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