1: <?php
  2: 
  3: /**
  4:  * The Double complex data type
  5:  * 
  6:  * @package alpha::model::types
  7:  * @since 1.0
  8:  * @author John Collins <dev@alphaframework.org>
  9:  * @version $Id: Double.inc 1496 2012-02-12 20:32:21Z alphadev $
 10:  * @license http://www.opensource.org/licenses/bsd-license.php The BSD License
 11:  * @copyright Copyright (c) 2012, John Collins (founder of Alpha Framework).  
 12:  * All rights reserved.
 13:  * 
 14:  * <pre>
 15:  * Redistribution and use in source and binary forms, with or 
 16:  * without modification, are permitted provided that the 
 17:  * following conditions are met:
 18:  * 
 19:  * * Redistributions of source code must retain the above 
 20:  *   copyright notice, this list of conditions and the 
 21:  *   following disclaimer.
 22:  * * Redistributions in binary form must reproduce the above 
 23:  *   copyright notice, this list of conditions and the 
 24:  *   following disclaimer in the documentation and/or other 
 25:  *   materials provided with the distribution.
 26:  * * Neither the name of the Alpha Framework nor the names 
 27:  *   of its contributors may be used to endorse or promote 
 28:  *   products derived from this software without specific 
 29:  *   prior written permission.
 30:  *   
 31:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 32:  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 33:  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 34:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 35:  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 36:  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 37:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
 38:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 39:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 40:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 41:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 42:  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
 43:  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 44:  * </pre>
 45:  *  
 46:  */
 47: class Double extends AlphaType implements AlphaTypeInterface {
 48:     /**
 49:      * The value of the Double
 50:      * 
 51:      * @var double
 52:      * @since 1.0
 53:      */
 54:     private $value;
 55:     
 56:     /**
 57:      * The validation rule (reg-ex) applied to Double values
 58:      *
 59:      * @var string
 60:      * @since 1.0
 61:      */
 62:     private $validationRule;
 63:     
 64:     /**
 65:      * The error message for the Double type when validation fails
 66:      * 
 67:      * @var string
 68:      * @since 1.0
 69:      */
 70:     protected $helper = 'Not a valid double value!';
 71:     
 72:     /**
 73:      * The size of the value for the Double
 74:      * 
 75:      * @var integer
 76:      * @since 1.0
 77:      */
 78:     private $size = 13;
 79:     
 80:     /**
 81:      * The absolute maximum size of the value for the this double
 82:      * 
 83:      * @var integer
 84:      * @since 1.0
 85:      */
 86:     const MAX_SIZE = 13;
 87:     
 88:     /**
 89:      * Constructor
 90:      *
 91:      * @param double $val
 92:      * @since 1.0
 93:      * @throws IllegalArguementException
 94:      */
 95:     public function __construct($val=0.0) { 
 96:         $this->validationRule = AlphaValidator::REQUIRED_DOUBLE;
 97:         
 98:         if(!AlphaValidator::isDouble($val))
 99:             throw new IllegalArguementException($this->helper);
100:         
101:         if (strlen($val) <= $this->size) {
102:             $this->value = $val;
103:         }else{
104:             throw new IllegalArguementException($this->helper);
105:         }
106:     }
107:     
108:     /**
109:      * Setter for the Double value
110:      *
111:      * @param double $val
112:      * @since 1.0
113:      * @throws IllegalArguementException
114:      */
115:     public function setValue($val) {                
116:         if(!AlphaValidator::isDouble($val))
117:             throw new IllegalArguementException($this->helper);
118:         
119:         if (strlen($val) <= $this->size) {
120:             $this->value = $val;
121:         }else{
122:             throw new IllegalArguementException($this->helper);
123:         }
124:     }
125:     
126:     /**
127:      * Getter for the Double value
128:      *
129:      * @return double
130:      * @since 1.0
131:      */
132:     public function getValue() {
133:         return $this->value;
134:     }
135:     
136:     /**
137:      * Get the validation rule
138:      *
139:      * @return string
140:      * @since 1.0
141:      */
142:     public function getRule() {
143:         return $this->validationRule;
144:     }   
145:     
146:     /**
147:      * Used to set the allowable size of the Double in the database field
148:      *
149:      * @param integer $size
150:      * @since 1.0
151:      * @throws IllegalArguementException
152:      */
153:     public function setSize($size) {
154:         if ($size <= self::MAX_SIZE) {
155:             $this->size = $size;
156:         }else{
157:             throw new IllegalArguementException('The value '.$size.' provided by setSize is greater than the MAX_SIZE '.self::MAX_SIZE.' of this data type.');
158:         }   
159:     }
160:     
161:     /**
162:      * Get the allowable size of the Double in the database field
163:      *
164:      * @param boolean $databaseDimension
165:      * @return mixed
166:      * @since 1.0
167:      */
168:     public function getSize($databaseDimension=false){
169:         if($databaseDimension)
170:             return $this->size.',2';
171:         else
172:             return $this->size;
173:     }
174: 
175:     /**
176:      * Used to convert the object to a printable string
177:      *
178:      * @return string
179:      * @since 1.0
180:      */
181:     public function __toString() {      
182:         return strval(sprintf("%01.2f", $this->value));
183:     }
184: }
185:  
186: ?>