library/appointments.inc.php

   1 <?php
   2
   3  // Copyright (C) 2011 Ken Chapple
   4  //
   5  // This program is free software; you can redistribute it and/or
   6  // modify it under the terms of the GNU General Public License
   7  // as published by the Free Software Foundation; either version 2
   8  // of the License, or (at your option) any later version.
   9
  10  // Holds library functions (and hashes) used by the appointment reporting module
  11
  12
  13
  14 require_once(dirname(__FILE__)."/encounter_events.inc.php");
  15 require_once(dirname(__FILE__)."/../interface/main/calendar/modules/PostCalendar/pnincludes/Date/Calc.php");
  16
  17
  18 $COMPARE_FUNCTION_HASH = array(
  19     'doctor' => 'compareAppointmentsByDoctorName',
  20     'patient' => 'compareAppointmentsByPatientName',
  21     'pubpid' => 'compareAppointmentsByPatientId',
  22     'date' => 'compareAppointmentsByDate',
  23     'time' => 'compareAppointmentsByTime',
  24     'type' => 'compareAppointmentsByType',
  25     'comment' => 'compareAppointmentsByComment',
  26     'status' => 'compareAppointmentsByStatus',
  27     'completed' => 'compareAppointmentsByCompletedDrugScreen',
  28     'trackerstatus' => 'compareAppointmentsByTrackerStatus'
  29 );
  30
  31 $ORDERHASH = array(
  32         'doctor' => array( 'doctor', 'date', 'time' ),
  33         'patient' => array( 'patient', 'date', 'time' ),
  34         'pubpid' => array( 'pubpid', 'date', 'time' ),
  35         'date' => array( 'date', 'time', 'type', 'patient' ),
  36         'time' => array( 'time', 'date', 'patient' ),
  37         'type' => array( 'type', 'date', 'time', 'patient' ),
  38         'comment' => array( 'comment', 'date', 'time', 'patient' ),
  39     'status' => array( 'status', 'date', 'time', 'patient' ),
  40     'completed' => array( 'completed', 'date', 'time', 'patient' ),
  41     'trackerstatus' => array( 'trackerstatus', 'date', 'time', 'patient' ),
  42 );
  43
  44 /*Arrays for the interpretation of recurrence patterns.*/
  45 $REPEAT_FREQ = array(
  46         '1' => xl('Every'),
  47         '2' => xl('Every 2nd'),
  48         '3' => xl('Every 3rd'),
  49         '4' => xl('Every 4th'),
  50         '5' => xl('Every 5th'),
  51         '6' => xl('Every 6th')
  52 );
  53
  54 $REPEAT_FREQ_TYPE = array(
  55         '0' => xl('day'),
  56         '1' => xl('week'),
  57         '2' => xl('month'),
  58         '3' => xl('year'),
  59         '4' => xl('workday')
  60 );
  61
  62 $REPEAT_ON_NUM = array(
  63         '1' => xl('1st'),
  64         '2' => xl('2nd'),
  65         '3' => xl('3rd'),
  66         '4' => xl('4th'),
  67         '5' => xl('Last')
  68 );
  69
  70 $REPEAT_ON_DAY = array(
  71         '0' => xl('Sunday'),
  72         '1' => xl('Monday'),
  73         '2' => xl('Tuesday'),
  74         '3' => xl('Wednesday'),
  75         '4' => xl('Thursday'),
  76         '5' => xl('Friday'),
  77         '6' => xl('Saturday')
  78 );
  79
  80 function fetchEvents( $from_date, $to_date, $where_param = null, $orderby_param = null, $tracker_board = false, $nextX = 0, $bind_param = null, $query_param = null )
  81 {
  82
  83   $sqlBindArray = array();
  84
  85   if($query_param) {
  86
  87     $query = $query_param;
  88
  89     if($bind_param) $sqlBindArray = $bind_param;
  90
  91   } else {
  92     //////
  93     if($nextX) {
  94
  95       $where =
  96         "((e.pc_endDate >= ? AND e.pc_recurrtype > '0') OR " .
  97         "(e.pc_eventDate >= ?))";
  98
  99       array_push($sqlBindArray, $from_date, $from_date);
 100
 101     } else {
 102     //////
 103       $where =
 104         "((e.pc_endDate >= ? AND e.pc_eventDate <= ? AND e.pc_recurrtype > '0') OR " .
 105         "(e.pc_eventDate >= ? AND e.pc_eventDate <= ?))";
 106
 107       array_push($sqlBindArray, $from_date, $to_date, $from_date, $to_date);
 108
 109     }
 110
 111     if ( $where_param ) $where .= $where_param;
 112
 113     $order_by = "e.pc_eventDate, e.pc_startTime";
 114     if ( $orderby_param ) {
 115        $order_by = $orderby_param;
 116     }
 117
 118     // Tracker Board specific stuff
 119     $tracker_fields = '';
 120     $tracker_joins = '';
 121     if ($tracker_board) {
 122     $tracker_fields = "e.pc_room, e.pc_pid, t.id, t.date, t.apptdate, t.appttime, t.eid, t.pid, t.original_user, t.encounter, t.lastseq, t.random_drug_test, t.drug_screen_completed, " .
 123     "q.pt_tracker_id, q.start_datetime, q.room, q.status, q.seq, q.user, " .
 124     "s.toggle_setting_1, s.toggle_setting_2, s.option_id, ";
 125     $tracker_joins = "LEFT OUTER JOIN patient_tracker AS t ON t.pid = e.pc_pid AND t.apptdate = e.pc_eventDate AND t.appttime = e.pc_starttime AND t.eid = e.pc_eid " .
 126     "LEFT OUTER JOIN patient_tracker_element AS q ON q.pt_tracker_id = t.id AND q.seq = t.lastseq " .
 127     "LEFT OUTER JOIN list_options AS s ON s.list_id = 'apptstat' AND s.option_id = q.status AND s.activity = 1 " ;
 128     }
 129
 130     $query = "SELECT " .
 131     "e.pc_eventDate, e.pc_endDate, e.pc_startTime, e.pc_endTime, e.pc_duration, e.pc_recurrtype, e.pc_recurrspec, e.pc_recurrfreq, e.pc_catid, e.pc_eid, e.pc_gid, " .
 132     "e.pc_title, e.pc_hometext, e.pc_apptstatus, " .
 133     "p.fname, p.mname, p.lname, p.pid, p.pubpid, p.phone_home, p.phone_cell, " .
 134     "u.fname AS ufname, u.mname AS umname, u.lname AS ulname, u.id AS uprovider_id, " .
 135     "f.name, " .
 136     "$tracker_fields" .
 137     "c.pc_catname, c.pc_catid " .
 138     "FROM openemr_postcalendar_events AS e " .
 139     "$tracker_joins" .
 140     "LEFT OUTER JOIN facility AS f ON e.pc_facility = f.id " .
 141     "LEFT OUTER JOIN patient_data AS p ON p.pid = e.pc_pid " .
 142     "LEFT OUTER JOIN users AS u ON u.id = e.pc_aid " .
 143     "LEFT OUTER JOIN openemr_postcalendar_categories AS c ON c.pc_catid = e.pc_catid " .
 144     "WHERE $where " .
 145     "ORDER BY $order_by";
 146
 147     if($bind_param) $sqlBindArray = array_merge($sqlBindArray, $bind_param);
 148
 149   }
 150
 151
 152   ///////////////////////////////////////////////////////////////////////
 153   // The following code is from the calculateEvents function in the    //
 154   // PostCalendar Module modified and inserted here by epsdky          //
 155   ///////////////////////////////////////////////////////////////////////
 156
 157   $events2 = array();
 158
 159   $res = sqlStatement($query, $sqlBindArray);
 160
 161   ////////
 162   if($nextX) {
 163   global $resNotNull;
 164   $resNotNull = (isset($res) && $res != null);
 165   }
 166
 167   while ($event = sqlFetchArray($res)) {
 168     ///////
 169     if($nextX) $stopDate = $event['pc_endDate'];
 170     else $stopDate = ($event['pc_endDate'] <= $to_date) ? $event['pc_endDate'] : $to_date;
 171     ///////
 172     $incX = 0;
 173     switch($event['pc_recurrtype']) {
 174
 175       case '0' :
 176
 177         $events2[] = $event;
 178
 179         break;
 180 //////
 181       case '1' :
 182       case '3' :
 183         $event_recurrspec = @unserialize($event['pc_recurrspec']);
 184
 185         $rfreq = $event_recurrspec['event_repeat_freq'];
 186         $rtype = $event_recurrspec['event_repeat_freq_type'];
 187         $exdate = $event_recurrspec['exdate'];
 188
 189         list($ny,$nm,$nd) = explode('-',$event['pc_eventDate']);
 190 //        $occurance = Date_Calc::dateFormat($nd,$nm,$ny,'%Y-%m-%d');
 191         $occurance = $event['pc_eventDate'];
 192
 193         while($occurance < $from_date) {
 194           $occurance =& __increment($nd,$nm,$ny,$rfreq,$rtype);
 195           list($ny,$nm,$nd) = explode('-',$occurance);
 196         }
 197
 198         while($occurance <= $stopDate) {
 199
 200             $excluded = false;
 201             if (isset($exdate)) {
 202                 foreach (explode(",", $exdate) as $exception) {
 203                     // occurrance format == yyyy-mm-dd
 204                     // exception format == yyyymmdd
 205                     if (preg_replace("/-/", "", $occurance) == $exception) {
 206                         $excluded = true;
 207                     }
 208                 }
 209             }
 210
 211             if ($excluded == false) {
 212               $event['pc_eventDate'] = $occurance;
 213               $event['pc_endDate'] = '0000-00-00';
 214               $events2[] = $event;
 215               //////
 216               if ($nextX) {
 217                 ++$incX;
 218                 if($incX == $nextX) break;
 219               }
 220               //////
 221             }
 222
 223             $occurance =& __increment($nd,$nm,$ny,$rfreq,$rtype);
 224             list($ny,$nm,$nd) = explode('-',$occurance);
 225
 226         }
 227
 228         break;
 229
 230 //////
 231       case '2' :
 232
 233         $event_recurrspec = @unserialize($event['pc_recurrspec']);
 234
 235         $rfreq = $event_recurrspec['event_repeat_on_freq'];
 236         $rnum  = $event_recurrspec['event_repeat_on_num'];
 237         $rday  = $event_recurrspec['event_repeat_on_day'];
 238         $exdate = $event_recurrspec['exdate'];
 239
 240         list($ny,$nm,$nd) = explode('-',$event['pc_eventDate']);
 241
 242         if(isset($event_recurrspec['rt2_pf_flag']) && $event_recurrspec['rt2_pf_flag']) $nd = 1;
 243
 244         $occuranceYm = "$ny-$nm"; // YYYY-mm
 245         $from_dateYm = substr($from_date,0,7); // YYYY-mm
 246         $stopDateYm = substr($stopDate,0,7); // YYYY-mm
 247
 248         // $nd will sometimes be 29, 30 or 31 and if used in the mktime functions below
 249         // a problem with overflow will occur so it is set to 1 to avoid this (for rt2
 250         // appointments set prior to fix $nd remains unchanged). This can be done since
 251         // $nd has no influence past the mktime functions.
 252         while($occuranceYm < $from_dateYm) {
 253           $occuranceYmX = date('Y-m-d',mktime(0,0,0,$nm+$rfreq,$nd,$ny));
 254           list($ny,$nm,$nd) = explode('-',$occuranceYmX);
 255           $occuranceYm = "$ny-$nm";
 256         }
 257
 258         while($occuranceYm <= $stopDateYm) {
 259
 260           // (YYYY-mm)-dd
 261           $dnum = $rnum;
 262           do {
 263             $occurance = Date_Calc::NWeekdayOfMonth($dnum--,$rday,$nm,$ny,$format="%Y-%m-%d");
 264           } while($occurance === -1);
 265
 266           if($occurance >= $from_date && $occurance <= $stopDate) {
 267
 268             $excluded = false;
 269             if (isset($exdate)) {
 270                 foreach (explode(",", $exdate) as $exception) {
 271                     // occurrance format == yyyy-mm-dd
 272                     // exception format == yyyymmdd
 273                     if (preg_replace("/-/", "", $occurance) == $exception) {
 274                         $excluded = true;
 275                     }
 276                 }
 277             }
 278
 279             if ($excluded == false) {
 280
 281               $event['pc_eventDate'] = $occurance;
 282               $event['pc_endDate'] = '0000-00-00';
 283               $events2[] = $event;
 284               //////
 285               if($nextX) {
 286                 ++$incX;
 287                 if($incX == $nextX) break;
 288               }
 289               //////
 290
 291             }
 292
 293           }
 294
 295           $occuranceYmX = date('Y-m-d',mktime(0,0,0,$nm+$rfreq,$nd,$ny));
 296           list($ny,$nm,$nd) = explode('-',$occuranceYmX);
 297           $occuranceYm = "$ny-$nm";
 298
 299         }
 300
 301         break;
 302
 303
 304
 305     }
 306
 307   }
 308   return $events2;
 309 ////////////////////// End of code inserted by epsdky
 310 }
 311
 312 function fetchAllEvents( $from_date, $to_date, $provider_id = null, $facility_id = null )
 313 {
 314         $sqlBindArray = array();
 315
 316         $where = "";
 317
 318         if ( $provider_id ) {
 319                 $where .= " AND e.pc_aid = ?";
 320                 array_push($sqlBindArray, $provider_id);
 321         }
 322
 323         if ( $facility_id ) {
 324                 $where .= " AND e.pc_facility = ? AND u.facility_id = ?";
 325                 array_push($sqlBindArray, $facility_id, $facility_id);
 326         }
 327
 328         $appointments = fetchEvents( $from_date, $to_date, $where, null, false, 0, $sqlBindArray );
 329         return $appointments;
 330 }
 331
 332 //Support for therapy group appointments added by shachar z.
 333 function fetchAppointments( $from_date, $to_date, $patient_id = null, $provider_id = null, $facility_id = null, $pc_appstatus = null, $with_out_provider = null, $with_out_facility = null, $pc_catid = null, $tracker_board = false, $nextX = 0, $group_id = null, $patient_name = null)
 334 {
 335         $sqlBindArray = array();
 336
 337         $where = "";
 338
 339         if ( $provider_id ) {
 340                 $where .= " AND e.pc_aid = ?";
 341                 array_push($sqlBindArray, $provider_id);
 342         }
 343
 344         if ( $patient_id ) {
 345                 $where .= " AND e.pc_pid = ?";
 346                 array_push($sqlBindArray, $patient_id);
 347         } elseif ( $group_id ) {
 348                 //if $group_id this means we want only the group events
 349                 $where .= " AND e.pc_gid = ? AND e.pc_pid = ''";
 350                 array_push($sqlBindArray, $group_id);
 351         } else {
 352                 $where .= " AND e.pc_pid != ''";
 353         }
 354
 355         if ( $facility_id ) {
 356                 $where .= " AND e.pc_facility = ?";
 357                 array_push($sqlBindArray, $facility_id);
 358         }
 359
 360         //Appointment Status Checking
 361         if ($pc_appstatus != '') {
 362                 $where .= " AND e.pc_apptstatus = ?";
 363                 array_push($sqlBindArray, $pc_appstatus);
 364         }
 365
 366         if ($pc_catid != null) {
 367                 $where .= " AND e.pc_catid = ?";
 368                 array_push($sqlBindArray, $pc_catid);
 369         }
 370
 371         if ($patient_name != null) {
 372                 $where .= " AND (p.fname LIKE CONCAT('%',?,'%') OR p.lname LIKE CONCAT('%',?,'%'))";
 373                 array_push($sqlBindArray, $patient_name, $patient_name);
 374         }
 375
 376         //Without Provider checking
 377         if ($with_out_provider != '') {
 378                 $where .= " AND e.pc_aid = ''";
 379         }
 380
 381         //Without Facility checking
 382         if ($with_out_facility != '') {
 383                 $where .= " AND e.pc_facility = 0";
 384         }
 385
 386         $appointments = fetchEvents( $from_date, $to_date, $where, '', $tracker_board, $nextX, $sqlBindArray );
 387         return $appointments;
 388 }
 389
 390 //Support for therapy group appointments added by shachar z.
 391 function fetchNextXAppts($from_date, $patient_id, $nextX = 1, $group_id = null) {
 392
 393   $appts = array();
 394   $nextXAppts = array();
 395   $appts = fetchAppointments( $from_date, null, $patient_id, null, null, null, null, null, null, false, $nextX, $group_id);
 396   if($appts) {
 397     $appts = sortAppointments($appts);
 398     $nextXAppts = array_slice($appts, 0, $nextX);
 399   }
 400   return $nextXAppts;
 401
 402 }
 403
 404 // get the event slot size in seconds
 405 function getSlotSize()
 406 {
 407         if ( isset( $GLOBALS['calendar_interval'] ) ) {
 408                 return $GLOBALS['calendar_interval'] * 60;
 409         }
 410         return 15 * 60;
 411 }
 412
 413 function getAvailableSlots( $from_date, $to_date, $provider_id = null, $facility_id = null )
 414 {
 415         $appointments = fetchAllEvents( $from_date, $to_date, $provider_id, $facility_id );
 416         $appointments = sortAppointments( $appointments, "date" );
 417         $from_datetime = strtotime( $from_date." 00:00:00" );
 418         $to_datetime = strtotime( $to_date." 23:59:59" );
 419         $availableSlots = array();
 420         $start_time = 0;
 421         $date = 0;
 422         for ( $i = 0; $i < count( $appointments ); ++$i )
 423         {
 424                 if ( $appointments[$i]['pc_catid'] == 2 ) { // 2 == In Office
 425                         $start_time = $appointments[$i]['pc_startTime'];
 426                         $date = $appointments[$i]['pc_eventDate'];
 427                         $provider_id = $appointments[$i]['uprovider_id'];
 428                 } else if ( $appointments[$i]['pc_catid'] == 3 ) { // 3 == Out Of Office
 429                         continue;
 430                 } else {
 431                         $start_time = $appointments[$i]['pc_endTime'];
 432                         $date = $appointments[$i]['pc_eventDate'];
 433                         $provider_id = $appointments[$i]['uprovider_id'];
 434                 }
 435
 436                 // find next appointment with the same provider
 437                 $next_appointment_date = 0;
 438                 $next_appointment_time = 0;
 439                 for ( $j = $i+1; $j < count( $appointments ); ++$j ) {
 440                         if ( $appointments[$j]['uprovider_id'] == $provider_id ) {
 441                                 $next_appointment_date = $appointments[$j]['pc_eventDate'];
 442                                 $next_appointment_time = $appointments[$j]['pc_startTime'];
 443                                 break;
 444                         }
 445                 }
 446
 447                 $same_day = ( strtotime( $next_appointment_date ) == strtotime( $date ) ) ? true : false;
 448
 449                 if ( $next_appointment_time && $same_day ) {
 450                         // check the start time of the next appointment
 451
 452                         $start_datetime = strtotime( $date." ".$start_time );
 453                         $next_appointment_datetime = strtotime( $next_appointment_date." ".$next_appointment_time );
 454                         $curr_time = $start_datetime;
 455                         while ( $curr_time < $next_appointment_datetime - (getSlotSize() / 2) ) {
 456                                 //create a new appointment ever 15 minutes
 457                                 $time = date( "H:i:s", $curr_time );
 458                                 $available_slot = createAvailableSlot(
 459                                         $appointments[$i]['pc_eventDate'],
 460                                         $time,
 461                                         $appointments[$i]['ufname'],
 462                                         $appointments[$i]['ulname'],
 463                                         $appointments[$i]['umname'] );
 464                                 $availableSlots []= $available_slot;
 465                                 $curr_time += getSlotSize(); // add a 15-minute slot
 466                         }
 467                 }
 468         }
 469
 470         return $availableSlots;
 471 }
 472
 473 function createAvailableSlot( $event_date, $start_time, $provider_fname, $provider_lname, $provider_mname = "", $cat_name = "Available" )
 474 {
 475         $newSlot = array();
 476         $newSlot['ulname'] = $provider_lname;
 477         $newSlot['ufname'] = $provider_fname;
 478         $newSlot['umname'] = $provider_mname;
 479         $newSlot['pc_eventDate'] = $event_date;
 480         $newSlot['pc_startTime'] = $start_time;
 481         $newSlot['pc_endTime'] = $start_time;
 482         $newSlot['pc_catname'] = $cat_name;
 483         return $newSlot;
 484 }
 485
 486 function getCompareFunction( $code ) {
 487         global $COMPARE_FUNCTION_HASH;
 488         return $COMPARE_FUNCTION_HASH[$code];
 489 }
 490
 491 function getComparisonOrder( $code ) {
 492         global $ORDERHASH;
 493         return $ORDERHASH[$code];
 494 }
 495
 496
 497 function sortAppointments( array $appointments, $orderBy = 'date' )
 498 {
 499         global $appointment_sort_order;
 500         $appointment_sort_order = $orderBy;
 501         usort( $appointments, "compareAppointments" );
 502         return $appointments;
 503 }
 504
 505 // cmp_function for usort
 506 // The comparison function must return an integer less than, equal to,
 507 // or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
 508 function compareAppointments( $appointment1, $appointment2 )
 509 {
 510         global $appointment_sort_order;
 511         $comparisonOrder = getComparisonOrder( $appointment_sort_order );
 512         foreach ($comparisonOrder as $comparison) {
 513                 $cmp_function = getCompareFunction($comparison);
 514                 $result = $cmp_function($appointment1, $appointment2);
 515                 if (0 != $result) {
 516                         return $result;
 517                 }
 518         }
 519
 520         return 0;
 521 }
 522
 523 function compareBasic( $e1, $e2 )
 524 {
 525         if ( $e1 < $e2 ) {
 526                 return -1;
 527         } else if ( $e1 > $e2 ) {
 528                 return 1;
 529         }
 530
 531         return 0;
 532 }
 533
 534 function compareAppointmentsByDate( $appointment1, $appointment2 )
 535 {
 536         $date1 = strtotime( $appointment1['pc_eventDate'] );
 537         $date2 = strtotime( $appointment2['pc_eventDate'] );
 538
 539         return compareBasic( $date1, $date2 );
 540 }
 541
 542 function compareAppointmentsByTime( $appointment1, $appointment2 )
 543 {
 544         $time1 = strtotime( $appointment1['pc_startTime'] );
 545         $time2 = strtotime( $appointment2['pc_startTime'] );
 546
 547         return compareBasic( $time1, $time2 );
 548 }
 549
 550 function compareAppointmentsByDoctorName( $appointment1, $appointment2 )
 551 {
 552         $name1 = $appointment1['ulname'];
 553         $name2 = $appointment2['ulname'];
 554         $cmp = compareBasic( $name1, $name2 );
 555         if ( $cmp == 0 ) {
 556                 $name1 = $appointment1['ufname'];
 557                 $name2 = $appointment2['ufname'];
 558                 return compareBasic( $name1, $name2 );
 559         }
 560
 561         return $cmp;
 562 }
 563
 564 function compareAppointmentsByPatientName( $appointment1, $appointment2 )
 565 {
 566         $name1 = $appointment1['lname'];
 567         $name2 = $appointment2['lname'];
 568         $cmp = compareBasic( $name1, $name2 );
 569         if ( $cmp == 0 ) {
 570                 $name1 = $appointment1['fname'];
 571                 $name2 = $appointment2['fname'];
 572                 return compareBasic( $name1, $name2 );
 573         }
 574
 575         return $cmp;
 576 }
 577
 578 function compareAppointmentsByType( $appointment1, $appointment2 )
 579 {
 580         $type1 = $appointment1['pc_catid'];
 581         $type2 = $appointment2['pc_catid'];
 582         return compareBasic( $type1, $type2 );
 583 }
 584
 585 function compareAppointmentsByPatientId( $appointment1, $appointment2 )
 586 {
 587         $id1 = $appointment1['pubpid'];
 588         $id2 = $appointment2['pubpid'];
 589         return compareBasic( $id1, $id2 );
 590 }
 591
 592 function compareAppointmentsByComment( $appointment1, $appointment2 )
 593 {
 594         $comment1 = $appointment1['pc_hometext'];
 595         $comment2 = $appointment2['pc_hometext'];
 596         return compareBasic( $comment1, $comment2 );
 597 }
 598
 599 function compareAppointmentsByStatus( $appointment1, $appointment2 )
 600 {
 601         $status1 = $appointment1['pc_apptstatus'];
 602         $status2 = $appointment2['pc_apptstatus'];
 603         return compareBasic( $status1, $status2 );
 604 }
 605
 606 function compareAppointmentsByTrackerStatus( $appointment1, $appointment2 )
 607 {
 608         $trackerstatus1 = $appointment1['status'];
 609         $trackerstatus2 = $appointment2['status'];
 610         return compareBasic( $trackerstatus1, $trackerstatus2 );
 611 }
 612
 613 function compareAppointmentsByCompletedDrugScreen( $appointment1, $appointment2 )
 614 {
 615         $completed1 = $appointment1['drug_screen_completed'];
 616         $completed2 = $appointment2['drug_screen_completed'];
 617         return compareBasic( $completed1, $completed2 );
 618 }
 619
 620 function fetchAppointmentCategories()
 621 {
 622      $catSQL= " SELECT pc_catid as id, pc_catname as category "
 623             . " FROM openemr_postcalendar_categories WHERE pc_recurrtype=0 and pc_cattype=0";
 624         if($GLOBALS['enable_group_therapy']) $catSQL .= " OR pc_cattype=3";
 625     $catSQL .= "  ORDER BY category";
 626      return sqlStatement($catSQL);
 627 }
 628
 629 function interpretRecurrence($recurr_freq, $recurr_type){
 630         global $REPEAT_FREQ, $REPEAT_FREQ_TYPE, $REPEAT_ON_NUM, $REPEAT_ON_DAY;
 631         $interpreted = "";
 632         $recurr_freq = unserialize($recurr_freq);
 633         if($recurr_type == 1){
 634                 $interpreted = $REPEAT_FREQ[$recurr_freq['event_repeat_freq']];
 635                 $interpreted .= " " . $REPEAT_FREQ_TYPE[$recurr_freq['event_repeat_freq_type']];
 636         }
 637         elseif($recurr_type == 2){
 638                 $interpreted = $REPEAT_FREQ[$recurr_freq['event_repeat_on_freq']];
 639                 $interpreted .= " " . $REPEAT_ON_NUM[$recurr_freq['event_repeat_on_num']];
 640                 $interpreted .= " " . $REPEAT_ON_DAY[$recurr_freq['event_repeat_on_day']];
 641         }
 642         elseif ($recurr_type == 3){
 643                 $interpreted = $REPEAT_FREQ[1];
 644                 $comma = "";
 645                 $day_arr = explode(",", $recurr_freq['event_repeat_freq']);
 646                 foreach ($day_arr as $day){
 647                         $interpreted .= $comma . " " . $REPEAT_ON_DAY[$day - 1];
 648                         $comma = ",";
 649                 }
 650
 651         }
 652
 653         return $interpreted;
 654 }
 655
 656 function fetchRecurrences($pid){
 657     $query = "SELECT pe.pc_title, pe.pc_endDate, pe.pc_recurrtype, pe.pc_recurrspec, pc.pc_catname FROM openemr_postcalendar_events AS pe "
 658                                         . "JOIN openemr_postcalendar_categories AS pc ON pe.pc_catid=pc.pc_catid "
 659                                         . "WHERE pe.pc_pid = ?  AND pe.pc_recurrtype > 0;";
 660         $sqlBindArray = array();
 661         array_push($sqlBindArray, $pid);
 662         $res = sqlStatement($query, $sqlBindArray);
 663         $row = 0;
 664         while($res_arr[$row] = sqlFetchArray($res)) {
 665                 $res_arr[$row]['pc_recurrspec'] = interpretRecurrence($res_arr[$row]['pc_recurrspec'], $res_arr[$row]['pc_recurrtype']);
 666                 $row++;
 667         }
 668         return $res_arr;
 669 }
 670
 671 function ends_in_a_week($end_date){
 672         $timestamp_in_a_week = strtotime('+7 day');
 673         $timestamp_end_date = strtotime($end_date);
 674         if($timestamp_in_a_week > $timestamp_end_date){
 675                 return true; //ends in a week
 676         }
 677         return false; // ends in more than a week
 678 }
 679
 680 //Checks if recurrence is current (didn't end yet).
 681 function recurrence_is_current($end_date){
 682         $end_date_timestamp = strtotime($end_date);
 683         $current_timestamp = time();
 684         if($current_timestamp <= $end_date_timestamp){
 685                 return true; //recurrence is current
 686         }
 687         return false;
 688 }
 689
 690 ?>