add remove_sequence helper

[dbsrgits/SQL-Translator-2.0-ish.git] / lib / SQL / Translator / Object / Table.pm

diff --git a/lib/SQL/Translator/Object/Table.pm b/lib/SQL/Translator/Object/Table.pm
index 54d28c1..444359c 100644 (file)
--- a/lib/SQL/Translator/Object/Table.pm
+++ b/lib/SQL/Translator/Object/Table.pm
@@ -27,10 +27,8 @@ class SQL::Translator::Object::Table extends SQL::Translator::Object is dirty {
             get_columns   => 'values',
             get_column    => 'get',
             add_column    => 'set',
-
-            ## compat
-            get_fields    => 'values',
-            fields        => 'keys',
+            remove_column => 'delete',
+            clear_columns => 'clear',
         },
         default => sub { my %hash = (); tie %hash, 'Tie::IxHash'; return \%hash },
     );
@@ -45,6 +43,7 @@ class SQL::Translator::Object::Table extends SQL::Translator::Object is dirty {
             get_indices  => 'values',
             get_index    => 'get',
             add_index    => 'set',
+            remove_index => 'delete',
         },
         default => sub { my %hash = (); tie %hash, 'Tie::IxHash'; return \%hash },
     );
@@ -59,6 +58,7 @@ class SQL::Translator::Object::Table extends SQL::Translator::Object is dirty {
             get_constraints   => 'values',
             get_constraint    => 'get',
             add_constraint    => 'set',
+            remove_constraint => 'delete',
         },
         default => sub { my %hash = (); tie %hash, 'Tie::IxHash'; return \%hash },
     );
@@ -73,6 +73,7 @@ class SQL::Translator::Object::Table extends SQL::Translator::Object is dirty {
             get_sequences   => 'values',
             get_sequence    => 'get',
             add_sequence    => 'set',
+            remove_sequence => 'delete',
         },
         default => sub { my %hash = (); tie %hash, 'Tie::IxHash'; return \%hash },
     );
@@ -81,7 +82,6 @@ class SQL::Translator::Object::Table extends SQL::Translator::Object is dirty {
         is => 'rw',
         isa => Schema,
         weak_ref => 1,
-        required => 1,
     );
 
     has 'temporary' => (
@@ -90,29 +90,59 @@ class SQL::Translator::Object::Table extends SQL::Translator::Object is dirty {
         default => 0
     );
 
-    around add_column(Column $column) { $self->$orig($column->name, $column) }
-    around add_constraint(Constraint $constraint) {
+    around add_column(Column $column does coerce) {
+        die "Can't use column name " . $column->name if $self->exists_column($column->name) || $column->name eq '';
+        $column->table($self);
+        return $self->$orig($column->name, $column);
+    }
+
+    around add_constraint(Constraint $constraint does coerce) {
         my $name = $constraint->name;
         if ($name eq '') {
             my $idx = 0;
             while ($self->exists_constraint('ANON' . $idx)) { $idx++ }
             $name = 'ANON' . $idx;
         }
+        $constraint->table($self);
         $self->$orig($name, $constraint)
     }
-    around add_index(Index $index) {
+
+    around add_index(Index $index does coerce) {
         my $name = $index->name;
         if ($name eq '') {
             my $idx = 0;
             while ($self->exists_index('ANON' . $idx)) { $idx++ }
             $name = 'ANON' . $idx;
         }
+        $index->table($self);
         $self->$orig($name, $index)
     }
-    around add_sequence(Sequence $sequence) { $self->$orig($sequence->name, $sequence) }
+
+    around add_sequence(Sequence $sequence does coerce) { $self->$orig($sequence->name, $sequence) }
 
     multi method primary_key(Any $) { grep /^PRIMARY KEY$/, $_->type for $self->get_constraints }
     multi method primary_key(Str $column) { $self->get_column($column)->is_primary_key(1) }
 
+    method is_valid { return $self->get_columns ? 1 : undef }
     method order { }
+
+    before name($name?) { die "Can't use table name $name, table already exists" if $name && $self->schema->exists_table($name) && $name ne $self->name }
+
+    around remove_column(Column|Str $column, Int :$cascade = 0) {
+        my $name = is_Column($column) ? $column->name : $column;
+        die "Can't drop non-existant column " . $name unless $self->exists_column($name);
+        $self->$orig($name);
+    }
+
+    around remove_index(Index|Str $index) {
+        my $name = is_Index($index) ? $index->name : $index;
+        die "Can't drop non-existant index " . $name unless $self->exists_index($name);
+        $self->$orig($name);
+    }
+
+    around remove_constraint(Constraint|Str $constraint) {
+        my $name = is_Constraint($constraint) ? $constraint->name : $constraint;
+        die "Can't drop non-existant constraint " . $name unless $self->exists_constraint($name);
+        $self->$orig($name);
+    }
 }