working fieldset functionality

Author: cjzamora

.cradle.php

@@ -8,11 +8,13 @@
 require_once __DIR__ . '/src/Schema/events.php';
 require_once __DIR__ . '/src/Relation/events.php';
 require_once __DIR__ . '/src/Model/events.php';
+require_once __DIR__ . '/src/Fieldset/events.php';
 
 //bootstrap
 $this
     ->preprocess(include __DIR__ . '/src/bootstrap/schema.php')
     ->preprocess(include __DIR__ . '/src/bootstrap/helpers.php')
     ->preprocess(include __DIR__ . '/src/bootstrap/template.php')
     ->preprocess(include __DIR__ . '/src/bootstrap/files.php')
+    ->preprocess(include __DIR__ . '/src/bootstrap/fieldset.php')
     ->preprocess(include __DIR__ . '/src/bootstrap/controller.php');

src/Exception.php

@@ -20,13 +20,29 @@
  */
 class Exception extends BaseException
 {
+
+    /**
+     * @const string ERROR_FIELDSET_NOT_FOUND Error template
+     */
+    const ERROR_FIELDSET_NOT_FOUND = 'Could not find fieldset %s.';
+
     /**
-     * @const string ERROR_NO_MODEL Error template
+     * @const string ERROR_FIELDSET_EXISTS
+     */
+    const ERROR_FIELDSET_EXISTS = 'Unable to restore %s, fieldset already exists.';
+
+    /**
+     * @const string ERROR_FIELDSET_ARCHIVE_EXISTS
+     */
+    const ERROR_FIELDSET_ARCHIVE_EXISTS = 'Unable to archive %s, an archive of the fieldset already exists.';
+
+    /**
+     * @const string ERROR_NO_SCHEMA Error template
      */
     const ERROR_NO_SCHEMA = 'Schema is not loaded';
 
     /**
-     * @const string ERROR_CONFIG_NOT_FOUND Error template
+     * @const string ERROR_SCHEMA_NOT_FOUND Error template
      */
     const ERROR_SCHEMA_NOT_FOUND = 'Could not find schema %s.';
 
@@ -45,6 +61,46 @@ class Exception extends BaseException
      */
     const ERROR_SCHEMA_NO_RELATION = '%s has no relation to %s';
 
+    /**
+     * Create a new exception for missing fieldset
+     *
+     * @param *string $name
+     *
+     * @return Exception
+     */
+    public static function forFieldsetNotFound($name): Exception
+    {
+        $message = sprintf(static::ERROR_FIELDSET_NOT_FOUND, $name);
+        return new static($message);
+    }
+
+    /**
+     * Create a new exception if fieldset already exists
+     *
+     * @param *string $name
+     *
+     * @return Exception
+     */
+    public static function forFieldsetAlreadyExists(string $name)
+    {
+        $message = sprintf(static::ERROR_FIELDSET_EXISTS, $name);
+        return new static($message);
+    }
+
+    /**
+     * Create a new exception if an archived of the
+     * given fieldset already exists.
+     *
+     * @param *string $name
+     *
+     * @return Exception
+     */
+    public static function forFieldsetArchiveExists(string $name)
+    {
+        $message = sprintf(static::ERROR_FIELDSET_ARCHIVE_EXISTS, $name);
+        return new static($message);
+    }
+
     /**
      * Create a new exception for missing Schema
      *
@@ -66,7 +122,7 @@ public static function forNoSchema(): Exception
     }
 
     /**
-     * Create a new exception for missing config
+     * Create a new exception for missing Schema
      *
      * @param *string $name
      *