adding csv plug in code, with no event handler

grade/import/csv/index.php

@@ -0,0 +1,111 @@
+<?php
+
+require_once('../../../config.php');
+
+// capability check
+$id = required_param('id', PARAM_INT); // course id
+// require_capability('moodle/site:uploadusers', get_context_instance(CONTEXT_SYSTEM));
+
+$csv_encode = '/\&\#44/';
+if (isset($CFG->CSV_DELIMITER)) {
+    $csv_delimiter = '\\' . $CFG->CSV_DELIMITER;
+    $csv_delimiter2 = $CFG->CSV_DELIMITER;
+
+    if (isset($CFG->CSV_ENCODE)) {
+        $csv_encode = '/\&\#' . $CFG->CSV_ENCODE . '/';
+    }
+} else {
+    $csv_delimiter = "\,";
+    $csv_delimiter2 = ",";
+}
+
+require_once('../grade_import_form.php');
+$mform = new grade_import_form();
+
+print_header("test","test","test");
+if ( $formdata = $mform->get_data() ) {
+
+    $filename = $mform->get_userfile_name();
+    
+    // Large files are likely to take their time and memory. Let PHP know
+    // that we'll take longer, and that the process should be recycled soon
+    // to free up memory.
+    @set_time_limit(0);
+    @raise_memory_limit("192M");
+    if (function_exists('apache_child_terminate')) {
+        @apache_child_terminate();
+    }
+
+    $text = my_file_get_contents($filename);
+    // trim utf-8 bom
+    $textlib = new textlib();
+    $text = $textlib->trim_utf8_bom($text);
+    // Fix mac/dos newlines
+    $text = preg_replace('!\r\n?!',"\n",$text);
+    $fp = fopen($filename, "w");
+    fwrite($fp,$text);
+    fclose($fp);
+
+    $fp = fopen($filename, "r");
+    
+    // --- get header (field names) ---
+    $header = split($csv_delimiter, fgets($fp,1024));
+    
+    foreach ($header as $i => $h) {
+        $h = trim($h); $header[$i] = $h; // remove whitespace
+        // flag events to add columns if needed (?)
+        
+        /// if any header is unknown, print form 2       
+    }
+    
+    while (!feof ($fp)) {
+        // add something
+        $line = split($csv_delimiter, fgets($fp,1024));            
+        
+        // each line is a student record
+        unset ($studentid);
+        unset ($studentgrades);
+        
+        foreach ($line as $key => $value) {
+            
+            //decode encoded commas
+            $value = preg_replace($csv_encode,$csv_delimiter2,trim($value)); // $record[$header[$key]]
+            
+            switch ($header[$key]) {
+                case 'userid': // 
+                    $studentid = $value;
+                break;
+                // might need to add columns for comments
+                default:
+                    // case of an idnumber
+                    $studentgrades[$header[$key]] = $value;
+                break;  
+            }
+        }
+        
+        foreach ($studentgrades as $idnumber => $studentgrade) {
+            // trigger event?
+            // echo "<br/>triggering event for $idnumber... student id is $studentid and grade is $studentgrade";
+            
+        }
+    }  
+} else {
+    $mform->display();
+}
+print_footer();
+
+
+function my_file_get_contents($filename, $use_include_path = 0) {
+    /// Returns the file as one big long string
+
+    $data = "";
+    $file = @fopen($filename, "rb", $use_include_path);
+    if ($file) {
+        while (!feof($file)) {
+            $data .= fread($file, 1024);
+        }
+        fclose($file);
+    }
+    return $data;
+}
+?>

grade/import/grade_import_form.php

@@ -0,0 +1,27 @@
+<?php // $Id$
+require_once $CFG->libdir.'/formslib.php';
+
+class grade_import_form extends moodleform {
+    function definition (){
+        $mform =& $this->_form;
+
+        // course id needs to be passed for auth purposes
+        $mform->addElement('hidden', 'id', optional_param('id'));
+
+        // file upload
+        $mform->addElement('file', 'userfile', get_string('file'));
+        $mform->addRule('userfile', null, 'required');
+
+        $this->add_action_buttons(false, get_string('uploadgrades'));
+    }
+
+    function get_userfile_name(){
+        if ($this->is_submitted() and $this->is_validated()) {
+            // return the temporary filename to process
+            return $this->_upload_manager->files['userfile']['tmp_name'];
+        }else{
+            return  NULL;
+        }
+    }
+}
+?>