<?php
require_once("include/globals.php");

if (SessionActive() != 1 || ! UserLoggedIn()) {
   header("Location: /");
   exit();
}


//
// Process all actions to list and edit records
//
$CurrentTable = "classes";
$TitleText    = getLanguageText('TEXT-CLASS');
$OrderBy      = "sequence,grade";

// Start the template and output buffering
startTemplate();
$templatePageTitle = $GlobalText['ClassAdministration'];


$school_num = $school_record['record_num'];


//
// List all records
//


// Determine if there are any class_programs defined
$num_programs = db_getVal("select count(*) from class_programs where school_num = $school_num");

// Determine if there are any class_programs in use
$programs_in_use = 0;
if ($num_programs > 0) {
   $programs_in_use = db_getVal("select count(*) from classes where school_num = $school_num and class_program is not NULL");
}


// Initialize the select clause
$select = "";
$group_by = "";
$columnHeaders = array();
$columnAlign = array();

$TableWidth = 550;

// Build select and headers array
$numEntries = db_getVal("SELECT count(*) FROM classes WHERE school_num = $school_num AND division > '' AND division IS NOT NULL");
if ($school_record['i_display_division'] == 'Y' && $numEntries > 0) {
   if (strlen($select) > 0) $select .= ",";
   $select .= "division";
   if (strlen($group_by) > 0) $group_by .= ",";
   $group_by .= "division";
   $columnHeaders[] = getLanguageText('TEXT-CLASS');
   $columnAlign[] = 'center';
}

if ($programs_in_use > 0) {
   if (strlen($select) > 0) $select .= ",";
   $select .= "cp.program_name";
   if (strlen($group_by) > 0) $group_by .= ",";
   $group_by .= "program_name";
   $columnHeaders[] = getLanguageText('TEXT-PROGRAM');
   $columnAlign[] = 'left';
   $TableWidth += 75;
}

$numEntries = db_getVal("SELECT count(*) FROM classes WHERE school_num = $school_num AND grade > '' AND grade IS NOT NULL");
if ($school_record['p_display_grade'] == 'Y' && $numEntries > 0) {
   if (strlen($select) > 0) $select .= ",";
   $select .= "c.grade";
   if (strlen($group_by) > 0) $group_by .= ",";
   $group_by .= "c.grade";
   $columnHeaders[] = getLanguageText('TEXT-GRADE');
   $columnAlign[] = 'center';
}

$numEntries = db_getVal("SELECT count(*) FROM classes WHERE school_num = $school_num AND description > '' AND description IS NOT NULL");
if ($school_record['p_display_description'] == 'Y' && $numEntries > 0) {
   if (strlen($select) > 0) $select .= ",";
   $select .= "description";
   if (strlen($group_by) > 0) $group_by .= ",";
   $group_by .= "description";
   $columnHeaders[] = getLanguageText('TEXT-DESCRIPTION');
   $columnAlign[] = 'left';
   $TableWidth += 75;
}

if (strlen($select) > 0) $select .= ",";
$select .= "concat_ws(' ',p1.title,p1.first_name,p1.last_name) as t1,concat_ws(' ',p2.title,p2.first_name,p2.last_name) as t2";
if (strlen($group_by) > 0) $group_by .= ",";
$group_by .= "t1,t2,c.record_num";


$numFirstTeachers = db_getVal("SELECT count(*) FROM classes WHERE school_num = $school_num AND teacher1 > '' AND teacher1 IS NOT NULL");
if ($numFirstTeachers > 0) {
   $columnHeaders[] = getLanguageText('TEXT-TEACHER');
   $columnAlign[] = 'left';
}

// Append additional "Teacher" column to header array if required (maximum 2 teachers listed)
$numSecondTeachers = db_getVal("SELECT count(*) FROM classes WHERE school_num = $school_num AND teacher2 > '' AND teacher2 IS NOT NULL");
if ($numSecondTeachers > 0) {
   $columnHeaders[] = getLanguageText('TEXT-TEACHER');
   $columnAlign[] = 'left';
   $TableWidth += 75;
}

$query = "SELECT $select,c.record_num " .
         "FROM classes as c LEFT JOIN people as p1 on c.teacher1 = p1.record_num " .
            "LEFT JOIN people as p2 on c.teacher2 = p2.record_num and c.display_teacher2 = 'Y' " .
            "LEFT JOIN class_programs as cp on class_program = cp.record_num " .
         "WHERE c.school_num = $school_num " .
         "AND entry_type = 'Class' " .
         "ORDER BY c.sequence";
$results = db_query($query);


$message_width = $default_data_width;
include "form.messages.php";

$print_icon    = "<img src='images/icons/printer24.png' alt='Print Class Contact' border='0'>";

$commands = array(
               "<a href='/class-list.print.php?class_num=%d' title='Class Contact List'>$print_icon</a>"
                 );

listDataCustom($results,$columnHeaders,$action,$commands,'Y',$columnAlign);

echo("</center>\n");


endTemplate();
?>