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.IX Title "SQL::Translator::Schema::Trigger 3pm"
.TH SQL::Translator::Schema::Trigger 3pm "2022-11-19" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
SQL::Translator::Schema::Trigger \- SQL::Translator trigger object
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 11
\&  use SQL::Translator::Schema::Trigger;
\&  my $trigger = SQL::Translator::Schema::Trigger\->new(
\&    name                => \*(Aqfoo\*(Aq,
\&    perform_action_when => \*(Aqbefore\*(Aq, # or after
\&    database_events     => [qw/update insert/], # also update, update_on, delete
\&    fields              => [],       # if event is "update"
\&    on_table            => \*(Aqfoo\*(Aq,    # table name
\&    action              => \*(Aq...\*(Aq,    # text of trigger
\&    schema              => $schema,  # Schema object
\&    scope               => \*(Aqrow\*(Aq,    # or statement
\&  );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`SQL::Translator::Schema::Trigger\*(C'\fR is the trigger object.
.SH "METHODS"
.IX Header "METHODS"
.SS "new"
.IX Subsection "new"
Object constructor.
.PP
.Vb 1
\&  my $schema = SQL::Translator::Schema::Trigger\->new;
.Ve
.SS "perform_action_when"
.IX Subsection "perform_action_when"
Gets or sets whether the event happens \*(L"before\*(R" or \*(L"after\*(R" the
\&\f(CW\*(C`database_event\*(C'\fR.
.PP
.Vb 1
\&  $trigger\->perform_action_when(\*(Aqafter\*(Aq);
.Ve
.SS "database_event"
.IX Subsection "database_event"
Obsolete please use database_events!
.SS "database_events"
.IX Subsection "database_events"
Gets or sets the events that triggers the trigger.
.PP
.Vb 1
\&  my $ok = $trigger\->database_events(\*(Aqinsert\*(Aq);
.Ve
.SS "fields"
.IX Subsection "fields"
Gets and set which fields to monitor for \f(CW\*(C`database_event\*(C'\fR.
.PP
.Vb 5
\&  $view\->fields(\*(Aqid\*(Aq);
\&  $view\->fields(\*(Aqid\*(Aq, \*(Aqname\*(Aq);
\&  $view\->fields( \*(Aqid, name\*(Aq );
\&  $view\->fields( [ \*(Aqid\*(Aq, \*(Aqname\*(Aq ] );
\&  $view\->fields( qw[ id name ] );
\&
\&  my @fields = $view\->fields;
.Ve
.SS "table"
.IX Subsection "table"
Gets or set the table on which the trigger works, as a SQL::Translator::Schema::Table object.
  \f(CW$trigger\fR\->table($triggered_table);
.SS "on_table"
.IX Subsection "on_table"
Gets or set the table name on which the trigger works, as a string.
  \f(CW$trigger\fR\->on_table('foo');
.SS "action"
.IX Subsection "action"
Gets or set the action of the trigger.
.PP
.Vb 8
\&  $trigger\->action(
\&      q[
\&        BEGIN
\&          select ...;
\&          update ...;
\&        END
\&      ]
\&  );
.Ve
.SS "is_valid"
.IX Subsection "is_valid"
Determine whether the trigger is valid or not.
.PP
.Vb 1
\&  my $ok = $trigger\->is_valid;
.Ve
.SS "name"
.IX Subsection "name"
Get or set the trigger's name.
.PP
.Vb 1
\&  my $name = $trigger\->name(\*(Aqfoo\*(Aq);
.Ve
.SS "order"
.IX Subsection "order"
Get or set the trigger's order.
.PP
.Vb 1
\&  my $order = $trigger\->order(3);
.Ve
.SS "scope"
.IX Subsection "scope"
Get or set the trigger's scope (row or statement).
.PP
.Vb 1
\&    my $scope = $trigger\->scope(\*(Aqstatement\*(Aq);
.Ve
.SS "schema"
.IX Subsection "schema"
Get or set the trigger's schema object.
.PP
.Vb 2
\&  $trigger\->schema( $schema );
\&  my $schema = $trigger\->schema;
.Ve
.SS "compare_arrays"
.IX Subsection "compare_arrays"
Compare two arrays.
.SS "equals"
.IX Subsection "equals"
Determines if this trigger is the same as another
.PP
.Vb 1
\&  my $is_identical = $trigger1\->equals( $trigger2 );
.Ve
.SH "AUTHORS"
.IX Header "AUTHORS"
Anonymous,
Ken Youens-Clark <kclark@cpan.org>.