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package DBIx::InsertHash; |
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our $VERSION = '0.011'; |
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=head1 NAME |
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DBIx::InsertHash - insert/update a database record from a hash |
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=head1 VERSION |
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version 0.011 |
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=head1 SYNOPSIS |
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use DBIx::InsertHash; |
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# insert |
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DBIx::InsertHash->insert({USERNAME => 'foo', |
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PASSWORD => 'bar', |
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}, 'table', $dbh); |
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# update |
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DBIx::InsertHash->update({PASSWORD => 'foobar'}, |
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[12],'USERID = ?', |
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'table', $dbh); |
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# constructor usage |
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my $dbix = DBIx::InsertHash->new(quote => 1, |
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dbh => $dbh, |
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table => 'table', |
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where => 'USERID = ?', |
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); |
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$dbix->insert($hash); |
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$dbix->update($hash, [12]); |
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=cut |
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103356
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use strict; |
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use warnings; |
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use Carp qw(carp croak); |
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use base 'Class::Accessor::Fast'; |
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__PACKAGE__->mk_accessors(qw(quote quote_char quote_func |
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dbh table where |
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)); |
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=head1 DESCRIPTION |
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If you have data in a hash (which keys are matching the column names) and |
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want to insert it in a database, then this is the right module for you. |
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It frees you from having to construct the SQL statement. |
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It really only does a simple insert (or update) from a hash into a single |
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table. For anything beyond I suggest a ORM (object-relational mapper), |
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like L or L. |
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=head1 INTERFACE |
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=head2 new |
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Constructor (optional). Only needed to store default values or set |
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quoting options. |
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=over 4 |
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=item quote (BOOL) |
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Turn quoting of column names on (off by default). This switch affects |
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all column names (see L below to only quote specific names). |
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If you use MySQL, quoting is recommended. It is needed when column names |
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clash with reserved words. |
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=item quote_char (STRING) |
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Quoting character/string (default is backtick). |
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=item qoute_func (CODEREF) |
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This function is given the column name as first (and only) parameter. It |
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has to return a boolean, indicating if the column has to be quoted. |
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The following example uses L: |
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my $quote = sub { SQL::ReservedWords->is_reserved($_[0]) }; |
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my $dbix = DBIx::InsertHash->new(quote_func => $quote); |
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$dbix->insert(...); |
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=back |
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=cut |
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sub new { |
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my ($class, %arg) = @_; |
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$arg{quote_char} ||= '`'; |
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return $class->SUPER::new(\%arg); |
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} |
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=head2 insert |
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Insert hash in database. Returns L. |
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=over 4 |
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=item data (HASHREF) |
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Row data. The keys have to match with the column names of your table. |
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This parameter is mandatory. If an empty hashref is given, no record is |
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inserted and a warning is given. |
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=item table (STRING) |
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Table name. If this parameter is missing, the object default (see L |
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is used). Otherwise it dies. |
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=item dbh (OBJECT) |
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DBI database handle (you have to L yourself). If |
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this parameter is missing, the object default (see L) is used). |
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Otherwise it dies. |
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=back |
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=cut |
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sub insert { |
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my ($self, $data, $table, $dbh) = @_; |
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# object defaults |
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if (ref $self) { |
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$table ||= $self->table; |
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$dbh ||= $self->dbh; |
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} |
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# warnings/errors |
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unless (%$data) { |
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carp 'No data (empty hash)'; |
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return; |
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} |
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croak 'No table name' unless $table; |
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croak 'No DBI handle' unless $dbh; |
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# sort by hash key (predictable results) |
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my @column = sort keys %$data; |
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my @value = map { $data->{$_} } @column; |
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# quote column names? |
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if (ref $self and ($self->quote or $self->quote_func)) { |
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foreach my $col (@column) { |
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next unless $self->quote or $self->quote_func->($col); |
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$col = $self->quote_char . $col . $self->quote_char; |
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} |
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} |
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my $sql = 'INSERT INTO '.$table.' ('; |
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$sql .= join(', ', @column).') VALUES ('; |
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$sql .= join(', ', ('?') x (scalar @column)).')'; |
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$dbh->do($sql, {}, @value); |
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return $dbh->last_insert_id(undef, undef, $table, undef); |
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} |
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169
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=head2 update |
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Update record from hash. Returns L. |
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=over 4 |
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=item data (HASHREF) |
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Row data. The keys have to match with the column names of your table. |
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This parameter is mandatory. If an empty hashref is given, no record is |
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inserted and a warning is given. |
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=item bind_values (ARRAYREF) |
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L for the WHERE clause. If |
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you do not use or need them, just pass a false value (C or empty |
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string) or an empty arrayref. This parameter is optional and has no object |
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defaults. |
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=item where (STRING) |
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Where clause (with optional placeholders C>). If this parameter is |
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missing, the object default (see L) is used. Otherwise it dies. |
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=item table (STRING) |
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Table name. If this parameter is missing, the object default (see L |
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is used). Otherwise it dies. |
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=item dbh (OBJECT) |
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DBI database handle (you have to L yourself). If |
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this parameter is missing, the object default (see L) is used). |
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Otherwise it dies. |
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=back |
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=cut |
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208
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sub update { |
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1
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1
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1
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my ($self, $data, $vars, $where, $table, $dbh) = @_; |
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1
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6
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my @vars = ($vars ? @$vars : ()); |
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212
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# object defaults |
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1
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3
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if (ref $self) { |
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0
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0
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$where ||= $self->where; |
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$table ||= $self->table; |
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0
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0
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$dbh ||= $self->dbh; |
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} |
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219
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1
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50
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10
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unless (%$data) { |
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0
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0
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carp 'No data (empty hash)'; |
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0
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0
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return; |
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} |
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1
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50
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7
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croak 'No where clause' unless $where; |
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1
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4
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croak 'No table name' unless $table; |
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1
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50
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21
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croak 'No DBI handle' unless $dbh; |
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227
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# sort by hash key (predictable results) |
228
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1
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13
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my @column = sort keys %$data; |
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|
1
|
|
|
|
|
3
|
my @value = map { $data->{$_} } @column; |
|
2
|
|
|
|
|
6
|
|
230
|
|
|
|
|
|
|
|
231
|
|
|
|
|
|
|
# quote column names? |
232
|
1
|
0
|
0
|
|
|
4
|
if (ref $self and ($self->quote or $self->quote_func)) { |
|
|
|
33
|
|
|
|
|
233
|
0
|
|
|
|
|
0
|
foreach my $col (@column) { |
234
|
0
|
0
|
0
|
|
|
0
|
next unless $self->quote or $self->quote_func->($col); |
235
|
0
|
|
|
|
|
0
|
$col = $self->quote_char . $col . $self->quote_char; |
236
|
|
|
|
|
|
|
} |
237
|
|
|
|
|
|
|
} |
238
|
|
|
|
|
|
|
|
239
|
1
|
|
|
|
|
3
|
my $sql = 'UPDATE '.$table.' SET '; |
240
|
1
|
|
|
|
|
3
|
$sql .= join(', ', map { "$_ = ?" } @column).' WHERE '.$where; |
|
2
|
|
|
|
|
7
|
|
241
|
|
|
|
|
|
|
|
242
|
1
|
|
|
|
|
8
|
return $dbh->do($sql, {}, @value, @vars); |
243
|
|
|
|
|
|
|
} |
244
|
|
|
|
|
|
|
|
245
|
|
|
|
|
|
|
|
246
|
|
|
|
|
|
|
1; |
247
|
|
|
|
|
|
|
|
248
|
|
|
|
|
|
|
__END__ |