Added favicon to default theme, get_customer_by_ref() helper and a couple of cleanups.
[fa-stable.git] / includes / date_functions.inc
index 13294eb055721b8653cba1b9208f24765727554a..96ecb31bcdcf2967a2e90c6cb4173410f1da88bb 100644 (file)
@@ -18,27 +18,34 @@ this can be a string either "d/m/Y" for UK/Australia/New Zealand dates or
 "m/d/Y" for US/Canada format dates depending on setting in preferences.
 
 */
-if(function_exists("date_default_timezone_set") && function_exists("date_default_timezone_get"))
-       @date_default_timezone_set(@date_default_timezone_get());
 
 function __date($year, $month, $day)
 {
-       global $dateseps;
+       global $dateseps, $tmonths;
        
        $how = user_date_format();
        $sep = $dateseps[user_date_sep()];
        $day = (int)$day;
        $month = (int)$month;
-       if ($day < 10)
-               $day = "0".$day;
-       if ($month < 10)
-               $month = "0".$month;
+       if ($how < 3)
+       {
+               if ($day < 10)
+                       $day = "0".$day;
+               if ($month < 10)
+                       $month = "0".$month;
+       }               
        if ($how == 0)
                return $month.$sep.$day.$sep.$year;
-       else if ($how == 1)
+       elseif ($how == 1)
                return $day.$sep.$month.$sep.$year;
-       else
+       elseif ($how == 2)
                return $year.$sep.$month.$sep.$day;
+       elseif ($how == 3)
+               return $tmonths[$month].$sep.$day.$sep.$year;
+       elseif ($how == 4)
+               return $day.$sep.$tmonths[$month].$sep.$year;
+       else
+               return $year.$sep.$tmonths[$month].$sep.$day;
 }
 
 function is_date($date_) 
@@ -51,47 +58,73 @@ function is_date($date_)
        $sep = $dateseps[user_date_sep()];
 
        $date_ = trim($date_);
-       $date_ = str_replace($sep, "", $date_);
-       if (strlen($date_) == 6)
+       $date = str_replace($sep, "", $date_);
+       
+       if ($how > 2)
+       {
+               global $tmonths;
+               $dd = explode($sep, $date_);
+               if ($how == 3)
+               {
+                       $day = $dd[1];
+                       $month = array_search($dd[0], $tmonths);
+                       $year = $dd[2];
+               } 
+               elseif ($how == 4)
+               {
+                       $day = $dd[0];
+                       $month = array_search($dd[1], $tmonths);
+                       $year = $dd[2];
+               } 
+               else
+               {
+                       $day = $dd[2];
+                       $month = array_search($dd[1], $tmonths);
+                       $year = $dd[0];
+               }
+               if ($year < 1000)
+                       return 0;
+       }
+       elseif (strlen($date) == 6)
        {
                if ($how == 0)
                {
-                       $day = substr($date_,2,2);
-                       $month = substr($date_,0,2);
-                       $year = substr($date_,4,2);
+                       $day = substr($date,2,2);
+                       $month = substr($date,0,2);
+                       $year = substr($date,4,2);
                } 
                elseif ($how == 1)
                {
-                       $day = substr($date_,0,2);
-                       $month = substr($date_,2,2);
-                       $year = substr($date_,4,2);
+                       $day = substr($date,0,2);
+                       $month = substr($date,2,2);
+                       $year = substr($date,4,2);
                } 
                else
                {
-                       $day = substr($date_,4,2);
-                       $month = substr($date_,2,2);
-                       $year = substr($date_,0,2);
+                       $day = substr($date,4,2);
+                       $month = substr($date,2,2);
+                       $year = substr($date,0,2);
                }
        }
-       elseif (strlen($date_) == 8)
+       elseif (strlen($date) == 8)
        {
                if ($how == 0)
                {
-                       $day = substr($date_,2,2);
-                       $month = substr($date_,0,2);
-                       $year = substr($date_,4,4);
+                       $day = substr($date,2,2);
+                       $month = substr($date,0,2);
+                       $year = substr($date,4,4);
                } 
                elseif ($how == 1)
                {
-                       $day = substr($date_,0,2);
-                       $month = substr($date_,2,2);
-                       $year = substr($date_,4,4);
+                       $day = substr($date,0,2);
+                       $month = substr($date,2,2);
+                       $year = substr($date,4,4);
                } 
                else
                {
-                       $day = substr($date_,6,2);
-                       $month = substr($date_,4,2);
-                       $year = substr($date_,0,4);
+                       $day = substr($date,6,2);
+                       $month = substr($date,4,2);
+                       $year = substr($date,0,4);
                }
        }
        if (!isset($year)|| (int)$year > 9999) 
@@ -99,13 +132,12 @@ function is_date($date_)
                return 0;
        }
 
-
        if (is_long((int)$day) && is_long((int)$month) && is_long((int)$year))
        {
                global $date_system;
                if ($date_system == 1)
                        list($year, $month, $day) = jalali_to_gregorian($year, $month, $day);  
-               else if ($date_system == 2)     
+               elseif ($date_system == 2)      
                        list($year, $month, $day) = islamic_to_gregorian($year, $month, $day);  
                if (checkdate((int)$month, (int)$day, (int)$year))
                {
@@ -131,7 +163,7 @@ function Today()
        $day = date("j");
        if ($date_system == 1)
                list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
-       else if ($date_system == 2)     
+       elseif ($date_system == 2)      
                list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
        return __date($year, $month, $day);     
 }
@@ -148,7 +180,7 @@ function Now()
 //
 function new_doc_date($date=null)
 {
-       if (isset($date))
+       if (isset($date) && $date != '')
                $_SESSION['_default_date'] = $date;
 
        if (!isset($_SESSION['_default_date']) || !sticky_doc_date())
@@ -160,28 +192,34 @@ function new_doc_date($date=null)
 function is_date_in_fiscalyear($date, $convert=false)
 {
        global $path_to_root;
-       include_once($path_to_root . "/admin/db/company_db.inc");
-
-       $myrow = get_current_fiscalyear();
-       if ($myrow['closed'] == 1)
-               return 0;
-       if ($convert)
-               $date2 = sql2date($date);
-       else
-               $date2 = $date;
-       $begin = sql2date($myrow['begin']);
-       $end = sql2date($myrow['end']);
-       if (date1_greater_date2($begin, $date2) || date1_greater_date2($date2, $end))
-       {
-               return 0;
-       }
-       return 1;
+       include_once($path_to_root . "/admin/db/fiscalyears_db.inc");
+
+    //Chaitanya
+    if ($convert)
+        $date2 = sql2date($date);
+    else
+        $date2 = $date;
+
+    if ($_SESSION["wa_current_user"]->can_access('SA_MULTIFISCALYEARS')) // allow all open years for this one
+        return is_date_in_fiscalyears($date2, false); 
+
+    $myrow = get_current_fiscalyear();
+    if ($myrow['closed'] == 1)
+        return 0;
+    
+    $begin = sql2date($myrow['begin']);
+    $end = sql2date($myrow['end']);
+    if (date1_greater_date2($begin, $date2) || date1_greater_date2($date2, $end))
+    {
+        return 0;
+    }
+    return 1;
 }
 
 function begin_fiscalyear()
 {
        global $path_to_root;
-       include_once($path_to_root . "/admin/db/company_db.inc");
+       include_once($path_to_root . "/admin/db/fiscalyears_db.inc");
 
        $myrow = get_current_fiscalyear();
        return sql2date($myrow['begin']);
@@ -190,7 +228,7 @@ function begin_fiscalyear()
 function end_fiscalyear()
 {
        global $path_to_root;
-       include_once($path_to_root . "/admin/db/company_db.inc");
+       include_once($path_to_root . "/admin/db/fiscalyears_db.inc");
 
        $myrow = get_current_fiscalyear();
        return sql2date($myrow['end']);
@@ -202,60 +240,84 @@ function begin_month($date)
     list($day, $month, $year) = explode_date_to_dmy($date);
     if ($date_system == 1)
        list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
-    else if ($date_system == 2)        
+    elseif ($date_system == 2) 
        list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
        return __date($year, $month, 1);
 }
 
-function end_month($date)
+function days_in_month($month, $year)
 {
        global $date_system;
-    list($day, $month, $year) = explode_date_to_dmy($date);
+
        if ($date_system == 1)
        {
-               list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
                $days_in_month = array(31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, ((((((($year - (($year > 0) ? 474 : 473)) % 2820) + 474) + 38) * 682) % 2816) < 682 ? 30 : 29));
        }
-       else if ($date_system == 2)
+       elseif ($date_system == 2)
        {
-               list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
                $days_in_month = array(30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, (((((11 * $year) + 14) % 30) < 11) ? 30 : 29));
        }
        else // gregorian date
                $days_in_month = array(31, ((!($year % 4 ) && (($year % 100) || !($year % 400)))?29:28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
-       return __date($year, $month, $days_in_month[$month - 1]);
+
+       return $days_in_month[$month - 1];
+}
+
+function end_month($date)
+{
+       global $date_system;
+
+    list($day, $month, $year) = explode_date_to_dmy($date);
+       if ($date_system == 1)
+       {
+               list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
+       }
+       elseif ($date_system == 2)
+       {
+               list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
+       }
+
+       return __date($year, $month, days_in_month($month, $year));
 }
 
 function add_days($date, $days) // accepts negative values as well
 {
        global $date_system;
     list($day, $month, $year) = explode_date_to_dmy($date);
-       $timet = Mktime(0,0,0, $month, $day + $days, $year);
+       $timet = mktime(0,0,0, $month, $day + $days, $year);
     if ($date_system == 1 || $date_system == 2)
     {
        if ($date_system == 1)
                list($year, $month, $day) = gregorian_to_jalali(date("Y", $timet), date("n", $timet), date("j", $timet));
-       else if ($date_system == 2)     
+       elseif ($date_system == 2)      
                list($year, $month, $day) = gregorian_to_islamic(date("Y", $timet), date("n", $timet), date("j", $timet));
        return __date($year, $month, $day);
     }
-    return date(user_date_display(), $timet);
+    list($year, $month, $day) = explode("-", date("Y-m-d", $timet));
+       return __date($year, $month, $day);
 }
 
 function add_months($date, $months) // accepts negative values as well
 {
        global $date_system;
     list($day, $month, $year) = explode_date_to_dmy($date);
-       $timet = Mktime(0,0,0, $month + $months, $day, $year);
+
+       $months += $year*12+$month;
+       $month = ($months-1)%12+1;
+       $year = ($months-$month)/12;
+
+       $timet = mktime(0,0,0, $month, min($day, days_in_month($month, $year)), $year);
+
     if ($date_system == 1 || $date_system == 2)
     {
        if ($date_system == 1)
                list($year, $month, $day) = gregorian_to_jalali(date("Y", $timet), date("n", $timet), date("j", $timet));
-       else if ($date_system == 2)     
+       elseif ($date_system == 2)      
                list($year, $month, $day) = gregorian_to_islamic(date("Y", $timet), date("n", $timet), date("j", $timet));
        return __date($year, $month, $day);
     }
-    return date(user_date_display(), $timet);
+    list($year, $month, $day) = explode("-", date("Y-m-d", $timet));
+       return __date($year, $month, $day);
 }
 
 function add_years($date, $years) // accepts negative values as well
@@ -267,11 +329,12 @@ function add_years($date, $years) // accepts negative values as well
     {
        if ($date_system == 1)
                list($year, $month, $day) = gregorian_to_jalali(date("Y", $timet), date("n", $timet), date("j", $timet));
-       else if ($date_system == 2)     
+       elseif ($date_system == 2)      
                list($year, $month, $day) = gregorian_to_islamic(date("Y", $timet), date("n", $timet), date("j", $timet));
        return __date($year, $month, $day);
     }
-    return date(user_date_display(), $timet);
+    list($year, $month, $day) = explode("-", date("Y-m-d", $timet));
+       return __date($year, $month, $day);
 }
 
 //_______________________________________________________________
@@ -281,8 +344,6 @@ function sql2date($date_)
        global $date_system;
 
        //for MySQL dates are in the format YYYY-mm-dd
-       if ($date_ == null || strlen($date_) == 0)
-               return "";
 
        if (strpos($date_, "/")) 
        { // In MySQL it could be either / or -
@@ -292,6 +353,8 @@ function sql2date($date_)
        {
                list($year, $month, $day) = explode("-", $date_);
        }
+       if (!isset($day)) // data format error
+               return "";
 
        if (strlen($day) > 4) 
        {  /*chop off the time stuff */
@@ -299,7 +362,7 @@ function sql2date($date_)
        }
        if ($date_system == 1)
                list($year, $month, $day) = gregorian_to_jalali($year, $month, $day);
-       else if ($date_system == 2)
+       elseif ($date_system == 2)
                list($year, $month, $day) = gregorian_to_islamic($year, $month, $day);
        return __date($year, $month, $day);     
 } // end function sql2date
@@ -307,7 +370,7 @@ function sql2date($date_)
 
 function date2sql($date_)
 {
-       global $dateseps, $date_system;
+       global $dateseps, $date_system, $tmonths;
 /* takes a date in a the format specified in $DefaultDateFormat
 and converts to a yyyy/mm/dd format */
 
@@ -318,53 +381,19 @@ and converts to a yyyy/mm/dd format */
                return "";
 
        $date_ = trim($date_);
-       $date_ = str_replace($sep, "", $date_);
-
-       if (strlen($date_) == 6)
-       {
-               if ($how == 0)
-               {
-                       $day = substr($date_,2,2);
-                       $month = substr($date_,0,2);
-                       $year = substr($date_,4,2);
-               } 
-               elseif ($how == 1)
-               {
-                       $day = substr($date_,0,2);
-                       $month = substr($date_,2,2);
-                       $year = substr($date_,4,2);
-               } 
-               else
-               {
-                       $day = substr($date_,4,2);
-                       $month = substr($date_,2,2);
-                       $year = substr($date_,0,2);
-               }
-       }
-       elseif (strlen($date_) == 8)
+    $year = $month = $day = 0;
+    // Split up the date by the separator based on "how" to split it
+    if ($how == 0 || $how == 3) // MMDDYYYY or MmmDDYYYY
+        list($month, $day, $year) = explode($sep, $date_);
+    elseif ($how == 1 || $how == 4) // DDMMYYYY or DDMmYYYY
+        list($day, $month, $year) = explode($sep, $date_);
+    else // $how == 2 || $how == 5, YYYYMMDD or YYYYMmmDD
+        list($year, $month, $day) = explode($sep, $date_);
+       if ($how > 2)
        {
-               if ($how == 0)
-               {
-                       $day = substr($date_,2,2);
-                       $month = substr($date_,0,2);
-                       $year = substr($date_,4,4);
-               } 
-               elseif ($how == 1)
-               {
-                       $day = substr($date_,0,2);
-                       $month = substr($date_,2,2);
-                       $year = substr($date_,4,4);
-               } 
-               else
-               {
-                       $day = substr($date_,6,2);
-                       $month = substr($date_,4,2);
-                       $year = substr($date_,0,4);
-               }
-       }
-       else
-               $year = $month = $day = 0;
-
+               global $tmonths;
+               $month = array_search($month, $tmonths);
+       }       
 //to modify assumption in 2030
        if ($date_system == 0 || $date_system == 3)
        {
@@ -383,9 +412,10 @@ and converts to a yyyy/mm/dd format */
        }
        if ($date_system == 1)
                list($year, $month, $day) = jalali_to_gregorian($year, $month, $day); 
-       else if ($date_system == 2)
+       elseif ($date_system == 2)
                list($year, $month, $day) = islamic_to_gregorian($year, $month, $day); 
-       return $year."-".$month."-".$day;
+
+       return sprintf("%04d-%02d-%02d", $year, $month, $day);
 }// end of function
 
 function date1_greater_date2 ($date1, $date2) 
@@ -395,8 +425,9 @@ function date1_greater_date2 ($date1, $date2)
 
        $date1 = date2sql($date1);
        $date2 = date2sql($date2);
-       list($year1, $month1, $day1) = explode("-", $date1);
-       list($year2, $month2, $day2) = explode("-", $date2);
+
+       @list($year1, $month1, $day1) = explode("-", $date1);
+       @list($year2, $month2, $day2) = explode("-", $date2);
 
        if ($year1 > $year2)
        {
@@ -460,9 +491,7 @@ function explode_date_to_dmy($date_)
        $date = date2sql($date_);
        if ($date == "") 
        {
-               $disp = user_date_display();
-               echo "<br>Dates must be entered in the format $disp. Sent was $date_<br>";
-               exit;
+               return array(0,0,0);
        }
        list($year, $month, $day) = explode("-", $date);
        return array($day, $month, $year);