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package DBIx::Hash2Table; |
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71500
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use strict; |
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use warnings; |
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use Carp; |
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1425
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our $VERSION = '2.05'; |
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# ----------------------------------------------- |
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# Preloaded methods go here. |
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# ----------------------------------------------- |
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# Encapsulated class data. |
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{ |
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my(%_attr_data) = |
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( |
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_columns => '', |
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_dbh => '', |
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_extras => [], |
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_hash_ref => '', |
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_table_name => '', |
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); |
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sub _default_for |
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{ |
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my($self, $attr_name) = @_; |
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$_attr_data{$attr_name}; |
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} |
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sub _save |
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{ |
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my($self, $sth, $hash_ref, $parent) = @_; |
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my(@bind); |
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for my $key (keys %$hash_ref) |
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{ |
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# If we have a hash ref, which we almost always do have... |
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if (ref($$hash_ref{$key}) eq 'HASH') |
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{ |
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$$self{'_id'}++; |
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@bind = ($$self{'_id'}, $parent, $key); |
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for (@{$$self{'_extras'} }) |
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{ |
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push(@bind, exists($$hash_ref{$key}{$_}) ? $$hash_ref{$key}{$_} : undef); |
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} |
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$sth -> execute(@bind); |
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# Curse again. (Aka 'recurse', for non-native speakers of English.) |
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$self -> _save($sth, $$hash_ref{$key}, $$self{'_id'}); |
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} |
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} |
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} # End of _save. |
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sub _standard_keys |
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{ |
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keys %_attr_data; |
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} |
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} |
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# ----------------------------------------------- |
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74
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sub insert |
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{ |
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my($self) = @_; |
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$$self{'_extras'} = [sort @{$$self{'_extras'} }]; |
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my($sql) = "insert into $$self{'_table_name'} (" . join(', ', @{$$self{'_columns'} }, @{$$self{'_extras'} }) . ') values (' . join(', ', ('?') x ($#{$$self{'_columns'} } + $#{$$self{'_extras'} } + 2) ) . ')'; |
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my($sth) = $$self{'_dbh'} -> prepare($sql); |
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$$self{'_id'} = 0; |
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$self -> _save($sth, $$self{'_hash_ref'}, 0); |
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} # End of insert. |
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# ----------------------------------------------- |
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88
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sub new |
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{ |
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my($class, %arg) = @_; |
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my($self) = bless({}, $class); |
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for my $attr_name ($self -> _standard_keys() ) |
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{ |
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0
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my($arg_name) = $attr_name =~ /^_(.*)/; |
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97
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0
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if (exists($arg{$arg_name}) ) |
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{ |
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$$self{$attr_name} = $arg{$arg_name}; |
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} |
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else |
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{ |
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$$self{$attr_name} = $self -> _default_for($attr_name); |
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} |
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} |
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107
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croak(__PACKAGE__ . ". You must supply a value for each parameter except 'extras'") |
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if (! ($$self{'_columns'} && $$self{'_dbh'} && $$self{'_hash_ref'} && $$self{'_table_name'}) ); |
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0
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0
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109
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110
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return $self; |
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112
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} # End of new. |
113
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114
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# ----------------------------------------------- |
115
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116
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1; |
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__END__ |