decimal input

Model/Behavior/DecimalInputBehavior.php

@@ -0,0 +1,176 @@
+<?php
+/**
+ * //ALREADY exists as number_format in a slightly different way!
+ *
+ * 20,01 => 20.01 (!)
+ * 11.222 => 11222
+ *
+ * @author Mark Scherer
+ * @license MIT
+ * @cakephp 2.0
+ * 
+ * TODO: rename to NumberFormat Behavior?
+ * 2011-06-21 ms
+ */
+class DecimalInputBehavior extends ModelBehavior {
+
+	public $default = array(
+		'before' => 'validate', // safe or validate
+		'input' => true, // true = activated
+		'output' => false, // true = activated
+		'fields' => array(
+		),
+		'observedTypes' => array(
+			'float'
+		),
+		'localeconv' => false,
+		# based on input (output other direction)
+		'transform' => array(
+			'.' => '',
+			',' => '.',
+			//'multiply' => 0
+		),
+		'transformReverse' => array(),
+	);
+
+	public $delimiterBaseFormat = array();
+	public $delimiterFromFormat = array();
+
+
+	/**
+	* adjust configs like: $Model->Behaviors-attach('DecimalInput', array('fields'=>array('xyz')))
+	*/
+	public function setup(Model $Model, $config = array()) {
+		$this->config[$Model->alias] = $this->default;
+		$this->config[$Model->alias] = array_merge($this->config[$Model->alias], $config);
+
+		$numberFields = array();
+		if (!empty($Model->_schema)) {
+			foreach ($Model->_schema as $key => $values) {
+				if (isset($values['type']) && !in_array($key, $this->config[$Model->alias]['fields']) && in_array($values['type'], $this->config[$Model->alias]['observedTypes'])) {
+					array_push($numberFields, $key);
+				}
+			}
+		}
+		$this->config[$Model->alias]['fields'] = array_merge($this->config[$Model->alias]['fields'], $numberFields);
+		/*
+		if ($this->config[$Model->alias]['localeconv']) {
+			# use locale settings
+			$loc = localeconv();
+		} else {
+			# use configure settings
+			$loc = (array)Configure::read('Localization');
+		}
+		*/
+		$this->Model = $Model;
+	}
+
+
+	//Function before save.
+	public function beforeValidate(Model $Model) {
+		if ($this->config[$Model->alias]['before'] != 'validate') {
+			return true;
+		}
+
+		$this->prepInput($Model->data); //direction is from interface to database
+		return true;
+	}
+
+
+	//Function before save.
+	public function beforeSave(Model $Model) {
+		if ($this->config[$Model->alias]['before'] != 'save') {
+			return true;
+		}
+
+		$this->prepInput($Model->data); //direction is from interface to database
+		return true;
+	}
+
+
+	public function afterFind(Model $Model, $results) {
+		if (!$this->config[$Model->alias]['output'] || empty($results)) {
+			return $results;
+		}
+
+		$results = $this->prepOutput($results); //direction is from database to interface
+		return $results;
+	}
+
+
+	public function prepInput(&$data) {
+		foreach ($data[$this->Model->alias] as $key => $field) {
+			if (in_array($key, $this->config[$this->Model->alias]['fields'])) {
+				$data[$this->Model->alias][$key] = $this->_format($field, 'in');
+			}
+		}
+	}
+
+	public function prepOutput($data) {
+		foreach ($data as $datakey => $record) {
+			if (!isset($record[$this->Model->alias])) {
+				return $data;
+			}
+			foreach ($record[$this->Model->alias] as $key => $field) {
+				if (in_array($key, $this->config[$this->Model->alias]['fields'])) {
+					$data[$datakey][$this->Model->alias][$key] = $this->_format($field, 'out');
+				}
+			}
+		}
+		return $data;
+	}
+
+
+	protected function _format($value, $dir = 'in') {
+		$this->_setTransformations($dir);
+		if ($dir == 'out') {
+			$value = str_replace($this->delimiterFromFormat, $this->delimiterBaseFormat, (String)$value);
+		} else {
+			$value = str_replace(' ', '', $value);
+			$value = (float)str_replace($this->delimiterFromFormat, $this->delimiterBaseFormat, $value);
+		}
+		return $value;
+	}
+
+
+	protected function _setTransformations($dir) {
+		$from = array();
+		$base = array();
+		$transform = $this->config[$this->Model->alias]['transform'];
+		if (!empty($this->config[$this->Model->alias]['transformReverse'])) {
+			$transform = $this->config[$this->Model->alias]['transformReverse'];
+		} else {
+			if ($dir == 'out') {
+				$transform = array_reverse($transform, true);
+			}
+		}
+		foreach ($transform as $key => $value) {
+			$from[] = $key;
+			$base[] = $value;
+		}
+
+		if ($dir == 'out') {
+			$this->delimiterFromFormat = $base;
+			$this->delimiterBaseFormat = $from;
+		} else {
+			$this->delimiterFromFormat = $from;
+			$this->delimiterBaseFormat = $base;
+		}
+	}
+
+
+/*
+beforeValidate
+$Model->data[$Model->alias][$field] = str_replace($loc['decimal_point'], "#", $Model->data[$Model->alias][$field]);
+$Model->data[$Model->alias][$field] = str_replace($loc['thousands_sep'], "", $Model->data[$Model->alias][$field]);
+$Model->data[$Model->alias][$field] = str_replace("#", ".", $Model->data[$Model->alias][$field]);
+
+afterFind
+$m[$Model->alias][$field] = str_replace('.', '#', $m[$Model->alias][$field]);
+$m[$Model->alias][$field] = str_replace(',', $loc['thousands_sep'], $m[$Model->alias][$field]);
+$m[$Model->alias][$field] = str_replace('#', $loc['decimal_point'], $m[$Model->alias][$field]);
+*/
+
+
+}
+