TimeTrex Community Edition v16.2.0

2022-12-13 07:10:06 +01:00
commit 472f000c1b
6810 changed files with 2636142 additions and 0 deletions
--- a/classes/misc/arr_multisort.class.php
+++ b/classes/misc/arr_multisort.class.php
@ -0,0 +1,152 @@
+<?php
+/*
+arr_multisort 1.1
+Copyright: Left
+---------------------------------------------------------------------------------
+Version:        1.1
+Date:           11 January 2005
+---------------------------------------------------------------------------------
+Author:        Alexander Minkovsky (a_minkovsky@hotmail.com)
+---------------------------------------------------------------------------------
+License:        Choose the more appropriated for You - I don't care.
+---------------------------------------------------------------------------------
+Description:
+Class makes multicolumn sorting of associative arrays in format provided for example by mysql_fetch_assoc.
+Column names to be used when sorting can be specified as well the sorting direction for each column.
+Optional external to the class compare functions can be specified for each column.
+Look below for requirements concerning external compare functions.
+If external compare functions are not supplied, the internal _compare method is used.
+Dates are sorted correctly using the internal compare if they comply with GNU date syntax
+(http://www.gnu.org/software/tar/manual/html_chapter/tar_7.html)
+---------------------------------------------------------------------------------
+Example usage: see example.php
+---------------------------------------------------------------------------------
+*/
+
+define("SRT_ASC",1);
+define("SRT_DESC",-1);
+
+Class arr_multisort{
+
+  //The array to be sorted
+  var $arr = NULL;
+
+  /*
+  Sorting definition
+  Format: array (
+                    array(
+                            "colName"   =>   "some column name",
+                            "colDir"    =>   SRT_ASC,
+                            "compareFunc" => "myCompareFunction"
+                         ),
+                    ..........................
+                )
+  "compareFunc" element is optional - NULL by default and by default the class internal compare is used.
+  If External compare function is supplied it must conform to the following requirements:
+    ~ Accept two T_STRING parameters and return:
+        0  - if parameters are equal
+        1  - if first parameter is greater than second
+        -1 - if second parameter is greater than first
+  */
+  var $sortDef = NULL;
+
+  //Constructor
+  function arr_multisort(){
+    $this->arr = array();
+    $this->sortDef = array();
+  }
+
+  //setArray method - sets the array to be sorted
+  function setArray(&$arr){
+    $this->arr = $arr;
+  }
+
+  /*
+  addColumn method - ads entry to sorting definition
+  If column exists, values are overwriten.
+  */
+  function addColumn($colName="",$colDir=SRT_ASC,$compareFunc=NULL){
+    $idx = $this->_getColIdx($colName);
+    if($idx < 0){
+      $this->sortDef[] = array();
+      $idx = count($this->sortDef)-1;
+    }
+    $this->sortDef[$idx]["colName"] = $colName;
+    $this->sortDef[$idx]["colDir"] = $colDir;
+    $this->sortDef[$idx]["compareFunc"] = $compareFunc;
+  }
+
+  //removeColumn method - removes entry from sorting definition
+  function removeColumn($colName=""){
+    $idx = $this->_getColIdx($colName);
+    if($idx >= 0) array_splice($this->sortDef,$idx,1);
+  }
+
+  //resetColumns - removes any columns from sorting definition. Array to sort is not affected.
+  function resetColumns(){
+    $this->sortDef = array();
+  }
+
+  //sort() method
+  function &sort(){
+    if ( is_array($this->arr) ) {
+      usort($this->arr,array($this,"_compare"));
+      return $this->arr;
+    } else {
+      return FALSE;
+    }
+  }
+
+  //_getColIdx method [PRIVATE]
+  function _getColIdx($colName){
+    $idx = -1;
+    for($i=0;$i<count($this->sortDef);$i++){
+      $colDef = $this->sortDef[$i];
+      if($colDef["colName"] == $colName) $idx = $i;
+    }
+    return $idx;
+  }
+
+  //Comparison function [PRIVATE]
+  function _compare($a,$b,$idx = 0){
+    if(count($this->sortDef) == 0) return 0;
+    $colDef = $this->sortDef[$idx];
+
+    if ( isset($a[$colDef["colName"]]) ) {
+      $a_cmp = $a[$colDef["colName"]];
+    } else {
+      return 0;
+    }
+    if ( isset($b[$colDef["colName"]]) ) {
+      $b_cmp = $b[$colDef["colName"]];
+    } else {
+      return 0;
+    }
+
+    if(is_null($colDef["compareFunc"])){
+      //$a_dt = strtotime($a_cmp);
+      //$b_dt = strtotime($b_cmp);
+      //if(($a_dt == -1) || ($b_dt == -1)) {
+        $ret = $colDef["colDir"]*strnatcasecmp($a_cmp,$b_cmp);
+      //}
+      //else{
+      //  $ret = $colDef["colDir"]*(($a_dt > $b_dt)?1:(($a_dt < $b_dt)?-1:0));
+      //}
+    }
+    else{
+      $code = '$ret = ' . $colDef["compareFunc"] . '("' . $a_cmp . '","' . $b_cmp . '");';
+      eval($code);
+      $ret = $colDef["colDir"]*$ret;
+    }
+    if($ret == 0){
+      if($idx < (count($this->sortDef)-1))
+        return $this->_compare($a,$b,$idx+1);
+      else
+        return $ret;
+    }
+    else
+      return $ret;
+  }
+
+}
+?>