improved performance. added support for database ports.

system/validation/error_collector.php

@@ -0,0 +1,123 @@
+<?php namespace System\Validation;
+
+class Error_Collector {
+
+	/**
+	 * All of the error messages.
+	 *
+	 * @var array
+	 */
+	public $messages;
+
+	/**
+	 * Create a new Error Collector instance.
+	 *
+	 * @return void
+	 */
+	public function __construct($messages = array())
+	{
+		$this->messages = $messages;
+	}
+
+	/**
+	 * Add an error message to the collector.
+	 *
+	 * Duplicate messages will not be added.
+	 *
+	 * @param  string  $attribute
+	 * @param  string  $message
+	 * @return void
+	 */
+	public function add($attribute, $message)
+	{
+		// -------------------------------------------------------------
+		// Make sure the error message is not duplicated.
+		//
+		// For example, the Nullable rules can add a "required" message.
+		// If the same message has already been added we don't want to
+		// add it again.
+		// -------------------------------------------------------------
+		if ( ! array_key_exists($attribute, $this->messages) or ! is_array($this->messages[$attribute]) or ! in_array($message, $this->messages[$attribute]))
+		{
+			$this->messages[$attribute][] = $message;
+		}
+	}
+
+	/**
+	 * Determine if errors exist for an attribute.
+	 *
+	 * @param  string  $attribute
+	 * @return bool
+	 */
+	public function has($attribute)
+	{
+		return $this->first($attribute) !== '';
+	}
+
+	/**
+	 * Get the first error message for an attribute.
+	 *
+	 * @param  string  $attribute
+	 * @return string
+	 */
+	public function first($attribute)
+	{
+		return (count($messages = $this->get($attribute)) > 0) ? $messages[0] : '';
+	}
+
+	/**
+	 * Get all of the error messages for an attribute.
+	 *
+	 * If no attribute is specified, all of the error messages will be returned.
+	 *
+	 * @param  string  $attribute
+	 * @param  string  $format
+	 * @return array
+	 */
+	public function get($attribute = null, $format = ':message')
+	{
+		if (is_null($attribute))
+		{
+			return $this->all($format);
+		}
+
+		return (array_key_exists($attribute, $this->messages)) ? $this->format($this->messages[$attribute], $format) : array();
+	}
+
+	/**
+	 * Get all of the error messages.
+	 *
+	 * @param  string  $format
+	 * @return array
+	 */
+	public function all($format = ':message')
+	{
+		$all = array();
+
+		// ---------------------------------------------------------
+		// Add each error message to the array of messages. Each
+		// messages will have the specified format applied to it.
+		// ---------------------------------------------------------
+		foreach ($this->messages as $messages)
+		{
+			$all = array_merge($all, $this->format($messages, $format));
+		}
+
+		return $all;
+	}
+
+	/**
+	 * Format an array of messages.
+	 *
+	 * @param  array   $messages
+	 * @param  string  $format
+	 * @return array
+	 */
+	private function format($messages, $format)
+	{
+		array_walk($messages, function(&$message, $key) use ($format) { $message = str_replace(':message', $message, $format); });
+
+		return $messages;
+	}
+
+}