pictcode / lib / Cake / Model / Behavior / ContainableBehavior.php @ 0b1b8047
履歴 | 表示 | アノテート | ダウンロード (14.132 KB)
| 1 | 635eef61 | spyder1211 | <?php
|
|---|---|---|---|
| 2 | /**
|
||
| 3 | * Behavior for binding management.
|
||
| 4 | *
|
||
| 5 | * Behavior to simplify manipulating a model's bindings when doing a find operation
|
||
| 6 | *
|
||
| 7 | * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||
| 8 | * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||
| 9 | *
|
||
| 10 | * Licensed under The MIT License
|
||
| 11 | * For full copyright and license information, please see the LICENSE.txt
|
||
| 12 | * Redistributions of files must retain the above copyright notice.
|
||
| 13 | *
|
||
| 14 | * @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||
| 15 | * @link http://cakephp.org CakePHP(tm) Project
|
||
| 16 | * @package Cake.Model.Behavior
|
||
| 17 | * @since CakePHP(tm) v 1.2.0.5669
|
||
| 18 | * @license http://www.opensource.org/licenses/mit-license.php MIT License
|
||
| 19 | */
|
||
| 20 | |||
| 21 | App::uses('ModelBehavior', 'Model'); |
||
| 22 | |||
| 23 | /**
|
||
| 24 | * Behavior to allow for dynamic and atomic manipulation of a Model's associations
|
||
| 25 | * used for a find call. Most useful for limiting the amount of associations and
|
||
| 26 | * data returned.
|
||
| 27 | *
|
||
| 28 | * @package Cake.Model.Behavior
|
||
| 29 | * @link http://book.cakephp.org/2.0/en/core-libraries/behaviors/containable.html
|
||
| 30 | */
|
||
| 31 | class ContainableBehavior extends ModelBehavior { |
||
| 32 | |||
| 33 | /**
|
||
| 34 | * Types of relationships available for models
|
||
| 35 | *
|
||
| 36 | * @var array
|
||
| 37 | */
|
||
| 38 | public $types = array('belongsTo', 'hasOne', 'hasMany', 'hasAndBelongsToMany'); |
||
| 39 | |||
| 40 | /**
|
||
| 41 | * Runtime configuration for this behavior
|
||
| 42 | *
|
||
| 43 | * @var array
|
||
| 44 | */
|
||
| 45 | public $runtime = array(); |
||
| 46 | |||
| 47 | /**
|
||
| 48 | * Initiate behavior for the model using specified settings.
|
||
| 49 | *
|
||
| 50 | * Available settings:
|
||
| 51 | *
|
||
| 52 | * - recursive: (boolean, optional) set to true to allow containable to automatically
|
||
| 53 | * determine the recursiveness level needed to fetch specified models,
|
||
| 54 | * and set the model recursiveness to this level. setting it to false
|
||
| 55 | * disables this feature. DEFAULTS TO: true
|
||
| 56 | * - notices: (boolean, optional) issues E_NOTICES for bindings referenced in a
|
||
| 57 | * containable call that are not valid. DEFAULTS TO: true
|
||
| 58 | * - autoFields: (boolean, optional) auto-add needed fields to fetch requested
|
||
| 59 | * bindings. DEFAULTS TO: true
|
||
| 60 | *
|
||
| 61 | * @param Model $Model Model using the behavior
|
||
| 62 | * @param array $settings Settings to override for model.
|
||
| 63 | * @return void
|
||
| 64 | */
|
||
| 65 | public function setup(Model $Model, $settings = array()) { |
||
| 66 | if (!isset($this->settings[$Model->alias])) { |
||
| 67 | $this->settings[$Model->alias] = array('recursive' => true, 'notices' => true, 'autoFields' => true); |
||
| 68 | } |
||
| 69 | $this->settings[$Model->alias] = array_merge($this->settings[$Model->alias], $settings); |
||
| 70 | } |
||
| 71 | |||
| 72 | /**
|
||
| 73 | * Runs before a find() operation. Used to allow 'contain' setting
|
||
| 74 | * as part of the find call, like this:
|
||
| 75 | *
|
||
| 76 | * `Model->find('all', array('contain' => array('Model1', 'Model2')));`
|
||
| 77 | *
|
||
| 78 | * ```
|
||
| 79 | * Model->find('all', array('contain' => array(
|
||
| 80 | * 'Model1' => array('Model11', 'Model12'),
|
||
| 81 | * 'Model2',
|
||
| 82 | * 'Model3' => array(
|
||
| 83 | * 'Model31' => 'Model311',
|
||
| 84 | * 'Model32',
|
||
| 85 | * 'Model33' => array('Model331', 'Model332')
|
||
| 86 | * )));
|
||
| 87 | * ```
|
||
| 88 | *
|
||
| 89 | * @param Model $Model Model using the behavior
|
||
| 90 | * @param array $query Query parameters as set by cake
|
||
| 91 | * @return array
|
||
| 92 | */
|
||
| 93 | public function beforeFind(Model $Model, $query) { |
||
| 94 | $reset = (isset($query['reset']) ? $query['reset'] : true); |
||
| 95 | $noContain = false; |
||
| 96 | $contain = array(); |
||
| 97 | |||
| 98 | if (isset($this->runtime[$Model->alias]['contain'])) { |
||
| 99 | $noContain = empty($this->runtime[$Model->alias]['contain']); |
||
| 100 | $contain = $this->runtime[$Model->alias]['contain']; |
||
| 101 | unset($this->runtime[$Model->alias]['contain']); |
||
| 102 | } |
||
| 103 | |||
| 104 | if (isset($query['contain'])) { |
||
| 105 | $noContain = $noContain || empty($query['contain']); |
||
| 106 | if ($query['contain'] !== false) { |
||
| 107 | $contain = array_merge($contain, (array)$query['contain']); |
||
| 108 | } |
||
| 109 | } |
||
| 110 | $noContain = $noContain && empty($contain); |
||
| 111 | |||
| 112 | if ($noContain || empty($contain)) { |
||
| 113 | if ($noContain) { |
||
| 114 | $query['recursive'] = -1; |
||
| 115 | } |
||
| 116 | return $query; |
||
| 117 | } |
||
| 118 | if ((isset($contain[0]) && is_bool($contain[0])) || is_bool(end($contain))) { |
||
| 119 | $reset = is_bool(end($contain)) |
||
| 120 | ? array_pop($contain) |
||
| 121 | : array_shift($contain); |
||
| 122 | } |
||
| 123 | $containments = $this->containments($Model, $contain); |
||
| 124 | $map = $this->containmentsMap($containments); |
||
| 125 | |||
| 126 | $mandatory = array(); |
||
| 127 | foreach ($containments['models'] as $model) { |
||
| 128 | $instance = $model['instance']; |
||
| 129 | $needed = $this->fieldDependencies($instance, $map, false); |
||
| 130 | if (!empty($needed)) { |
||
| 131 | $mandatory = array_merge($mandatory, $needed); |
||
| 132 | } |
||
| 133 | if ($contain) { |
||
| 134 | $backupBindings = array(); |
||
| 135 | foreach ($this->types as $relation) { |
||
| 136 | if (!empty($instance->__backAssociation[$relation])) { |
||
| 137 | $backupBindings[$relation] = $instance->__backAssociation[$relation]; |
||
| 138 | } else {
|
||
| 139 | $backupBindings[$relation] = $instance->{$relation}; |
||
| 140 | } |
||
| 141 | } |
||
| 142 | foreach ($this->types as $type) { |
||
| 143 | $unbind = array(); |
||
| 144 | foreach ($instance->{$type} as $assoc => $options) { |
||
| 145 | if (!isset($model['keep'][$assoc])) { |
||
| 146 | $unbind[] = $assoc; |
||
| 147 | } |
||
| 148 | } |
||
| 149 | if (!empty($unbind)) { |
||
| 150 | if (!$reset && empty($instance->__backOriginalAssociation)) { |
||
| 151 | $instance->__backOriginalAssociation = $backupBindings; |
||
| 152 | } |
||
| 153 | $instance->unbindModel(array($type => $unbind), $reset); |
||
| 154 | } |
||
| 155 | foreach ($instance->{$type} as $assoc => $options) { |
||
| 156 | if (isset($model['keep'][$assoc]) && !empty($model['keep'][$assoc])) { |
||
| 157 | if (isset($model['keep'][$assoc]['fields'])) { |
||
| 158 | $model['keep'][$assoc]['fields'] = $this->fieldDependencies($containments['models'][$assoc]['instance'], $map, $model['keep'][$assoc]['fields']); |
||
| 159 | } |
||
| 160 | if (!$reset && empty($instance->__backOriginalAssociation)) { |
||
| 161 | $instance->__backOriginalAssociation = $backupBindings; |
||
| 162 | } elseif ($reset) { |
||
| 163 | $instance->__backAssociation[$type] = $backupBindings[$type]; |
||
| 164 | } |
||
| 165 | $instance->{$type}[$assoc] = array_merge($instance->{$type}[$assoc], $model['keep'][$assoc]); |
||
| 166 | } |
||
| 167 | if (!$reset) { |
||
| 168 | $instance->__backInnerAssociation[] = $assoc; |
||
| 169 | } |
||
| 170 | } |
||
| 171 | } |
||
| 172 | } |
||
| 173 | } |
||
| 174 | |||
| 175 | if ($this->settings[$Model->alias]['recursive']) { |
||
| 176 | $query['recursive'] = (isset($query['recursive'])) ? max($query['recursive'], $containments['depth']) : $containments['depth']; |
||
| 177 | } |
||
| 178 | |||
| 179 | $autoFields = ($this->settings[$Model->alias]['autoFields'] |
||
| 180 | && !in_array($Model->findQueryType, array('list', 'count')) |
||
| 181 | && !empty($query['fields'])); |
||
| 182 | |||
| 183 | if (!$autoFields) { |
||
| 184 | return $query; |
||
| 185 | } |
||
| 186 | |||
| 187 | $query['fields'] = (array)$query['fields']; |
||
| 188 | foreach (array('hasOne', 'belongsTo') as $type) { |
||
| 189 | if (!empty($Model->{$type})) { |
||
| 190 | foreach ($Model->{$type} as $assoc => $data) { |
||
| 191 | if ($Model->useDbConfig === $Model->{$assoc}->useDbConfig && !empty($data['fields'])) { |
||
| 192 | foreach ((array)$data['fields'] as $field) { |
||
| 193 | $query['fields'][] = (strpos($field, '.') === false ? $assoc . '.' : '') . $field; |
||
| 194 | } |
||
| 195 | } |
||
| 196 | } |
||
| 197 | } |
||
| 198 | } |
||
| 199 | |||
| 200 | if (!empty($mandatory[$Model->alias])) { |
||
| 201 | foreach ($mandatory[$Model->alias] as $field) { |
||
| 202 | if ($field === '--primaryKey--') { |
||
| 203 | $field = $Model->primaryKey; |
||
| 204 | } elseif (preg_match('/^.+\.\-\-[^-]+\-\-$/', $field)) { |
||
| 205 | list($modelName, $field) = explode('.', $field); |
||
| 206 | if ($Model->useDbConfig === $Model->{$modelName}->useDbConfig) { |
||
| 207 | $field = $modelName . '.' . ( |
||
| 208 | ($field === '--primaryKey--') ? $Model->$modelName->primaryKey : $field |
||
| 209 | ); |
||
| 210 | } else {
|
||
| 211 | $field = null; |
||
| 212 | } |
||
| 213 | } |
||
| 214 | if ($field !== null) { |
||
| 215 | $query['fields'][] = $field; |
||
| 216 | } |
||
| 217 | } |
||
| 218 | } |
||
| 219 | $query['fields'] = array_unique($query['fields']); |
||
| 220 | return $query; |
||
| 221 | } |
||
| 222 | |||
| 223 | /**
|
||
| 224 | * Unbinds all relations from a model except the specified ones. Calling this function without
|
||
| 225 | * parameters unbinds all related models.
|
||
| 226 | *
|
||
| 227 | * @param Model $Model Model on which binding restriction is being applied
|
||
| 228 | * @return void
|
||
| 229 | * @link http://book.cakephp.org/2.0/en/core-libraries/behaviors/containable.html#using-containable
|
||
| 230 | */
|
||
| 231 | public function contain(Model $Model) { |
||
| 232 | $args = func_get_args(); |
||
| 233 | $contain = call_user_func_array('am', array_slice($args, 1)); |
||
| 234 | $this->runtime[$Model->alias]['contain'] = $contain; |
||
| 235 | } |
||
| 236 | |||
| 237 | /**
|
||
| 238 | * Permanently restore the original binding settings of given model, useful
|
||
| 239 | * for restoring the bindings after using 'reset' => false as part of the
|
||
| 240 | * contain call.
|
||
| 241 | *
|
||
| 242 | * @param Model $Model Model on which to reset bindings
|
||
| 243 | * @return void
|
||
| 244 | */
|
||
| 245 | public function resetBindings(Model $Model) { |
||
| 246 | if (!empty($Model->__backOriginalAssociation)) { |
||
| 247 | $Model->__backAssociation = $Model->__backOriginalAssociation; |
||
| 248 | unset($Model->__backOriginalAssociation); |
||
| 249 | } |
||
| 250 | $Model->resetAssociations();
|
||
| 251 | if (!empty($Model->__backInnerAssociation)) { |
||
| 252 | $assocs = $Model->__backInnerAssociation; |
||
| 253 | $Model->__backInnerAssociation = array(); |
||
| 254 | foreach ($assocs as $currentModel) { |
||
| 255 | $this->resetBindings($Model->$currentModel); |
||
| 256 | } |
||
| 257 | } |
||
| 258 | } |
||
| 259 | |||
| 260 | /**
|
||
| 261 | * Process containments for model.
|
||
| 262 | *
|
||
| 263 | * @param Model $Model Model on which binding restriction is being applied
|
||
| 264 | * @param array $contain Parameters to use for restricting this model
|
||
| 265 | * @param array $containments Current set of containments
|
||
| 266 | * @param bool $throwErrors Whether non-existent bindings show throw errors
|
||
| 267 | * @return array Containments
|
||
| 268 | */
|
||
| 269 | public function containments(Model $Model, $contain, $containments = array(), $throwErrors = null) { |
||
| 270 | $options = array('className', 'joinTable', 'with', 'foreignKey', 'associationForeignKey', 'conditions', 'fields', 'order', 'limit', 'offset', 'unique', 'finderQuery'); |
||
| 271 | $keep = array(); |
||
| 272 | if ($throwErrors === null) { |
||
| 273 | $throwErrors = (empty($this->settings[$Model->alias]) ? true : $this->settings[$Model->alias]['notices']); |
||
| 274 | } |
||
| 275 | foreach ((array)$contain as $name => $children) { |
||
| 276 | if (is_numeric($name)) { |
||
| 277 | $name = $children; |
||
| 278 | $children = array(); |
||
| 279 | } |
||
| 280 | if (preg_match('/(?<!\.)\(/', $name)) { |
||
| 281 | $name = str_replace('(', '.(', $name); |
||
| 282 | } |
||
| 283 | if (strpos($name, '.') !== false) { |
||
| 284 | $chain = explode('.', $name); |
||
| 285 | $name = array_shift($chain); |
||
| 286 | $children = array(implode('.', $chain) => $children); |
||
| 287 | } |
||
| 288 | |||
| 289 | $children = (array)$children; |
||
| 290 | foreach ($children as $key => $val) { |
||
| 291 | if (is_string($key) && is_string($val) && !in_array($key, $options, true)) { |
||
| 292 | $children[$key] = (array)$val; |
||
| 293 | } |
||
| 294 | } |
||
| 295 | |||
| 296 | $keys = array_keys($children); |
||
| 297 | if ($keys && isset($children[0])) { |
||
| 298 | $keys = array_merge(array_values($children), $keys); |
||
| 299 | } |
||
| 300 | |||
| 301 | foreach ($keys as $i => $key) { |
||
| 302 | if (is_array($key)) { |
||
| 303 | continue;
|
||
| 304 | } |
||
| 305 | $optionKey = in_array($key, $options, true); |
||
| 306 | if (!$optionKey && is_string($key) && preg_match('/^[a-z(]/', $key) && (!isset($Model->{$key}) || !is_object($Model->{$key}))) { |
||
| 307 | $option = 'fields'; |
||
| 308 | $val = array($key); |
||
| 309 | if ($key{0} === '(') { |
||
| 310 | $val = preg_split('/\s*,\s*/', substr($key, 1, -1)); |
||
| 311 | } elseif (preg_match('/ASC|DESC$/', $key)) { |
||
| 312 | $option = 'order'; |
||
| 313 | $val = $Model->{$name}->alias . '.' . $key; |
||
| 314 | } elseif (preg_match('/[ =!]/', $key)) { |
||
| 315 | $option = 'conditions'; |
||
| 316 | $val = $Model->{$name}->alias . '.' . $key; |
||
| 317 | } |
||
| 318 | $children[$option] = is_array($val) ? $val : array($val); |
||
| 319 | $newChildren = null; |
||
| 320 | if (!empty($name) && !empty($children[$key])) { |
||
| 321 | $newChildren = $children[$key]; |
||
| 322 | } |
||
| 323 | unset($children[$key], $children[$i]); |
||
| 324 | $key = $option; |
||
| 325 | $optionKey = true; |
||
| 326 | if (!empty($newChildren)) { |
||
| 327 | $children = Hash::merge($children, $newChildren); |
||
| 328 | } |
||
| 329 | } |
||
| 330 | if ($optionKey && isset($children[$key])) { |
||
| 331 | if (!empty($keep[$name][$key]) && is_array($keep[$name][$key])) { |
||
| 332 | $keep[$name][$key] = array_merge((isset($keep[$name][$key]) ? $keep[$name][$key] : array()), (array)$children[$key]); |
||
| 333 | } else {
|
||
| 334 | $keep[$name][$key] = $children[$key]; |
||
| 335 | } |
||
| 336 | unset($children[$key]); |
||
| 337 | } |
||
| 338 | } |
||
| 339 | |||
| 340 | if (!isset($Model->{$name}) || !is_object($Model->{$name})) { |
||
| 341 | if ($throwErrors) { |
||
| 342 | trigger_error(__d('cake_dev', 'Model "%s" is not associated with model "%s"', $Model->alias, $name), E_USER_WARNING); |
||
| 343 | } |
||
| 344 | continue;
|
||
| 345 | } |
||
| 346 | |||
| 347 | $containments = $this->containments($Model->{$name}, $children, $containments); |
||
| 348 | $depths[] = $containments['depth'] + 1; |
||
| 349 | if (!isset($keep[$name])) { |
||
| 350 | $keep[$name] = array(); |
||
| 351 | } |
||
| 352 | } |
||
| 353 | |||
| 354 | if (!isset($containments['models'][$Model->alias])) { |
||
| 355 | $containments['models'][$Model->alias] = array('keep' => array(), 'instance' => &$Model); |
||
| 356 | } |
||
| 357 | |||
| 358 | $containments['models'][$Model->alias]['keep'] = array_merge($containments['models'][$Model->alias]['keep'], $keep); |
||
| 359 | $containments['depth'] = empty($depths) ? 0 : max($depths); |
||
| 360 | return $containments; |
||
| 361 | } |
||
| 362 | |||
| 363 | /**
|
||
| 364 | * Calculate needed fields to fetch the required bindings for the given model.
|
||
| 365 | *
|
||
| 366 | * @param Model $Model Model
|
||
| 367 | * @param array $map Map of relations for given model
|
||
| 368 | * @param array|bool $fields If array, fields to initially load, if false use $Model as primary model
|
||
| 369 | * @return array Fields
|
||
| 370 | */
|
||
| 371 | public function fieldDependencies(Model $Model, $map, $fields = array()) { |
||
| 372 | if ($fields === false) { |
||
| 373 | foreach ($map as $parent => $children) { |
||
| 374 | foreach ($children as $type => $bindings) { |
||
| 375 | foreach ($bindings as $dependency) { |
||
| 376 | if ($type === 'hasAndBelongsToMany') { |
||
| 377 | $fields[$parent][] = '--primaryKey--'; |
||
| 378 | } elseif ($type === 'belongsTo') { |
||
| 379 | $fields[$parent][] = $dependency . '.--primaryKey--'; |
||
| 380 | } |
||
| 381 | } |
||
| 382 | } |
||
| 383 | } |
||
| 384 | return $fields; |
||
| 385 | } |
||
| 386 | if (empty($map[$Model->alias])) { |
||
| 387 | return $fields; |
||
| 388 | } |
||
| 389 | foreach ($map[$Model->alias] as $type => $bindings) { |
||
| 390 | foreach ($bindings as $dependency) { |
||
| 391 | $innerFields = array(); |
||
| 392 | switch ($type) { |
||
| 393 | case 'belongsTo': |
||
| 394 | $fields[] = $Model->{$type}[$dependency]['foreignKey']; |
||
| 395 | break;
|
||
| 396 | case 'hasOne': |
||
| 397 | case 'hasMany': |
||
| 398 | $innerFields[] = $Model->$dependency->primaryKey; |
||
| 399 | $fields[] = $Model->primaryKey; |
||
| 400 | break;
|
||
| 401 | } |
||
| 402 | if (!empty($innerFields) && !empty($Model->{$type}[$dependency]['fields'])) { |
||
| 403 | $Model->{$type}[$dependency]['fields'] = array_unique(array_merge($Model->{$type}[$dependency]['fields'], $innerFields)); |
||
| 404 | } |
||
| 405 | } |
||
| 406 | } |
||
| 407 | return array_unique($fields); |
||
| 408 | } |
||
| 409 | |||
| 410 | /**
|
||
| 411 | * Build the map of containments
|
||
| 412 | *
|
||
| 413 | * @param array $containments Containments
|
||
| 414 | * @return array Built containments
|
||
| 415 | */
|
||
| 416 | public function containmentsMap($containments) { |
||
| 417 | $map = array(); |
||
| 418 | foreach ($containments['models'] as $name => $model) { |
||
| 419 | $instance = $model['instance']; |
||
| 420 | foreach ($this->types as $type) { |
||
| 421 | foreach ($instance->{$type} as $assoc => $options) { |
||
| 422 | if (isset($model['keep'][$assoc])) { |
||
| 423 | $map[$name][$type] = isset($map[$name][$type]) ? array_merge($map[$name][$type], (array)$assoc) : (array)$assoc; |
||
| 424 | } |
||
| 425 | } |
||
| 426 | } |
||
| 427 | } |
||
| 428 | return $map; |
||
| 429 | } |
||
| 430 | |||
| 431 | } |