| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Configurable.php 2753 2007-10-07 20:58:08Z zYne $ |
| 4 | * |
| 5 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 6 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 7 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 8 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 9 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 10 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 11 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 12 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 13 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 14 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 15 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 16 | * |
| 17 | * This software consists of voluntary contributions made by many individuals |
| 18 | * and is licensed under the LGPL. For more information, see |
| 19 | * <http://www.phpdoctrine.com>. |
| 20 | */ |
| 21 | /** |
| 22 | * Doctrine_Configurable |
| 23 | * the base for Doctrine_Table, Doctrine_Manager and Doctrine_Connection |
| 24 | * |
| 25 | * |
| 26 | * @package Doctrine |
| 27 | * @subpackage Configurable |
| 28 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 29 | * @link www.phpdoctrine.com |
| 30 | * @since 1.0 |
| 31 | * @version $Revision: 2753 $ |
| 32 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 33 | */ |
| 34 | abstract class Doctrine_Configurable extends Doctrine_Locator_Injectable |
| 35 | { |
| 36 | /** |
| 37 | * @var array $attributes an array of containing all attributes |
| 38 | */ |
| 39 | protected $attributes = array(); |
| 40 | /** |
| 41 | * @var Doctrine_Configurable $parent the parent of this component |
| 42 | */ |
| 43 | protected $parent; |
| 44 | /** |
| 45 | * @var array $_impl an array containing concrete implementations for class templates |
| 46 | * keys as template names and values as names of the concrete |
| 47 | * implementation classes |
| 48 | */ |
| 49 | protected $_impl = array(); |
| 50 | /** |
| 51 | * setAttribute |
| 52 | * sets a given attribute |
| 53 | * |
| 54 | * <code> |
| 55 | * $manager->setAttribute(Doctrine::ATTR_PORTABILITY, Doctrine::PORTABILITY_ALL); |
| 56 | * |
| 57 | * // or |
| 58 | * |
| 59 | * $manager->setAttribute('portability', Doctrine::PORTABILITY_ALL); |
| 60 | * </code> |
| 61 | * |
| 62 | * @param mixed $attribute either a Doctrine::ATTR_* integer constant or a string |
| 63 | * corresponding to a constant |
| 64 | * @param mixed $value the value of the attribute |
| 65 | * @see Doctrine::ATTR_* constants |
| 66 | * @throws Doctrine_Exception if the value is invalid |
| 67 | * @return void |
| 68 | */ |
| 69 | public function setAttribute($attribute,$value) |
| 70 | { |
| 71 | if (is_string($attribute)) { |
| 72 | $upper = strtoupper($attribute); |
| 73 | |
| 74 | $const = 'Doctrine::ATTR_' . $attribute; |
| 75 | if (defined($const)) { |
| 76 | $this->_state = constant($const); |
| 77 | } else { |
| 78 | throw new Doctrine_Exception('Unknown attribute ' . $attribute); |
| 79 | } |
| 80 | } |
| 81 | switch ($attribute) { |
| 82 | case Doctrine::ATTR_FETCHMODE: |
| 83 | throw new Doctrine_Exception('Deprecated attribute. See http://doctrine.pengus.net/doctrine/manual/new/?chapter=configuration'); |
| 84 | case Doctrine::ATTR_LISTENER: |
| 85 | $this->setEventListener($value); |
| 86 | break; |
| 87 | case Doctrine::ATTR_COLL_KEY: |
| 88 | if ( ! ($this instanceof Doctrine_Table)) { |
| 89 | throw new Doctrine_Exception("This attribute can only be set at table level."); |
| 90 | } |
| 91 | if ($value !== null && ! $this->hasColumn($value)) { |
| 92 | throw new Doctrine_Exception("Couldn't set collection key attribute. No such column '$value'"); |
| 93 | } |
| 94 | break; |
| 95 | case Doctrine::ATTR_CACHE: |
| 96 | if ($value !== null) { |
| 97 | if ( ! ($value instanceof Doctrine_Cache_Interface)) { |
| 98 | throw new Doctrine_Exception('Cache driver should implement Doctrine_Cache_Interface'); |
| 99 | } |
| 100 | } |
| 101 | break; |
| 102 | case Doctrine::ATTR_VALIDATE: |
| 103 | case Doctrine::ATTR_QUERY_LIMIT: |
| 104 | case Doctrine::ATTR_QUOTE_IDENTIFIER: |
| 105 | case Doctrine::ATTR_PORTABILITY: |
| 106 | case Doctrine::ATTR_DEFAULT_TABLE_TYPE: |
| 107 | case Doctrine::ATTR_EMULATE_DATABASE: |
| 108 | case Doctrine::ATTR_USE_NATIVE_ENUM: |
| 109 | case Doctrine::ATTR_DEFAULT_SEQUENCE: |
| 110 | case Doctrine::ATTR_EXPORT: |
| 111 | case Doctrine::ATTR_DECIMAL_PLACES: |
| 112 | case Doctrine::ATTR_LOAD_REFERENCES: |
| 113 | case Doctrine::ATTR_RECORD_LISTENER: |
| 114 | case Doctrine::ATTR_THROW_EXCEPTIONS: |
| 115 | |
| 116 | break; |
| 117 | case Doctrine::ATTR_SEQCOL_NAME: |
| 118 | if ( ! is_string($value)) { |
| 119 | throw new Doctrine_Exception('Sequence column name attribute only accepts string values'); |
| 120 | } |
| 121 | break; |
| 122 | case Doctrine::ATTR_FIELD_CASE: |
| 123 | if ($value != 0 && $value != CASE_LOWER && $value != CASE_UPPER) |
| 124 | throw new Doctrine_Exception('Field case attribute should be either 0, CASE_LOWER or CASE_UPPER constant.'); |
| 125 | break; |
| 126 | case Doctrine::ATTR_SEQNAME_FORMAT: |
| 127 | case Doctrine::ATTR_IDXNAME_FORMAT: |
| 128 | if ($this instanceof Doctrine_Table) { |
| 129 | throw new Doctrine_Exception('Sequence / index name format attributes cannot be set' |
| 130 | . 'at table level (only at connection or global level).'); |
| 131 | } |
| 132 | break; |
| 133 | default: |
| 134 | throw new Doctrine_Exception("Unknown attribute."); |
| 135 | } |
| 136 | |
| 137 | $this->attributes[$attribute] = $value; |
| 138 | |
| 139 | } |
| 140 | /** |
| 141 | * setImpl |
| 142 | * binds given class to given template name |
| 143 | * |
| 144 | * this method is the base of Doctrine dependency injection |
| 145 | * |
| 146 | * @param string $template name of the class template |
| 147 | * @param string $class name of the class to be bound |
| 148 | * @return Doctrine_Configurable this object |
| 149 | */ |
| 150 | public function setImpl($template, $class) |
| 151 | { |
| 152 | $this->_impl[$template] = $class; |
| 153 | |
| 154 | return $this; |
| 155 | } |
| 156 | /** |
| 157 | * getImpl |
| 158 | * returns the implementation for given class |
| 159 | * |
| 160 | * @return string name of the concrete implementation |
| 161 | */ |
| 162 | public function getImpl($template) |
| 163 | { |
| 164 | if ( ! isset($this->_impl[$template])) { |
| 165 | if (isset($this->parent)) { |
| 166 | return $this->parent->getImpl($template); |
| 167 | } |
| 168 | return null; |
| 169 | } |
| 170 | return $this->_impl[$template]; |
| 171 | } |
| 172 | /** |
| 173 | * getCacheDriver |
| 174 | * |
| 175 | * @return Doctrine_Cache_Interface |
| 176 | */ |
| 177 | public function getCacheDriver() |
| 178 | { |
| 179 | if ( ! isset($this->attributes[Doctrine::ATTR_CACHE])) { |
| 180 | throw new Doctrine_Exception('Cache driver not initialized.'); |
| 181 | } |
| 182 | |
| 183 | return $this->attributes[Doctrine::ATTR_CACHE]; |
| 184 | } |
| 185 | /** |
| 186 | * @param Doctrine_EventListener $listener |
| 187 | * @return void |
| 188 | */ |
| 189 | public function setEventListener($listener) |
| 190 | { |
| 191 | return $this->setListener($listener); |
| 192 | } |
| 193 | /** |
| 194 | * addRecordListener |
| 195 | * |
| 196 | * @param Doctrine_EventListener_Interface|Doctrine_Overloadable $listener |
| 197 | * @return mixed this object |
| 198 | */ |
| 199 | public function addRecordListener($listener, $name = null) |
| 200 | { |
| 201 | if ( ! isset($this->attributes[Doctrine::ATTR_RECORD_LISTENER]) || |
| 202 | ! ($this->attributes[Doctrine::ATTR_RECORD_LISTENER] instanceof Doctrine_Record_Listener_Chain)) { |
| 203 | |
| 204 | $this->attributes[Doctrine::ATTR_RECORD_LISTENER] = new Doctrine_Record_Listener_Chain(); |
| 205 | } |
| 206 | $this->attributes[Doctrine::ATTR_RECORD_LISTENER]->add($listener, $name); |
| 207 | |
| 208 | return $this; |
| 209 | } |
| 210 | /** |
| 211 | * getListener |
| 212 | * |
| 213 | * @return Doctrine_EventListener_Interface|Doctrine_Overloadable |
| 214 | */ |
| 215 | public function getRecordListener() |
| 216 | { |
| 217 | if ( ! isset($this->attributes[Doctrine::ATTR_RECORD_LISTENER])) { |
| 218 | if (isset($this->parent)) { |
| 219 | return $this->parent->getRecordListener(); |
| 220 | } |
| 221 | return null; |
| 222 | } |
| 223 | return $this->attributes[Doctrine::ATTR_RECORD_LISTENER]; |
| 224 | } |
| 225 | /** |
| 226 | * setListener |
| 227 | * |
| 228 | * @param Doctrine_EventListener_Interface|Doctrine_Overloadable $listener |
| 229 | * @return Doctrine_Configurable this object |
| 230 | */ |
| 231 | public function setRecordListener($listener) |
| 232 | { |
| 233 | if ( ! ($listener instanceof Doctrine_Record_Listener_Interface) |
| 234 | && ! ($listener instanceof Doctrine_Overloadable) |
| 235 | ) { |
| 236 | throw new Doctrine_Exception("Couldn't set eventlistener. Record listeners should implement either Doctrine_Record_Listener_Interface or Doctrine_Overloadable"); |
| 237 | } |
| 238 | $this->attributes[Doctrine::ATTR_RECORD_LISTENER] = $listener; |
| 239 | |
| 240 | return $this; |
| 241 | } |
| 242 | /** |
| 243 | * addListener |
| 244 | * |
| 245 | * @param Doctrine_EventListener_Interface|Doctrine_Overloadable $listener |
| 246 | * @return mixed this object |
| 247 | */ |
| 248 | public function addListener($listener, $name = null) |
| 249 | { |
| 250 | if ( ! isset($this->attributes[Doctrine::ATTR_LISTENER]) || |
| 251 | ! ($this->attributes[Doctrine::ATTR_LISTENER] instanceof Doctrine_EventListener_Chain)) { |
| 252 | |
| 253 | $this->attributes[Doctrine::ATTR_LISTENER] = new Doctrine_EventListener_Chain(); |
| 254 | } |
| 255 | $this->attributes[Doctrine::ATTR_LISTENER]->add($listener, $name); |
| 256 | |
| 257 | return $this; |
| 258 | } |
| 259 | /** |
| 260 | * getListener |
| 261 | * |
| 262 | * @return Doctrine_EventListener_Interface|Doctrine_Overloadable |
| 263 | */ |
| 264 | public function getListener() |
| 265 | { |
| 266 | if ( ! isset($this->attributes[Doctrine::ATTR_LISTENER])) { |
| 267 | if (isset($this->parent)) { |
| 268 | return $this->parent->getListener(); |
| 269 | } |
| 270 | return null; |
| 271 | } |
| 272 | return $this->attributes[Doctrine::ATTR_LISTENER]; |
| 273 | } |
| 274 | /** |
| 275 | * setListener |
| 276 | * |
| 277 | * @param Doctrine_EventListener_Interface|Doctrine_Overloadable $listener |
| 278 | * @return Doctrine_Configurable this object |
| 279 | */ |
| 280 | public function setListener($listener) |
| 281 | { |
| 282 | if ( ! ($listener instanceof Doctrine_EventListener_Interface) |
| 283 | && ! ($listener instanceof Doctrine_Overloadable) |
| 284 | ) { |
| 285 | throw new Doctrine_EventListener_Exception("Couldn't set eventlistener. EventListeners should implement either Doctrine_EventListener_Interface or Doctrine_Overloadable"); |
| 286 | } |
| 287 | $this->attributes[Doctrine::ATTR_LISTENER] = $listener; |
| 288 | |
| 289 | return $this; |
| 290 | } |
| 291 | /** |
| 292 | * returns the value of an attribute |
| 293 | * |
| 294 | * @param integer $attribute |
| 295 | * @return mixed |
| 296 | */ |
| 297 | public function getAttribute($attribute) |
| 298 | { |
| 299 | $attribute = (int) $attribute; |
| 300 | |
| 301 | if ($attribute < 0) { |
| 302 | throw new Doctrine_Exception('Unknown attribute.'); |
| 303 | } |
| 304 | |
| 305 | if ( ! isset($this->attributes[$attribute])) { |
| 306 | if (isset($this->parent)) { |
| 307 | return $this->parent->getAttribute($attribute); |
| 308 | } |
| 309 | return null; |
| 310 | } |
| 311 | return $this->attributes[$attribute]; |
| 312 | } |
| 313 | /** |
| 314 | * getAttributes |
| 315 | * returns all attributes as an array |
| 316 | * |
| 317 | * @return array |
| 318 | */ |
| 319 | public function getAttributes() |
| 320 | { |
| 321 | return $this->attributes; |
| 322 | } |
| 323 | /** |
| 324 | * sets a parent for this configurable component |
| 325 | * the parent must be configurable component itself |
| 326 | * |
| 327 | * @param Doctrine_Configurable $component |
| 328 | * @return void |
| 329 | */ |
| 330 | public function setParent(Doctrine_Configurable $component) |
| 331 | { |
| 332 | $this->parent = $component; |
| 333 | } |
| 334 | /** |
| 335 | * getParent |
| 336 | * returns the parent of this component |
| 337 | * |
| 338 | * @return Doctrine_Configurable |
| 339 | */ |
| 340 | public function getParent() |
| 341 | { |
| 342 | return $this->parent; |
| 343 | } |
| 344 | } |