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1 | package DBIx::Class::Schema::Journal; |
2 | |
3 | use base qw/DBIx::Class/; |
4 | |
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5 | use Scalar::Util 'blessed'; |
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6 | use DBIx::Class::Schema::Journal::DB; |
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7 | |
8 | __PACKAGE__->mk_classdata('journal_storage_type'); |
9 | __PACKAGE__->mk_classdata('journal_connection'); |
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10 | __PACKAGE__->mk_classdata('journal_deploy_on_connect'); |
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11 | __PACKAGE__->mk_classdata('journal_sources'); ## [ source names ] |
12 | __PACKAGE__->mk_classdata('journal_user'); ## [ class, field for user id ] |
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13 | __PACKAGE__->mk_classdata('journal_copy_sources'); |
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14 | __PACKAGE__->mk_classdata('__journal_schema_prototype'); |
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15 | __PACKAGE__->mk_classdata('_journal_schema'); ## schema object for journal |
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16 | __PACKAGE__->mk_classdata('journal_component'); |
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17 | __PACKAGE__->mk_classdata('journal_nested_changesets'); |
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18 | |
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19 | use strict; |
20 | use warnings; |
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21 | |
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22 | |
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23 | sub _journal_schema_prototype |
24 | { |
25 | my $self = shift; |
26 | if (my $proto = $self->__journal_schema_prototype) |
27 | { |
28 | return $proto; |
29 | } |
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30 | my $proto = $self->__journal_schema_prototype |
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31 | ( |
32 | DBIx::Class::Schema::Journal::DB->compose_namespace |
33 | ( |
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34 | (blessed($self)||$self) . '::Journal' |
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35 | ) |
36 | ); |
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37 | my $comp = $self->journal_component || "Journal"; |
38 | |
39 | ## Create auditlog+history per table |
40 | my %j_sources = map { $_ => 1 } $self->journal_sources |
41 | ? @{$self->journal_sources} |
42 | : $self->sources; |
43 | |
44 | foreach my $s_name ($self->sources) |
45 | { |
46 | next unless($j_sources{$s_name}); |
47 | $self->create_journal_for($s_name => $proto); |
48 | $self->class($s_name)->load_components($comp); |
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49 | } |
50 | return $proto; |
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51 | } |
52 | |
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53 | sub connection |
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54 | { |
55 | my $self = shift; |
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56 | my $schema = $self->next::method(@_); |
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57 | |
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58 | my $journal_schema = (ref $self||$self)->_journal_schema_prototype->clone; |
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59 | |
60 | if($self->journal_connection) |
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61 | { |
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62 | if($self->journal_storage_type) |
63 | { |
64 | $journal_schema->storage_type($self->journal_storage_type); |
65 | } |
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66 | $journal_schema->connection(@{ $self->journal_connection }); |
67 | } else { |
68 | $journal_schema->storage( $schema->storage ); |
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69 | } |
70 | |
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71 | $self->_journal_schema($journal_schema); |
72 | |
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73 | |
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74 | if ( $self->journal_nested_changesets ) { |
75 | $self->_journal_schema->nested_changesets(1); |
76 | die "FIXME nested changeset schema not yet supported... add parent_id to ChangeSet here"; |
77 | } |
78 | |
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79 | $self->journal_schema_deploy() |
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80 | if $self->journal_deploy_on_connect; |
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81 | |
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82 | ## Set up relationship between changeset->user_id and this schema's user |
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83 | if(!@{$self->journal_user || []}) |
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84 | { |
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85 | #warn "No Journal User set!"; # no need to warn, user_id is useful even without a rel |
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86 | return $schema; |
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87 | } |
88 | |
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89 | $self->_journal_schema->class('ChangeSet')->belongs_to('user', @{$self->journal_user}); |
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90 | $self->_journal_schema->storage->disconnect(); |
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91 | |
92 | return $schema; |
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93 | } |
94 | |
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95 | sub deploy |
96 | { |
97 | my ( $self, $sqlt_args, @args ) = @_; |
98 | |
99 | $self->next::method($sqlt_args, @args); |
100 | |
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101 | $self->journal_schema_deploy($sqlt_args, @args); |
102 | } |
103 | |
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104 | sub journal_schema_deploy |
105 | { |
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106 | my ( $self, $sqlt_args, @args ) = @_; |
107 | |
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108 | $self->_journal_schema->deploy( $sqlt_args, @args ); |
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109 | } |
110 | |
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111 | sub create_journal_for |
112 | { |
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113 | my ($self, $s_name, $journal_schema) = @_; |
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114 | |
115 | my $source = $self->source($s_name); |
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116 | |
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117 | foreach my $audit (qw(AuditLog AuditHistory)) { |
118 | my $audit_source = join("", $s_name, $audit); |
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119 | my $class = blessed($journal_schema) . "::$audit_source"; |
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120 | |
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121 | DBIx::Class::Componentised->inject_base($class, "DBIx::Class::Schema::Journal::DB::$audit"); |
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122 | |
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123 | $class->journal_define_table($source); |
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124 | |
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125 | $journal_schema->register_class($audit_source, $class); |
126 | |
127 | if ($self->journal_copy_sources) |
128 | { |
129 | $self->register_class($audit_source, $class); |
130 | } |
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131 | } |
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132 | } |
133 | |
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134 | sub txn_do |
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135 | { |
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136 | my ($self, $user_code, @args) = @_; |
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137 | |
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138 | my $jschema = $self->_journal_schema; |
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139 | |
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140 | my $code = $user_code; |
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141 | |
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142 | my $current_changeset = $jschema->_current_changeset; |
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143 | if ( !$current_changeset || $self->journal_nested_changesets ) |
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144 | { |
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145 | my $current_changeset_ref = $jschema->_current_changeset_container; |
146 | |
147 | unless ( $current_changeset_ref ) { |
148 | # this is a hash because scalar refs can't be localized |
149 | $current_changeset_ref = { }; |
150 | $jschema->_current_changeset_container($current_changeset_ref); |
151 | } |
152 | |
153 | # wrap the thunk with a new changeset creation |
154 | $code = sub { |
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155 | my $changeset = $jschema->journal_create_changeset( parent_id => $current_changeset ); |
156 | local $current_changeset_ref->{changeset} = $changeset->id; |
157 | $user_code->(@_); |
158 | }; |
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159 | |
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160 | } |
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161 | |
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162 | if ( $jschema->storage != $self->storage ) { |
163 | my $inner_code = $code; |
164 | $code = sub { $jschema->txn_do($inner_code, @_) }; |
165 | } |
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166 | |
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167 | return $self->next::method($code, @args); |
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168 | } |
169 | |
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170 | sub changeset_user |
171 | { |
172 | my ($self, $userid) = @_; |
173 | |
174 | return $self->_journal_schema->current_user() if(@_ == 1); |
175 | |
176 | $self->_journal_schema->current_user($userid); |
177 | } |
178 | |
179 | sub changeset_session |
180 | { |
181 | my ($self, $sessionid) = @_; |
182 | |
183 | return $self->_journal_schema->current_session() if(@_ == 1); |
184 | |
185 | $self->_journal_schema->current_session($sessionid); |
186 | } |
187 | |
188 | |
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189 | 1; |