first commit

datafile/form.php

@@ -0,0 +1,59 @@
+<?php
+require_once ($CFG->libdir.'/formslib.php');
+
+class datafile_form extends moodleform {
+
+    function definition() {
+        global $CFG, $COURSE, $cm;
+        $mform =& $this->_form;
+
+//-------------------------------------------------------------------------------
+        $mform->addElement('hidden', 'id', $cm->id);
+        $mform->addElement('hidden', 'datafile');
+
+        $places = array();
+        $mform->addElement('text', 'filename', get_string('filename', 'programming'), 'maxlength="50"');
+        $filetype = array();
+        $filetype[] = $mform->createElement('radio', 'isbinary', null, get_string('textfile', 'programming'), 0);
+        $filetype[] = $mform->createElement('radio', 'isbinary', null, get_string('binaryfile', 'programming'), 1);
+        $mform->addGroup($filetype, 'filetype', get_string('filetype', 'programming'), ' ', false);
+        $mform->addElement('filepicker', 'data', get_string('datafile', 'programming'));
+        $mform->addElement('checkbox', 'usecheckdata', get_string('usecheckdata', 'programming'));
+        $mform->addElement('filepicker', 'checkdata', get_string('datafileforcheck', 'programming'));
+        $mform->disabledIf('checkdata', 'usecheckdata');
+
+        $mform->addElement('textarea', 'memo', get_string('memo', 'programming'), 'rows="5" cols="50"');
+
+// buttons
+        $this->add_action_buttons();
+    }
+
+    function validation($data, $files) {
+        $errors = array();
+        /// filename should not be empty
+        if (empty($data['filename'])) {
+            $errors['filename'] = get_string('required');
+        } else {
+            /// filename should only contain alpha, digit and underlins
+            if (!preg_match('/^[a-zA-Z0-9_\-\.]+$/', $data['filename'])) {
+                $errors['filename'] = get_string('filenamechars', 'programming');
+            }
+
+            /// file name should not duplicate
+            if (empty($data['id']) && count_records_select('programming_datafile', "programmingid={$data['programmingid']} AND filename='{$data['filename']}'")) {
+                $errors['filename'] = get_string('datafilenamedupliate', 'programming');
+            }
+        }
+
+        if (empty($data['id']) && empty($files['data'])) {
+            $errors['data'] = get_string('required');
+        }
+
+        if (empty($data['id']) && !empty($data['usecheckdata']) && empty($files['checkdata'])) {
+            $errors['checkdata'] = get_string('required');
+        }
+
+        return $errors;
+    }
+
+}