CRM/Core/Selector/Controller.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.6                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2014                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26 */
  27
  28 /**
  29  *
  30  * This class is a generic class to be used when we want to display
  31  * a list of rows along with a set of associated actions
  32  *
  33  * Centralizing this code enables us to write a generic lister and enables
  34  * us to automate the export process. To use this class, the object has to
  35  * implement the Selector/Api.interface.php class
  36  *
  37  * @package CRM
  38  * @copyright CiviCRM LLC (c) 2004-2014
  39  * $Id$
  40  *
  41  */
  42 class CRM_Core_Selector_Controller {
  43
  44   /**
  45    * Constants to determine if we should store
  46    * the output in the session or template
  47    * @var int
  48    */
  49   // move the values from the session to the template
  50   const SESSION = 1, TEMPLATE = 2,
  51   TRANSFER = 4, EXPORT = 8, SCREEN = 16, PDF = 32;
  52
  53   /**
  54    * A CRM Object that implements CRM_Core_Selector_API
  55    * @var object
  56    */
  57   protected $_object;
  58
  59   /**
  60    * @var CRM_Utils_Sort
  61    */
  62   protected $_sort;
  63
  64   /**
  65    * The current column to sort on
  66    * @var int
  67    */
  68   protected $_sortID;
  69
  70   /**
  71    * The sortOrder array
  72    * @var array
  73    */
  74   protected $_sortOrder;
  75
  76   /**
  77    * @var CRM_Utils_Pager
  78    */
  79   protected $_pager;
  80
  81   /**
  82    * The pageID
  83    * @var int
  84    */
  85   protected $_pageID;
  86
  87   /**
  88    * Offset
  89    * @var int
  90    */
  91   protected $_pagerOffset;
  92
  93   /**
  94    * Number of rows to return
  95    * @var int
  96    */
  97   protected $_pagerRowCount;
  98
  99   /**
 100    * Total number of rows
 101    * @var int
 102    */
 103   protected $_total;
 104
 105   /**
 106    * The objectAction for the WebObject
 107    */
 108   protected $_action;
 109
 110   /**
 111    * This caches the content for the display system
 112    *
 113    * @var string
 114    */
 115   protected $_content;
 116
 117   /**
 118    * Is this object being embedded in another object. If
 119    * so the display routine needs to not do any work. (The
 120    * parent object takes care of the display)
 121    *
 122    * @var boolean
 123    */
 124   protected $_embedded = FALSE;
 125
 126   /**
 127    * Are we in print mode? if so we need to modify the display
 128    * functionality to do a minimal display :)
 129    *
 130    * @var boolean
 131    */
 132   protected $_print = FALSE;
 133
 134   /**
 135    * The storage object (typically a form or a page)
 136    *
 137    * @var Object
 138    */
 139   protected $_store;
 140
 141   /**
 142    * Output target, session, template or both?
 143    *
 144    * @var int
 145    */
 146   protected $_output;
 147
 148   /**
 149    * Prefif for the selector variables
 150    *
 151    * @var int
 152    */
 153   protected $_prefix;
 154
 155   /**
 156    * Cache the smarty template for efficiency reasons
 157    *
 158    * @var CRM_Core_Smarty
 159    */
 160   public static $_template;
 161
 162   /**
 163    * Array of properties that the controller dumps into the output object
 164    *
 165    * @var array
 166    * @static
 167    */
 168   public static $_properties = array('columnHeaders', 'rows', 'rowsEmpty');
 169
 170   /**
 171    * Should we compute actions dynamically (since they are quite verbose)
 172    *
 173    * @var boolean
 174    */
 175   protected $_dynamicAction = FALSE;
 176
 177   /**
 178    * Class constructor
 179    *
 180    * @param CRM_Core_Selector_API $object an object that implements the selector API
 181    * @param int $pageID default pageID
 182    * @param int $sortID default sortID
 183    * @param int $action the actions to potentially support
 184    * @param CRM_Core_Page|CRM_Core_Form $store place in session to store some values
 185    * @param int $output what do we so with the output, session/template//both
 186    *
 187    * @param null $prefix
 188    * @param null $case
 189    *
 190    * @return \CRM_Core_Selector_Controller
 191   @access public
 192    */
 193   public function __construct($object, $pageID, $sortID, $action, $store = NULL, $output = self::TEMPLATE, $prefix = NULL, $case = NULL) {
 194
 195     $this->_object = $object;
 196     $this->_pageID = $pageID ? $pageID : 1;
 197     $this->_sortID = $sortID ? $sortID : NULL;
 198     $this->_action = $action;
 199     $this->_store  = $store;
 200     $this->_output = $output;
 201     $this->_prefix = $prefix;
 202     $this->_case   = $case;
 203
 204     // fix sortID
 205     if ($this->_sortID && strpos($this->_sortID, '_') === FALSE) {
 206       $this->_sortID .= '_u';
 207     }
 208
 209     $params = array(
 210       'pageID' => $this->_pageID,
 211     );
 212
 213     // let the constructor initialize this, should happen only once
 214     if (!isset(self::$_template)) {
 215       self::$_template = CRM_Core_Smarty::singleton();
 216     }
 217
 218     $this->_sortOrder = &$this->_object->getSortOrder($action);
 219     $this->_sort = new CRM_Utils_Sort($this->_sortOrder, $this->_sortID);
 220
 221     /*
 222      * if we are in transfer mode, do not goto database, use the
 223      * session values instead
 224      */
 225
 226     if ($output == self::TRANSFER) {
 227       $params['total'] = $this->_store->get($this->_prefix . 'rowCount');
 228     }
 229     else {
 230       $params['total'] = $this->_object->getTotalCount($action, $this->_case);
 231     }
 232
 233     $this->_total = $params['total'];
 234     $this->_object->getPagerParams($action, $params);
 235
 236     /*
 237      * Set the default values of RowsPerPage
 238      */
 239
 240     $storeRowCount = $store->get($this->_prefix . CRM_Utils_Pager::PAGE_ROWCOUNT);
 241     if ($storeRowCount) {
 242       $params['rowCount'] = $storeRowCount;
 243     }
 244     elseif (!isset($params['rowCount'])) {
 245       $params['rowCount'] = CRM_Utils_Pager::ROWCOUNT;
 246     }
 247
 248     $this->_pager = new CRM_Utils_Pager($params);
 249     list($this->_pagerOffset, $this->_pagerRowCount) = $this->_pager->getOffsetAndRowCount();
 250   }
 251
 252   /**
 253    * Have the GET vars changed, i.e. pageId or sortId that forces us to recompute the search values
 254    *
 255    * @param int $reset are we being reset
 256    *
 257    * @return boolean   if the GET params are different from the session params
 258    */
 259   public function hasChanged($reset) {
 260
 261     /**
 262      * if we are in reset state, i.e the store is cleaned out, we return false
 263      * we also return if we dont have a record of the sort id or page id
 264      */
 265     if ($reset ||
 266       $this->_store->get($this->_prefix . CRM_Utils_Pager::PAGE_ID) == NULL ||
 267       $this->_store->get($this->_prefix . CRM_Utils_Sort::SORT_ID) == NULL
 268     ) {
 269       return FALSE;
 270     }
 271
 272     if ($this->_store->get($this->_prefix . CRM_Utils_Pager::PAGE_ID) != $this->_pager->getCurrentPageID() ||
 273       $this->_store->get($this->_prefix . CRM_Utils_Sort::SORT_ID) != $this->_sort->getCurrentSortID() ||
 274       $this->_store->get($this->_prefix . CRM_Utils_Sort::SORT_DIRECTION) != $this->_sort->getCurrentSortDirection()
 275     ) {
 276       return TRUE;
 277     }
 278     return FALSE;
 279   }
 280
 281   /**
 282    * Heart of the Controller. This is where all the action takes place
 283    *
 284    *   - The rows are fetched and stored depending on the type of output needed
 285    *
 286    *   - For export/printing all rows are selected.
 287    *
 288    *   - for displaying on screen paging parameters are used to display the
 289    *     required rows.
 290    *
 291    *   - also depending on output type of session or template rows are appropriately stored in session
 292    *     or template variables are updated.
 293    *
 294    *
 295    * @return void
 296    *
 297    */
 298   public function run() {
 299
 300     // get the column headers
 301     $columnHeaders = &$this->_object->getColumnHeaders($this->_action, $this->_output);
 302
 303     $contextArray = explode('_', get_class($this->_object));
 304
 305     $contextName = strtolower($contextArray[1]);
 306
 307     // fix contribute and member
 308     if ($contextName == 'contribute') {
 309       $contextName = 'contribution';
 310     }
 311     elseif ($contextName == 'member') {
 312       $contextName = 'membership';
 313     }
 314
 315     // we need to get the rows if we are exporting or printing them
 316     if ($this->_output == self::EXPORT || $this->_output == self::SCREEN) {
 317       // get rows (without paging criteria)
 318       $rows = self::getRows($this);
 319       CRM_Utils_Hook::searchColumns($contextName, $columnHeaders, $rows, $this);
 320       if ($this->_output == self::EXPORT) {
 321         // export the rows.
 322         CRM_Core_Report_Excel::writeCSVFile($this->_object->getExportFileName(),
 323           $columnHeaders,
 324           $rows
 325         );
 326         CRM_Utils_System::civiExit();
 327       }
 328       else {
 329         // assign to template and display them.
 330         self::$_template->assign_by_ref('rows', $rows);
 331         self::$_template->assign_by_ref('columnHeaders', $columnHeaders);
 332       }
 333     }
 334     else {
 335       // output requires paging/sorting capability
 336       $rows = self::getRows($this);
 337       CRM_Utils_Hook::searchColumns($contextName, $columnHeaders, $rows, $this);
 338       $rowsEmpty = count($rows) ? FALSE : TRUE;
 339       $qill      = $this->getQill();
 340       $summary   = $this->getSummary();
 341       // if we need to store in session, lets update session
 342       if ($this->_output & self::SESSION) {
 343         $this->_store->set("{$this->_prefix}columnHeaders", $columnHeaders);
 344         if ($this->_dynamicAction) {
 345           $this->_object->removeActions($rows);
 346         }
 347         $this->_store->set("{$this->_prefix}rows", $rows);
 348         $this->_store->set("{$this->_prefix}rowCount", $this->_total);
 349         $this->_store->set("{$this->_prefix}rowsEmpty", $rowsEmpty);
 350         $this->_store->set("{$this->_prefix}qill", $qill);
 351         $this->_store->set("{$this->_prefix}summary", $summary);
 352       }
 353       else {
 354         self::$_template->assign_by_ref("{$this->_prefix}pager", $this->_pager);
 355         self::$_template->assign_by_ref("{$this->_prefix}sort", $this->_sort);
 356
 357         self::$_template->assign_by_ref("{$this->_prefix}columnHeaders", $columnHeaders);
 358         self::$_template->assign_by_ref("{$this->_prefix}rows", $rows);
 359         self::$_template->assign("{$this->_prefix}rowsEmpty", $rowsEmpty);
 360         self::$_template->assign("{$this->_prefix}qill", $qill);
 361         self::$_template->assign("{$this->_prefix}summary", $summary);
 362       }
 363
 364
 365       // always store the current pageID and sortID
 366       $this->_store->set($this->_prefix . CRM_Utils_Pager::PAGE_ID,
 367         $this->_pager->getCurrentPageID()
 368       );
 369       $this->_store->set($this->_prefix . CRM_Utils_Sort::SORT_ID,
 370         $this->_sort->getCurrentSortID()
 371       );
 372       $this->_store->set($this->_prefix . CRM_Utils_Sort::SORT_DIRECTION,
 373         $this->_sort->getCurrentSortDirection()
 374       );
 375       $this->_store->set($this->_prefix . CRM_Utils_Sort::SORT_ORDER,
 376         $this->_sort->orderBy()
 377       );
 378       $this->_store->set($this->_prefix . CRM_Utils_Pager::PAGE_ROWCOUNT,
 379         $this->_pager->_perPage
 380       );
 381     }
 382   }
 383
 384   /**
 385    * Retrieve rows.
 386    *
 387    * @param CRM_Core_Form $form
 388    *
 389    * @return array of rows
 390    */
 391   public function getRows($form) {
 392     if ($form->_output == self::EXPORT || $form->_output == self::SCREEN) {
 393       //get rows (without paging criteria)
 394       return $form->_object->getRows($form->_action, 0, 0, $form->_sort, $form->_output);
 395     }
 396     else {
 397       return $form->_object->getRows($form->_action, $form->_pagerOffset, $form->_pagerRowCount,
 398         $form->_sort, $form->_output, $form->_case
 399       );
 400     }
 401   }
 402
 403   /**
 404    * Default function for qill, if needed to be implemented, we
 405    * expect the subclass to do it
 406    *
 407    * @return string the status message
 408    */
 409   public function getQill() {
 410     return $this->_object->getQill();
 411   }
 412
 413   /**
 414    * @return mixed
 415    */
 416   public function getSummary() {
 417     return $this->_object->getSummary();
 418   }
 419
 420   /**
 421    * Getter for pager
 422    *
 423    * @return CRM_Utils_Pager
 424    */
 425   public function getPager() {
 426     return $this->_pager;
 427   }
 428
 429   /**
 430    * Getter for sort
 431    *
 432    * @return CRM_Utils_Sort
 433    */
 434   public function getSort() {
 435     return $this->_sort;
 436   }
 437
 438   /**
 439    * Move the variables from the session to the template
 440    *
 441    * @return void
 442    */
 443   public function moveFromSessionToTemplate() {
 444     self::$_template->assign_by_ref("{$this->_prefix}pager", $this->_pager);
 445
 446     $rows = $this->_store->get("{$this->_prefix}rows");
 447
 448     if ($rows) {
 449       if ($this->_dynamicAction) {
 450         $this->_object->addActions($rows);
 451       }
 452
 453       self::$_template->assign("{$this->_prefix}aToZ",
 454         $this->_store->get("{$this->_prefix}AToZBar")
 455       );
 456     }
 457
 458     self::$_template->assign_by_ref("{$this->_prefix}sort", $this->_sort);
 459     self::$_template->assign("{$this->_prefix}columnHeaders", $this->_store->get("{$this->_prefix}columnHeaders"));
 460     self::$_template->assign("{$this->_prefix}rows", $rows);
 461     self::$_template->assign("{$this->_prefix}rowsEmpty", $this->_store->get("{$this->_prefix}rowsEmpty"));
 462     self::$_template->assign("{$this->_prefix}qill", $this->_store->get("{$this->_prefix}qill"));
 463     self::$_template->assign("{$this->_prefix}summary", $this->_store->get("{$this->_prefix}summary"));
 464
 465     if ($this->_embedded) {
 466       return;
 467     }
 468
 469     self::$_template->assign('tplFile', $this->_object->getHookedTemplateFileName());
 470     if ($this->_print) {
 471       $content = self::$_template->fetch('CRM/common/print.tpl');
 472     }
 473     else {
 474       $config = CRM_Core_Config::singleton();
 475       $content = self::$_template->fetch('CRM/common/' . strtolower($config->userFramework) . '.tpl');
 476     }
 477     echo CRM_Utils_System::theme($content, $this->_print);
 478   }
 479
 480   /**
 481    * Setter for embedded
 482    *
 483    * @param boolean $embedded
 484    *
 485    * @return void
 486    */
 487   public function setEmbedded($embedded) {
 488     $this->_embedded = $embedded;
 489   }
 490
 491   /**
 492    * Getter for embedded
 493    *
 494    * @return boolean return the embedded value
 495    */
 496   public function getEmbedded() {
 497     return $this->_embedded;
 498   }
 499
 500   /**
 501    * Setter for print
 502    *
 503    * @param boolean $print
 504    *
 505    * @return void
 506    */
 507   public function setPrint($print) {
 508     $this->_print = $print;
 509   }
 510
 511   /**
 512    * Getter for print
 513    *
 514    * @return boolean return the print value
 515    */
 516   public function getPrint() {
 517     return $this->_print;
 518   }
 519
 520   /**
 521    * @param $value
 522    */
 523   public function setDynamicAction($value) {
 524     $this->_dynamicAction = $value;
 525   }
 526
 527   /**
 528    * @return bool
 529    */
 530   public function getDynamicAction() {
 531     return $this->_dynamicAction;
 532   }
 533 }