First Local Commit - After Clean up.

Signed-off-by: Rick Hays <rhays@haysgang.com>

system/Database/Exceptions/DataException.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace CodeIgniter\Database\Exceptions;
+
+class DataException extends \RuntimeException implements ExceptionInterface
+{
+	/**
+	 * Used by the Model's trigger() method when the callback cannot be found.
+	 *
+	 * @param string $method
+	 *
+	 * @return \CodeIgniter\Database\Exceptions\DataException
+	 */
+	public static function forInvalidMethodTriggered(string $method)
+	{
+		return new static(lang('Database.invalidEvent', [$method]));
+	}
+
+	/**
+	 * Used by Model's insert/update methods when there isn't
+	 * any data to actually work with.
+	 *
+	 * @param string $mode
+	 *
+	 * @return \CodeIgniter\Database\Exceptions\DataException
+	 */
+	public static function forEmptyDataset(string $mode)
+	{
+		return new static(lang('Database.emptyDataset', [$mode]));
+	}
+
+	/**
+	 * Thrown when an argument for one of the Model's methods
+	 * were empty or otherwise invalid, and they could not be
+	 * to work correctly for that method.
+	 *
+	 * @param string $argument
+	 *
+	 * @return \CodeIgniter\Database\Exceptions\DataException
+	 */
+	public static function forInvalidArgument(string $argument)
+	{
+		return new static(lang('Database.invalidArgument', [$argument]));
+	}
+
+	public static function forInvalidAllowedFields(string $model)
+	{
+		return new static(lang('Database.invalidAllowedFields', [$model]));
+	}
+
+	public static function forTableNotFound(string $table)
+	{
+		return new static(lang('Database.tableNotFound', [$table]));
+	}
+
+	public static function forEmptyInputGiven(string $argument)
+	{
+		return new static(lang('Database.forEmptyInputGiven', [$argument]));
+	}
+
+	public static function forFindColumnHaveMultipleColumns()
+	{
+		return new static(lang('Database.forFindColumnHaveMultipleColumns'));
+	}
+}

system/Database/Exceptions/DatabaseException.php

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+<?php
+
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP
+ *
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 British Columbia Institute of Technology
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @package    CodeIgniter
+ * @author     CodeIgniter Dev Team
+ * @copyright  2019 CodeIgniter Foundation
+ * @license    https://opensource.org/licenses/MIT	MIT License
+ * @link       https://codeigniter.com
+ * @since      Version 4.0.0
+ * @filesource
+ */
+
+namespace CodeIgniter\Database\Exceptions;
+
+use CodeIgniter\Exceptions\ExceptionInterface;
+
+class DatabaseException extends \Error implements ExceptionInterface
+{
+	/**
+	 * Exit status code
+	 *
+	 * @var integer
+	 */
+	protected $code = 8;
+}

system/Database/Exceptions/ExceptionInterface.php

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+<?php namespace CodeIgniter\Database\Exceptions;
+
+/**
+ * Provides a domain-level interface for broad capture
+ * of all database-related exceptions.
+ *
+ * catch (\CodeIgniter\Database\Exceptions\ExceptionInterface) { ... }
+ */
+
+interface ExceptionInterface extends \CodeIgniter\Exceptions\ExceptionInterface
+{
+
+}