diff --git a/src/Generators/FactoryGenerator.php b/src/Generators/FactoryGenerator.php
index 3060ddf5..0c0c7d3e 100644
--- a/src/Generators/FactoryGenerator.php
+++ b/src/Generators/FactoryGenerator.php
@@ -27,10 +27,7 @@ public function output(array $tree): array
         /** @var \Blueprint\Models\Model $model */
         foreach ($tree['models'] as $model) {
             $path = $this->getPath($model);
-            $this->files->put(
-                $path,
-                $this->populateStub($stub, $model)
-            );
+            $this->files->put($path, $this->populateStub($stub, $model));
 
             $output['created'][] = $path;
         }
@@ -67,12 +64,12 @@ protected function buildDefinition(Model $model)
                 continue;
             }
 
-            if ($column->dataType() === 'id') {
+            if (in_array($column->dataType(), ['id', 'uuid'])) {
                 $name = Str::beforeLast($column->name(), '_id');
                 $class = Str::studly($column->attributes()[0] ?? $name);
 
                 $definition .= self::INDENT . "'{$column->name()}' => ";
-                $definition .= sprintf("factory(%s::class)", '\\' . $model->fullyQualifiedNamespace() . '\\' . $class);
+                $definition .= sprintf('factory(%s::class)', '\\' . $model->fullyQualifiedNamespace() . '\\' . $class);
                 $definition .= ',' . PHP_EOL;
             } elseif (in_array($column->dataType(), ['enum', 'set']) and !empty($column->attributes())) {
                 $definition .= self::INDENT . "'{$column->name()}' => ";
@@ -98,6 +95,8 @@ protected function buildDefinition(Model $model)
                     implode(', ', [$scale, 0, (str_repeat(9, $precision - $scale) . '.' . str_repeat(9, $scale))]),
                     $definition
                 );
+            } elseif ($column->dataType() == 'json') {
+                $definition .= self::INDENT . "'{$column->name()}' => '[]'," . PHP_EOL;
             } else {
                 $definition .= self::INDENT . "'{$column->name()}' => ";
                 $faker = self::fakerData($column->name()) ?? self::fakerDataType($column->dataType());
@@ -158,11 +157,13 @@ public static function fakerDataType(string $type)
             'text' => 'text',
             'date' => 'date()',
             'time' => 'time()',
-            'guid' => 'word',
+            'guid' => 'uuid',
+            'uuid' => 'uuid',
             'datetimetz' => 'dateTime()',
             'datetime' => 'dateTime()',
             'timestamp' => 'dateTime()',
             'integer' => 'randomNumber()',
+            'unsignedsmallinteger' => 'randomNumber()',
             'bigint' => 'randomNumber()',
             'smallint' => 'randomNumber()',
             'decimal' => 'randomFloat(/** decimal_attributes **/)',
diff --git a/src/Generators/MigrationGenerator.php b/src/Generators/MigrationGenerator.php
index 0cea80b1..208a6932 100644
--- a/src/Generators/MigrationGenerator.php
+++ b/src/Generators/MigrationGenerator.php
@@ -30,10 +30,7 @@ public function output(array $tree): array
         /** @var \Blueprint\Models\Model $model */
         foreach ($tree['models'] as $model) {
             $path = $this->getPath($model, $sequential_timestamp->addSecond());
-            $this->files->put(
-                $path,
-                $this->populateStub($stub, $model)
-            );
+            $this->files->put($path, $this->populateStub($stub, $model));
 
             $output['created'][] = $path;
         }
@@ -57,15 +54,19 @@ protected function buildDefinition(Model $model)
         /** @var \Blueprint\Models\Column $column */
         foreach ($model->columns() as $column) {
             $dataType = $column->dataType();
-            if ($column->name() === 'id') {
+            if ($column->name() === 'id' && $dataType != 'uuid') {
                 $dataType = 'bigIncrements';
             } elseif ($column->dataType() === 'id') {
                 $dataType = 'unsignedBigInteger';
             }
 
+            if ($column->dataType() === 'uuid') {
+                $dataType = 'uuid';
+            }
+
             $definition .= self::INDENT . '$table->' . $dataType . "('{$column->name()}'";
 
-            if (!empty($column->attributes()) && $column->dataType() !== 'id') {
+            if (!empty($column->attributes()) && !in_array($column->dataType(), ['id', 'uuid'])) {
                 $definition .= ', ';
                 if (in_array($column->dataType(), ['set', 'enum'])) {
                     $definition .= json_encode($column->attributes());
@@ -75,15 +76,27 @@ protected function buildDefinition(Model $model)
             }
             $definition .= ')';
 
+            $foreign = '';
+
             foreach ($column->modifiers() as $modifier) {
                 if (is_array($modifier)) {
-                    $definition .= "->" . key($modifier) . "(" . current($modifier) . ")";
+                    if (key($modifier) == 'foreign') {
+                        $foreign =
+                            self::INDENT .
+                            '$table->foreign(' .
+                            "'{$column->name()}')->references('id')->on('" .
+                            Str::lower(Str::plural(current($modifier))) .
+                            "')->onDelete('cascade');" .
+                            PHP_EOL;
+                    } else {
+                        $definition .= '->' . key($modifier) . '(' . current($modifier) . ')';
+                    }
                 } else {
                     $definition .= '->' . $modifier . '()';
                 }
             }
 
-            $definition .= ';' . PHP_EOL;
+            $definition .= ';' . PHP_EOL . $foreign;
         }
 
         if ($model->usesSoftDeletes()) {
diff --git a/src/Generators/ModelGenerator.php b/src/Generators/ModelGenerator.php
index d0313eec..dd5da989 100644
--- a/src/Generators/ModelGenerator.php
+++ b/src/Generators/ModelGenerator.php
@@ -27,10 +27,7 @@ public function output(array $tree): array
         /** @var \Blueprint\Models\Model $model */
         foreach ($tree['models'] as $model) {
             $path = $this->getPath($model);
-            $this->files->put(
-                $path,
-                $this->populateStub($stub, $model)
-            );
+            $this->files->put($path, $this->populateStub($stub, $model));
 
             $output['created'][] = $path;
         }
@@ -194,6 +191,10 @@ private function castForColumn(Column $column)
             return 'decimal';
         }
 
+        if ($column->dataType() === 'json') {
+            return 'array';
+        }
+
         return null;
     }
 
@@ -201,7 +202,7 @@ private function pretty_print_array(array $data, $assoc = true)
     {
         $output = var_export($data, true);
         $output = preg_replace('/^\s+/m', '        ', $output);
-        $output = preg_replace(['/^array\s\(/', "/\)$/"], ['[', '    ]'], $output);
+        $output = preg_replace(['/^array\s\(/', '/\)$/'], ['[', '    ]'], $output);
 
         if (!$assoc) {
             $output = preg_replace('/^(\s+)[^=]+=>\s+/m', '$1', $output);
@@ -226,6 +227,7 @@ private function phpDataType(string $dataType)
     {
         static $php_data_types = [
             'id' => 'int',
+            'uuid' => 'string',
             'bigincrements' => 'int',
             'biginteger' => 'int',
             'boolean' => 'bool',
diff --git a/src/Lexers/ModelLexer.php b/src/Lexers/ModelLexer.php
index 13bb575b..bb6062b1 100644
--- a/src/Lexers/ModelLexer.php
+++ b/src/Lexers/ModelLexer.php
@@ -86,13 +86,16 @@ class ModelLexer implements Lexer
         'usecurrent' => 'useCurrent',
         'always' => 'always',
         'unique' => 'unique',
+        'index' => 'index',
+        'primary' => 'primary',
+        'foreign' => 'foreign',
     ];
 
     public function analyze(array $tokens): array
     {
         $registry = [
             'models' => [],
-            'cache' => []
+            'cache' => [],
         ];
 
         if (!empty($tokens['models'])) {
@@ -107,7 +110,6 @@ public function analyze(array $tokens): array
             }
         }
 
-
         return $registry;
     }
 
@@ -155,7 +157,7 @@ private function buildModel(string $name, array $columns)
             $column = $this->buildColumn($name, $definition);
             $model->addColumn($column);
 
-            if ($column->name() !== 'id' && $column->dataType() === 'id') {
+            if ($column->name() !== 'id' && in_array($column->dataType(), ['id', 'uuid'])) {
                 if ($column->attributes()) {
                     $model->addRelationship('belongsTo', $column->attributes()[0] . ':' . $column->name());
                 } else {