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package Class::DBI::FormBuilder::Meta::Column; |
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170
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use strict; |
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use warnings; |
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use base qw( Class::Accessor Class::Data::Inheritable ); |
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BEGIN |
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{ |
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# this is the list of column meta that we are interested in - add more items if wanted |
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3537
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__PACKAGE__->mk_classdata( 'column_attributes', [ qw( column_def column_size decimal_digits |
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nullable is_nullable |
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ordinal_position type_name foo |
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mysql_values mysql_type_name ) ] ); |
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1272
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__PACKAGE__->mk_accessors( qw( name table column_attributes ), @{ __PACKAGE__->column_attributes } ); |
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} |
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use overload '""' => 'name'; |
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*order = \&ordinal_position; |
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*digits = \&decimal_digits; |
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*size = \&column_size; |
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*default = \&column_def; |
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=head1 NAME |
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Class::DBI::FormBuilder::Meta::Column |
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=head1 DESCRIPTION |
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Access to column metadata. |
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=head1 METHODS |
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=over 4 |
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=item new($table, $name, $meta) |
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Returns a new meta object for the column. |
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Stringifies to the column's C. |
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=cut |
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sub new |
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{ |
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my ($proto, $table, $name, $meta) = @_; |
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0
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my $self = bless { table => $table, # reference to table meta object |
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name => $name, |
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%$meta, |
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}, ref($proto) || $proto; |
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0
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return $self; |
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} |
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59
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=item table |
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Returns the L object associated with this column. |
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63
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=back |
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65
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=head2 Column attribute accessors |
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67
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=over 4 |
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=item name |
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=item order |
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=item ordinal_position |
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Alias for C. |
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=item digits |
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=item decimal_digits |
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Alias for C. |
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=item size |
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=item column_size |
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Alias for C. |
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=item default |
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=item column_def |
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Alias for C. |
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=item nullable |
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=item is_nullable |
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99
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=item type |
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=item type_name |
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103
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Alias for C. |
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105
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=item mysql_values |
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107
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=item mysql_type_name |
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109
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=cut |
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110
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111
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sub type |
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112
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{ |
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113
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0
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0
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1
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my ( $self ) = @_; |
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114
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115
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0
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0
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my $type = $self->type_name || die "No type_name for $self"; |
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116
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117
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0
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return lc $type; |
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118
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} |
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119
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120
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=item options |
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121
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122
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Returns the possible values for an enumerated column, and whether the |
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123
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column can store multiple value. |
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124
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125
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Currently only implemented for MySQL C (multiple is false) and |
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126
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C (multiple is true) column types, but should be easy to support |
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127
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other databases that offer similar column types. |
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128
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129
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=back |
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131
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=cut |
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133
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sub options |
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134
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{ |
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135
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0
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my ($self) = @_; |
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137
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0
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my $type = $self->type; |
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138
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139
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0
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my $series = $type =~ /^(?:set|enum)$/o ? $self->mysql_values : []; |
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140
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141
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0
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0
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my $multiple = 1 if $type eq 'set'; |
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142
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143
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0
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return $series, $multiple; |
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144
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} |
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145
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146
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147
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1; |
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150
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__END__ |