;
#
# Check result
#
# AFFECTED ROWS (method not available with "DBD::mysql" module but with "use::Mysql")
# $affectedrows = $result->affectedrows($query);
# print "Result : $affectedrows affected rows","\n" if ($debug);
#
# Free memory and disconnect dB
#
$prepared->finish;
$dbd->disconnect; |
