CRM/Report/Form/Mailing/Summary.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.7                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2016                                |
   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  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2016
  32  * $Id$
  33  *
  34  */
  35 class CRM_Report_Form_Mailing_Summary extends CRM_Report_Form {
  36
  37   protected $_summary = NULL;
  38
  39   protected $_customGroupExtends = array();
  40
  41   protected $_add2groupSupported = FALSE;
  42
  43   public $_drilldownReport = array('mailing/detail' => 'Link to Detail Report');
  44
  45   protected $_charts = array(
  46     '' => 'Tabular',
  47     'bar_3dChart' => 'Bar Chart',
  48   );
  49
  50   public $campaignEnabled = FALSE;
  51
  52   /**
  53    */
  54   /**
  55    */
  56   public function __construct() {
  57     $this->_columns = array();
  58
  59     $this->_columns['civicrm_mailing'] = array(
  60       'dao' => 'CRM_Mailing_DAO_Mailing',
  61       'fields' => array(
  62         'id' => array(
  63           'name' => 'id',
  64           'title' => ts('Mailing ID'),
  65           'required' => TRUE,
  66           'no_display' => TRUE,
  67         ),
  68         'name' => array(
  69           'title' => ts('Mailing Name'),
  70           'required' => TRUE,
  71         ),
  72         'created_date' => array(
  73           'title' => ts('Date Created'),
  74         ),
  75         'subject' => array(
  76           'title' => ts('Subject'),
  77         ),
  78       ),
  79       'filters' => array(
  80         'is_completed' => array(
  81           'title' => ts('Mailing Status'),
  82           'operatorType' => CRM_Report_Form::OP_SELECT,
  83           'type' => CRM_Utils_Type::T_INT,
  84           'options' => array(
  85             0 => 'Incomplete',
  86             1 => 'Complete',
  87           ),
  88           //'operator' => 'like',
  89           'default' => 1,
  90         ),
  91         'mailing_name' => array(
  92           'name' => 'name',
  93           'title' => ts('Mailing'),
  94           'operatorType' => CRM_Report_Form::OP_MULTISELECT,
  95           'type' => CRM_Utils_Type::T_STRING,
  96           'options' => self::mailing_select(),
  97           'operator' => 'like',
  98         ),
  99       ),
 100     );
 101
 102     $this->_columns['civicrm_mailing_job'] = array(
 103       'dao' => 'CRM_Mailing_DAO_MailingJob',
 104       'fields' => array(
 105         'start_date' => array(
 106           'title' => ts('Start Date'),
 107         ),
 108         'end_date' => array(
 109           'title' => ts('End Date'),
 110         ),
 111       ),
 112       'filters' => array(
 113         'status' => array(
 114           'type' => CRM_Utils_Type::T_STRING,
 115           'default' => 'Complete',
 116           'no_display' => TRUE,
 117         ),
 118         'is_test' => array(
 119           'type' => CRM_Utils_Type::T_INT,
 120           'default' => 0,
 121           'no_display' => TRUE,
 122         ),
 123         'start_date' => array(
 124           'title' => ts('Start Date'),
 125           'default' => 'this.year',
 126           'operatorType' => CRM_Report_Form::OP_DATE,
 127           'type' => CRM_Utils_Type::T_DATE,
 128         ),
 129         'end_date' => array(
 130           'title' => ts('End Date'),
 131           'default' => 'this.year',
 132           'operatorType' => CRM_Report_Form::OP_DATE,
 133           'type' => CRM_Utils_Type::T_DATE,
 134         ),
 135       ),
 136     );
 137
 138     $this->_columns['civicrm_mailing_event_queue'] = array(
 139       'dao' => 'CRM_Mailing_DAO_Mailing',
 140       'fields' => array(
 141         'queue_count' => array(
 142           'name' => 'id',
 143           'title' => ts('Intended Recipients'),
 144         ),
 145       ),
 146     );
 147
 148     $this->_columns['civicrm_mailing_event_delivered'] = array(
 149       'dao' => 'CRM_Mailing_DAO_Mailing',
 150       'fields' => array(
 151         'delivered_count' => array(
 152           'name' => 'event_queue_id',
 153           'title' => ts('Delivered'),
 154         ),
 155         'accepted_rate' => array(
 156           'title' => 'Accepted Rate',
 157           'statistics' => array(
 158             'calc' => 'PERCENTAGE',
 159             'top' => 'civicrm_mailing_event_delivered.delivered_count',
 160             'base' => 'civicrm_mailing_event_queue.queue_count',
 161           ),
 162         ),
 163       ),
 164     );
 165
 166     $this->_columns['civicrm_mailing_event_bounce'] = array(
 167       'dao' => 'CRM_Mailing_DAO_Mailing',
 168       'fields' => array(
 169         'bounce_count' => array(
 170           'name' => 'event_queue_id',
 171           'title' => ts('Bounce'),
 172         ),
 173         'bounce_rate' => array(
 174           'title' => 'Bounce Rate',
 175           'statistics' => array(
 176             'calc' => 'PERCENTAGE',
 177             'top' => 'civicrm_mailing_event_bounce.bounce_count',
 178             'base' => 'civicrm_mailing_event_queue.queue_count',
 179           ),
 180         ),
 181       ),
 182     );
 183
 184     $this->_columns['civicrm_mailing_event_opened'] = array(
 185       'dao' => 'CRM_Mailing_DAO_Mailing',
 186       'fields' => array(
 187         'unique_open_count' => array(
 188           'name' => 'id',
 189           'alias' => 'mailing_event_opened_civireport',
 190           'dbAlias' => 'mailing_event_opened_civireport.event_queue_id',
 191           'title' => ts('Unique Opens'),
 192         ),
 193         'unique_open_rate' => array(
 194           'title' => 'Unique Open Rate',
 195           'statistics' => array(
 196             'calc' => 'PERCENTAGE',
 197             'top' => 'civicrm_mailing_event_opened.unique_open_count',
 198             'base' => 'civicrm_mailing_event_delivered.delivered_count',
 199           ),
 200         ),
 201         'open_count' => array(
 202           'name' => 'event_queue_id',
 203           'title' => ts('Total Opens'),
 204         ),
 205         'open_rate' => array(
 206           'title' => 'Total Open Rate',
 207           'statistics' => array(
 208             'calc' => 'PERCENTAGE',
 209             'top' => 'civicrm_mailing_event_opened.open_count',
 210             'base' => 'civicrm_mailing_event_delivered.delivered_count',
 211           ),
 212         ),
 213       ),
 214     );
 215
 216     $this->_columns['civicrm_mailing_event_trackable_url_open'] = array(
 217       'dao' => 'CRM_Mailing_DAO_Mailing',
 218       'fields' => array(
 219         'click_count' => array(
 220           'name' => 'event_queue_id',
 221           'title' => ts('Clicks'),
 222         ),
 223         'CTR' => array(
 224           'title' => 'Click through Rate',
 225           'default' => 0,
 226           'statistics' => array(
 227             'calc' => 'PERCENTAGE',
 228             'top' => 'civicrm_mailing_event_trackable_url_open.click_count',
 229             'base' => 'civicrm_mailing_event_delivered.delivered_count',
 230           ),
 231         ),
 232         'CTO' => array(
 233           'title' => 'Click to Open Rate',
 234           'default' => 0,
 235           'statistics' => array(
 236             'calc' => 'PERCENTAGE',
 237             'top' => 'civicrm_mailing_event_trackable_url_open.click_count',
 238             'base' => 'civicrm_mailing_event_opened.open_count',
 239           ),
 240         ),
 241       ),
 242     );
 243
 244     $this->_columns['civicrm_mailing_event_unsubscribe'] = array(
 245       'dao' => 'CRM_Mailing_DAO_Mailing',
 246       'fields' => array(
 247         'unsubscribe_count' => array(
 248           'name' => 'id',
 249           'title' => ts('Unsubscribe'),
 250           'alias' => 'mailing_event_unsubscribe_civireport',
 251           'dbAlias' => 'mailing_event_unsubscribe_civireport.event_queue_id',
 252         ),
 253         'optout_count' => array(
 254           'name' => 'id',
 255           'title' => ts('Opt-outs'),
 256           'alias' => 'mailing_event_optout_civireport',
 257           'dbAlias' => 'mailing_event_optout_civireport.event_queue_id',
 258         ),
 259       ),
 260     );
 261     $this->_columns['civicrm_mailing_group'] = array(
 262       'dao' => 'CRM_Mailing_DAO_MailingGroup',
 263       'filters' => array(
 264         'entity_id' => array(
 265           'title' => ts('Groups Included in Mailing'),
 266           'operatorType' => CRM_Report_Form::OP_MULTISELECT,
 267           'type' => CRM_Utils_Type::T_INT,
 268           'options' => CRM_Core_PseudoConstant::group(),
 269         ),
 270       ),
 271     );
 272     $config = CRM_Core_Config::singleton();
 273     $this->campaignEnabled = in_array("CiviCampaign", $config->enableComponents);
 274     if ($this->campaignEnabled) {
 275       $this->_columns['civicrm_campaign'] = array(
 276         'dao' => 'CRM_Campaign_DAO_Campaign',
 277         'fields' => array(
 278           'title' => array(
 279             'title' => ts('Campaign Name'),
 280           ),
 281         ),
 282         'filters' => array(
 283           'title' => array(
 284             'type' => CRM_Utils_Type::T_STRING,
 285           ),
 286         ),
 287       );
 288     }
 289     parent::__construct();
 290   }
 291
 292   /**
 293    * @return array
 294    */
 295   public function mailing_select() {
 296
 297     $data = array();
 298
 299     $mailing = new CRM_Mailing_BAO_Mailing();
 300     $query = "SELECT name FROM civicrm_mailing WHERE sms_provider_id IS NULL";
 301     $mailing->query($query);
 302
 303     while ($mailing->fetch()) {
 304       $data[mysql_real_escape_string($mailing->name)] = $mailing->name;
 305     }
 306
 307     return $data;
 308   }
 309
 310   public function preProcess() {
 311     $this->assign('chartSupported', TRUE);
 312     parent::preProcess();
 313   }
 314
 315   /**
 316    * manipulate the select function to query count functions.
 317    */
 318   public function select() {
 319
 320     $count_tables = array(
 321       'civicrm_mailing_event_queue',
 322       'civicrm_mailing_event_delivered',
 323       'civicrm_mailing_event_opened',
 324       'civicrm_mailing_event_bounce',
 325       'civicrm_mailing_event_trackable_url_open',
 326       'civicrm_mailing_event_unsubscribe',
 327     );
 328
 329     $select = array();
 330     $this->_columnHeaders = array();
 331     foreach ($this->_columns as $tableName => $table) {
 332       if (array_key_exists('fields', $table)) {
 333         foreach ($table['fields'] as $fieldName => $field) {
 334           if (!empty($field['required']) || !empty($this->_params['fields'][$fieldName])) {
 335
 336             # for statistics
 337             if (!empty($field['statistics'])) {
 338               switch ($field['statistics']['calc']) {
 339                 case 'PERCENTAGE':
 340                   $base_table_column = explode('.', $field['statistics']['base']);
 341                   $top_table_column = explode('.', $field['statistics']['top']);
 342
 343                   $select[] = "CONCAT(round(
 344                     count(DISTINCT {$this->_columns[$top_table_column[0]]['fields'][$top_table_column[1]]['dbAlias']}) /
 345                     count(DISTINCT {$this->_columns[$base_table_column[0]]['fields'][$base_table_column[1]]['dbAlias']}) * 100, 2
 346                   ), '%') as {$tableName}_{$fieldName}";
 347                   break;
 348               }
 349             }
 350             else {
 351               if (in_array($tableName, $count_tables)) {
 352                 $select[] = "count(DISTINCT {$field['dbAlias']}) as {$tableName}_{$fieldName}";
 353               }
 354               else {
 355                 $select[] = "{$field['dbAlias']} as {$tableName}_{$fieldName}";
 356               }
 357             }
 358             $this->_columnHeaders["{$tableName}_{$fieldName}"]['type'] = CRM_Utils_Array::value('type', $field);
 359             $this->_columnHeaders["{$tableName}_{$fieldName}"]['title'] = $field['title'];
 360           }
 361         }
 362       }
 363     }
 364
 365     $this->_selectClauses = $select;
 366     $this->_select = "SELECT " . implode(', ', $select) . " ";
 367     //print_r($this->_select);
 368   }
 369
 370   public function from() {
 371
 372     $this->_from = "
 373     FROM civicrm_mailing {$this->_aliases['civicrm_mailing']}
 374       LEFT JOIN civicrm_mailing_job {$this->_aliases['civicrm_mailing_job']}
 375         ON {$this->_aliases['civicrm_mailing']}.id = {$this->_aliases['civicrm_mailing_job']}.mailing_id
 376       LEFT JOIN civicrm_mailing_event_queue {$this->_aliases['civicrm_mailing_event_queue']}
 377         ON {$this->_aliases['civicrm_mailing_event_queue']}.job_id = {$this->_aliases['civicrm_mailing_job']}.id
 378       LEFT JOIN civicrm_mailing_event_bounce {$this->_aliases['civicrm_mailing_event_bounce']}
 379         ON {$this->_aliases['civicrm_mailing_event_bounce']}.event_queue_id = {$this->_aliases['civicrm_mailing_event_queue']}.id
 380       LEFT JOIN civicrm_mailing_event_delivered {$this->_aliases['civicrm_mailing_event_delivered']}
 381         ON {$this->_aliases['civicrm_mailing_event_delivered']}.event_queue_id = {$this->_aliases['civicrm_mailing_event_queue']}.id
 382         AND {$this->_aliases['civicrm_mailing_event_bounce']}.id IS null
 383       LEFT JOIN civicrm_mailing_event_opened {$this->_aliases['civicrm_mailing_event_opened']}
 384         ON {$this->_aliases['civicrm_mailing_event_opened']}.event_queue_id = {$this->_aliases['civicrm_mailing_event_queue']}.id
 385       LEFT JOIN civicrm_mailing_event_trackable_url_open {$this->_aliases['civicrm_mailing_event_trackable_url_open']}
 386         ON {$this->_aliases['civicrm_mailing_event_trackable_url_open']}.event_queue_id = {$this->_aliases['civicrm_mailing_event_queue']}.id
 387       LEFT JOIN civicrm_mailing_event_unsubscribe {$this->_aliases['civicrm_mailing_event_unsubscribe']}
 388         ON {$this->_aliases['civicrm_mailing_event_unsubscribe']}.event_queue_id = {$this->_aliases['civicrm_mailing_event_queue']}.id AND {$this->_aliases['civicrm_mailing_event_unsubscribe']}.org_unsubscribe = 0
 389       LEFT JOIN civicrm_mailing_event_unsubscribe mailing_event_optout_civireport
 390         ON mailing_event_optout_civireport.event_queue_id = {$this->_aliases['civicrm_mailing_event_queue']}.id AND mailing_event_optout_civireport.org_unsubscribe = 1";
 391
 392     if ($this->isTableSelected('civicrm_mailing_group')) {
 393       $this->_from .= "
 394         LEFT JOIN civicrm_mailing_group {$this->_aliases['civicrm_mailing_group']}
 395     ON {$this->_aliases['civicrm_mailing_group']}.mailing_id = {$this->_aliases['civicrm_mailing']}.id";
 396     }
 397     if ($this->campaignEnabled) {
 398       $this->_from .= "
 399         LEFT JOIN civicrm_campaign {$this->_aliases['civicrm_campaign']}
 400         ON {$this->_aliases['civicrm_campaign']}.id = {$this->_aliases['civicrm_mailing']}.campaign_id";
 401     }
 402
 403     // need group by and order by
 404
 405     //print_r($this->_from);
 406   }
 407
 408   public function where() {
 409     $clauses = array();
 410     //to avoid the sms listings
 411     $clauses[] = "{$this->_aliases['civicrm_mailing']}.sms_provider_id IS NULL";
 412
 413     foreach ($this->_columns as $tableName => $table) {
 414       if (array_key_exists('filters', $table)) {
 415         foreach ($table['filters'] as $fieldName => $field) {
 416           $clause = NULL;
 417           if (CRM_Utils_Array::value('type', $field) & CRM_Utils_Type::T_DATE) {
 418             $relative = CRM_Utils_Array::value("{$fieldName}_relative", $this->_params);
 419             $from = CRM_Utils_Array::value("{$fieldName}_from", $this->_params);
 420             $to = CRM_Utils_Array::value("{$fieldName}_to", $this->_params);
 421
 422             $clause = $this->dateClause($this->_aliases[$tableName] . '.' . $field['name'], $relative, $from, $to, $field['type']);
 423           }
 424           else {
 425             $op = CRM_Utils_Array::value("{$fieldName}_op", $this->_params);
 426
 427             if ($op) {
 428               if ($fieldName == 'relationship_type_id') {
 429                 $clause = "{$this->_aliases['civicrm_relationship']}.relationship_type_id=" . $this->relationshipId;
 430               }
 431               else {
 432                 $clause = $this->whereClause($field,
 433                   $op,
 434                   CRM_Utils_Array::value("{$fieldName}_value", $this->_params),
 435                   CRM_Utils_Array::value("{$fieldName}_min", $this->_params),
 436                   CRM_Utils_Array::value("{$fieldName}_max", $this->_params)
 437                 );
 438               }
 439             }
 440           }
 441
 442           if (!empty($clause)) {
 443             $clauses[] = $clause;
 444           }
 445         }
 446       }
 447     }
 448
 449     if (empty($clauses)) {
 450       $this->_where = "WHERE ( 1 )";
 451     }
 452     else {
 453       $this->_where = "WHERE " . implode(' AND ', $clauses);
 454     }
 455
 456     // if ( $this->_aclWhere ) {
 457     // $this->_where .= " AND {$this->_aclWhere} ";
 458     // }
 459   }
 460
 461   public function groupBy() {
 462     $this->_groupBy = "GROUP BY {$this->_aliases['civicrm_mailing']}.id";
 463     $this->_groupBy .= CRM_Contact_BAO_Query::getGroupByFromSelectColumns($this->_selectClauses, "{$this->_aliases['civicrm_mailing']}.id");
 464   }
 465
 466   public function orderBy() {
 467     $this->_orderBy = " ORDER BY {$this->_aliases['civicrm_mailing_job']}.end_date DESC ";
 468   }
 469
 470   public function postProcess() {
 471
 472     $this->beginPostProcess();
 473
 474     // get the acl clauses built before we assemble the query
 475     $this->buildACLClause(CRM_Utils_Array::value('civicrm_contact', $this->_aliases));
 476
 477     $sql = $this->buildQuery(TRUE);
 478
 479     // print_r($sql);
 480
 481     $rows = $graphRows = array();
 482     $this->buildRows($sql, $rows);
 483
 484     $this->formatDisplay($rows);
 485     $this->doTemplateAssignment($rows);
 486     $this->endPostProcess($rows);
 487   }
 488
 489   /**
 490    * @return array
 491    */
 492   public static function getChartCriteria() {
 493     return array(
 494       'count' => array(
 495         'civicrm_mailing_event_delivered_delivered_count' => ts('Delivered'),
 496         'civicrm_mailing_event_bounce_bounce_count' => ts('Bounce'),
 497         'civicrm_mailing_event_opened_open_count' => ts('Total Opens'),
 498         'civicrm_mailing_event_opened_unique_open_count' => ts('Unique Opens'),
 499         'civicrm_mailing_event_trackable_url_open_click_count' => ts('Clicks'),
 500         'civicrm_mailing_event_unsubscribe_unsubscribe_count' => ts('Unsubscribe'),
 501       ),
 502       'rate' => array(
 503         'civicrm_mailing_event_delivered_accepted_rate' => ts('Accepted Rate'),
 504         'civicrm_mailing_event_bounce_bounce_rate' => ts('Bounce Rate'),
 505         'civicrm_mailing_event_opened_open_rate' => ts('Total Open Rate'),
 506         'civicrm_mailing_event_opened_unique_open_rate' => ts('Unique Open Rate'),
 507         'civicrm_mailing_event_trackable_url_open_CTR' => ts('Click through Rate'),
 508         'civicrm_mailing_event_trackable_url_open_CTO' => ts('Click to Open Rate'),
 509       ),
 510     );
 511   }
 512
 513   /**
 514    * @param $fields
 515    * @param $files
 516    * @param $self
 517    *
 518    * @return array
 519    */
 520   public static function formRule($fields, $files, $self) {
 521     $errors = array();
 522
 523     if (empty($fields['charts'])) {
 524       return $errors;
 525     }
 526
 527     $criteria = self::getChartCriteria();
 528     $isError = TRUE;
 529     foreach ($fields['fields'] as $fld => $isActive) {
 530       if (in_array($fld, array(
 531         'delivered_count',
 532         'bounce_count',
 533         'open_count',
 534         'click_count',
 535         'unsubscribe_count',
 536         'accepted_rate',
 537         'bounce_rate',
 538         'open_rate',
 539         'CTR',
 540         'CTO',
 541         'unique_open_rate',
 542         'unique_open_count',
 543       ))) {
 544         $isError = FALSE;
 545       }
 546     }
 547
 548     if ($isError) {
 549       $errors['_qf_default'] = ts('For Chart view, please select at least one field from %1 OR %2.', array(
 550           1 => implode(', ', $criteria['count']),
 551           2 => implode(', ', $criteria['rate']),
 552         ));
 553     }
 554
 555     return $errors;
 556   }
 557
 558   /**
 559    * @param $rows
 560    */
 561   public function buildChart(&$rows) {
 562     if (empty($rows)) {
 563       return;
 564     }
 565
 566     $criteria = self::getChartCriteria();
 567
 568     $chartInfo = array(
 569       'legend' => ts('Mail Summary'),
 570       'xname' => ts('Mailing'),
 571       'yname' => ts('Statistics'),
 572       'xLabelAngle' => 20,
 573       'tip' => array(),
 574     );
 575
 576     $plotRate = $plotCount = TRUE;
 577     foreach ($rows as $row) {
 578       $chartInfo['values'][$row['civicrm_mailing_name']] = array();
 579       if ($plotCount) {
 580         foreach ($criteria['count'] as $criteria => $label) {
 581           if (isset($row[$criteria])) {
 582             $chartInfo['values'][$row['civicrm_mailing_name']][$label] = $row[$criteria];
 583             $chartInfo['tip'][$label] = "{$label} #val#";
 584             $plotRate = FALSE;
 585           }
 586           elseif (isset($criteria['count'][$criteria])) {
 587             unset($criteria['count'][$criteria]);
 588           }
 589         }
 590       }
 591       if ($plotRate) {
 592         foreach ($criteria['rate'] as $criteria => $label) {
 593           if (isset($row[$criteria])) {
 594             $chartInfo['values'][$row['civicrm_mailing_name']][$label] = $row[$criteria];
 595             $chartInfo['tip'][$label] = "{$label} #val#";
 596             $plotCount = FALSE;
 597           }
 598           elseif (isset($criteria['rate'][$criteria])) {
 599             unset($criteria['rate'][$criteria]);
 600           }
 601         }
 602       }
 603     }
 604
 605     if ($plotCount) {
 606       $criteria = $criteria['count'];
 607     }
 608     else {
 609       $criteria = $criteria['rate'];
 610     }
 611
 612     $chartInfo['criteria'] = array_values($criteria);
 613
 614     // dynamically set the graph size
 615     $chartInfo['xSize'] = ((count($rows) * 125) + (count($rows) * count($criteria) * 40));
 616
 617     // build the chart.
 618     CRM_Utils_OpenFlashChart::buildChart($chartInfo, $this->_params['charts']);
 619     $this->assign('chartType', $this->_params['charts']);
 620   }
 621
 622   /**
 623    * Alter display of rows.
 624    *
 625    * Iterate through the rows retrieved via SQL and make changes for display purposes,
 626    * such as rendering contacts as links.
 627    *
 628    * @param array $rows
 629    *   Rows generated by SQL, with an array for each row.
 630    */
 631   public function alterDisplay(&$rows) {
 632     $entryFound = FALSE;
 633     foreach ($rows as $rowNum => $row) {
 634       // CRM-16506
 635       if (array_key_exists('civicrm_mailing_name', $row) &&
 636         array_key_exists('civicrm_mailing_id', $row)
 637       ) {
 638         $rows[$rowNum]['civicrm_mailing_name_link'] = CRM_Report_Utils_Report::getNextUrl('mailing/detail',
 639           'reset=1&force=1&mailing_id_op=eq&mailing_id_value=' . $row['civicrm_mailing_id'],
 640           $this->_absoluteUrl, $this->_id, $this->_drilldownReport
 641         );
 642         $rows[$rowNum]['civicrm_mailing_name_hover'] = ts('View Mailing details for this mailing');
 643         $entryFound = TRUE;
 644       }
 645       // skip looking further in rows, if first row itself doesn't
 646       // have the column we need
 647       if (!$entryFound) {
 648         break;
 649       }
 650     }
 651   }
 652
 653 }