X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fp5-DBIx-Class-ResultSet-RecursiveUpdate;a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FResultSet%2FRecursiveUpdate.pm;h=1293af495e7f10e18cd2a391bf3580e56043dcd9;hp=1c408252dff1cbaef14d3d587224963634d7ceda;hb=d4ee4f4adda9878107222bcf1d921dcfc5c23181;hpb=073ab86177b3de3f95b1d2a0dc97f3e8e582c7a6

diff --git a/lib/DBIx/Class/ResultSet/RecursiveUpdate.pm b/lib/DBIx/Class/ResultSet/RecursiveUpdate.pm
index 1c40825..1293af4 100644
--- a/lib/DBIx/Class/ResultSet/RecursiveUpdate.pm
+++ b/lib/DBIx/Class/ResultSet/RecursiveUpdate.pm
@@ -1,27 +1,54 @@
+use strict;
+use warnings;
 package DBIx::Class::ResultSet::RecursiveUpdate;
 
-use version; $VERSION = qv('0.001');
+our $VERSION = '0.013';
 
-use warnings;
-use strict;
+use base qw(DBIx::Class::ResultSet);
+
+sub recursive_update {
+    my ( $self, $updates, $fixed_fields ) = @_;
+    return DBIx::Class::ResultSet::RecursiveUpdate::Functions::recursive_update(
+        resultset    => $self,
+        updates      => $updates,
+        fixed_fields => $fixed_fields
+    );
+}
+
+package DBIx::Class::ResultSet::RecursiveUpdate::Functions;
 use Carp;
 use Scalar::Util qw( blessed );
 
-use base qw(DBIx::Class::ResultSet);
 
 sub recursive_update {
-    my ( $self, $updates, $fixed_fields ) = @_;
+    my %params = @_;
+    my ( $self, $updates, $fixed_fields, $object, $resolved, $if_not_submitted ) = @params{ qw/resultset updates fixed_fields object resolved if_not_submitted/ }; 
+    $resolved ||= {};
     # warn 'entering: ' . $self->result_source->from();
-
     carp 'fixed fields needs to be an array ref' if $fixed_fields && ref($fixed_fields) ne 'ARRAY';
     my %fixed_fields;
     %fixed_fields = map { $_ => 1 } @$fixed_fields if $fixed_fields;
-
     if ( blessed($updates) && $updates->isa('DBIx::Class::Row') ) {
         return $updates;
     }
-
-
+    if ( $updates->{id} ){
+        $object = $self->find( $updates->{id}, { key => 'primary' } );
+    }
+    my @missing =
+      grep { !exists $updates->{$_} && !exists $fixed_fields{$_} } $self->result_source->primary_columns;
+    if ( !$object && !scalar @missing ) {
+#        warn 'finding by: ' . Dumper( $updates ); use Data::Dumper;
+        $object = $self->find( $updates, { key => 'primary' } );
+    }
+    $updates = { %$updates, %$resolved };
+    @missing =
+      grep { !exists $resolved->{$_} } @missing;
+    if ( !$object && !scalar @missing ) {
+#        warn 'finding by +resolved: ' . Dumper( $updates ); use Data::Dumper;
+        $object = $self->find( $updates, { key => 'primary' } );
+    }
+    $object ||= $self->new( {} );
+    # warn Dumper( $updates ); use Data::Dumper;
     # direct column accessors
     my %columns;
 
@@ -32,8 +59,11 @@ sub recursive_update {
     # relations that that should be done after the row is inserted into the database
     # like has_many and might_have
     my %post_updates;
-    my %columns_by_accessor = $self->_get_columns_by_accessor;
-
+    my %other_methods;
+    my %columns_by_accessor = _get_columns_by_accessor( $self );
+#    warn 'resolved: ' . Dumper( $resolved );
+#    warn 'updates: ' . Dumper( $updates ); use Data::Dumper;
+#    warn 'columns: ' . Dumper( \%columns_by_accessor );
     for my $name ( keys %$updates ) {
         my $source = $self->result_source;
         if ( $columns_by_accessor{$name}
@@ -43,11 +73,14 @@ sub recursive_update {
             $columns{$name} = $updates->{$name};
             next;
         }
-        next if !$source->has_relationship($name);
+        if( !( $source->has_relationship($name) ) ){
+            $other_methods{$name} = $updates->{$name};
+            next;
+        }
         my $info = $source->relationship_info($name);
         if (
             _master_relation_cond(
-                $source, $info->{cond}, $self->_get_pk_for_related($name)
+                $source, $info->{cond}, _get_pk_for_related( $self, $name)
             )
           )
         {
@@ -57,42 +90,47 @@ sub recursive_update {
             $post_updates{$name} = $updates->{$name};
         }
     }
-    # warn 'columns: ' . Dumper( \%columns ); use Data::Dumper;
+    # warn 'other: ' . Dumper( \%other_methods ); use Data::Dumper;
 
-    my $object;
-    my @missing =
-      grep { !exists $columns{$_} && !exists $fixed_fields{$_} } $self->result_source->primary_columns;
-    if ( !scalar @missing ) {
-        $object = $self->find( \%columns, { key => 'primary' } );
-    }
-    $object ||= $self->new( {} );
-
-# first update columns and other accessors - so that later related records can be found
+    # first update columns and other accessors - so that later related records can be found
     for my $name ( keys %columns ) {
-        $object->$name( $updates->{$name} );
+        $object->$name( $columns{$name} );
+    }
+    for my $name ( keys %other_methods) {
+        $object->$name( $updates->{$name} ) if $object->can( $name );
     }
     for my $name ( keys %pre_updates ) {
         my $info = $object->result_source->relationship_info($name);
-        $self->_update_relation( $name, $updates, $object, $info );
+        _update_relation( $self, $name, $updates, $object, $info, $if_not_submitted );
     }
-    $self->_delete_empty_auto_increment($object);
-
+#    $self->_delete_empty_auto_increment($object);
 # don't allow insert to recurse to related objects - we do the recursion ourselves
 #    $object->{_rel_in_storage} = 1;
-    $object->update_or_insert;
+
+    $object->update_or_insert if $object->is_changed;
 
     # updating many_to_many
     for my $name ( keys %$updates ) {
         next if exists $columns{$name};
         my $value = $updates->{$name};
 
-        if ( $self->is_m2m($name) ) {
-            my ($pk) = $self->_get_pk_for_related($name);
+        if ( is_m2m( $self, $name) ) {
+            my ($pk) = _get_pk_for_related( $self, $name);
             my @rows;
             my $result_source = $object->$name->result_source;
-            for my $elem ( @{ $updates->{$name} } ) {
+            my @updates;
+            if( ! defined $value ){
+                next;
+            }
+            elsif( ref $value ){
+                @updates = @{ $value };
+            }
+            else{
+                @updates = ( $value );
+            }
+            for my $elem ( @updates ) {
                 if ( ref $elem ) {
-                    push @rows, $result_source->resultset->find($elem);
+                    push @rows, recursive_update( resultset => $result_source->resultset, updates => $elem );
                 }
                 else {
                     push @rows,
@@ -105,7 +143,7 @@ sub recursive_update {
     }
     for my $name ( keys %post_updates ) {
         my $info = $object->result_source->relationship_info($name);
-        $self->_update_relation( $name, $updates, $object, $info );
+        _update_relation( $self, $name, $updates, $object, $info, $if_not_submitted );
     }
     return $object;
 }
@@ -123,29 +161,63 @@ sub _get_columns_by_accessor {
 }
 
 sub _update_relation {
-    my ( $self, $name, $updates, $object, $info ) = @_;
-
+    my ( $self, $name, $updates, $object, $info, $if_not_submitted ) = @_;
     my $related_result =
       $self->related_resultset($name)->result_source->resultset;
-    my $resolved =
-      $self->result_source->resolve_condition( $info->{cond}, $name, $object );
+    my $resolved;
+    if( $self->result_source->can( '_resolve_condition' ) ){
+        $resolved = $self->result_source->_resolve_condition( $info->{cond}, $name, $object );
+    }
+    else{
+        $resolved = $self->result_source->resolve_condition( $info->{cond}, $name, $object );
+    }
 
  #                    warn 'resolved: ' . Dumper( $resolved ); use Data::Dumper;
-    $resolved = undef
-      if $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION == $resolved;
+    $resolved = {}
+      if defined $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION && $DBIx::Class::ResultSource::UNRESOLVABLE_CONDITION == $resolved;
     if ( ref $updates->{$name} eq 'ARRAY' ) {
+        my @updated_ids;
         for my $sub_updates ( @{ $updates->{$name} } ) {
-            $sub_updates = { %$sub_updates, %$resolved } if $resolved;
             my $sub_object =
-              $related_result->recursive_update( $sub_updates );
+              recursive_update( resultset => $related_result, updates => $sub_updates, resolved => $resolved );
+            push @updated_ids, $sub_object->id;
+        }
+        my @related_pks = $related_result->result_source->primary_columns;
+        if( defined $if_not_submitted && $if_not_submitted eq 'delete' ){
+            if ( 1 == scalar @related_pks ){
+                $object->$name->search( { $related_pks[0] => { -not_in => \@updated_ids } } )->delete;
+            }
+        }
+        elsif( defined $if_not_submitted && $if_not_submitted eq 'set_to_null' ){
+            if ( 1 == scalar @related_pks ){
+                my @fk = keys %$resolved;
+                $object->$name->search( { $related_pks[0] => { -not_in => \@updated_ids } } )->update( { $fk[0] => undef } );
+            }
         }
     }
     else {
         my $sub_updates = $updates->{$name};
-        $sub_updates = { %$sub_updates, %$resolved } if $resolved;
-        my $sub_object =
-          $related_result->recursive_update( $sub_updates );
-        $object->set_from_related( $name, $sub_object );
+        my $sub_object;
+        if( ref $sub_updates ){
+            # for might_have relationship
+            if( $info->{attrs}{accessor} eq 'single' && defined $object->$name ){
+                $sub_object = recursive_update( 
+                    resultset => $related_result, 
+                    updates => $sub_updates, 
+                    object =>  $object->$name 
+                );
+            }
+            else{
+                $sub_object =
+                recursive_update( resultset => $related_result, updates => $sub_updates, resolved => $resolved );
+            }
+        }
+        elsif( ! ref $sub_updates ){
+            $sub_object = $related_result->find( $sub_updates ) 
+                unless (!$sub_updates && ($info->{attrs}{join_type} eq 'LEFT'));
+        }
+        $object->set_from_related( $name, $sub_object )
+          unless (!$sub_object && !$sub_updates && ($info->{attrs}{join_type} eq 'LEFT'));
     }
 }
 
@@ -205,8 +277,8 @@ sub _get_pk_for_related {
     }
 
     # many to many case
-    if ( $self->is_m2m($relation) ) {
-        $result_source = $self->get_m2m_source($relation);
+    if ( is_m2m($self, $relation) ) {
+        $result_source = get_m2m_source($self, $relation);
     }
     return $result_source->primary_columns;
 }
@@ -242,15 +314,26 @@ __END__
 
 =head1 NAME
 
-DBIx::Class::ResultSet::RecursiveUpdate - like update_or_create - but recursive 
-
+DBIx::Class::ResultSet::RecursiveUpdate - like update_or_create - but recursive
 
-=head1 VERSION
+=head1 SYNOPSIS
 
-This document describes DBIx::Class::ResultSet::RecursiveUpdate version 0.001
+The functional interface:
+
+    my $new_item = DBIx::Class::ResultSet::RecursiveUpdate::Functions::recursive_update({ 
+        resultset => $schema->resultset( 'Dvd' ),
+        updates => {
+            id => 1, 
+            owned_dvds => [ 
+                { 
+                  title => 'One Flew Over the Cuckoo's Nest' 
+                } 
+            ] 
+        }
+    });
 
 
-=head1 SYNOPSIS
+As ResultSet subclass:
 
     __PACKAGE__->load_namespaces( default_resultset_class => '+DBIx::Class::ResultSet::RecursiveUpdate' );
 
@@ -270,6 +353,8 @@ Then:
 
   
 =head1 DESCRIPTION
+This is still experimental. I've added a functional interface so that it can be used 
+in Form Processors and not require modification of the model.
 
 You can feed the ->create method with a recursive datastructure and have the related records
 created.  Unfortunately you cannot do a similar thing with update_or_create - this module
@@ -302,12 +387,13 @@ then you need to inform recursive_update about additional predicate with a secon
       [ 'id' ]
     );
 
+This will work with a new DBIC release.
 
 For a many_to_many (pseudo) relation you can supply a list of primary keys
 from the other table - and it will link the record at hand to those and
 only those records identified by them.  This is convenient for handling web
 forms with check boxes (or a SELECT box with multiple choice) that let you
-update such (pseudo) relations.
+update such (pseudo) relations.  
 
 For a description how to set up base classes for ResultSets see load_namespaces
 in DBIx::Class::Schema.