khanat-code-old/code/web/private_php/ams/autoload/gui_elements.php

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<?php
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/**
* Helper class for generating gui related elements.
* This class contains functions that generate data-arrays for tables, or other visual entities
* @author Daan Janssens, mentored by Matthew Lagoe
*
*/
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class Gui_Elements{
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/**
* creates an array of information out of a list of objects which can be used to form a table.
* The idea of this is that you can pass an array of objects, an array of functions to perform on each object and a name for the index of the returning array to store
* the result.
* @param $inputList the list of objects of which we want to make a table.
* @param $funcArray a list of methods of that object we want to perform.
* @param $fieldArray a list of strings, that will be used to store our result into.
* @return an array with the indexes listed in $fieldArray and which holds the results of the methods in $funcArray on each object in the $inputList
*/
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public static function make_table( $inputList, $funcArray ,$fieldArray){
$i = 0;
$result = Array();
if(!empty($inputList)){
foreach($inputList as $element){
$j = 0;
foreach($funcArray as $function){
$fnames = explode('->', $function);
$intermediate_result = NULL;
foreach($fnames as $fname) {
if(substr($fname, -2) == "()") {
$fname = substr($fname, 0, strlen($fname)-2);
if($intermediate_result == NULL) {
$intermediate_result = $element->$fname();
} else {
$intermediate_result = $intermediate_result->$fname();
}
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} else {
if($intermediate_result == NULL) {
$intermediate_result = $element->$fname();
} else {
$intermediate_result = $intermediate_result->$fname();
}
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}
}
$result[$i][$fieldArray[$j]] = $intermediate_result;
$j++;
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}
$i++;
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}
}
return $result;
}
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/**
* creates an array of information out of a list of objects which can be used to form a table with a key as id.
* The idea is comparable to the make_table() function, though this time the results are stored in the index that is returned by the idFunction()
* @param $inputList the list of objects of which we want to make a table.
* @param $funcArray a list of methods of that object we want to perform.
* @param $idFunction a function that returns an id that will be used as index to store our result
* @return an array which holds the results of the methods in $funcArray on each object in the $inputList, though thearrays indexes are formed by using the idFunction.
*/
public static function make_table_with_key_is_id( $inputList, $funcArray, $idFunction){
$result = Array();
foreach($inputList as $element){
foreach($funcArray as $function){
$result[$element->$idFunction()] = $element->$function();
}
}
return $result;
}
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/**
* returns the elapsed time from a timestamp up till now.
* @param $ptime a timestamp.
* @return a string in the form of A years, B months, C days, D hours, E minutes, F seconds ago.
*/
public static function time_elapsed_string($ptime){
global $TIME_FORMAT;
$ptime = DateTime::createFromFormat($TIME_FORMAT, $ptime)->getTimestamp();
$etime = time() - $ptime;
if ($etime < 1)
{
return '0 seconds';
}
$a = array( 12 * 30 * 24 * 60 * 60 => 'year',
30 * 24 * 60 * 60 => 'month',
24 * 60 * 60 => 'day',
60 * 60 => 'hour',
60 => 'minute',
1 => 'second'
);
foreach ($a as $secs => $str)
{
$d = $etime / $secs;
if ($d >= 1)
{
$r = round($d);
return $r . ' ' . $str . ($r > 1 ? 's' : '') . ' ago';
}
}
}
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}