PHP JS Dev Test from Varun Sankar Sivasankaran

CSVImporter.php

@@ -0,0 +1,33 @@
+<?php
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/db.php');
+// helper class to export CSV into mysql ...
+	/**
+	 * CSV Importer class
+	 */
+class CSVImporter extends db{
+
+    function __construct(){
+        parent::__construct();
+    }
+
+    // imports the csv file into given table ...
+	/**
+	 * imports the given csv file into given table
+	 * @param {?string} file - file path o CSV
+     * @param {?string} tableName - name of table into which data to be imported
+	 */
+    public function importCSV($file, $tableName) {
+        if($this->isTableExists($tableName)) {
+            mysql_query( '
+            LOAD DATA LOCAL INFILE "'.$file.'"
+            INTO TABLE `' . $tableName . '`
+            FIELDS TERMINATED by \',\'
+            LINES TERMINATED BY \'\n\'
+            IGNORE 1 LINES 
+            ', $this->conn)or die(mysql_error());
+        } else {
+            die("Internal Error in imporing CSV...!!");
+        }
+    }
+}
+?>

CustomerService/CustomerImportService.php

@@ -0,0 +1,6 @@
+<?php
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/controller/CustomerController.php');
+
+$customerCntrl = new CustomerController();
+$customerCntrl->importCSV();
+echo 'success';

CustomerService/CustomerService.php

@@ -0,0 +1,5 @@
+<?php
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/CustomerService/CustomerServiceHandler.php');
+$csHandler = new CustomerServiceHandler();
+$csHandler->getCustomers();
+?>

CustomerService/CustomerServiceHandler.php

@@ -0,0 +1,30 @@
+<?php
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/model/CustomerModel.php');
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/CustomerService/RESTService.php');
+
+  // customer service handler class ...
+	/**
+	 * handler class for CustomerService
+	 */
+class CustomerServiceHandler extends RESTService {
+
+	function getCustomers() {	
+		$this->model = new CustomerModel();
+		$this->model->select('customer');
+		$rawData = $this->model->result;
+
+		if(empty($rawData)) {
+			$statusCode = 404;
+			$rawData = array('error' => 'No results found!');		
+		} else {
+			$statusCode = 200;
+		}
+
+		$requestContentType = $_SERVER['HTTP_ACCEPT'];
+		$this ->setHttpHeaders($requestContentType, $statusCode);
+
+		$response = json_encode($rawData);
+		echo $response;
+	}
+}
+?>

CustomerService/RESTService.php

@@ -0,0 +1,27 @@
+<?php
+  // The RESTService base class ...
+	/**
+	 * The RESTService base class
+	 */
+class RESTService {
+
+	private $httpVersion = "HTTP/1.1";
+
+	public function setHttpHeaders($contentType, $statusCode){
+
+		$statusMessage = $this -> getHttpStatusMessage($statusCode);
+
+		header($this->httpVersion. " ". $statusCode ." ". $statusMessage);		
+		header("Content-Type:". $contentType);
+	}
+
+	public function getHttpStatusMessage($statusCode){
+		$httpStatus = array(
+			200 => 'OK',
+			204 => 'No Content',   
+			404 => 'Not Found', 
+			500 => 'Internal Server Error');
+		return ($httpStatus[$statusCode]) ? $httpStatus[$statusCode] : $status[500];
+	}
+}
+?>

README.md

@@ -2,6 +2,15 @@
 
 A simple test for PHP / JavaScript Developers
 
+## Instruction
+1. The project files should be inside catchnz-test directory
+2. Navigate to http://domain-name/catchnz_test/index.php after uploading to server
+3. Enter database host, username, password and database name in the form when asked
+4. Once the installation is finished, it will be redirected to the home page
+5. click on "Import CSV Data" button to import data from CSV file to database
+6. Click on "Show Customers" button to load imported data from database
+7. I used MySQL DB
+
 ## Instructions
 
 1. Fork or clone this repo

config.json

@@ -0,0 +1 @@
+{"isInstalled":false,"db_host":"","db_username":"","db_password":"","db_name":""}

controller/CustomerController.php

@@ -0,0 +1,33 @@
+<?php
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/model/CustomerModel.php');
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/CSVImporter.php');
+
+  // controller class for customer
+	/**
+	 * Controller class for Customer
+	 */
+class CustomerController{
+    public $cModel;
+    private $file = "";
+
+    function __construct(){
+        $this->cModel = new CustomerModel();
+        $this->file = $_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/data/customers.csv';
+    }
+
+    public function render(){
+        include ($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/view/CustomerView.php');
+    }
+
+    public function getCustomers() {
+        $cList = $this->cModel->getAllCustomers();
+        return cList;
+    }
+
+    public function importCSV(){
+        $this->cModel->createTable();
+        $csv = new CSVImporter();
+        $csv->importCSV($this->file, 'customer');
+    }
+}
+?>

controller/CustomerListController.js

@@ -0,0 +1,23 @@
+import {renderCustomerList} from '../view/CustomerListView.js';
+$(document).ready(function(){
+    $('#btnLoad').click(function(){
+        $(this).val('Loading...');
+        $.post(window.location.href.match(/^.*\//) + '/CustomerService/CustomerService.php',)
+            .done(function(data) { 
+                    var jsonObj = JSON.parse(data);
+                    renderCustomerList(jsonObj, '#table');
+                }).fail(function(jqxhr, settings, ex) { 
+                      console.log('failed, ' , jqxhr);
+                      $('#table').html("No data found..!!");
+                });
+    });
+    $('#buttonImport').click(function(){
+        $(this).val('Loading...');
+        $.post(window.location.href.match(/^.*\//) + '/CustomerService/CustomerImportService.php',)
+            .done(function(data) { 
+                    alert("Successfully Imported data..!!");
+                }).fail(function(jqxhr, settings, ex) { 
+                    alert(failed, + jqxhr); 
+                });
+    });
+});

db.php

@@ -0,0 +1,66 @@
+<?php
+
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/install/config.php');
+// load constants, populate in html, then run ...
+	/**
+	 * db class extending from config class
+	 */
+class db extends config{
+
+    public $isConnected = false;
+
+    public function __construct() {
+        parent::__construct();
+        $this->connect();
+    }
+
+    // mysql connecting method
+	/**
+	 * connect to mysql db with the given parameters
+	 */
+    public function connect(){
+        if(!$this->isConnected)
+        {
+            $this->conn = @mysql_connect($this->db_host,$this->db_username,$this->db_password);
+            if($this->conn)
+            {
+                $selectdb = @mysql_select_db($this->db_name,$this->conn);
+                if($selectdb)
+                {
+                    $this->isConnected = true; 
+                    return true; 
+                } else
+                {
+                    return false; 
+                }
+            } else
+            {
+                return false; 
+            }
+        } else
+        {
+            return true; 
+        }
+    }
+
+    // table existance checking ...
+	/**
+	 * Lchecks if table exists in database 
+	 * @param {?string} tableName - name of table to check
+	 */
+    public function isTableExists($tableName){
+        $tablesInDb = @mysql_query('SHOW TABLES FROM '.$this->db_name.' LIKE "'.$tableName.'"');
+        if($tablesInDb)
+        {
+            if(mysql_num_rows($tablesInDb) == 1)
+            {
+                return true; 
+            }
+            else
+            { 
+                return false; 
+            }
+        }
+    }
+}
+?> 

index.php

@@ -0,0 +1,11 @@
+<?php
+include($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/controller/CustomerController.php');  
+
+//checking if database installed and redirecting
+$config = new config();
+if(!$config->isInstalled){
+    header('Location: ./install/index.php');
+}
+
+$controller = new CustomerController();  
+$controller->render();

install/config.php

@@ -0,0 +1,54 @@
+<?php
+
+  // config class ...
+	/**
+	 * config class to save get data from config file
+	 */
+class config {
+    public $isInstalled = false;
+    public $db_host = "";
+    public $db_username = "";
+    public $db_password = "";
+    public $db_name = "";
+
+    public function __construct(){
+        $this->loadConfig();
+    }
+
+      // loads config from file ...
+	/**
+	 * loads config from file
+	 */
+    public function loadConfig() {
+        $string = file_get_contents($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/config.json');
+        $json_a = json_decode($string, true);
+
+        $this->isInstalled = $json_a['isInstalled'];
+        $this->db_host = $json_a['db_host'];
+        $this->db_username = $json_a['db_username'];
+        $this->db_password = $json_a['db_password'];
+        $this->db_name = $json_a['db_name'];
+    }
+
+    public function toJson(){
+        return json_encode(
+            array(
+            'isInstalled'=> $this->isInstalled,
+            'db_host'=> $this->db_host,
+            'db_username'=> $this->db_username,
+            'db_password'=> $this->db_password,
+            'db_name'=> $this->db_name
+        ));
+    }
+
+    // saves cofig into file ...
+	/**
+	 * saves config into file
+	 */
+    public function saveConfig(){
+        $fp = fopen($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/config.json', 'w');
+        fwrite($fp, $this->toJson());
+        fclose($fp);
+    }
+}
+?>

install/form_submit.js

@@ -0,0 +1,27 @@
+  //  ...
+	/**
+	 * calls on submit button click
+	 */
+$(document).ready(function () {
+    $('#btnSubmit').click(function () {
+        if($('#inputHost').val().lenght <= 0 || $('#inputUsername').val().length <= 0 || 
+        $('#inputPassword').val().length <= 0 || $('#inputDBname').val().length <= 0) {
+            alert("Please fill all fields..!!");
+            return;
+        }
+        var json = {
+            'isInstalled': false,
+            'db_host': $('#inputHost').val(),
+            'db_username': $('#inputUsername').val(),
+            'db_password': $('#inputPassword').val(),
+            'db_name': $('#inputDBname').val()
+        }
+        $.post('form_submit.php', json)
+            .done(function (data) {
+                console.log(data);
+                window.location = '../index.php'
+            }).fail(function (jqxhr, settings, ex) {
+                console.log('failed, ', jqxhr);
+            });
+    });
+});

install/form_submit.php

@@ -0,0 +1,26 @@
+<?php
+require_once($_SERVER['DOCUMENT_ROOT'] . '/catchnz_test/install/config.php');
+$config = new config();
+$config->isInstalled = false;//$_POST['isInstalled'];
+$config->db_host = $_POST['db_host'];
+$config->db_username = $_POST['db_username'];
+$config->db_password = $_POST['db_password'];
+$config->db_name = $_POST['db_name'];
+
+$config->saveConfig();
+
+if(!$config->isInstalled){
+        $conn = mysqli_connect($config->db_host, $config->db_username, $config->db_password);
+        if (!$conn) {
+            die("Connection failed: " . mysqli_connect_error());
+        }
+        $sql = "CREATE DATABASE " . $config->db_name;
+        if (mysqli_query($conn, $sql)) {
+            mysqli_close($conn);
+            $config->isInstalled = true;
+            $config->saveConfig();
+            echo 'success';
+        } else {
+            echo "Error creating database: " . mysqli_error($conn);
+        }
+    }