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package # hide from PAUSE |
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DBIx::Class::Relationship::ManyToMany; |
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use strict; |
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use warnings; |
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use DBIx::Class::Carp; |
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1865
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use DBIx::Class::_Util qw( quote_sub perlstring ); |
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752
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20563
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# FIXME - this should go away |
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# instead Carp::Skip should export usable keywords or something like that |
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my $unique_carper; |
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BEGIN { $unique_carper = \&carp_unique } |
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use namespace::clean; |
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our %_pod_inherit_config = |
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( |
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class_map => { 'DBIx::Class::Relationship::ManyToMany' => 'DBIx::Class::Relationship' } |
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); |
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sub many_to_many { |
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my ($class, $meth, $rel, $f_rel, $rel_attrs) = @_; |
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$class->throw_exception( |
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"missing relation in many-to-many" |
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) unless $rel; |
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$class->throw_exception( |
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"missing foreign relation in many-to-many" |
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) unless $f_rel; |
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my $add_meth = "add_to_${meth}"; |
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my $remove_meth = "remove_from_${meth}"; |
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my $set_meth = "set_${meth}"; |
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my $rs_meth = "${meth}_rs"; |
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for ($add_meth, $remove_meth, $set_meth, $rs_meth) { |
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if ( $class->can ($_) ) { |
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carp (<<"EOW") unless $ENV{DBIC_OVERWRITE_HELPER_METHODS_OK}; |
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*************************************************************************** |
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The many-to-many relationship '$meth' is trying to create a utility method |
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called $_. |
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This will completely overwrite one such already existing method on class |
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$class. |
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You almost certainly want to rename your method or the many-to-many |
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relationship, as the functionality of the original method will not be |
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accessible anymore. |
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To disable this warning set to a true value the environment variable |
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DBIC_OVERWRITE_HELPER_METHODS_OK |
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*************************************************************************** |
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EOW |
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} |
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} |
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my @main_meth_qsub_args = ( |
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{}, |
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{ attributes => [ |
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'DBIC_method_is_indirect_sugar', |
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3664
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100
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12521
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( keys( %{$rel_attrs||{}} ) |
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3664
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100
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32591
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65
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? 'DBIC_method_is_m2m_sugar_with_attrs' |
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: 'DBIC_method_is_m2m_sugar' |
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), |
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] }, |
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); |
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71
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72
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3664
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37648
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quote_sub "${class}::${meth}", sprintf( <<'EOC', $rs_meth ), @main_meth_qsub_args; |
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DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_INDIRECT_CALLS and DBIx::Class::_Util::fail_on_internal_call; |
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shift->%s( @_ )->search; |
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EOC |
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77
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78
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my @extra_meth_qsub_args = ( |
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{ |
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3664
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100
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33880
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'$rel_attrs' => \{ alias => $f_rel, %{ $rel_attrs||{} } }, |
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'$carp_unique' => \$unique_carper, |
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}, |
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{ attributes => [ |
84
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'DBIC_method_is_indirect_sugar', |
85
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3664
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100
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1472249
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( keys( %{$rel_attrs||{}} ) |
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3664
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100
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28506
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86
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? 'DBIC_method_is_m2m_extra_sugar_with_attrs' |
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: 'DBIC_method_is_m2m_extra_sugar' |
88
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), |
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] }, |
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); |
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92
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93
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3664
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23522
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quote_sub "${class}::${rs_meth}", sprintf( <<'EOC', map { perlstring $_ } ( "${class}::${meth}", $rel, $f_rel ) ), @extra_meth_qsub_args; |
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10992
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28198
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94
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95
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DBIx::Class::_ENV_::ASSERT_NO_INTERNAL_INDIRECT_CALLS |
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and |
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# allow nested calls from our ->many_to_many, see comment below |
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( (CORE::caller(1))[3] ne %s ) |
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and |
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DBIx::Class::_Util::fail_on_internal_call; |
101
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102
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# this little horror is there replicating a deprecation from |
103
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# within search_rs() itself |
104
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shift->related_resultset( %s ) |
105
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->related_resultset( %s ) |
106
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->search_rs ( |
107
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undef, |
108
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( @_ > 1 and ref $_[-1] eq 'HASH' ) |
109
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? { %%$rel_attrs, %%{ pop @_ } } |
110
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: $rel_attrs |
111
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)->search_rs(@_) |
112
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; |
113
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EOC |
114
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115
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# the above is the only indirect method, the 3 below have too much logic |
116
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3664
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1503319
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shift @{$extra_meth_qsub_args[1]{attributes}}; |
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3664
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13997
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117
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118
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119
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3664
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51104
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quote_sub "${class}::${add_meth}", sprintf( <<'EOC', $add_meth, $rel, $f_rel ), @extra_meth_qsub_args; |
120
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121
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( @_ >= 2 and @_ <= 3 ) or $_[0]->throw_exception( |
122
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"'%1$s' expects an object or hashref to link to, and an optional hashref of link data" |
123
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); |
124
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125
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$_[0]->throw_exception( |
126
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"The optional link data supplied to '%1$s' is not a hashref (it was previously ignored)" |
127
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) if $_[2] and ref $_[2] ne 'HASH'; |
128
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129
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my( $self, $far_obj ) = @_; |
130
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131
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my $guard; |
132
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133
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# the API is always expected to return the far object, possibly |
134
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# creating it in the process |
135
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if( not defined Scalar::Util::blessed( $far_obj ) ) { |
136
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137
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$guard = $self->result_source->schema->storage->txn_scope_guard; |
138
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139
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# reify the hash into an actual object |
140
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$far_obj = $self->result_source |
141
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->related_source( q{%2$s} ) |
142
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->related_source( q{%3$s} ) |
143
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->resultset |
144
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->search_rs( undef, $rel_attrs ) |
145
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->find_or_create( $far_obj ); |
146
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} |
147
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148
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my $link = $self->new_related( |
149
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q{%2$s}, |
150
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$_[2] || {}, |
151
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); |
152
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153
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$link->set_from_related( q{%3$s}, $far_obj ); |
154
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155
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$link->insert(); |
156
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157
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$guard->commit if $guard; |
158
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159
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$far_obj; |
160
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EOC |
161
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162
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163
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3664
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1560468
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quote_sub "${class}::${set_meth}", sprintf( <<'EOC', $set_meth, $add_meth, $rel, $f_rel ), @extra_meth_qsub_args; |
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165
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my $self = shift; |
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167
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my $set_to = ( ref $_[0] eq 'ARRAY' ) |
168
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? ( shift @_ ) |
169
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: do { |
170
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$carp_unique->( |
171
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"Calling '%1$s' with a list of items to link to is deprecated, use an arrayref instead" |
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); |
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174
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# gobble up everything from @_ into a new arrayref |
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[ splice @_ ] |
176
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} |
177
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; |
178
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179
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# make sure folks are not invoking a bizarre mix of deprecated and curent syntax |
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$self->throw_exception( |
181
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"'%1$s' expects an arrayref of objects or hashrefs to link to, and an optional hashref of link data" |
182
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) if ( |
183
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@_ > 1 |
184
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or |
185
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( defined $_[0] and ref $_[0] ne 'HASH' ) |
186
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); |
187
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188
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my $guard; |
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190
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# there will only be a single delete() op, unless we have what to set to |
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$guard = $self->result_source->schema->storage->txn_scope_guard |
192
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if @$set_to; |
193
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194
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# if there is a where clause in the attributes, ensure we only delete |
195
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# rows that are within the where restriction |
196
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$self->related_resultset( q{%3$s} ) |
197
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->search_rs( |
198
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( $rel_attrs->{where} |
199
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? ( $rel_attrs->{where}, { join => q{%4$s} } ) |
200
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: () |
201
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) |
202
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)->delete; |
203
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204
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# add in the set rel objects |
205
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$self->%2$s( |
206
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$_, |
207
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@_, # at this point @_ is either empty or contains a lone link-data hash |
208
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) for @$set_to; |
209
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210
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$guard->commit if $guard; |
211
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EOC |
212
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213
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214
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|
|
|
|
# the last method needs no captures - just kill it all with fire |
215
|
3664
|
|
|
|
|
1500602
|
$extra_meth_qsub_args[0] = {}; |
216
|
|
|
|
|
|
|
|
217
|
|
|
|
|
|
|
|
218
|
3664
|
|
|
|
|
41241
|
quote_sub "${class}::${remove_meth}", sprintf( <<'EOC', $remove_meth, $rel, $f_rel ), @extra_meth_qsub_args; |
219
|
|
|
|
|
|
|
|
220
|
|
|
|
|
|
|
$_[0]->throw_exception("'%1$s' expects an object") |
221
|
|
|
|
|
|
|
unless defined Scalar::Util::blessed( $_[1] ); |
222
|
|
|
|
|
|
|
|
223
|
|
|
|
|
|
|
$_[0]->related_resultset( q{%2$s} ) |
224
|
|
|
|
|
|
|
->search_rs( $_[1]->ident_condition( q{%3$s} ), { join => q{%3$s} } ) |
225
|
|
|
|
|
|
|
->delete; |
226
|
|
|
|
|
|
|
EOC |
227
|
|
|
|
|
|
|
|
228
|
|
|
|
|
|
|
} |
229
|
|
|
|
|
|
|
|
230
|
|
|
|
|
|
|
1; |