Issue #2: CSV Importer in cluster

src/components/com_cluster/administrator/access.xml

@@ -1,12 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <access component="com_cluster">
-	<section name="component">
-		<action name="core.admin" title="JACTION_ADMIN" description="JACTION_ADMIN_COMPONENT_DESC" />
-		<action name="core.manage" title="JACTION_MANAGE" description="JACTION_MANAGE_COMPONENT_DESC" />
-		<action name="core.create" title="JACTION_CREATE" description="JACTION_CREATE_COMPONENT_DESC" />
-		<action name="core.delete" title="JACTION_DELETE" description="JACTION_DELETE_COMPONENT_DESC" />
-		<action name="core.edit" title="JACTION_EDIT" description="JACTION_EDIT_COMPONENT_DESC" />
-		<action name="core.edit.state" title="JACTION_EDITSTATE" description="JACTION_EDITSTATE_COMPONENT_DESC" />
-		<action name="core.edit.own" title="JACTION_EDITOWN" description="JACTION_EDITOWN_COMPONENT_DESC" />
-	</section>
+  <section name="component">
+    <action name="core.admin" title="JACTION_ADMIN" description="JACTION_ADMIN_COMPONENT_DESC" />
+    <action name="core.manage" title="JACTION_MANAGE" description="JACTION_MANAGE_COMPONENT_DESC" />
+    <action name="core.create" title="JACTION_CREATE" description="JACTION_CREATE_COMPONENT_DESC" />
+    <action name="core.delete" title="JACTION_DELETE" description="JACTION_DELETE_COMPONENT_DESC" />
+    <action name="core.edit" title="JACTION_EDIT" description="JACTION_EDIT_COMPONENT_DESC" />
+    <action name="core.edit.state" title="JACTION_EDITSTATE" description="JACTION_EDITSTATE_COMPONENT_DESC" />
+    <action name="core.edit.own" title="JACTION_EDITOWN" description="JACTION_EDITOWN_COMPONENT_DESC" />
+    <action name="core.import" title="JACTION_IMPORT" description="JACTION_IMPORT_COMPONENT_DESC" />
+  </section>
 </access>

src/components/com_cluster/administrator/assets/js/import.js

@@ -0,0 +1,187 @@
+var clusterImport = {
+validateImport: function (thisfile, loaderId) {
+		let obj = jQuery(thisfile);
+		obj.closest('.controls').children('.statusbar').remove();
+
+		let format_lesson_form = obj.closest('form');
+
+		/* Hide all alerts msgs */
+		let status = new clusterImport.createStatusbar(obj); //Using this we can set progress.
+
+		/* Get uploaded file object */
+		let uploadedfile = obj[0].files[0];
+
+		if (uploadedfile == undefined)
+		{
+			alert(Joomla.Text._('COM_CLUSTER_PLEASE_SELECT_FILE'));
+			return false;
+		}
+
+		/* Get uploaded file name */
+		let filename = uploadedfile.name;
+
+		/* pop out extension of file*/
+		let ext = filename.split('.').pop().toLowerCase();
+		let fileExt = filename.split('.').pop();
+
+		if (fileExt != 'csv')
+		{
+			let finalMsg = new Object();
+			finalMsg['errormsg'] = Joomla.Text._('COM_CLUSTER_CSV_FILE_UPLOAD_ERROR');
+			status.setMsg(finalMsg);
+			jQuery('.fileupload-preview').empty();
+			jQuery('#csv-upload').val('');
+
+			window.parent.SqueezeBox.close();
+			return false;
+		}
+
+		/* IF evrything is correct so far, popolate file name in fileupload-preview*/
+
+		let file_name_container = jQuery(".fileupload-preview", obj.closest('.fileupload-new'));
+
+		jQuery(file_name_container).show();
+		jQuery(file_name_container).text(filename);
+
+		clusterImport.startImporting(uploadedfile, status, thisfile, loaderId);
+	},
+	createStatusbar: function (obj) {
+		this.statusbar = jQuery("<div class='statusbar'></div>");
+		this.filename = jQuery("<div class='filename'></div>").appendTo(this.statusbar);
+		this.size = jQuery("<div class='filesize'></div>").appendTo(this.statusbar);
+		this.success = jQuery('<div class=""></div>').appendTo(this.statusbar);
+		this.error = jQuery('<div class=""></div>').appendTo(this.statusbar);
+
+		obj.closest('.controls').append(this.statusbar);
+
+		this.setFileNameSize = function(name, size)
+		{
+			var sizeStr = "";
+			var sizeKB = size/1024;
+			if(parseInt(sizeKB) > 1024)
+			{
+				var sizeMB = sizeKB/1024;
+				sizeStr = sizeMB.toFixed(2)+" MB";
+			}
+			else
+			{
+				sizeStr = sizeKB.toFixed(2)+" KB";
+			}
+
+			this.filename.html(name);
+			this.size.html(sizeStr);
+		}
+		this.setMsg = function(msg)
+		{
+			this.statusbar.show();
+
+			if(msg['errormsg'])
+			{
+				Joomla.renderMessages({"error":[msg.errormsg]});
+				window.parent.SqueezeBox.close();
+			}
+
+			if(msg['successmsg'])
+			{
+				Joomla.renderMessages({"success":[msg.successmsg]});
+				window.parent.SqueezeBox.close();
+			}
+
+			if(msg['messages'])
+			{
+				var message = jQuery('<div>').addClass('import-messages');
+				this.success.removeClass('msg alert');
+
+				jQuery.each(msg['messages'], function(i, value){
+					var key = Object.keys(value)[0];
+					var curMessage = jQuery('<div>').addClass('alert alert-' + key).html(value[key]).get(0);
+					message.append(curMessage);
+				});
+
+				this.success.html(message);
+				this.success.show();
+			}
+		}
+	},
+	startImporting: function (file, status, thisfile, loaderId) {
+	var finalMsg = new Object();
+		if(file == undefined)
+		{
+			finalMsg['errormsg'] = file_not_selected_error;
+			status.setMsg(finalMsg);
+			return false;
+		}
+
+		var filename = file.name;
+
+		if(window.FormData !== undefined)  // for HTML5 browsers
+		{
+			var newfilename = clusterImport.sendFileToServer(file, status, thisfile, loaderId);
+		}
+		else
+		{
+			alert(Joomla.Text._('COM_CLUSTER_PLEASE_UPGRADE_YOUR_BROWSER'));
+		}
+	},
+
+	sendFileToServer: function (file, status, fileinputtag, loaderId) {
+	var formData = new FormData();
+	formData.append( 'FileInput', file );
+
+	var returnvar = true;
+	var jqXHR = jQuery.ajax({
+		 xhr: function() {
+			var xhrobj = jQuery.ajaxSettings.xhr();
+			if (xhrobj.upload) {
+				xhrobj.upload.addEventListener('progress', function(event) {
+					var percent = 0;
+					var position = event.loaded || event.position;
+					var total = event.total;
+					if (event.lengthComputable) {
+						percent = Math.ceil(position / total * 100);
+					}
+				}, false);
+			}
+			return xhrobj;
+		},
+		url:Joomla.getOptions('system.paths').base +'/index.php?option=com_cluster&task=import.csvImport&format=json',
+		type:'POST',
+		data:formData,
+		mimeType:"multipart/form-data",
+		contentType: false,
+		dataType:'json',
+		cache: false,
+		processData:false,
+		success: function(response)
+		{
+			var output = response['OUTPUT'];
+			var result = output['flag'];
+			var finalMsg = new Object();
+
+			/* File uploading on local is done*/
+			if (result == 0)
+			{
+				finalMsg['errormsg'] = output['msg'];
+				status.setMsg(finalMsg);
+				jQuery('.fileupload-preview').empty();
+			}
+			else
+			{
+				finalMsg['successmsg'] = output['msg'];
+				status.setMsg(finalMsg);
+			}
+
+			jQuery('#csv-upload').val('');
+		},
+		error: function(jqXHR, textStatus, errorThrown)
+		{
+			finalMsg['errormsg'] = jqXHR.responseText;
+			status.setMsg(finalMsg);
+			returnvar = false;
+		}
+   });
+
+	return returnvar;
+	status.setAbort(jqXHR);
+	}
+}

src/components/com_cluster/administrator/controllers/defines.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * @package    Cluster
+ *
+ * @author     Techjoomla <extensions@techjoomla.com>
+ * @copyright  Copyright (C) 2009 - 2019 Techjoomla. All rights reserved.
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+// No direct access
+defined('_JEXEC') or die;
+
+define('COM_CLUSTER_GROUP_TITLE', "cluster_name");
+define('COM_CLUSTER_GROUP_EMAIL', "email");
+define('COM_CLUSTER_CLIENT', "client");
+define('COM_CLUSTER_CLIENT_ID', "client_id");
+define('COM_CLUSTER_GROUP_ID', "cluster_id");
+define('COM_CLUSTER_CLUSTER_STATE', "state_cluster");
+define('COM_CLUSTER_CLUSTERUSERS_STATE', "state_clusterusers");
+define('COM_CLUSTER_CLUSTER_CREATED_BY', "created_by_cluster");
+define('COM_CLUSTER_CLUSTERUSERS_CREATED_BY', "created_by_clusterusers");
+define('COM_CLUSTER_CLUSTER_MODIFIED_BY', "modified_by_cluster");
+define('COM_CLUSTER_CLUSTERUSERS_MODIFIED_BY', "modified_by_clusterusers");