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POGlobal symbol "$queryDelete" requires explicit package name
 

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  1. POGlobal symbol "$queryDelete" requires explicit package name
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    <p>I want to delete data from database using perl CGI but it shows me the error: Global symbol "$queryDelete" requires explicit package name at Dbm.pm line 10.</p> <pre><code>package Dbm; use DBI; use strict; use POSIX "fmod"; sub connection { return DBI-&gt;connect("DBI:mysql:boys:127.0.0.1" ,'root',''); }; sub do_delete { my $rData = shift; $queryDelete = " WHERE "; my $cWhere = get_condition($rData); my $queryDelete="DELETE FROM $rData-&gt;{table} $cWhere"; my $dbh = connection; my $sqlDelete = $dbh-&gt;prepare($queryDelete) or die "Can't prepare $queryDelete: $dbh-&gt;errstr\n"; return ($sqlDelete-&gt;execute) or die "can't execute the query: $sqlDelete-&gt;errstr"; } sub get_condition{ my $rData = shift; my $cWhere = " 1=1 "; while (my ($key,$value) = each $rData-&gt;{condition}) { if (ref($value) eq 'ARRAY'){ $cWhere .= " AND "; #print $key.$value-&gt;[0]; my $counter=0; foreach my $cValueArray (@{$value}){ if(fmod($counter,3)==0) { $cWhere.=" ".$key." ".$cValueArray." "; } else { $cWhere.= " ".$cValueArray. " "; } $counter++; } }else{ #print "$key=$value\n $cWhere .= " AND ". $key."=". $value; } }; return $cWhere; } 1; </code></pre> <p>test.pl</p> <pre><code> my $q = new CGI(); my $handle = Dbm::connection(); sub test_delete{ my $rData = { table =&gt;'boys', condition =&gt; { ID =&gt; 99, Emri =&gt; ['&lt;&gt;','\'mon\'','AND','like','\'boy%\''], } }; return Dbm::do_delete($rData); }; print $q-&gt; start_html( -title =&gt; "Main", -style =&gt; [ {-src =&gt;'/media/css/ui-lightness/jquery-ui-1.10.3.custom.css', -rel=&gt;'alternate'}, {-src =&gt;'/media/css/ui-lightness/mystyle.css', -rel=&gt;'stylesheet', -type=&gt;'text/css'} ], -script =&gt; [ { -src=&gt;'/media/js/jquery-1.9.1.js'}, { -src=&gt;'/media/js/jquery-ui-1.10.3.custom.js' } ] ); print test_delete(); </code></pre>
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