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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; |
c8f87617 |
7 | use Class::C3::Componentised (); |
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8 | |
9 | __PACKAGE__->mk_classdata('journal_storage_type'); |
10 | __PACKAGE__->mk_classdata('journal_connection'); |
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11 | __PACKAGE__->mk_classdata('journal_deploy_on_connect'); |
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12 | __PACKAGE__->mk_classdata('journal_sources'); ## [ source names ] |
13 | __PACKAGE__->mk_classdata('journal_user'); ## [ class, field for user id ] |
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14 | __PACKAGE__->mk_classdata('journal_copy_sources'); |
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15 | __PACKAGE__->mk_classdata('__journal_schema_prototype'); |
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16 | __PACKAGE__->mk_classdata('_journal_schema'); ## schema object for journal |
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17 | __PACKAGE__->mk_classdata('journal_component'); |
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18 | __PACKAGE__->mk_classdata('journal_components'); |
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19 | __PACKAGE__->mk_classdata('journal_nested_changesets'); |
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20 | __PACKAGE__->mk_classdata('journal_prefix'); |
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21 | |
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22 | use strict; |
23 | use warnings; |
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24 | |
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25 | |
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26 | sub _journal_schema_prototype { |
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27 | my $self = shift; |
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28 | if (my $proto = $self->__journal_schema_prototype) { |
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29 | return $proto; |
30 | } |
928b6c45 |
31 | my $c = blessed($self)||$self; |
32 | my $journal_schema_class = "${c}::_JOURNAL"; |
33 | Class::C3::Componentised->inject_base($journal_schema_class, 'DBIx::Class::Schema::Journal::DB'); |
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34 | $journal_schema_class->load_components($self->journal_components) |
35 | if $self->journal_components; |
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36 | my $proto = $self->__journal_schema_prototype ( |
37 | $journal_schema_class->compose_namespace( $c.'::Journal') |
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38 | ); |
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39 | |
40 | |
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41 | my $comp = $self->journal_component || "Journal"; |
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42 | |
43 | my $prefix = $self->journal_prefix || ''; |
44 | foreach my $audit (qw(ChangeSet ChangeLog)) { |
45 | my $class = blessed($proto) . "::$audit"; |
46 | |
47 | Class::C3::Componentised->inject_base($class, "DBIx::Class::Schema::Journal::DB::$audit"); |
48 | |
49 | $class->journal_define_table(blessed($proto), $prefix); |
50 | |
51 | $proto->register_class($audit, $class); |
52 | |
53 | $self->register_class($audit, $class) |
54 | if $self->journal_copy_sources; |
55 | } |
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56 | |
57 | ## Create auditlog+history per table |
58 | my %j_sources = map { $_ => 1 } $self->journal_sources |
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59 | ? @{$self->journal_sources} |
60 | : $self->sources; |
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61 | |
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62 | foreach my $s_name ($self->sources) { |
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63 | next unless($j_sources{$s_name}); |
64 | $self->create_journal_for($s_name => $proto); |
65 | $self->class($s_name)->load_components($comp); |
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66 | } |
67 | return $proto; |
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68 | } |
69 | |
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70 | sub connection { |
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71 | my $self = shift; |
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72 | my $schema = $self->next::method(@_); |
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73 | |
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74 | my $journal_schema = (ref $self||$self)->_journal_schema_prototype->clone; |
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75 | |
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76 | if($self->journal_connection) { |
77 | $journal_schema->storage_type($self->journal_storage_type) |
78 | if $self->journal_storage_type; |
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79 | $journal_schema->connection(@{ $self->journal_connection }); |
80 | } else { |
81 | $journal_schema->storage( $schema->storage ); |
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82 | } |
83 | |
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84 | $self->_journal_schema($journal_schema); |
85 | |
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86 | |
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87 | if ( $self->journal_nested_changesets ) { |
88 | $self->_journal_schema->nested_changesets(1); |
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89 | die 'FIXME nested changeset schema not yet supported... add parent_id to ChangeSet here'; |
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90 | } |
91 | |
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92 | $self->journal_schema_deploy() |
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93 | if $self->journal_deploy_on_connect; |
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94 | |
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95 | ## Set up relationship between changeset->user_id and this schema's user |
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96 | if(!@{$self->journal_user || []}) { |
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97 | #warn "No Journal User set!"; # no need to warn, user_id is useful even without a rel |
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98 | return $schema; |
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99 | } |
100 | |
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101 | $self->_journal_schema->class('ChangeSet')->belongs_to('user', @{$self->journal_user}); |
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102 | $self->_journal_schema->storage->disconnect(); |
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103 | |
104 | return $schema; |
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105 | } |
106 | |
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107 | sub deploy { |
108 | my $self = shift; |
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109 | |
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110 | $self->next::method(@_); |
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111 | |
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112 | $self->journal_schema_deploy(@_); |
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113 | } |
114 | |
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115 | sub journal_schema_deploy { |
116 | my $self = shift; |
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117 | |
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118 | $self->_journal_schema->deploy(@_); |
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119 | } |
120 | |
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121 | sub create_journal_for { |
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122 | my ($self, $s_name, $journal_schema) = @_; |
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123 | |
124 | my $source = $self->source($s_name); |
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125 | |
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126 | foreach my $audit (qw(AuditLog AuditHistory)) { |
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127 | my $audit_source = $s_name.$audit; |
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128 | my $class = blessed($journal_schema) . "::$audit_source"; |
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129 | |
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130 | Class::C3::Componentised->inject_base($class, "DBIx::Class::Schema::Journal::DB::$audit"); |
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131 | |
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132 | $class->journal_define_table($source, blessed($journal_schema)); |
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133 | |
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134 | $journal_schema->register_class($audit_source, $class); |
135 | |
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136 | $self->register_class($audit_source, $class) |
137 | if $self->journal_copy_sources; |
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138 | } |
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139 | } |
140 | |
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141 | sub txn_do { |
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142 | my ($self, $user_code, @args) = @_; |
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143 | |
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144 | my $jschema = $self->_journal_schema; |
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145 | |
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146 | my $code = $user_code; |
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147 | |
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148 | my $current_changeset = $jschema->_current_changeset; |
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149 | if ( !$current_changeset || $self->journal_nested_changesets ) { |
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150 | my $current_changeset_ref = $jschema->_current_changeset_container; |
151 | |
152 | unless ( $current_changeset_ref ) { |
153 | # this is a hash because scalar refs can't be localized |
154 | $current_changeset_ref = { }; |
155 | $jschema->_current_changeset_container($current_changeset_ref); |
156 | } |
157 | |
158 | # wrap the thunk with a new changeset creation |
159 | $code = sub { |
794e01fa |
160 | my $changeset = $jschema->journal_create_changeset( parent_id => $current_changeset ); |
161 | local $current_changeset_ref->{changeset} = $changeset->id; |
162 | $user_code->(@_); |
163 | }; |
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164 | |
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165 | } |
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166 | |
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167 | if ( $jschema->storage != $self->storage ) { |
168 | my $inner_code = $code; |
169 | $code = sub { $jschema->txn_do($inner_code, @_) }; |
170 | } |
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171 | |
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172 | return $self->next::method($code, @args); |
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173 | } |
174 | |
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175 | sub changeset_user { |
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176 | my ($self, $userid) = @_; |
177 | |
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178 | return $self->_journal_schema->current_user() |
179 | if @_ == 1; |
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180 | |
181 | $self->_journal_schema->current_user($userid); |
182 | } |
183 | |
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184 | sub changeset_session { |
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185 | my ($self, $sessionid) = @_; |
186 | |
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187 | return $self->_journal_schema->current_session() |
188 | if @_ == 1; |
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189 | |
190 | $self->_journal_schema->current_session($sessionid); |
191 | } |
192 | |
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193 | 1; |